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stm32f1/gpio: pin direction readout of gpio_read was invalid

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This commit is contained in:
DipSwitch 2015-11-06 16:57:10 +01:00
parent d3558d26b2
commit 4186e38976
1 changed files with 1 additions and 1 deletions
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2
cpu/stm32f1/periph/gpio.c
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@ -170,7 +170,7 @@ int gpio_read(gpio_t pin)
GPIO_TypeDef *port = _port(pin);
int pin_num = _pin_num(pin);
if (port->CR[pin_num >> 3] & (0x3 << (pin_num & 0x7))) {
if (port->CR[pin_num >> 3] & (0x3 << ((pin_num & 0x7) << 2))) {
/* pin is output */
return (port->ODR & (1 << pin_num));
}