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handle watch variant with red/blue LED

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This commit is contained in:
Joey Castillo 2021-08-31 20:28:36 -04:00
parent a232999e93
commit 71e411d860
4 changed files with 34 additions and 10 deletions
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4
make.mk
View file

@ -111,3 +111,7 @@ SRCS += \
DEFINES += \
-D__SAML22J18A__ \
-DDONT_USE_CMSIS_INIT
ifeq ($(LED), BLUE)
CFLAGS += -DWATCH_SWAP_LED_PINS
endif

11
watch-library/hw/atmel_start_pins.h
View file

@ -39,8 +39,14 @@
#define SEG19 GPIO(GPIO_PORTA, 17)
#define SEG20 GPIO(GPIO_PORTA, 18)
#define SEG21 GPIO(GPIO_PORTA, 19)
#define RED GPIO(GPIO_PORTA, 20)
#define GREEN GPIO(GPIO_PORTA, 21)
#ifdef WATCH_SWAP_LED_PINS
#define RED GPIO(GPIO_PORTA, 21)
#define GREEN GPIO(GPIO_PORTA, 20)
#else
#define RED GPIO(GPIO_PORTA, 20)
#define GREEN GPIO(GPIO_PORTA, 21)
#endif
#define BTN_ALARM GPIO(GPIO_PORTA, 2)
#define BTN_LIGHT GPIO(GPIO_PORTA, 22)
#define BTN_MODE GPIO(GPIO_PORTA, 23)
#define BUZZER GPIO(GPIO_PORTA, 27)
@ -51,7 +57,6 @@
#define A4 GPIO(GPIO_PORTB, 0)
#define D0 GPIO(GPIO_PORTB, 3)
#define D1 GPIO(GPIO_PORTB, 0)
#define BTN_ALARM GPIO(GPIO_PORTA, 2)
#define COM0 GPIO(GPIO_PORTB, 6)
#define COM1 GPIO(GPIO_PORTB, 7)
#define COM2 GPIO(GPIO_PORTB, 8)

12
watch-library/watch/watch_led.c
View file

@ -22,6 +22,14 @@
* SOFTWARE.
*/
#ifdef WATCH_SWAP_LED_PINS
#define WATCH_RED_CHANNEL 3
#define WATCH_GREEN_CHANNEL 2
#else
#define WATCH_RED_CHANNEL 2
#define WATCH_GREEN_CHANNEL 3
#endif
void watch_enable_leds() {
if (!hri_tcc_get_CTRLA_reg(TCC0, TCC_CTRLA_ENABLE)) {
_watch_enable_tcc();
@ -45,8 +53,8 @@ void watch_disable_led(bool unused) {
void watch_set_led_color(uint8_t red, uint8_t green) {
if (hri_tcc_get_CTRLA_reg(TCC0, TCC_CTRLA_ENABLE)) {
uint32_t period = hri_tcc_get_PER_reg(TCC0, TCC_PER_MASK);
hri_tcc_write_CCBUF_reg(TCC0, 2, ((period * red * 1000ull) / 255000ull));
hri_tcc_write_CCBUF_reg(TCC0, 3, ((period * green * 1000ull) / 255000ull));
hri_tcc_write_CCBUF_reg(TCC0, WATCH_RED_CHANNEL, ((period * red * 1000ull) / 255000ull));
hri_tcc_write_CCBUF_reg(TCC0, WATCH_GREEN_CHANNEL, ((period * green * 1000ull) / 255000ull));
}
}

17
watch-library/watch/watch_led.h
View file

@ -29,6 +29,11 @@
* hungry. The green LED, at full power, consumes more power than the whole chip in active mode,
* and the red LED consumes about twelve times as much power! The LED's should thus be used only
* sparingly in order to preserve battery life.
* @note Some watches use a red/blue LED instead of a red/green LED. You will be able to determine this
* easily when you double tap the reset button: if the pulsing bootloader LED is red, you have a
* red/green edition; if it is blue, you have a red/blue edition. For red/blue watches, build your
* project with the command `make LED=BLUE`, and the watch library will automatically swap the pins
* so that watch_set_led_red sets the red LED, and watch_set_led_green sets the blue one.
*/
/// @{
/** @brief Enables the bi-color LED.
@ -47,7 +52,7 @@ void watch_disable_leds();
/** @brief Sets the LED to a custom color by modulating each output's duty cycle.
* @param red The red value from 0-255.
* @param green The green value from 0-255.
* @param green The green value from 0-255. If your watch has a red/blue LED, this will be the blue value.
* @note If you are displaying a custom color, you will need to prevent your app from going to sleep
* while the LED is on; otherwise, the color will not display correctly. You can do this by
* returning false in your app_loop method.
@ -55,18 +60,20 @@ void watch_disable_leds();
void watch_set_led_color(uint8_t red, uint8_t green);
/** @brief Sets the red LED to full brightness, and turns the green LED off.
* @note Of the two LED's in the RG bi-color LED, the red LED is the less power-efficient one (~4.5 mA).
* @details Of the two LED's in the RG bi-color LED, the red LED is the less power-efficient one (~4.5 mA).
*/
void watch_set_led_red();
/** @brief Sets the green LED to full brightness, and turns the red LED off.
* @note Of the two LED's in the RG bi-color LED, the green LED is the more power-efficient one (~0.44 mA).
* @details Of the two LED's in the RG bi-color LED, the green LED is the more power-efficient one (~0.44 mA).
* @note If your watch has a red/blue LED, this method will set the LED to blue.
*/
void watch_set_led_green();
/** @brief Sets both red and green LEDs to full brightness.
* @note The total current draw between the two LED's in this mode will be ~5 mA, which is more than the
* watch draws in any other mode. Take care not to drain the battery.
* @details The total current draw between the two LED's in this mode will be ~5 mA, which is more than the
* watch draws in any other mode. Take care not to drain the battery.
* @note If your watch has a red/blue LED, this method will set the LED to pink.
*/
void watch_set_led_yellow();