ST_Dalislave

SRAM.11 · ‎2024-01-09

Hi people,

I just work on a Dali project and trying to learn from the demo library I am getting some error can anyone PLEASE help me how to proceed.

I am trying in STM32G0

I am getting error as EXTI.Instruture undeclared i tried EXTI.Instruct but still its showing error 'NVIC_InitStructure' undeclared

hOW CAN I DECLARE THAT FUNCTIONS


void receive_tick(void)
{
  // Because of the structure of current amplifier, input has
  // to be negated
  actual_val = get_DALIIN();
  tick_count++;

  // edge detected
  if(actual_val != former_val)
  {
    switch(bit_count)
    {
    case 0:
      if (tick_count > 2)
      {
        tick_count = 0;
        bit_count  = 1; // start bit
      }
      break;
    case 17:      // 1st stop bit
      if(tick_count > 6) // stop bit error, no edge should exist
        flag = ERR;
      break;
    default:      // other bits
      if(tick_count > 6)
      {
        if(bit_count < 9) // store bit in address byte
        {
          address |= (actual_val << (8-bit_count));
        }
        else             // store bit in data byte
        {
          dataByte |= (actual_val << (16-bit_count));
        }
        bit_count++;
        tick_count = 0;
      }
      break;
    }
  }else // voltage level stable
  {
    switch(bit_count)
    {
    case 0:
      if(tick_count==8)  // too long start bit
        flag = ERR;
      break;
    case 17:
      // First stop bit
      if (tick_count==8)
      {
        if (actual_val==0) // wrong level of stop bit
        {
          flag = ERR;
        }
        else
        {
          bit_count++;
          tick_count = 0;
        }
      }
      break;
    case 18:
      // Second stop bit
      if (tick_count==8)
      {
        flag = NO_ACTION;

        //enable EXTI
        EXTI_InitStructure.EXTI_Line = EXTI_LINE_6;
        EXTI_InitStructure.EXTI_Mode = EXTI_MODE_INTERRUPT;
        EXTI_InitStructure.EXTI_Trigger = EXTI_TRIGGER_FALLING;
        EXTI_InitStructure.EXTI_LineCmd = ENABLE;
        EXTI_Init(&EXTI_InitStructure);

        DataReceivedCallback(address,dataByte);
      }
      break;
    default: // normal bits
      if(tick_count==10)
      { // too long delay before edge
        flag = ERR;
      }
      break;
    }
  }
  former_val = actual_val;
  if(flag==ERR)
  {
    flag = NO_ACTION;
    //enable EXTI
    EXTI_InitStructure.EXTI_Line = EXTI_LINE_6;
    EXTI_InitStructure.EXTI_Mode = 'EXTI_MODE_INTERRUPT';
    EXTI_InitStructure.EXTI_Trigger = EXTI_TRIGGER_FALLING;
    EXTI_InitStructure.EXTI_LineCmd = ENABLE;
    EXTI_Init(&EXTI_InitStructure);
  }
}

waclawek.jan · ‎2024-01-09

Duplicate

https://community.st.com/t5/stm32-mcus-products/gpio-exti/td-p/626436