[参考译文] IWRL6432AOPEVM：IWRL6432 i2c 从模式

Other Parts Discussed in Thread: SYSCONFIG

https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1607206/iwrl6432aopevm-iwrl6432-i2c-slave-mode

器件型号： IWRL6432AOPEVM
主题： SysConfig 中讨论的其他器件

这是我的 i2c 测试示例、如果 ReadCount 设置为 1 字节、transferCallback 将正确执行。 如果 ReadCount 设置的值大于 1 字节、则在多次重复测试后、它将卡住。

void        gsd_I2C_transferCallback(I2C_Handle handle,
                                  I2C_Transaction *msg,
                                  int32_t transferStatus)
{

    if (msg->readBuf != 0) {
        SemaphoreP_post(&i2c_mutex);
    }

}

static void i2c_CLI_task(void* args)
{
    I2C_Handle      i2cHandle;
    I2C_Transaction i2cTransaction;
    I2C_Transaction i2c_tx;
    uint8_t         txBuffer[4];
    uint8_t         rxBuffer[10];
    uint8_t         offset;
    uint32_t dump_reg = 0xeeeeeeee;
    uint32_t virtual_reg = 0;
    uint8_t find_flag = 0;
    
    i2cHandle = gI2cHandle[CONFIG_I2C0];
    SemaphoreP_constructBinary(&i2c_mutex, 0);

    I2C_Transaction_init(&i2c_tx);
    i2c_tx.writeBuf   = txBuffer;
    i2c_tx.writeCount = 4;
    i2c_tx.controllerMode = 0;

    while(1) {
        I2C_Transaction_init(&i2cTransaction);
        i2cTransaction.readBuf = rxBuffer;
        i2cTransaction.readCount = 1;    // if i use readCount equal 6 and i2c master repeat send more than 10 times, transferCallback will not execute
        i2cTransaction.writeBuf = &dump_reg;
        i2cTransaction.writeCount = 1;
        i2cTransaction.controllerMode = 0;

        /* Blocking Mode: Halt program until message received from controller
           Callback Mode: Trigger interrupt callback upon message received from controller */
        CLI_write("recv\n");
        I2C_transfer(i2cHandle, &i2cTransaction);

        SemaphoreP_pend(&i2c_mutex, SystemP_WAIT_FOREVER);

    }
}