DSO Quad serial port access

Products & Technology DSO Quad
4

I’m doing it on my own apps, so it’s quite simple. I just initialize the serial port in main() and print whatever I want to it:

    // USART1 8N1 115200bps debug port
    RCC->APB2ENR |= RCC_APB2ENR_USART1EN;
    USART1->BRR = 72000000 / 115200;
    USART1->CR1 = USART_CR1_UE | USART_CR1_TE | USART_CR1_RE;
    gpio_usart1_tx_mode(GPIO_AFOUT_10);
    gpio_usart1_rx_mode(GPIO_HIGHZ_INPUT);
    printf("\nBoot!\n");

But obviously that needs some libc etc. for printf to function. My Logic Analyzer application has some debug output (not very relevant to the user, of course); if you are interested the source is here, check main.cc and libc_glue.c.