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Stm32f0 i2c sample code

not just for running interrupts in your code. Pins PB8. modified 8 Nov 2013 by Scott Fitzgerald12-5-2015 · Bevor der Code näher untersucht wird: Hast du das I2C-Signal bereits mit dem Oszilloskop verifiziert? Bitte als Erstes nachholen um zu überprüfen, However, with this I2C interface LCD module, you will be able to realize data display via only 2 wires. 0°C accuracy. It is used to send out a SCK pulsetrain to reset/free any I2C devices stuck in between a transfer. In all fairness however this is a very small example. 5V, with a maximun clock frequency of 1MHz (FC model with NUCLEO-F401RE I2C Example/ TMP102. c it is obvious that this is the way to go right now. The package includes a set of examples to help the designers when creating their own fully optimized C-code application on standard microcontrollers. g. hd44780. 98 Topics 1168 Posts Last post Re: timer direct output on a … by ag123 Mon Apr 22 6-2-2015 · addr=0x3C -- the I2C address of our device-- initialize i2c i2c. I have read about PIC I2C through datasheet, but didnt succeed in An Example of the I2CPort Usage. I2C or - Do NOT post any code here. Fix issue with Increase ADC sample time for VREF STM32. There is sample code for STm32F4 i2c peripheral available, as well as demonstration code using the MPU6050 with Arduinos and mBed processors. Hi, I'm trying to configure the I2C1 on STM32F0 Discovery board, and can't find any example. Interestingly, the STM8’s big sister — the STM32F0 — faired far better in both measures, despite its Arm Cortex-M0 core (not known for ISR efficiency) and STM32CubeMX-generated code (which many scoff at for being bloated). Step 1: Create a Workspace. h) I 2 C (Inter-Integrated Circuit, referred to as I-squared-C, I-two-C, or IIC) is a multi-master serial single-ended bus and is mostly used on single boards, but can also connect to components which are linked via cable. #define F_CPU 10000000UL is 12000000UL in new lib. The best thing with UART in the STM32F0 is that signal for driver enable is provided within hardware. I am using STM32F0 Error in writing/Reading to I2C EEPROM + STM32F0 Looking at your code, This posting is to confirm that we are able to read/write to an external 24C02 EEprom using the STM32F0 Discovery board. uk/2014/08/13/stm32f0-mini-tutorial-using-the-i2cSTM32F0 Mini tutorial – Using the I2C peripheral to communicate with a HMC5883L digital compass ICSTM32F0 I2C functions. RAMBUILD sets where the code is executed. 91" OLED display STM32Cube firmware examples for STM32F0 Series Introduction The STM32CubeF0 firmware package comes with a rich set of examples running on STMicroelectronics boards. Arduino 1602 I2C library only Arduino IDE 023! By configuring the I2C for "free data format" and then reading a byte the I2C will immediately start sending clocks to input data (rather than trying to send an address). I am using I2C1 (like master) to send start condition and address to I2C2 (slave) on the same board. Posted on July 26, 2013 at 04:06. The same is true for the Data Out stream; 4 bytes are allocated for every 'ADC_Sample'. However I2C as a whole requires a reasonable amount of protocol overhead so its not the fastest method of communicating with outside peripherals. PB15 (LEDs) are configured Library 09- I2C for STM32F4. I2C is sometimes referred to as 2 wire interface or TWI. In this tutorial, I will explain how to use I2C on STM32F103 as a master device This is the code for Arduino as an I2C slave. Sweep. The communication is possible only through I2C. Not just ST Microelectronics. I send from an AVR: Start/address Wr/command/repStart/address RD/ read information / Stop) The read information is command/count/data. On the UNO, MEGA and ZERO it is attached to digital pin 13, on MKR1000 on pin 6. Tutorial - Serial I2C backpack for HD44780-compatible LCD modules with Arduino Posted by John Boxall on September 12, 2014 Using LCD modules with your Arduino is popular, however the amount of wiring requires time and patience to wire it up correctly - and also uses a lot of digital output pins. Join GitHub today. /ST_Example_Projects/Libraries/MikroElektronika/src/i2c. We are going to cover all of them, starting with the simplest, PollForConversion method. A comprehensive set of power-saving modes allows the design of low-power applications. Contribute to geoffreymbrown/STM32-Template development by creating an account on GitHub. The working code is below: void I2C_HW_tx 20-4-2012 · GitHub is home to over 31 million developers working together to host and review code, stm32f0-discovery-basic-template * @file stm32f0xx_i2c. In hex, the I2C address is 0xA0. 4 Interfacing an I2S Device to an MSP430 Device SLAA449A– March 2010– Revised March 2010 Submit Documentation for each 'ADC_Sample'. STM32F0xx snippets provide a free source-code for the STM32F0xx microcontroller family. I am using STM32F4 discovery board to perform all the experiments. External Interrupts on the STM32F0 . Auteur: Le Tan Phucarm - How to initialize I2C on STM32F0? - Stack …Deze pagina vertalenhttps://stackoverflow. LED_BUILTIN is set to the correct LED pin independent of which board is used. c - Main code file, you must add this to your project under "Source Files". com. But in many applications an ADC conversion is needed, so here we go with a tutorial reading in an external potentiometer with Eclipse, CodeWarrior and Processor Expert. It is a graphical tool that allows configuring STM32 microcontrollers very easily and generating the corresponding initialization C code through a step-by-step process. Following are the link for STM32F4 with MPU-6050 [login to view URL] The board uses an STM32L433 Cortex M4F host programmable via the USB connector using the Arduino IDE and an Arduino core created by Thomas Roell. Sample projects for the Microchip PIC micro series of microcontrollers, including the PIC12x, PIC16x, PIC18x, PIC24x, and dsPICx microcontrollers. In this part, I'll Auteur: Le Tan PhucWeergaven: 33KSTM32F0 Mini tutorial – Using the I2C peripheral to Deze pagina vertalenhttps://hsel. Search. This Year it was my first time at the Embedded Linux Conference Europe, it was really a great time. STM32F0 Discovery USART example. In this part, I'll show how to connect to an HDC1080 temperature and humidity sensor through I2C communication. So you might have started with code like this: I2C or Inter Integrated Circuit ( sometimes just referred to as just two-wire interface ) is a great method of individually communicating with over 100 devices on only 2 wires. Top . Error using TIM1 for PWM on STM32F0. The complete PCB is one-sided. This post explains the I2C peripheral working for STM32F4 Series of micro Now lets move onto the code part. net/2017/05/stm32f0 Auteur: Le Tan PhucWeergaven: 12Kstm32 - STM32F0 (master) writing multiple bytes …Deze pagina vertalenhttps://electronics. « The iotogglem0 Project Folder Structure and the makefile; Understanding the STM32F0′s GPIO part 2 » I2C or Inter-Integrated Circuit is a multimaster serial single ended bus. c in Sample-STM32F4-codes located at /I2CLib/SrcI2C EEPROM Interfacing with STM32F4 Discovery. Library to interface a HD44780 based alphanumeric LCD module with STM32F0 series of 32 bit ARM I2C, SPI, USART should be STM32 HD44780 Based LCD Interface. microcontroller, you'll need to adapt the wiring and code to match! Because SD cards require a lot of data transfer, they will give the best performance when connected up to the hardware SPI pins on a microcontroller. A list of FreeRTOS demo applications and FreeRTOS port to lots of different microcontrollers. You can use i2c_init() function to initialize the I2C peripheral. 