I2C协议在从站传输模式下未检测到STOP条件

当主机将ACK位设置为0时，从机将触发ACK故障



以下为原文





The ACK failure is triggered in the slave when master sets ACK bit to 0

我在最后一周苦苦挣扎，尝试了各种组合和排列，并且已经没有想法了 - 我要求将主接收器和从发送器作为中断状态机实现，如STM8S数据表所述，轮询不是选项。任何帮助将受到高度赞赏



以下为原文






I am struggling for the last one week and have tried various combinations and permutations and have ran out of ideas - I have a requirement to implement Master-receiver and Slave-transmitter as interrupt state machines as outlined by the STM8S datasheet, polling is not an option. Any help will be highly appreciated

这是I2C中断服务程序中的主接收器实现
 
 / * MASTER RECEIVER，读写字节= 1 * /
 
 否则if（I2C_CheckEvent（I2C_EVENT_MASTER_BYTE_RECEIVED））
 {
 / * EV7_1：RxNE = 1，通过读取DR寄存器清除，程序ACK = 0和STOP请求* /
 如果（SECOND_LAST_BYTE）
 {
 I2C_AcknowledgeConfig（I2C_ACK_NONE）;
 I2C_CurrentReadData = I2C_ReceiveData（）;
 }
 否则如果（LAST_BYTE）
 {
 I2C_CurrentReadData = I2C_ReceiveData（）;
 I2C_GenerateSTOP（ENABLE）;
 }
 // EV7：RxNE = 1，通过读DR寄存器清零
 其他
 {
 I2C_CurrentReadData = I2C_ReceiveData（）;
 }
 I2C_ClearFlag（I2C_FLAG_RXNOTEMPTY）;
 }



以下为原文





Here is Master-receiver implementation in I2C interrupt service routine

/*MASTER RECEIVER, read-write byte=1*/

   else if(I2C_CheckEvent(I2C_EVENT_MASTER_BYTE_RECEIVED))
   {
   /*EV7_1: RxNE=1, cleared by reading DR register, program ACK=0 and STOP request*/
   if(SECOND_LAST_BYTE)
   {
    I2C_AcknowledgeConfig(I2C_ACK_NONE);
    I2C_CurrentReadData = I2C_ReceiveData();  
   }   
   else if(LAST_BYTE)
   {
    I2C_CurrentReadData = I2C_ReceiveData();
    I2C_GenerateSTOP(ENABLE);
   }
   //EV7: RxNE=1, cleared by reading DR register
   else
   {   
    I2C_CurrentReadData = I2C_ReceiveData();
   }
   I2C_ClearFlag(I2C_FLAG_RXNOTEMPTY);   
  }