-#include <stdio.h>
#include "app.h"
#include "watch.h"
#include "watch_private.h"
#include "usb.h"
#include "tusb.h"
#include "watch_usb_cdc.h"
+#include "tcc.h"
+
+uint8_t ticks = 0;
+bool beep = false;
+
+void cb_tick(void);
+void cb_mode_btn_interrupt(void);
+void cb_light_btn_interrupt(void);
+void cb_alarm_btn_extwake(void);
void yield(void) {
tud_task();
}
void app_init(void) {
- // perform watch initialization first!
+ // initialize the watch hardware.
_watch_init();
// check if we are plugged into USB power.
}
void app_setup(void) {
- watch_enable_adc();
+ watch_enable_leds();
+ watch_enable_external_interrupts();
+
+ HAL_GPIO_BTN_LIGHT_in();
+ HAL_GPIO_BTN_LIGHT_pulldown();
+ HAL_GPIO_BTN_LIGHT_pmuxen(HAL_GPIO_PMUX_EIC);
+ HAL_GPIO_BTN_MODE_in();
+ HAL_GPIO_BTN_MODE_pulldown();
+ HAL_GPIO_BTN_MODE_pmuxen(HAL_GPIO_PMUX_EIC);
+
+ // Simple test sketch exercises RTC and EIC, plus LEDs, screen and buzzer.
+ // Periodic callback increments the tick counter.
+ watch_rtc_register_periodic_callback(cb_tick, 1);
+ // Light button turns on the LED.
+ watch_register_interrupt_callback(HAL_GPIO_BTN_LIGHT_pin(), cb_light_btn_interrupt, INTERRUPT_TRIGGER_RISING);
+ // Mode button beeps the piezo.
+ watch_register_interrupt_callback(HAL_GPIO_BTN_MODE_pin(), cb_mode_btn_interrupt, INTERRUPT_TRIGGER_RISING);
+ // Alarm buttton resets the tick counter.
+ watch_register_extwake_callback(HAL_GPIO_BTN_ALARM_pin(), cb_alarm_btn_extwake, true);
+
watch_enable_display();
+ watch_display_top_left("WA");
+ watch_display_top_right(" 0");
+ watch_display_main_line(" test ");
}
bool app_loop(void) {
- uint16_t vcc = watch_get_vcc_voltage();
- char buf[7];
- snprintf(buf, 7, "%6d", vcc);
- watch_display_main_line(buf);
- printf("VCC: %d\n", vcc);
-
if (usb_is_enabled()) {
yield();
}
- return false;
+ if (beep) {
+ watch_buzzer_play_note(BUZZER_NOTE_C8, 100);
+ beep = false;
+ }
+
+ char buf[4];
+ sprintf(buf, "%2d", ticks);
+ printf("ticks: %d\n", ticks);
+ watch_display_top_right(buf);
+
+ if (ticks >= 30) {
+ watch_enter_sleep_mode();
+ }
+
+ return !usb_is_enabled();
+}
+
+void cb_tick(void) {
+ ticks = ticks + 1;
+ watch_set_led_off();
+}
+
+void cb_light_btn_interrupt(void) {
+ watch_set_led_green();
+}
+
+void cb_mode_btn_interrupt(void) {
+ beep = true;
+}
+
+void cb_alarm_btn_extwake(void) {
+ watch_set_led_red();
+ ticks = 0;
}
\ No newline at end of file
* SOFTWARE.
*/
-#include "hpl_systick_config.h"
-
-#include "watch_extint.h"
-
-// this warning only appears when you `make BOARD=OSO-SWAT-A1-02`. it's annoying,
-// but i'd rather have it warn us at build-time than fail silently at run-time.
-// besides, no one but me really has any of these boards anyway.
-#if BTN_ALARM != GPIO(GPIO_PORTA, 2)
-#warning This board revision does not support external wake on BTN_ALARM, so watch_register_extwake_callback will not work with it. Use watch_register_interrupt_callback instead.
