localhorst/lezyne-rear-light-firmware
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switch to PA0 as BTN

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This commit is contained in:
Hendrik Schutter
2025-09-06 00:52:34 +02:00
parent 3c15aa5eac
commit ef86085343
1 changed files with 10 additions and 9 deletions
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19
main.c
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@ -12,11 +12,12 @@
/** @defgroup LED_Masks LED bitmasks for PORTA
* @{
*/
#define PA1_SET_MASK 0x02 ///< LED 1–2
#define PA2_SET_MASK 0x04 ///< LED 3–6
#define PA3_SET_MASK 0x08 ///< LED 7–8
#define PA6_SET_MASK 0x40 ///< Switch input (was green LED pin) TODO: Switch to PA0
#define PA7_SET_MASK 0x80 ///< Red LED
#define BUTTON_PIN_MASK 0x01 // PA0
#define PA1_SET_MASK 0x02 ///< LED 1–2
#define PA2_SET_MASK 0x04 ///< LED 3–6
#define PA3_SET_MASK 0x08 ///< LED 7–8
#define PA6_SET_MASK 0x40 ///< Green LED pin
#define PA7_SET_MASK 0x80 ///< Red LED
/** @} */
#define MAIN_LOOP_SLEEP 10U // Main loop delay in ms (system tick)
@ -50,9 +51,9 @@ int main(void)
/*PA6_SET_MASK |*/ // PA6 now input (switch)
PA7_SET_MASK);
// Configure PA6 as input with pull-up TODO: Switch to PA0
VPORTA.DIR &= ~PA6_SET_MASK; // Input
PORTA.PIN6CTRL = PORT_PULLUPEN_bm; // Pull-up enabled
// Configure PA0 as input with pull-up
VPORTA.DIR &= ~BUTTON_PIN_MASK; // Input
PORTA.PIN0CTRL = PORT_PULLUPEN_bm; // Pull-up enabled
// --- ensure all LEDs off at startup ---
leds_off();
@ -128,7 +129,7 @@ static void handleSwitch(void)
static uint16_t pressTicks = 0; ///< press duration counter
static bool prevPressed = false; ///< previous switch state
bool pressed = !(VPORTA.IN & PA6_SET_MASK); // active-low
bool pressed = !(VPORTA.IN & BUTTON_PIN_MASK); // active-low
if (pressed)
{