PE生成的I2C流数据读取信号每次只能读到1个字节（已解决）

只看该作者 · 2014-6-17 19:48

本帖最后由 FSL_TICS_A 于 2014-7-2 15:46 编辑

芯片是KL25Z128，为什么用PE生成的I2C流数据读取信号，每次只能读到1个字节数据就发个停止位终结了呢？代码如下，子函数全部由PE生成：
void temp_ctrl(void)
{
      //设置温度低阀值寄存器
      I2C_Enable(I2C_DeviceData);
      user_delay_1ms(5);
      I2C_SelectSlaveDevice(I2C_DeviceData, LDD_I2C_ADDRTYPE_7BITS, (0x90>>1));
      user_delay_1ms(5);
      tmp_send_buffer[0] = TMP_TEMP_ADDRESS;
      I2C_MasterSendBlock(I2C_DeviceData, tmp_send_buffer, 1U, LDD_I2C_SEND_STOP);
      user_delay_1ms(5);
      I2C_Disable(I2C_DeviceData);
      user_delay_1ms(5);

      //设置温度低阀值寄存器
      I2C_Enable(I2C_DeviceData);
      user_delay_1ms(5);
      I2C_SelectSlaveDevice(I2C_DeviceData, LDD_I2C_ADDRTYPE_7BITS, (0x91>>1));
      user_delay_1ms(5);
      I2C_MasterReceiveBlock(I2C_DeviceData, tmp_recv_buffer,2, LDD_I2C_SEND_STOP);
      user_delay_1ms(50);
      I2C_Disable(I2C_DeviceData);
      user_delay_1ms(5);
}