23 Mar 2012 mattico/stm32f0-Discovery_Tools. 96 128x64 OLED graphic display ID: 326 - These displays are small, only about 1" diagonal, but very readable due to the high contrast of an OLED display. MCB517 I2C source. Use Pastebin,The STM32 GPIO example program shows how to configure and use the GPIO ports of STMicroelectronics STM32F103xx microcontroller. In the sketch you can see that I use the Adafruit DHT library that is very simple to use and if you follow the code Post your cool example code here. I want to use I2C on STM32F0 The timing value comes from ST sample code and the St I2C config utility I2C Master and Slave Operation AN0011 - Application Note using a common I2C bus. I added method to read single byte, multi bytes, write single byte, write multi bytes, write/read single byte from/to register which has 16-bit address size. The code example included is written for the EFM32_Gxxx_DK development kit, UART communication on STM32 Microcontrollers using HAL You can use the STM32CubeMX tool to create the necessary config. Suggested reading: For see the ASM code click on the icon . Use Pastebin, - Do NOT post any error codes here. h - This is an example of the hd44780_settings. The example code I2C addresses collisions? No prob! 0. A regular group is similar to a code running in the main loop. This sensor is great for all sorts of weather/environmental sensing and can even be used in both I2C and SPI! This precision sensor from Bosch is the best low-cost sensing solution for measuring humidity with ±3% accuracy, barometric pressure with ±1 hPa absolute accuraccy, and temperature with ±1. It’s the popular 24LC256 I2C EEPROM memory, from Microchip. We've already gone throught the important registers which are needed for configuring I2C in master mode. How to use I2C Bus Interface in Arduino with Sample Code Using I2C (I square C) in Arduino interface , I2C is a standard for connection MCU and peripherals together. Table of Contents. Library files and sample project code in the video for SSD1306 0. poluga OK i managed with this problem - checking of TCR flag in loop was mistake. SLOW)-- user defined function: And I can't run it using the suggested code STM32F0版Nucleo(Nucleo F030R8)を使ってドットマトリクスI2C液晶を動かすその2. simply backup of uart functions, example doesn't actually use I2C to 21 Jul 2018 STM32F0 I2C Example code. Arduino 1602 I2C library only Arduino IDE 023!91 thoughts on “ Simple ADC use on the STM32 If you read the sample code for ADC you might figure the per minute value of the water flow through stm32f0 It’s the popular 24LC256 I2C EEPROM memory, from Microchip. STM32F0 Tutorial 7: I2C example Part 2 Le Tan Phuc Both devices share the same I2C port with the STM32F0. Here I share some of my experiments and projects based on STM32 microntroller. 98 I2C oled SSD1306, with 4k7 pullups and 3v3 plugged in Hi Has anyone an example of actual working 'C' code to write to the I2C port on the Raspi. SPI Introduction STM32F4 saving data to internal flash (at runtime) « on: January 08, 2014, 03:23:10 am » I am building an application for this MCU that needs to persistently save some data - two or three string arrays (about 1k or less) at runtime (because the values are not known at compile time). There is already one page addressing it but without any details for beginners. I2C Scanner code is the discovery scanner with their specific I2S stuff etc commented out i have a tmp102 and a 128x64 0. For STM32F0 Discovery kit equiped with STM32F051R8, And this is the code I used in the video: STM32F0 I2C Slave Mode Example. * found in the timingr register values for supported input clks / i2c clk rates */. STM32F0 Series - Mainstream 32-bit MCUs. c & I2C_Driver. Also its a mistake here. co. This memory has a 32K x 8 bytes of capacity (36768 bytes if you prefer), and can works between 1. i2c_process_command function in chip/stm32/i2c-stm32f. The STM32 Primer2 Pro includes a wrapping area on an add-on module for connection to peripherals such as ADC, I2C, SPI and USART, in order to facilitate hardware extension for advanced tool users. This task should not be difficult for a developer familiar with i2c, but we simply do not have time for it. STM32F0 I2C Tutorial based on CubeMx and HAL library. In this entry I will demonstrate how to interface the MCP3008; an SPI-based analog to digital converter (ADC) integrated chip, to the Raspberry Pi. Originally published by Renesas Electronics at www STM32 I2C calculating clock control register How to set up clock control register CCR and TRISE for I2C in stm32f429i mcu for Standard Mode (SCL up to 100 kHz). Here it is. * Use of this source code is governed by a BSD-style license that can beHAL Library 16- I2C for STM32Fxxx devices. Code: Select all /* * On the Maple, let the default pins be in the same location as the Arduino * pins */ // #define SDA 19 // #define SCL 20 #define SDA PB11 // Added for STM32F103C8T6 Minimum Development Board #define SCL PB10 MCB517 I2C source. GitHub Gist: instantly share code, notes, and snippets. This module explains how to use 4x3 Membrane Keypad with STM32F0-DISCOVERY microcontroller board. EEPROM stm32f0 simulation sample Search and download EEPROM stm32f0 simulation sample open source project / source codes from CodeForge. After some email for I2C library for HAL, I’ve made it. Embedded systems course: 2nd Sample C-program/code for STM32F0 to interface Keypad/keyboard. 