STM32F4 discovery RTC problem

[matas]

Posted on July 07, 2015 at 10:32The original post was too long to process during our migration. Please click on the attachment to read the original post.

[matas]

Posted on July 07, 2015 at 12:08

Found out the problem myself :) The thing that stopped everything was this part:

 if (RCC->BDCR & 0x1)        printf(''LSE On\n'');      else        printf(''LSE Off\n'');   if (RCC->BDCR & 0x2)        printf(''LSE Ready\n'');    else        printf(''LSE Not Ready\n'');   if (RCC->BDCR & 0x4)        printf(''LSE ByPass On\n'');    else        printf(''LSE ByPass Off\n'');   if (RCC->BDCR & 0x8000)        printf(''RTC Clock Enabled\n'');    else        printf(''RTC Clock Disabled\n'');           switch(RCC->BDCR & 0x300)    {        case 0x100 : puts(''RTC Clock Source LSE''); break;        case 0x200 : puts(''RTC Clock Source LSI''); break;        case 0x300 : printf(''RTC Clock Source HSE/%d'', (RCC->CFGR >> 16) & 0x1F); break;        default : puts(''RTC Clock Unknown'');    }it didn't know where to printout this stuff :)

[Tesla DeLorean]

Posted on July 07, 2015 at 14:22

You'd need some semi-hosting code to push the output to a USART