Tool/software:
I want to communicate data using 2 TMS570LS1224 cards. First of all, the number I send from the keyboard will go to the first card via i2c communication. Then, data will be transferred from the first card to the second card via UART communication. Then, the LED on the second card will turn on according to the number I send. (For example, when I send the number 1 from the keyboard, the LED will turn on, and when I send the other numbers, the LED will turn off).
/** @file sys_main.c
* @brief Application main file
* @date 11-Dec-2018
* @version 04.07.01
*
* This file contains an empty main function,
* which can be used for the application.
*/
/*
* Copyright (C) 2009-2018 Texas Instruments Incorporated - www.ti.com
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/* USER CODE BEGIN (0) */
#include "sci.h"
#include "i2c.h"
#include <stdio.h>
/* USER CODE END */
/* Include Files */
#include "sys_common.h"
/* USER CODE BEGIN (1) */
/* USER CODE END */
/** @fn void main(void)
* @brief Application main function
* @note This function is empty by default.
*
* This function is called after startup.
* The user can use this function to implement the application.
*/
/* USER CODE BEGIN (2) */
#define DATA_COUNT 10
#define Slave_Address 0x20
uint8_t recieved_value = 0;
/* USER CODE END */
int main(void)
{
/* USER CODE BEGIN (3) */
_enable_IRQ();
i2cInit();
sciInit();
int sayi;
i2cSetOwnAdd(i2cREG1, Slave_Address);
i2cEnableNotification(i2cREG1, I2C_RX_INT);
while(1){
printf("Bir sayi girin: ");
scanf("%d", &sayi); // Kullanıcıdan bir tamsayı alır
printf("Girdiginiz sayi: %d\n", sayi);
// klavyeden alınan değeri birinci karta gönder
i2cSetDirection(i2cREG1, I2C_TRANSMITTER);
i2cSetSlaveAdd(i2cREG1, Slave_Address);
i2cSetCount(i2cREG1, sizeof(sayi));
i2cMasterTransmit(i2cREG1, Slave_Address, (uint8_t*)&sayi, sizeof(sayi), true);
// i2c devam ederken burda bekle
while(i2cIsBusBusy(i2cREG1));
printf("I2C ile veri gönderildi: %d\n", sayi);
// burada da i2c üzerinden değeri alıyoruz
i2cSetDirection(i2cREG1, I2C_RECEIVER);
i2cSetCount(i2cREG1, DATA_COUNT);
}
/* USER CODE END */
return 0;
}
/* USER CODE BEGIN (4) */
void i2cNotification(i2cBASE_t *i2c, uint32 flags) {
if (flags & I2C_RX_INT) {
i2cReceive(i2cREG1, sizeof(recieved_value), &recieved_value);
while(i2cIsBusBusy(i2cREG1) == true);
while(i2cIsStopDetected(i2cREG1) == 0); // burda stop gelene kadar bekliyoruz
i2cClearSCD(i2cREG1); // burada ise stop durumunu temizliyoruz.
printf("%d\n",recieved_value);
sciSend(scilinREG, sizeof(recieved_value), &recieved_value);
printf("recieved : %d\n",recieved_value);
}
}
/* USER CODE END */
