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-rw-r--r--src/rp2040/gpio.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/rp2040/gpio.c b/src/rp2040/gpio.c
index bac67d23..98e07789 100644
--- a/src/rp2040/gpio.c
+++ b/src/rp2040/gpio.c
@@ -48,7 +48,7 @@ mask_to_pin(uint32_t mask)
struct gpio_out
gpio_out_setup(uint8_t pin, uint8_t val)
{
- if (pin > 30)
+ if (pin >= 30)
goto fail;
struct gpio_out g = { .bit=1<<pin };
gpio_out_reset(g, val);
@@ -93,7 +93,7 @@ gpio_out_write(struct gpio_out g, uint8_t val)
struct gpio_in
gpio_in_setup(uint8_t pin, int8_t pull_up)
{
- if (pin > 30)
+ if (pin >= 30)
goto fail;
struct gpio_in g = { .bit=1<<pin };
gpio_in_reset(g, pull_up);