4. hd44780_settings_example. To select the desired I²C module, simply change the letter x in the routine prototype for a number from 0 to 5. Arduino DHT22 (AM2302) Tutorial + Library. For the demonstration I will be using PIC18F4520. PB15 (LEDs) are configured I2CLib. This is because current example is so simple right now. One of my major gripes with the STM32 family is the documentation. I2C drivers using stdlib. cST Microelectronics standard peripheral bibliotheek documentatie voor de STM32F0 familie. Code Tutorial: Communicating the I2C / TWI (2-wire interface) I take you by the hand through the process of progrmming the I2C / TWI protocol in this video. Connecting wires. c. Also the I2CConfig struct looks different than it had to be used. You can select SPI or TWI/I2C(default) module. I'm trying to talk to a slave. I2C/Master_Slave_Interrupt/i2c_master_slave_int_test. STSW-STM32048 - STM32F0xx standard The STM32F0-DISCOVERY helps you to discover the low power and minimal code footprint of the processor enables 6-11-2013 · Code Example 8: Transmitting with I2C. I2C is a two-wire, bidirectional serial bus that provides a simple, efficient method of data exchange between devices. Date: 16-02-17 MEMS Microphone – a breakthrough innovation in sound sensing. * Use of this source code is governed by a BSD-style license that can be STM32Cube firmware examples for STM32F0 Series Introduction The STM32CubeF0 firmware package comes with a rich set of examples running on STMicroelectronics boards. / chip / stm32 / i2c-stm32f0. The below example acts like a slave device reciving a register and making 2 different replies. Example: A code walk though for an SPI In this presentation, we will discuss the following topics: We will first cover an Overview of SPI. There are well over 4000 different STM32 example projects to be downloaded from the STM32Cube page, which is a whole lot. c has code for setting up I2C to be PB8/PB9 whilst sccb. The working code is below: void I2C_HW_tx(uint8_t i2cAddr, Aug 13, 2014 I'm really not a fan of the I2C implementation on the STM32F0 meaning if you're continuously streaming samples from the sensor to the Jan 7, 2019 In our previous tutorials, we have learned about SPI and I2C communication between two Arduino boards. c" I2C Slave code Supports the XEE_Read & XEE_Write functions in the i2c_test. Example Master Code This example shows how to implement a software I2C master, including clock stretching. I2C is a very commonly used inter ICs communication protocol in embedded systems. But it does demonstrate that the peripheral library usage will consume more Flash memory. com에서 예제를 검색해보던중에 I2C에 최적화된 Optimized code는 포스트에 첨부해 Source Code File:"I2C_Slave_1. Which of 18F micro to use is up to you, however, you will need to change some variable names if your PIC has 2 MSSP modules and you want this code to work out of MSSP2. There is sample code for STm32F4 i2c peripheral STM32에서 I2C 코드를 구현해보기 위해서 ST. com, the C18 or C30 compiler from www. Sweeps the shaft of a RC servo motor back and forth across 180 degrees. It is a very popular multi-master, multi-slave serial communication interface developed by Philips. It will be really helpful if someone can share a sample I2C code for WICED. § > Общие вопросы. I want to use I2C on STM32F0 The timing value comes from ST sample code and the St I2C config utility Library 09- I2C for STM32F4. For Freescale chip series; For the need to study the source code enthusiasts I2c or iic reference. This example displays the ambient temperature and 8 temperatures from thermal Description. c to make one. . Note that when debugging code with interrupts, 12-4-2017 · alternate i2c sample - hal based, two of the examples use I2C. That is why we used hard coded ACK in the code. Hands-On STM32: Basic Peripherals with HALBecoming an expert in STM32 ##I2C##. How to set up clock control register CCR and TRISE for I2C in stm32f429i mcu for Standard Mode (SCL up to 100 kHz). The following is a table describing which pins on the Arduino should be connected to 1602 I2C LCD module. In the AT24C256 datasheet, they say that the I2C address is: 1 0 1 0 0 A1 A2 R/W. Seven segment display & 3K3ohms resistors 3. delay has been modified, 2. com When one try SPI communication on STM32 MCU, he faces its poor throughput. Requirements: 1. Page 1 of 1 [ 6 posts ] My problem is with I2c. c has code for setting up I2C to be PB8/PB9 whilst sccb. Projects SPI bus sniffer I2C bus sniffer 1-wire sniffer AVR910 programmer. Assuming that you connected the pins A1 and A2 to GND, the I2C address is: 1 0 1 0 0 0 0 R/W. STM32Cube with FreeRTOS for ARM Cortex MCUs. This book aims to be the first guide around that introduces the reader to this exciting MCU portfolio from ST Microelectronics and its official CubeHAL. FreeRTOS is a small footprint RTOS for microcontrollers, professional grade and free. STM32 how to set a slave I2C port. In this tutorial we will replace one May 5, 2018 Example Code. Only the main code stop as if it was waiting for something. Note that when debugging code with interrupts, This tutorial shows how to use the STM32 UART interface in different modes using the HAL ” sample: Connect your board Replace the code in your main source Library to interface a HD44780 based alphanumeric LCD module with STM32F0 series of 32 bit ARM I2C, SPI, USART should be STM32 HD44780 Based LCD Interface. In this module a very-simple c program/code to display 0-9 on a 7-segment LED display using STM32F0-DISCOVERY microcontroller (MCU) board is explained. Here is my code, I made it based on the example code in the std periph library. This walkthrough assumes you have already setup your alternate function. Overview STM32Cube is free embedded software from ST that provides all the drivers and middleware components necessary to get up and running quickly on STM32 ARM Cortex-M microcontrollers. The working code is below: void I2C_HW_tx(uint8_t i2cAddr, uint8_t *dataTx, uint8_t length, uint8_t stopOrNotWhenSent) The sample code provided with this application note demonstrates usage of the I2C Interface in Slave Mode. Embed گزارش stm32 tutorial, stm32f0 i2c, stm32 i2c tutorial, hdc1080, stm32cubemxATMEGA32 Examples . This page will compare the devices, development tools, and IDEs all together. c is for an Arduino for STM32不過,I2C bus 可以被應用在各種控制架構上,如系統管理匯流排 touch panel demo code 一開始會先檢查 device ID This tutorial shows how to use the STM32 UART interface in different modes using the HAL ” sample: Connect your board Replace the code in your main source STM32 Analogue-to-Digital Converter (ADC) One sample conversion at a given instant. Wed, Sep 12, 2018 Companion code for this post available on Github. Does anyone has any example using an STM32F0 reading/writing to an external SPI eeprom? Or code chromium / chromiumos / platform / ec / master / . The PDL is a superset of all the code required to build any driver for the supported architecture. Robotshop is your best source for Arduino in the United States. ST Microelectronics standard peripheral bibliotheek documentatie voor de STM32F0 familie. This module explains how to use 4x3 Membrane Keypad with STM32F0-DISCOVERY microcontroller boardUsing STM32 DMA and I2C to read data from MPU6050 I noticed that the code took lots of time to read 14 so there is no chance to get the sample rate at I2C compatible serial interface temperature sensor RF E2PROM STM32Cube MCU Package for STM32F0 series (HAL, Low-Layer APIs and CMSIS FULL source code 18-10-2016 · Hi, I'm looking for sample codes for I2C on MK22F which works as I2C slave just like EEPROM device. for each 'ADC_Sample'. If RAMBUILD = 0, the code is set to execute from Flash (starts from 0x08000000). I 2 C uses two bidirectional open drain data lines, Serial Data (SDA) and Serial Clock (SCL) with pull up resistors as shown below. The approval process may take up to 48 hours. 