-#endif
-
-void watch_register_extwake_callback(uint8_t pin, ext_irq_cb_t callback, bool level) {
- uint32_t pinmux;
- hri_rtc_tampctrl_reg_t config = RTC->MODE2.TAMPCTRL.reg;
-
- switch (pin) {
- case A4:
- a4_callback = callback;
- pinmux = PINMUX_PB00G_RTC_IN0;
- config &= ~(3 << RTC_TAMPCTRL_IN0ACT_Pos);
- config &= ~(1 << RTC_TAMPCTRL_TAMLVL0_Pos);
- config |= 1 << RTC_TAMPCTRL_IN0ACT_Pos;
- if (level) config |= 1 << RTC_TAMPCTRL_TAMLVL0_Pos;
- break;
- case A2:
- a2_callback = callback;
- pinmux = PINMUX_PB02G_RTC_IN1;
- config &= ~(3 << RTC_TAMPCTRL_IN1ACT_Pos);
- config &= ~(1 << RTC_TAMPCTRL_TAMLVL1_Pos);
- config |= 1 << RTC_TAMPCTRL_IN1ACT_Pos;
- if (level) config |= 1 << RTC_TAMPCTRL_TAMLVL1_Pos;
- break;
- case BTN_ALARM:
- gpio_set_pin_pull_mode(pin, GPIO_PULL_DOWN);
- btn_alarm_callback = callback;
- pinmux = PINMUX_PA02G_RTC_IN2;
- config &= ~(3 << RTC_TAMPCTRL_IN2ACT_Pos);
- config &= ~(1 << RTC_TAMPCTRL_TAMLVL2_Pos);
- config |= 1 << RTC_TAMPCTRL_IN2ACT_Pos;
- if (level) config |= 1 << RTC_TAMPCTRL_TAMLVL2_Pos;
- break;
- default:
- return;
+#include "watch_deepsleep.h"
+#include "app.h"
+#include "watch.h"
+#include "watch_private.h"
+
+void sleep(const uint8_t mode) {
+ PM->SLEEPCFG.bit.SLEEPMODE = mode;
+
+ // wait for the mode set to actually take, per SLEEPCFG note in data sheet:
+ // "A small latency happens between the store instruction and actual writing
+ // of the SLEEPCFG register due to bridges. Software has to make sure the
+ // SLEEPCFG register reads the wanted value before issuing WFI instruction."
+ while(PM->SLEEPCFG.bit.SLEEPMODE != mode);
+
+ __DSB();
+ __WFI();
+}
+
+void watch_register_extwake_callback(uint8_t pin, watch_cb_t callback, bool level) {
+ uint32_t config = RTC->MODE2.TAMPCTRL.reg;
+
+ if (pin == HAL_GPIO_BTN_ALARM_pin()) {
+ HAL_GPIO_BTN_ALARM_in();
+ HAL_GPIO_BTN_ALARM_pulldown();
+ HAL_GPIO_BTN_ALARM_pmuxen(HAL_GPIO_PMUX_RTC);
+ btn_alarm_callback = callback;
+ config &= ~(3 << RTC_TAMPCTRL_IN2ACT_Pos);
+ config &= ~(1 << RTC_TAMPCTRL_TAMLVL2_Pos);
+ config |= 1 << RTC_TAMPCTRL_IN2ACT_Pos;
+ if (level) config |= 1 << RTC_TAMPCTRL_TAMLVL2_Pos;
+ } else if (pin == HAL_GPIO_A2_pin()) {
+ HAL_GPIO_A2_in();
+ HAL_GPIO_A2_pmuxen(HAL_GPIO_PMUX_RTC);
+ a2_callback = callback;
+ config &= ~(3 << RTC_TAMPCTRL_IN1ACT_Pos);
+ config &= ~(1 << RTC_TAMPCTRL_TAMLVL1_Pos);
+ config |= 1 << RTC_TAMPCTRL_IN1ACT_Pos;
+ if (level) config |= 1 << RTC_TAMPCTRL_TAMLVL1_Pos;
+ } else if (pin == HAL_GPIO_A4_pin()) {
+ HAL_GPIO_A4_in();
+ HAL_GPIO_A4_pmuxen(HAL_GPIO_PMUX_RTC);
+ a4_callback = callback;
+ config &= ~(3 << RTC_TAMPCTRL_IN0ACT_Pos);
+ config &= ~(1 << RTC_TAMPCTRL_TAMLVL0_Pos);
+ config |= 1 << RTC_TAMPCTRL_IN0ACT_Pos;
+ if (level) config |= 1 << RTC_TAMPCTRL_TAMLVL0_Pos;
}
- gpio_set_pin_direction(pin, GPIO_DIRECTION_IN);
- gpio_set_pin_function(pin, pinmux);
// disable the RTC
RTC->MODE2.CTRLA.bit.ENABLE = 0;
// update the configuration
RTC->MODE2.TAMPCTRL.reg = config;
+
// re-enable the RTC
RTC->MODE2.CTRLA.bit.ENABLE = 1;
- while (RTC->MODE2.SYNCBUSY.bit.ENABLE); // wait for RTC to be enabled
NVIC_ClearPendingIRQ(RTC_IRQn);
NVIC_EnableIRQ(RTC_IRQn);
}
void watch_disable_extwake_interrupt(uint8_t pin) {
- hri_rtc_tampctrl_reg_t config = hri_rtc_get_TAMPCTRL_reg(RTC, 0xFFFFFFFF);
