blackpill/include/board.h

Peripheral MCU configuration for the Black Pill board.

LED0_PORT
1
GPIOB
LED0_PIN
1
GPIO_PIN(PORT_B, 12)
LED0_MASK
1
(1 << 12)
LED0_ON
1
(LED0_PORT->BSRR = (LED0_MASK << 16))
LED0_OFF
1
(LED0_PORT->BSRR = LED0_MASK)
LED0_TOGGLE
1
(LED0_PORT->ODR  ^= LED0_MASK)
XTIMER_WIDTH
1
(16)
XTIMER_BACKOFF
1
5
STDIO_UART_DEV

Use the 2nd UART for STDIO on this board.

1
UART_DEV(1)
void board_init(void)

Initialize board specific hardware, including clock, LEDs and std-IO.