91" OLED display can Posted on May 20, 2012 at 08:17 . After you have been approved, you should receive a link to the requested software via email. The function ARM_I2C_Control operates the I2C interface and executes various I am struggling to Write or read to AT24C256 I2C EEPROM. This IC is the most 6-11-2013 · Code Example 8: Transmitting with I2C. static const . Here is my code, Addressing registers with I2C STM32F0 HAL libraries. The code below illustrates how to Writes to and reads from an I2C port - I2CDev version. BME280: Final data sheet Document revision 1. If you are operating the I2C through polling, you simply need to change your polling such that you poll XRDY/RRDY as well as ARDY. Here is some example code for a Microchip 12F1822 microcontroller which is setup as an I2C Master to communicate with one of our Servo*Pro chips (which is an I2C slave). The program runs on the RL78/G13 RSK and demonstrates usage by simulating an EEPROM memory device, similar to the Renesas R1EX24xxx series. Note To clarify the display separate I/O have been toggled to highlight different STM32F0 Discovery USART example. Переменные объявляемые пользователем. com/questions/333428/stm32f0STM32F0 (master) writing multiple bytes by I2C to MCP4728 (slave) using StdPeriphLibrary. 6V power supply. For example, the DMA channels for I2C1 are not the same for F0 and F3. The two I2C Step By Step that explain how to start to develop a new program on STM8S is here. We have in the process of developing calculating X,Y,Z axis using MPU-6050 board with STM32F0 Controller. c . GitHub is home to over 31 million developers working together to host and review code, manage projects, and build software together. I2C_Generate_Start_Read: Generate Restart for read request. There are many ways to program ADC in STM devices. A great job, in fact. Unlike other boards from Freescale, the FRDM-KL25Z has no potentiometer or analog components on it. i2c_ptr->S |= I2C_S_IICIF_MASK; /* clear IICIF */ Below is the corrected application code. I have an issue with STM32F0 Discovery. First of all, And her’s a sample code to write in the 0x0060 the ‘0xAA’ value: CSPI Example. PDF. This file contains example code to print over the serial port of the MCB517 MCU and Evaultion Board (EVAL-MCB517QS). The sample code provided with this application note demonstrates usage of the I2C Interface in Slave Mode. e different bit at the same when Master tried to resend the address. The absolute position engine is a UBLOX CAM M8Q concurrent GNSS module connected to the STM32L433 via UART. Discovering the STM32 Microcontroller The STM32F091xB/xC microcontrollers operate in the -40 to +85 °C and -40 to +105 °C temperature ranges, from a 2. h file that the library requires (and will try to include). This is the first part of the GPIO tutorial for the This will not only make our code size significantly NUCLEO-F401RE I2C Example/ TMP102. In this case, ADC_SAMPLES has been set to 58; therefore, DMA channel 0 generates an interrupt every 58 × 125 = 7250 µs. c file to the project and then deleted it. This project requests the development of i2c interface code and a driver for the MPU-6050 will allow us to sample the accelerometer, gyroscope, and temperature from the device. Adafruit Industries, Unique & fun DIY electronics and kits Monochrome 0. by tilz0R · May 1, 2014. I2Cbasic. It runs in polling mode. I've been trying to interface the ISL29125 sensor with STM32F0 using the HAL library with I2C and have had no luck. (6) This page was last modified on 17 April 2019, at 09:27. It provides a high-level API to configure, initialize, and use a peripheral. Software Bitmap converter for LCD Modbus Master Simulator : Analog to digital converter (ADC) Every STM32 microcontroller has at least one 12-bit analog to digital converter. 3v - VCC Here is my Request for software successfully submitted. A Build Template for the STM32 Processor. A external master (maybe PC) sends 1 or 2 bytesRead about 'Anyone has STM32F0 SPI eeprom example?' on element14. assembler code examples i2c avr datasheet application such as: elementals the complete series, small engines lawn mowers craftsman snow thrower, manual citroen xsara picasso 20 hdi, the secrets of economic indicators hidden clues to future economic trends and investment Have I correctly identified the i2c connection as the culprit? If so, what can be done to improve i2c stability? Is this layout / project viable at all or have I lost my mind? Thank you to all of you who got this far! Code 1 (TCA9548A Scanner): A: No it is an ACK. I2C: Data/Address Received OK, But No Slave ACK Hi All, I searched a few pages of threads to try and find an answer to my problem but couldn't find one, so apologies if this has been done to death already (I assume it probably has!). Home Page STM32 home page STM32 Tutorials. PIC 16F877 HiTech C Code Example . Privacy policy; About Waveshare Wiki; Disclaimers . Keil MDK is the most Create simulink model file and configuration for RTW (STM32F0 Target) Create simulink model file and configuration for RTW (STM32F0 Target) Base sample time. OK i managed with this problem - checking of TCR flag in loop was mistake. Example code. In this example I am using 16MHz internal STM32F0xx – Cortex M0. - Do NOT post any code here. This program is using the stm32103 Board using MDK writing program, the program includes I2C Protocol implementation, and ways to read and write EEProm, through this instance to understand bus implementations, and ROM used a deeper understanding OK i managed with this problem - checking of TCR flag in loop was mistake. The sensor is sponsored by How to initialize I2C on STM32F0? In order to test to see if my setup was correct I designed some I2C transmission code that would transfer data in a never ending 19 responses to “ STM32F0 Mini tutorial – Using the I2C peripheral to communicate with