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Diffstat (limited to 'ports/stm32f4/common-hal/microcontroller/Pin.c')
-rw-r--r--ports/stm32f4/common-hal/microcontroller/Pin.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ports/stm32f4/common-hal/microcontroller/Pin.c b/ports/stm32f4/common-hal/microcontroller/Pin.c
index 3a2dd01c5..e9693e18c 100644
--- a/ports/stm32f4/common-hal/microcontroller/Pin.c
+++ b/ports/stm32f4/common-hal/microcontroller/Pin.c
@@ -54,7 +54,7 @@ void reset_all_pins(void) {
// Mark pin as free and return it to a quiescent state.
void reset_pin_number(uint8_t pin_port, uint8_t pin_number) {
- if (pin_port == 0x00) {
+ if (pin_port == 0x0F) {
return;
}