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big PWM refactor: drive both LEDs and buzzer from TCC

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This commit is contained in:
Joey Castillo
2021-08-29 17:40:44 -04:00
parent 7dc4b0fdc6
commit 6353d25d46
8 changed files with 120 additions and 76 deletions
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46
watch-library/watch/watch_led.c
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@@ -22,45 +22,39 @@
* SOFTWARE.
*/
bool PWM_0_enabled = false;
void watch_enable_led(bool pwm) {
if (pwm) {
if (PWM_0_enabled) return;
PWM_0_init();
pwm_set_parameters(&PWM_0, 10000, 0);
pwm_enable(&PWM_0);
PWM_0_enabled = true;
if (!hri_tcc_get_CTRLA_reg(TCC0, TCC_CTRLA_ENABLE)) {
_watch_enable_tcc();
}
} else {
watch_enable_digital_output(RED);
watch_enable_digital_output(GREEN);
watch_set_led_off();
}
watch_set_led_off();
}
void watch_disable_led(bool pwm) {
if (pwm) {
if (!PWM_0_enabled) return;
pwm_disable(&PWM_0);
PWM_0_enabled = false;
_watch_disable_tcc();
} else {
watch_disable_digital_output(RED);
watch_disable_digital_output(GREEN);
}
watch_disable_digital_output(RED);
watch_disable_digital_output(GREEN);
}
void watch_set_led_color(uint16_t red, uint16_t green) {
if (PWM_0_enabled) {
TC3->COUNT16.CC[0].reg = red;
TC3->COUNT16.CC[1].reg = green;
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));
}
}
void watch_set_led_red() {
if (PWM_0_enabled) {
watch_set_led_color(65535, 0);
if (hri_tcc_get_CTRLA_reg(TCC0, TCC_CTRLA_ENABLE)) {
watch_set_led_color(255, 0);
} else {
watch_set_pin_level(RED, true);
watch_set_pin_level(GREEN, false);
@@ -68,8 +62,8 @@ void watch_set_led_red() {
}
void watch_set_led_green() {
if (PWM_0_enabled) {
watch_set_led_color(65535, 0);
if (hri_tcc_get_CTRLA_reg(TCC0, TCC_CTRLA_ENABLE)) {
watch_set_led_color(0, 255);
} else {
watch_set_pin_level(RED, false);
watch_set_pin_level(GREEN, true);
@@ -77,8 +71,8 @@ void watch_set_led_green() {
}
void watch_set_led_yellow() {
if (PWM_0_enabled) {
watch_set_led_color(65535, 65535);
if (hri_tcc_get_CTRLA_reg(TCC0, TCC_CTRLA_ENABLE)) {
watch_set_led_color(255, 255);
} else {
watch_set_pin_level(RED, true);
watch_set_pin_level(GREEN, true);
@@ -86,7 +80,7 @@ void watch_set_led_yellow() {
}
void watch_set_led_off() {
if (PWM_0_enabled) {
if (hri_tcc_get_CTRLA_reg(TCC0, TCC_CTRLA_ENABLE)) {
watch_set_led_color(0, 0);
} else {
watch_set_pin_level(RED, false);