a HMC5883L digital compass IC ” yaccard August 13, 2014 at 9:08 pm · · Reply → Very interesting. In this example I am using 16MHz internal SDK changes log. ACK = 0 and not 1. MDK for STM32F0, STM32G0, and STM32L0 provides software developers working with STM32 devices with a free-to-use professional tool suite. However, to prevent this article from getting overwhelmingly long, I’ve created review pages for each device that cover way more details about the architecture — along with more complete testing notes, different benchmarking variations, and in-depth assessment. Use Pastebin,Understanding the STM32F0's GPIO part 1 . Started by matti0010, 5th Sample code to count the external input signal using counter. c" I2C Slave code Supports the XEE_Read & XEE_Write functions in the i2c_test. by tilz0R · July 31, HAL hardware abstraction layer i2C stm32 stm32f0 stm32f4 stm32f7. With more than 600 microcontrollers, STM32 is probably the most complete ARM Cortex-M platform on the market. Hi, I have in a STM32F051k project a problem with the I2C as Slave. com//how-to-initialize-i2c-on-stm32f0How to initialize I2C on STM32F0? In order to test to see if my setup was correct I designed some I2C transmission code that See RM0091 for sample values 25-6-2017 · STM32F0 Tutorial 7: I2C example Part 2 Library files and sample project code in the video for SSD1306 0. STM32 Based Projects and Tutorials. 0 to 3. The following example code shows the usage of the I 2 C interface in Master mode. 1 Document release date May 07th, 2015 Document number BST-BME280-DS001-10 Technical reference code(s) 0 273 141 185STSW-STM32048 - STM32F0xx standard The STM32F0-DISCOVERY helps you to discover the low power and minimal code footprint of the processor enables 28-4-2019 · MLX90614 IR Thermometer Hookup Guide An introduction to I2C, on the Evaluation Board comes pre-programmed with UART-based example code, 30-5-2004 · Does anyone have example gcc code for working with temperature sensors via i2c?27-8-2012 · I have to write code for PIC18 interfaced with TC74. STM32F0 Discovery Tutorial Blinking Led A tutorial on how to setup a open source non code size limited IDE for the ST discovery board and how to write a simple blinking LED program. I m using AT90CAN128 but i think also code for generic AVR device its ok. Driver API for I2C Bus Peripheral (Driver_I2C. Hi, Looks like you have first imported the system_stm32f0xx. The working code is below: void I2C_HW_tx(uint8_t i2cAddr, 13 May 2017 Only few peripherals including I2C, SPI, DAC, TSC and WDG are left to be discovered. The STM32F0-DISCOVERY helps you to discover the STM32F0 and to develop your How to use SSD1306 I2C OLED display and NUCLEO-L053R8 HD44780 and compatible Text LCD controllers (4bit, I2C or SPI I/F) Library for Text LCD panels using the 4-bit HD44780 LCD display controller or compatible types. The working code is below: void I2C_HW_tx(uint8_t i2cAddr, uint8_t *dataTx, uint8_t length, uint8_t stopOrNotWhenSent) This post explains the I2C peripheral working for STM32F4 Series of micro controllers by ST microelectronics. The example will develop the code to generate the sample waveform illustrated below. In cooperation with STMicroelectronics, Arm offers a full-featured Keil MDK edition for STM32F0, STM32G0, and STM32L0 devices that is free of charge for end users. See the NuttShell User Guide. I2C example code from Microchip Hi, I've been reading the I2C datasheet for making a communication between PIC16F1824 and OZ8920(battery protection IC) So, I downloaded the I2C_EEPROM example code from Microchip. com/questions/26742873/how-to-initialize-i2c-on-stm32f0Nov 4, 2014 The main issue I can see with your code is that in master mode you absolutely See RM0091 for sample values that correspond to the frequency you in the STM32 at about 30-50K are far too weak for use as I2C pullups. comProducts Applications Design Sample and Buy About Code Examples; Embedded Code MPLAB® Mindi™ Software Libraries; Code Examples 今回は、stm32で扱える3つの基礎的なデータ通信方式の3つめ、i2cを扱います。Download Waijung Blockset. microchip. Hope this helps. Hi did you solve your problem if yes please send me the sample code for i2c stm32f030. I was unable to find a sample code and am having difficulties in implementing it myself. Some slave devices can reset their I2C interface when the bus is hanging (e. I kept it as minimalistic as possible. i2c_getData Der Sample Point liegt zwischen BS1 und BS2 und sollte bei 29-4-2019 · BH1750 Digital Light Sensor: BH1750FVI Is a Digital Light sensor , which is an digital Ambient Light Sensor IC for I2C bus interface. NuttShell (NSH) A small, scalable, bash-like shell for NuttX with rich feature set and small footprint. In the previous post, an example of using STM32 DMA to perform a simple data copy between 2 arrays was introduced. android_apks android_ndk android_tools angle angle/angle One very common use for interrupts is to detect changes in GPIO inputs. 13 Aug 2014 I'm really not a fan of the I2C implementation on the STM32F0 meaning if you're continuously streaming samples from the sensor to the 8 Jun 2017 The second ARM Tutorial is progressively more difficult as we tackle I2C. A template for builting STM23F0 ARM projects with GCC - szczys/stm32f0-discovery-basic-template STM32F0 Tutorial 7: I2C example Part 2 Le Tan Phuc Both devices share the same I2C port with the STM32F0. With this lib and sample code am not able to see any characters getting printed on LCD, I took the same sample code and used the old lib it works fine. Add your application code here routine so when you press the User button on the STM32F0 Discovery board you will see The code below is for STM32F103 as an I2C master. Figure 1. It is primarily used in the 10-2-2006 · Anyone have a good example of using the IIC (AKA I2C) bus on the MSP430, non-USI? I'm using an MSP430F1610. Making the I2C work with the new HAL library on ARM Cortex Mx (STM32Fxx) Processor Added 1. Thanks for the help! Cheers Read about 'Anyone has STM32F0 SPI eeprom example?' on element14. 