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/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : readme.txt
* Author : MCD Application Team
* Version : V2.0.1
* Date : 06/13/2008
* Description : Description of the I2C interrupt mode example.
********************************************************************************
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
Example description
===================
This example provides a description of how to transfer a data buffer from I2C1 to
I2C2 using interrupts.
After enabling the two I2C peripherals and both event and buffer interrupts,
the transfer in 7-bit addressing mode starts after I2C1 start condition generation.
Each time an event occurs on the master or the slave, it is managed in the I2C1 or
I2C2 interrupt routine, respectively. In this application, Tx_Buffer is transmitted
from the master I2C1 to the slave I2C2 and stored into Rx_Buffer.
At the end of the transfer, the PEC is transmitted from master to slave and it is
stored in the PEC_Value variable by I2C2 after reception.
The transmitted and received buffers are compared to check that all data have been
correctly transferred.
The communication clock speed is set to 200KHz.
Directory contents
==================
stm32f10x_conf.h Library Configuration file
stm32f10x_it.c Interrupt handlers
stm32f10x_it.h Interrupt handlers header file
main.c Main program
Hardware environment
====================
This example runs on STMicroelectronics STM3210B-EVAL and STM3210E-EVAL evaluation
boards and can be easily tailored to any other hardware.
- Connect I2C1 SCL pin (PB.06) to I2C2 SCL pin (PB.10)
- Connect I2C1 SDA pin (PB.07) to I2C2 SDA pin (PB.11)
- Check that a pull-up resistor is connected on one I2C SDA pin
- Check that a pull-up resistor is connected on one I2C SCL pin
Note: The pull-up resitors are already implemented on the STM3210B-EVAL and
STM3210E-EVAL evaluation boards.
How to use it
=============
In order to make the program work, you must do the following :
- Create a project and setup all your toolchain's start-up files
- Compile the directory content files and required Library files :
+ stm32f10x_lib.c
+ stm32f10x_i2c.c
+ stm32f10x_rcc.c
+ stm32f10x_nvic.c
+ stm32f10x_gpio.c
+ stm32f10x_flash.c
- Link all compiled files and load your image into target memory
- Run the example
******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE******
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