alex/stm32-falling-sand
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix gpio_set_mode masking

Browse Source
This commit is contained in:
Alexander Heldt
2025-01-01 12:19:50 +01:00
parent f7454eb073
commit 725bd7d3e5
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/gpio.c
View File

@@ -6,8 +6,8 @@
void gpio_set_mode(uint16_t pin, GPIO_MODE mode) {
struct gpio *gpio = GPIO(PINPORT(pin)); // GPIO port address
int pn = PINNUM(pin); // Pin number
gpio->MODER &= ~(0x0011 << (pn * 2)); // Clear existing setting. Each pin uses 2 bits
gpio->MODER |= (mode & 0b011) << (pn * 2); // Set new mode. Each pin uses 2 bits
gpio->MODER &= ~(0b11 << (pn * 2)); // Clear existing setting. Each pin uses 2 bits
gpio->MODER |= (mode & 0b11) << (pn * 2); // Set new mode. Each pin uses 2 bits
}
void gpio_write(uint16_t pin, bool val) {