5K pull-up resistors (R3, R4) on the I2C line (SCLK, SDA) I had an important breakthrough today with my code, so I decided I might as well document it. 000, that cooperate every day, producing hundreds of thousands of posts. If you haven't yet done so, install the ARM GCC compiler and the Eclipse IDE by following the instructions in a previous blog post, Getting Started with the ARM GCC Compiler on Windows, Part 1. Thanks, Yash Date: 30-12-16 Sample C-program/code for STM32F0 Discovery board. So, change your adress definition as follows: #define ADDR An example project for using an STM32F0 or L0 chip to communicate with a DS3231 Real-Time Clock module over I2C. Discovering the STM32 Microcontroller If you are new to STM32 microcontroller or programming, while reading datasheets you are going to encounter a lot of terms or abbreviations that you don't know. All I am trying to do is to read the device NUCLEO-F401RE I2C Example/ TMP102. [ARM]Closed: NRF24L01+ and STM32F0 - using SPI, HAL and CubeMX. Otherwise if RAMBUILD = 1, the code is executed from RAM (from 0x20000000). This example will test the I2C function of the MCB517. Objective The objective of this lecture is to learn about Serial Peripheral Interface (SPI) and micro SD memory cards. In the main function, I write a command to turn on 12-2-2013 · ChibiOS Free Embedded RTOS. (Wiring & Test) was last updated on Apr 23, 2019. c is for an OV7670 camera on PB6/PB7 Arduino for STM32 I2C/Master_Slave_Interrupt/i2c_master_slave_int_test. chromium / chromiumos / platform / ec / master / . 0. The Yocto Project Developer Day. Bye-bye ATmega328P, Hello 328PB! 114 Comments In my mind these chips especially the STM32F0 parts are the new ‘AVRs’. 10. This can be used to free up the bus. The STM32F091xB/xC microcontrollers operate in the -40 to +85 °C and -40 to +105 °C temperature ranges, from a 2. and the F3's platform. . Skip to content. かなり間が開いてしまいましたがねむいさんが膝の How to set up clock control register CCR and TRISE for I2C in stm32f429i mcu for Standard Mode (SCL up to 100 kHz). 12-5-2017 · Notice: it should be '3' instead of '2' at 8:07; 'left' instead of 'right' at 7:24 STM32F0 I2C Tutorial based on CubeMx and HAL library. mbed-os-5. Important : I²C library routines require you to specify the module you want to use. the LTC4151, after 33 ms). In total there are 33 users online :: 4 registered, 0 hidden and 29 guests (based on users active over the past 5 minutes) Most users ever online was 321 on Sun Apr 01, 2018 7:24 pm Join the community of MikroElektronika enthusiasts! The Forum consists of all our core users, more than 40. Hence, I thought STM32F0 I2C Master Mode Example. Next, we will examine the use of SPI on the PICmicro MCU. I need code examples using TWI between two AVR units (in a Master->Slave configuration) I have seen examples either with only a Master and an EEPROM or something else slave, but no examples of a full-blown communication channel between two AVRs. Example Multiplexing. 7V to 5. stackexchange. 6 V power supply. Here is pic shows how to connect an Arduino 1602 I2C module. STM32F0 Tutorial 7: I2C example Part 1. I 2 C or IIC or I2C stands for Inter-Integrated Circuit. I have started a project using the HAL, it but so far have only integrated the core stuff + watchdog, adc, pwm. Navigation: STM32F0 Target > Demos > I2C (For current version of Waijung not implement the I2C Hardware module yet, please consider to use " Soft I2C Master " block instead) C sample code for PIC micros and Hi-Tech C. Lets take a look at a practical example. Soft I2C Master. c & I2C_Driver. dusan. 91" OLED //letanphuc. It is also useful to look at the STM32L053xx Tech Data for finding alternate functions for pins. I took smallest STM32F0 with USB and UART interface. About the example projects you found: - The i2c_interrupt_transfer indeed requires fixed buffer lengths for transmission and reception, since it uses the transactional APIs from the I2C driver. Code is targeted at the Hi-Tech C compiler, from www. This is the first part of the GPIO tutorial for the This will not only make our code size significantly Sample C-program/code for STM32F0 Discovery board to display of numerics 0 to 9 on a 7-segment LED display12-2-2013 · ChibiOS Free Embedded RTOS. At least if you ask me. written by James YS Kim [email protected] The complete pinout of the microcontroller is: The hardware part is easy. The STM32F0 has a famous big brother — the STM32F4 — that’s one of the most capable Arm Cortex parts ever built. STMicroelectronics has done a good job of creating example projects for their STM32 devices. I have built my hardware and can set/clear GPIO bits , pwm etc but could do with some help in sending and receiving data to/from I2C devices. STM32CubeF0 firmware components The timing value comes from ST sample code and the St I2C config utility (xls). The first initialization routines are some basic I2C set up stuff for an stm32f0. 4 Nov 2014 The main issue I can see with your code is that in master mode you absolutely See RM0091 for sample values that correspond to the frequency you in the STM32 at about 30-50K are far too weak for use as I2C pullups. STM32 is a cool modern 32 bit ARM based microcontrollers ready to replace all the legacy 8 bit microcontrollers! Low cost chips, boards and tools makes it easy to get started with them. Lecture 12: SPI and SD cards EE-379 Embedded Systems and Applications Electrical Engineering Department, University at Buffalo Last update: Cristinel Ababei, March 2013 1. Contrast adjust. Had made sources have forgotten. 4: "Bas is an interpreter for the classic dialect of the programming language BASIC. Configure the I2C clock source. View the PDF document for more information. I also took the opportunity to attend the Advanced Lab: IoT Development at the co-located Yocto Project Developer Day which will be the topic for this article. It also has sample source in C as well as assembly which you can use in your projects for connecting i2c devices. Arduino is an open source electronic prototyping platform that allows to create robots and interactive electronic objects. setup(id,sda,scl,i2c. May 12, 2017 Notice: it should be '3' instead of '2' at 8:07; 'left' instead of 'right' at 7:24 STM32F0 I2C Tutorial based on CubeMx and HAL library. LibStock our code repository is yours. Before we can use the ADC pins we have to configure them to be in the GPIO_Mode_AN mode (adc_init_gpio ()) . In all the places 0x0F is replaced with 0xF0 and vice versa 3. 4 to 3. c. com. MDK for STM32F0/G0/L0. I don't get the structure here, but in i2c_lld. I2C Library mikroC PRO for ARM I2C_ClockSpeed, const Module_Struct *module); Description: This code demonstrates working with the I²C library. Design browser-based monitoring & control systems without the need to write a single line of HTML or C code. The details of how SPI is implemented on a PICmicro device will be examined. Bit Masks for Better Code; DIY I2C; Propeller C Basics and Projects. Step by step guide to do a custom USB HID device on STM32 using ST CubeMX. 4x3 Membrane Keypad 2. It is suitable for controlling all of our I2C based robot modules. Both read and write functions are used and it is written using the free Hi-Tech C compiler. The TPA81 connects to the ATMEGA32 using the I2C bus. The sticks, sliders and switches are connected to ADC channels 0 to 10 (see the pinout post). 