localhorst/lezyne-rear-light-firmware
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base: localhorst:08f348d8fe7069a6059b95b1c0a6095b14344d1dd2ab545890dfe2ee7d85e9c6
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localhorst:main
localhorst:1.0.0
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compare: localhorst:ef86085343997c1cd3e8b101ffe89e01d63d5d73e79e800bf1adf609182689c0
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localhorst:main
localhorst:1.0.0

2 Commits
08f348d8fe ... ef86085343

Author SHA256 Message Date
localhorst
ef86085343 switch to PA0 as BTN 2025-09-06 00:52:34 +02:00
localhorst
3c15aa5eac treat warnings as errors 2025-09-06 00:52:22 +02:00
2 changed files with 12 additions and 11 deletions
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4
CMakeLists.txt
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@ -12,8 +12,8 @@ set(CMAKE_SYSTEM_NAME Generic)
set(CMAKE_C_COMPILER avr-gcc) set(CMAKE_C_COMPILER avr-gcc)
set(OBJCOPY avr-objcopy) set(OBJCOPY avr-objcopy)
# Compiler flags # Compiler flags: optimize, warnings, treat warnings as errors
set(CMAKE_C_FLAGS "-mmcu=${MCU} -DF_CPU=${F_CPU} -Os -Wall") set(CMAKE_C_FLAGS "-mmcu=${MCU} -DF_CPU=${F_CPU} -Os -Wall -Werror")
# Sources # Sources
add_executable(main.elf main.c) add_executable(main.elf main.c)

11
main.c
View File

@ -12,10 +12,11 @@
/** @defgroup LED_Masks LED bitmasks for PORTA /** @defgroup LED_Masks LED bitmasks for PORTA
* @{ * @{
*/ */
#define BUTTON_PIN_MASK 0x01 // PA0
#define PA1_SET_MASK 0x02 ///< LED 1–2 #define PA1_SET_MASK 0x02 ///< LED 1–2
#define PA2_SET_MASK 0x04 ///< LED 3–6 #define PA2_SET_MASK 0x04 ///< LED 3–6
#define PA3_SET_MASK 0x08 ///< LED 7–8 #define PA3_SET_MASK 0x08 ///< LED 7–8
#define PA6_SET_MASK 0x40 ///< Switch input (was green LED pin) TODO: Switch to PA0 #define PA6_SET_MASK 0x40 ///< Green LED pin
#define PA7_SET_MASK 0x80 ///< Red LED #define PA7_SET_MASK 0x80 ///< Red LED
/** @} */ /** @} */
@ -50,9 +51,9 @@ int main(void)
/*PA6_SET_MASK |*/ // PA6 now input (switch) /*PA6_SET_MASK |*/ // PA6 now input (switch)
PA7_SET_MASK); PA7_SET_MASK);
// Configure PA6 as input with pull-up TODO: Switch to PA0 // Configure PA0 as input with pull-up
VPORTA.DIR &= ~PA6_SET_MASK; // Input VPORTA.DIR &= ~BUTTON_PIN_MASK; // Input
PORTA.PIN6CTRL = PORT_PULLUPEN_bm; // Pull-up enabled PORTA.PIN0CTRL = PORT_PULLUPEN_bm; // Pull-up enabled
// --- ensure all LEDs off at startup --- // --- ensure all LEDs off at startup ---
leds_off(); leds_off();
@ -128,7 +129,7 @@ static void handleSwitch(void)
static uint16_t pressTicks = 0; ///< press duration counter static uint16_t pressTicks = 0; ///< press duration counter
static bool prevPressed = false; ///< previous switch state 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) if (pressed)
{ {