• State Not Answered
  • Locked Locked
  • Replies 2 replies
  • Subscribers 15 subscribers
  • Views 2217 views
  • Users 0 members are here
Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

How do print asm variable out in firmware?

ele

Now I'm trying to understand the CM3 firmware code. But especially I found some of the code is made by asm code as the below,


unsigned char UartPutc(unsigned char my_ch)
{
  while ((CMSDK_UART2->STATE & 1)); // Wait if Transmit Holding register is full
  CMSDK_UART2->DATA = my_ch; // write to transmit holding register
  return (my_ch);
}
// Uart string output
void UartPuts(unsigned char * mytext)
{
  unsigned char CurrChar;
  do {
    CurrChar = *mytext;
    if (CurrChar != (char) 0x0) {
      UartPutc(CurrChar);  // Normal data
      }
    *mytext++;
  } while (CurrChar != 0);
  return;
}
#if defined ( __CC_ARM   )
/* ARM RVDS or Keil MDK */
__asm void FlashLoader_ASM(void)
{
   MOVS  R0,#0
   LDR   R1,[R0]     ; Get initial MSP value
   MOV   SP, R1
   LDR   R1,[R0, #4] ; Get initial PC value
   BX    R1
}

So I want to print MSP value and PC value out by using UartPutc function. Would you please guide me how am I supposed to do to print it out ?