4 Interfacing an I2S Device to an MSP430 Device SLAA449A– March 2010– Revised March 2010 Submit Documentation How to use FLASH in STM32 to save explored maze instead of using EEPROM Posted on April 20, 2013 by Green As we all know, STM32 doesn’t build in EEPROM in the package. I will use my custom board based on STM32L0, but any Nucleo can be used by wiring a USB cable to 5V, GND, USB_D+, USB_D-. AN10369 UART/SPI/I2C code examples Rev. Display of numerics 0 to 9 on a 7-segment LED display. I have been trying to make a slave I2C device communicate with my STM32F0 12 May 2017OK i managed with this problem - checking of TCR flag in loop was mistake. stm32f0 i2c sample code I have tested on my nRF52-DK with Seeed OLED Display. Can you please share your working I2C code. This article focuses on MEMS Microphone, its application and advantages. * Use of this source code is governed by a BSD-style license that can be Description. Unfortunately this consumes the CPU and effectively blocks tasks with a lower priority. This code snippet shows an example of a simplistic I2C communication. c Go to the documentation of this file. I am trying to establish I2C communication between STM32F030K6T6 mikrokontroller and HH10D humidity sensor. All embedded software utilities come with a full set of examples. htsoft. I have been trying to make a slave I2C device communicate with my STM32F0 board, with no success. something special/uncommon is the touch_init_i2c_free_bus function. Source Code File:"I2C_Slave_1. ECS0019 - STM32F0 - I2C drivers STM32F030F4 _stdlib. This example code is in the public domain. I am trying to interface a few sensors with STM32F2xx through I2C using WICED. Does anyone has any example using an STM32F0 reading/writing to an external SPI eeprom? Or code from other MCU using an eeprom AT93C66A? Example of I2C: Initializing I2C Walkthrough A good reference for all the registers and settings can be found in STM32L053R8 Reference Manual. Most Arduinos have an on-board LED you can control. Sample & Buy STM32F0xx snippets provide a free source-code for the STM32F0xx microcontroller family. This protocol is commonly used with RTC modules, temperature sensors, EEPROMs, IO expanders and more. Hope you find them useful. h sample files Slave Hardware Understanding the STM32F0's GPIO part 1 . mk did not build I2C. In the previous section, we covered the basics of compiling for, and uploading to, an STM32F0 series MCU using libopencm3 to make an LED blink. In this part  How to initialize I2C on STM32F0? - Stack Overflow stackoverflow. com, or CCS C. Multichannel ADC using DMA on STM32 By admin May 14, 2014 February 20, 2019 ARM Cortex Tutorial Last time we have tried to do a single conversion of one channel. I2C Bus The above sample code maps the STM32F0 I2C not working. The STM32F0-DISCOVERY helps you to discover the STM32F0 and to develop your How to use SSD1306 I2C OLED display and NUCLEO-L053R8 Library to interface a HD44780 based alphanumeric LCD module with STM32F0 series of 32 bit ARM I2C, SPI, USART should be STM32 HD44780 Based LCD Interface. (The examples for other families like F1 and F4 are irrelevant because their I2C controllers are different) The StdPeriph library is included in the firmware package, but it seems to be stripped off any I2C examples. Please note that the first 8 channels connect to PORTA, the next two are hd44780. ; Tutorial that explains how to start developing on STM8S with two examples for SILICA STM8S EvaBoard already developed plus schematics etc, click here The code will work on any PIC18 micro with built-in MSSP (master synchronous serial port, which supports SPI and I2C). stm32f0 i2c sample codeMay 13, 2017 Only few peripherals including I2C, SPI, DAC, TSC and WDG are left to be discovered. STM32CubeF0 firmware components Looking at your code, I am confident that the issue is with I2C address. 00:00 / 00:00. The I2C HAL driver can be used as follows: (#) Declare a I2C_HandleTypeDef handle structure, for example: I2C_HandleTypeDef hi2c; (#)Initialize the I2C low level resources by implement the HAL_I2C_MspInit() API: (##) Enable the I2Cx interface clock (##) I2C pins configuration (+++) Enable the clock for the I2C GPIOs Hi-Tech C I2C Master Example Code. I've made a very detailed tutorial on how to get I2C working on I want to get data from ADXL345 accelerometer,but seems that I incorrectly connect it. STM32CubeMX is an extension of the existing MicroXplorer tool. Keypad/keyboard interface to STM32F0. RAMBUILD selects the correct link script and interrupt vector table. files to enable the I2C Generate the code Library 09- I2C for STM32F4. Learn how to add the associated RL78/G13 sample code to a new or existing CubeSuite+ workspace. Who is online. I ported my old for F4 to HAL based libraries for F0/F4/F7 series. Interfacing 16×2 LCD with 8051 using Keil C is bit complex because there is no powerful libraries in Keil C. This is because there is too long of an idle time between SPI read/write operations The below image has the real SPI signals which were captured during the standard SPI communication and you can see the… Welcome back! Enter your e-mail address and password to login your myST user. STM32F0 Tutorial 7: I2C example Part 2 153 بازدید This is a follow up video where I show how to display the temperature and humidity data reading from HDC1080 sensor on a 0. First of all, you can find the datasheet here. 91" OLED display using SSD1306 driving chip. The hardware SPI pins are much faster than 'bit-banging' the interface code using another set of pins. All-Projects Rights inherited by all other projects All-Users Individual user settings and preferences. Programming 24LC256 I2C EEPROM By admin September 12, 2013 September 11, 2013 Other MCU Projects In many microcontroller projects you need some non-volatile memory – which preserves data even when power is off. Several versions run up to 180 MHz, with 2 MB of flash and up to 364 KB of RAM (in the case of the STM32F469). Free MDK for STM32 F0/G0/L0 The ADC code can be found in my github repository in the file adc. Date: 16-02-17 SMPS design: Switch mode power supply based on Dual Switch Flyback Topology. This example code should explain the basic bare metal program in assembly language. Need an easy to program brain for your robot? Consider an Arduino microcontroller. Add your application code here */ routine so when you press the User button on the STM32F0 Discovery board you will see text The first initialization routines are some basic I2C set up stuff for an stm32f0. I got confused with the following: block_address = 0x00; // Set the eeprom block address that we will write the data to two of the examples use I2C. 0 - 18W39; STM32F0. I resume this brief series of articles with another device I usually use. Abstract: 8051 microcontroller based Digital clock with alarm assembler Code Examples i2c avr led display alarm clock 8051 microcontroller atmel dac 8051 assembly code atmel 8051 i2c sample code 8051 code assembler for data encryption standard 8051 code assembler for AES NEC78K0R interface bluetooth with AVR kits Text: be copied to the accumulator. You can also write similar code for other compilers. 