FIX: JTAG disable

r2axz · Nov 18, 2020 · 98ea97f · 98ea97f
1 parent 80693ef
commit 98ea97f
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/usb_cdc.c b/usb_cdc.c
@@ -591,6 +591,7 @@ void usb_cdc_reset() {
      * this frees PA15, PB3, PB4 (needed for DSR inputs).
      */
     RCC->APB2ENR |= RCC_APB2ENR_AFIOEN;
+    AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_JTAGDISABLE;
     RCC->AHBENR |= RCC_AHBENR_DMA1EN;
     /* DSR/DCD inputs configuration */
     GPIOB->CRL &= ~(GPIO_CRL_CNF4 | GPIO_CRL_CNF6 | GPIO_CRL_CNF7);