-
- switch (pin) {
- case A4:
- a4_callback = NULL;
- config &= ~(3 << RTC_TAMPCTRL_IN0ACT_Pos);
- break;
- case A2:
- a2_callback = NULL;
- config &= ~(3 << RTC_TAMPCTRL_IN1ACT_Pos);
- break;
- case BTN_ALARM:
- btn_alarm_callback = NULL;
- config &= ~(3 << RTC_TAMPCTRL_IN2ACT_Pos);
- break;
- default:
- return;
+ uint32_t config = RTC->MODE2.TAMPCTRL.reg;
+
+ if (pin == HAL_GPIO_BTN_ALARM_pin()) {
+ btn_alarm_callback = NULL;
+ config &= ~(3 << RTC_TAMPCTRL_IN2ACT_Pos);
+ } else if (pin == HAL_GPIO_A2_pin()) {
+ a2_callback = NULL;
+ config &= ~(3 << RTC_TAMPCTRL_IN1ACT_Pos);
}
+ else if (pin == HAL_GPIO_A4_pin()) {
+ a4_callback = NULL;
+ config &= ~(3 << RTC_TAMPCTRL_IN0ACT_Pos);
+ }
+
+ // disable the RTC
+ RTC->MODE2.CTRLA.bit.ENABLE = 0;
+ while (RTC->MODE2.SYNCBUSY.bit.ENABLE); // wait for RTC to be disabled
+
+ // update the configuration
+ RTC->MODE2.TAMPCTRL.reg = config;
- if (hri_rtcmode0_get_CTRLA_ENABLE_bit(RTC)) {
- hri_rtcmode0_clear_CTRLA_ENABLE_bit(RTC);
- hri_rtcmode0_wait_for_sync(RTC, RTC_MODE0_SYNCBUSY_ENABLE);
- }
- hri_rtc_write_TAMPCTRL_reg(RTC, config);
- hri_rtcmode0_set_CTRLA_ENABLE_bit(RTC);
+ // re-enable the RTC
+ RTC->MODE2.CTRLA.bit.ENABLE = 1;
}
void watch_store_backup_data(uint32_t data, uint8_t reg) {
// same with RTC/IN[1] and PB02
if (config & RTC_TAMPCTRL_IN1ACT_Msk) portb_pins_to_disable &= 0xFFFFFFFB;
- // port A: always keep PA02 configured as-is; that's our ALARM button.
- gpio_set_port_direction(0, 0xFFFFFFFB, GPIO_DIRECTION_OFF);
+ // port A: that last B is to always keep PA02 configured as-is; that's our ALARM button.
+ PORT->Group[0].DIRCLR.reg = 0xFFFFFFFB;
+ // WRCONFIG can only set half the pins at a time, so we need two writes. This sets pins 0-15.
+ PORT->Group[0].WRCONFIG.reg = PORT_WRCONFIG_WRPINCFG | 0xFFFB;
+ // ...and adding the HWSEL flag configures 16-31.
+ PORT->Group[0].WRCONFIG.reg = PORT_WRCONFIG_HWSEL | PORT_WRCONFIG_WRPINCFG | 0xffff;
+
// port B: disable all pins we didn't save above.
- gpio_set_port_direction(1, portb_pins_to_disable, GPIO_DIRECTION_OFF);
+ PORT->Group[1].DIRCLR.reg = portb_pins_to_disable;
+ PORT->Group[1].WRCONFIG.reg = PORT_WRCONFIG_WRPINCFG | (portb_pins_to_disable & 0xFFFF);
+ PORT->Group[1].WRCONFIG.reg = PORT_WRCONFIG_HWSEL | PORT_WRCONFIG_WRPINCFG | (portb_pins_to_disable >> 16);
}
static void _watch_disable_all_peripherals_except_slcd(void) {
_watch_disable_tcc();
watch_disable_adc();
watch_disable_external_interrupts();
- watch_disable_i2c();
- // TODO: replace this with a proper function when we remove the debug UART
- SERCOM3->USART.CTRLA.reg &= ~SERCOM_USART_CTRLA_ENABLE;
- MCLK->APBCMASK.reg &= ~MCLK_APBCMASK_SERCOM3;
+ /// TODO: Actually disable all these peripherals! #SecondMovement
+ // watch_disable_i2c();
+ // SERCOM3->USART.CTRLA.reg &= ~SERCOM_USART_CTRLA_ENABLE;
+ // MCLK->APBCMASK.reg &= ~MCLK_APBCMASK_SERCOM3;
}
void watch_enter_sleep_mode(void) {
// disable brownout detector interrupt, which could inadvertently wake us up.
SUPC->INTENCLR.bit.BOD33DET = 1;
- // per Microchip datasheet clarification DS80000782,
- // work around silicon erratum 1.8.4 by disabling the SysTick interrupt, which is
- // enabled as part of driver init, before going to sleep.