20 Apr 2012 Program the Mode, Timing , Own address, Ack and Acknowledged When using I2C in Fast Mode Plus, SCL and SDA pin 20mA current drive Use of this source code is governed by a BSD-style license that can be. Abstract: Power-electronics engineers designing switched mode power supplies (SMPS) are faced with the challenges of limited space, the need to meet worldwide energy regulations, and ease of design. Now, I will show another example with DMA and I2C to read raw data from MPU6050 acceleration and gyroscope sensor directly. ; BAS 2. h sample files Slave Hardware All embedded software utilities come with a full set of examples. This is exclusive content that, if you are willing, you can become an expert in communicating with the I2C. 2. SPI stands for and example code to make them easier to use. working together to host and review code, manage projects, and build software together. Software I2C impementation External I2C EEPROM memory. MikroElektronika produces a wide range of development tools, compilers and books for various microcontroller families. Spinnig the potentimeter clockwise is to increase contrast ,spinning unclockwise is to decrease it Example code. To solve this problem we have developed a LCD library which includes commonly used features, you just need to include our header file and use it. Итак, язык c - типичный External Interrupts on the STM32F0 . In this example I am using 16MHz internal oscillator ( HSI ) as clock source. The examples are organized by board and provided with preconfigured projects for the main supported toolchains (see Figure 1 and Table 2). This time, we’ll take a look at alternate pin functions, and use one of the four USARTs on our chip to send information back to our Blink Turns an LED on for one second, then off for one second, repeatedly. PDL v3. This section of the tutorial will introduce you to SPI and its concepts. STM32F0 and I2c. STM32F0 I2C - Tutorial 7 with STM32CubeMX 13 May 2017 on stm32 i2c tutorial , stm32f0 i2c , stm32 i2c cubemx , stm32 i2c hal , stm32f0 tutorial Hi everyone, I’m back :) Another year has come with lots of opportunities and challenges presented to me as I now become a fresh PhD candidate at Nanyang Technological University (NTU) Singapore. Unfortunately there is no example code for emulating an EEPROM memory in I2C slave mode with KSDK. Please either remove the non-existing file from Solution Explorer, or restore it on the disk. The STM32F030x4/x6/x8/xC microcontrollers operate in the -40 to +85 °C temperature range from a 2. Assembler Code Examples I2c Avr Datasheet Application. Actually I hardcoded ack bit in the code because while my team was implementing this code on Basys2 FPGA, we had to face bit conflict issue i. Here is my example code for SSD1306. HD44780 and compatible Text LCD controllers (4bit, I2C or SPI I/F) Library for Text LCD panels using the 4-bit HD44780 LCD display controller or compatible types. x is a complete redesign of the library to support the dual core and unique peripherals of the PSoC 6 MCU architecture. It was a bit of a pain getting the clocks sorted out as the sample code was either for different families or for the old libraries. Prerequisite(s)How to use STM32 Library Examples in ATOLLIC TrueSTUDIO Lite. The Raisonance order code is STM32 Primer2 Pro. This page has been accessed 672,075 times. Stemming from our push button code which has to poll the P1IN register, enabling an interrupt on a GPIO would allow the hardware to signal the software when the input has changed values. How to use STM32 Library Examples in ATOLLIC TrueSTUDIO Lite. Posted on July 26, 2013 at 04:06 . The STM32 Primer2 “Pro” also allows unlimited debugging of the target microcontroller. I think this project would not be useful in your case. Nothing以ADC的Basic_Example为例 即可实现烧写、调 试 19 Presentation Title 10/04/2014 4/10/2014 STM32F0标准外设库 ? 以I2C的I2C_EEPROM为 Buy among 1000+ MikroElektronika original products: Compilers, Development boards, Add-on Boards, Programmers Debuggers and more. SCL- PC6(with 10k resistor) SDA- PC7(with 10k resistor) SDO- GND CS - VCC GND - GND 3. Following code is written for Hi-Tech C compiler. 01 — 06 April 2005 Application note Document information Info Content Keywords UART, SPI, I2C Abstract Simple code examples are provided for UART0, SPI and I2C. The problem is, that after I call I2C_TransferHandling() the I2C_ISR_TXIS flag won't be set, and the program stucks in the loop waiting for it. Your help is much appreciated, This tutorial helps you understand how to implement I2C protocol on 8051 microcontroller. The code must work with our current microcontroller configuration (60MHz clock, 60MHz peripheral bus, etc). Some changes in new libs are 1. It can be used on many ARM Cortex M processors from M0 to M7 and from different manufacturers. In this method, Controller continuously poll the ADC device and when the data conversion is complete, it can be read using HAL_ADC_Getvalue() function. I have found that there are other differences between the I2C implementation on the F0 and F3 platforms, as can be seen by examining the STM I2C CPAL libraries for the respective platforms. Ricardo Pereira. It is written in C for the PIC processor, but should be applicable to most processors with minor changes to the I/O pin definitions. 28-3-2019 · STM32L0 HAL驱动 串口 DMA,I2C读MPU6050 ,论坛-意法半导体STM32/STM8 /* USER CODE BEGIN 0 */ /* USER CODE END 0 */ I2C_HandleTypeDef hi2cx; /* I2C1 init Alternativ könnte man das Modul auch per #define festlegen um den Code portable zu halten. Download with Google Download with Facebook or download with email. Originally published by Renesas Electronics at www For example, if you have a board with a hardware problem then the NACK detection can quickly help you identify those issues. Use of this source code is governed by a BSD-style license that can be. 4: Seamless integration of Michael Haardt's BAS 2. Can anyone give me an example code to config, init and send and receive data through the I2C bus. h - Main include file, you must include this in any files you wish to use the library. Example code for using an EEPROM chip on the same bus is also included. A fairer comparison could be achieved with a significantly larger project. STM32F0 I2C Example code. Thanks for pointing out