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/**
******************************************************************************
* @file I2C_10bitsCommunication\main_master_10bit.c
* @brief This file contains the main function for I2C configured in master 10 bit addressing mode.
* @author STMicroelectronics - MCD Application Team
* @version V1.0.1
* @date 09/22/2008
******************************************************************************
*
* 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.
*
* <h2><center>© COPYRIGHT 2008 STMicroelectronics</center></h2>
* @image html logo.bmp
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm8s_lib.h"
/* Evalboard I/Os configuration */
#define LEDS_PORT (GPIOH)
#define LED1_PIN (GPIO_PIN_3)
#define LED2_PIN (GPIO_PIN_2)
#define LED3_PIN (GPIO_PIN_1)
#define LED4_PIN (GPIO_PIN_0)
/**
* @addtogroup I2C_10bitsCommunication
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define I2C_SLAVE_ADDRESS10 ((u16)0x0330)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
u8 HEADER_ADDRESS_Write = (((I2C_SLAVE_ADDRESS10 & 0xFF00) >> 7) | 0xF0);
/* Private function prototypes -----------------------------------------------*/
void Delay (u16 nCount);
/* Private functions ---------------------------------------------------------*/
void Delay(u16 nCount)
{
/* Decrement nCount value */
while (nCount != 0)
{
nCount--;
}
}
/* Public functions ----------------------------------------------------------*/
/**
* @brief How to perform a communication between 2 I2C in 10bit addressing mode, fast mode (Master transmitter)
* @par Examples description
* - Send a buffer to a second 10bit addressed I2C device.
* @par Parameters:
* None
* @retval void None
* @par Required preconditions:
* None
* @par Called functions:
* - GPIO_Init
* - GPIO_WriteHigh
* - GPIO_WriteReverse
* - I2C_GenerateSTART
* - I2C_GenerateSTOP
* - I2C_DeInit
* - I2C_Send7bitAddress
* - I2C_SendData
* - I2C_CheckEvent
* - I2C_ClearFlag
*/
void main(void)
{
u8 Tx_Idx = 0;
u8 tmpbuff[4] = {0x00, 0x55, 0xAA, 0xFF};
/* Initialize I/Os in Output Mode */
GPIO_Init(LEDS_PORT, (LED1_PIN | LED2_PIN | LED3_PIN), GPIO_MODE_OUT_PP_LOW_FAST);
/* Optional: put here as example only */
I2C_DeInit();
/* Initialize the I2C */
I2C_Init(200000, 0x0102, I2C_DUTYCYCLE_2, I2C_ACK_CURR, I2C_ADDMODE_10BIT, 16);
/* All LEDs are ON per default */
GPIO_WriteHigh(LEDS_PORT, (LED1_PIN | LED2_PIN | LED3_PIN | LED4_PIN));
/*----- Transmission Phase -----*/
/* Send START condition */
I2C_GenerateSTART(ENABLE);
/* Test on EV5 and clear it */
while (!I2C_CheckEvent(I2C_EVENT_MASTER_START_SENT));
/* Send Header to Slave for write */
I2C_SendData(HEADER_ADDRESS_Write);
/* Test on EV9 and clear it */
while (!I2C_CheckEvent(I2C_EVENT_MASTER_HEADER_ACKED));
/* Send slave Address for write */
I2C_Send7bitAddress(0x30, I2C_DIRECTION_TX);
/* Test on EV6 and clear it */
while (!I2C_CheckEvent(I2C_EVENT_MASTER_ADDRESS_ACKED));
I2C_ClearFlag(I2C_FLAG_ADDRESSSENTMATCHED);
/* Send data */
Tx_Idx = 0;
while (Tx_Idx < 4)
{
/* Send data */
I2C_SendData(tmpbuff[Tx_Idx++]);
/* Test on EV8 and clear it */
while (!I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_TRANSMITTED));
}
/* Send STOP Condition */
I2C_GenerateSTOP(ENABLE);
/* Toggle all LEDs when I2C communication is terminated */
while (1)
{
GPIO_WriteReverse(LEDS_PORT, (LED1_PIN | LED2_PIN | LED3_PIN | LED4_PIN));
Delay((u16)60000);
}
}
/**
* @brief Reports the name of the source file and the source line number where
* the assert error has occurred.
* User can add his own implementation to report the file name and line number.
* ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line)
* @retval void None
* @par Required preconditions:
* None
* @par Called functions:
* None
*/
#ifdef FULL_ASSERT
void assert_failed(u8 *file, u16 line)
#else
void assert_failed(void)
#endif
{
/* Add your own code to manage an assert error */
/* Infinite loop */
while (1)
{
}
}
/**
* @}
*/
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/
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