- SysTick->CTRL = SysTick->CTRL & ~(CONF_SYSTICK_TICKINT << SysTick_CTRL_TICKINT_Pos);
-
// disable all pins
_watch_disable_all_pins_except_rtc();
// enter standby (4); we basically hang out here until an interrupt wakes us.
sleep(4);
- // and we awake! re-enable the brownout detector and SysTick interrupt
+ // and we awake! re-enable the brownout detector
SUPC->INTENSET.bit.BOD33DET = 1;
- SysTick->CTRL = SysTick->CTRL | (CONF_SYSTICK_TICKINT << SysTick_CTRL_TICKINT_Pos);
// call app_setup so the app can re-enable everything we disabled.
app_setup();
-
- // and call app_wake_from_standby (since main won't have a chance to do it)
- app_wake_from_standby();
-}
-
-void watch_enter_deep_sleep_mode(void) {
- // identical to sleep mode except we disable the LCD first.
- slcd_sync_deinit(&SEGMENT_LCD_0);
- hri_mclk_clear_APBCMASK_SLCD_bit(SLCD);
-
- watch_enter_sleep_mode();
}
void watch_enter_backup_mode(void) {
watch_rtc_disable_all_periodic_callbacks();
- _watch_disable_all_peripherals_except_slcd();
- slcd_sync_deinit(&SEGMENT_LCD_0);
- hri_mclk_clear_APBCMASK_SLCD_bit(SLCD);
_watch_disable_all_pins_except_rtc();
// go into backup sleep mode (5). when we exit, the reset controller will take over.
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
-#ifndef _WATCH_DEEPSLEEP_H_INCLUDED
-#define _WATCH_DEEPSLEEP_H_INCLUDED
+
+#pragma once
+
////< @file watch_deepsleep.h
#include "watch.h"
-// These are declared in watch_rtc.c.
-extern ext_irq_cb_t btn_alarm_callback;
-extern ext_irq_cb_t a2_callback;
-extern ext_irq_cb_t a4_callback;
-
/** @addtogroup deepsleep Sleep Control
* @brief This section covers functions related to the various sleep modes available to the watch,
* including Sleep, Deep Sleep, and BACKUP mode.
* but the display remains on and your app's state is retained. You can enter this
* mode by calling `watch_enter_sleep_mode`. It consumes an order of magnitude less
* power than STANDBY mode.
- * - Deep Sleep Mode is identical to sleep mode, but it also turns off the LCD to save
- * a bit more power. You can enter this mode by calling `watch_enter_deep_sleep_mode`.
* - BACKUP mode is the lowest possible power mode on the SAM L22. It turns off all pins
* and peripherals except for the RTC. It also turns off the RAM, obliterating your
* application's state. The only way to wake from this mode is by setting an external
* device from BACKUP mode. You can still use this function to register a BTN_ALARM interrupt
* in normal or deep sleep mode, but to wake from BACKUP, you will need to use pin A2 or A4.
*/
-void watch_register_extwake_callback(uint8_t pin, ext_irq_cb_t callback, bool level);
+void watch_register_extwake_callback(uint8_t pin, watch_cb_t callback, bool level);
/** @brief Unregisters the RTC interrupt on one of the EXTWAKE pins. This will prevent a value change on
* one of these pins from waking the device.
*/
void watch_enter_sleep_mode(void);
-/** @brief enters Deep Sleep Mode by disabling all pins and peripherals except the RTC.
- * @details Short of BACKUP mode, this is the lowest power mode you can enter while retaining your
- * application state (and the ability to wake with the alarm button). Just note that the display
- * will be completely off, so you should document to the user of your application that they will
- * need to press the alarm button to wake the device, or use a sensor board with support for
- * an external wake pin.
- *
- * All notes from watch_enter_sleep_mode apply here, except for power consumption. You can estimate
- * the power consumption of this mode to be on the order of 4µA at room temperature.
- */
-void watch_enter_deep_sleep_mode(void);
-
/** @brief Enters the SAM L22's lowest-power mode, BACKUP.
* @details This function does some housekeeping before entering BACKUP mode. It first disables all pins
* and peripherals except for the RTC, and disables the tick interrupt (since that would wake
*/
void watch_enter_backup_mode(void);
+/**
+ * @brief Puts the device to sleep in the specified mode.
+ * @param mode The sleep mode to enter. This can be one of the following:
+ * * 2 - Idle: CPU, AHBx, and APBx clocks are off.
+ * * 4 - Standby: STANDBY ALL clocks are OFF, unless requested by sleepwalking peripheral.
+ * * 5 - Backup: Only Backup domain is powered on.
+ * * 6 - Off: All clocks and power domains are OFF until next system reset.
+ */
+void sleep(const uint8_t mode);
+
/// @}
-#endif
projects / sensor-watch.git / commitdiff