From 2d1e2e8c76623543817f4c62b26fc300c1fd0d2c Mon Sep 17 00:00:00 2001 From: Joey Castillo Date: Mon, 2 Aug 2021 13:36:53 -0400 Subject: barebones 'hello world' project --- Sensor Watch Starter Project/watch/watch.c | 350 +++++++++++++++++++++++++++++ 1 file changed, 350 insertions(+) create mode 100644 Sensor Watch Starter Project/watch/watch.c (limited to 'Sensor Watch Starter Project/watch/watch.c') diff --git a/Sensor Watch Starter Project/watch/watch.c b/Sensor Watch Starter Project/watch/watch.c new file mode 100644 index 00000000..6ab093bd --- /dev/null +++ b/Sensor Watch Starter Project/watch/watch.c @@ -0,0 +1,350 @@ +/* + * watch.c + * + * Created: 4/25/2021 10:22:10 AM + * Author: joeycastillo + */ + +#include "watch.h" +#include + +void watch_init() { + // use switching regulator + SUPC->VREG.bit.SEL = 1; + while(!SUPC->STATUS.bit.VREGRDY); + + // External wake depends on RTC; calendar is a required module. + CALENDAR_0_init(); + calendar_enable(&CALENDAR_0); + + // TODO: use performance level 0? +// _set_performance_level(0); +// hri_pm_write_PLCFG_PLDIS_bit(PM, true); +} + +static const uint8_t Character_Set[] = +{ + 0b00000000, // + 0b00000000, // ! + 0b00100010, // " + 0b00000000, // # + 0b00000000, // $ + 0b00000000, // % + 0b01000100, // & + 0b00100000, // ' + 0b00000000, // ( + 0b00000000, // ) + 0b00000000, // * + 0b11000000, // + + 0b00010000, // , + 0b01000000, // - + 0b00000100, // . + 0b00010010, // / + 0b00111111, // 0 + 0b00000110, // 1 + 0b01011011, // 2 + 0b01001111, // 3 + 0b01100110, // 4 + 0b01101101, // 5 + 0b01111101, // 6 + 0b00000111, // 7 + 0b01111111, // 8 + 0b01101111, // 9 + 0b00000000, // : + 0b00000000, // ; + 0b01011000, // < + 0b01001000, // = + 0b01001100, // > + 0b01010011, // ? + 0b11111111, // @ + 0b01110111, // A + 0b01111111, // B + 0b00111001, // C + 0b00111111, // D + 0b01111001, // E + 0b01110001, // F + 0b00111101, // G + 0b01110110, // H + 0b10001001, // I + 0b00001110, // J + 0b11101010, // K + 0b00111000, // L + 0b10110111, // M + 0b00110111, // N + 0b00111111, // O + 0b01110011, // P + 0b01100111, // Q + 0b11110111, // R + 0b01101101, // S + 0b10000001, // T + 0b00111110, // U + 0b00111110, // V + 0b10111110, // W + 0b01111110, // X + 0b01101110, // Y + 0b00011011, // Z + 0b00111001, // [ + 0b00100100, // backslash + 0b00001111, // ] + 0b00100110, // ^ + 0b00001000, // _ + 0b00000010, // ` + 0b01011111, // a + 0b01111100, // b + 0b01011000, // c + 0b01011110, // d + 0b01111011, // e + 0b01110001, // f + 0b01101111, // g + 0b01110100, // h + 0b00010000, // i + 0b01000010, // j + 0b11101010, // k + 0b00110000, // l + 0b10110111, // m + 0b01010100, // n + 0b01011100, // o + 0b01110011, // p + 0b01100111, // q + 0b01010000, // r + 0b01101101, // s + 0b01111000, // t + 0b01100010, // u + 0b01100010, // v + 0b10111110, // w + 0b01111110, // x + 0b01101110, // y + 0b00011011, // z + 0b00111001, // { + 0b00110000, // | + 0b00001111, // } + 0b00000001, // ~ +}; + +static const uint64_t Segment_Map[] = { + 0x4e4f0e8e8f8d4d0d, // Position 8 + 0xc8c4c4c8b4b4b0b, // Position 9 + 0xc049c00a49890949, // Position 6 + 0xc048088886874707, // Position 7 + 0xc053921252139352, // Position 0 + 0xc054511415559594, // Position 1 + 0xc057965616179716, // Position 2 + 0xc041804000018a81, // Position 3 + 0xc043420203048382, // Position 4 + 0xc045440506468584, // Position 5 +}; + +static const uint8_t Num_Chars = 10; + +void watch_enable_display() { + SEGMENT_LCD_0_init(); + slcd_sync_enable(&SEGMENT_LCD_0); +} + +void watch_display_pixel(uint8_t com, uint8_t seg) { + slcd_sync_seg_on(&SEGMENT_LCD_0, SLCD_SEGID(com, seg)); +} + +void watch_clear_pixel(uint8_t com, uint8_t seg) { + slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(com, seg)); +} + +void watch_display_character(uint8_t character, uint8_t position) { + uint64_t segmap = Segment_Map[position]; + uint64_t segdata = Character_Set[character - 0x20]; + + for (int i = 0; i < 8; i++) { + uint8_t com = (segmap & 0xFF) >> 6; + if (com > 2) { + // COM3 means no segment exists; skip it. + segmap = segmap >> 8; + segdata = segdata >> 1; + continue; + } + uint8_t seg = segmap & 0x3F; + slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(com, seg)); + if (segdata & 1) slcd_sync_seg_on(&SEGMENT_LCD_0, SLCD_SEGID(com, seg)); + segmap = segmap >> 8; + segdata = segdata >> 1; + } +} + +void watch_display_string(char *string, uint8_t position) { + size_t i = 0; + while(string[i] != 0) { + watch_display_character(string[i], position + i); + i++; + if (i >= Num_Chars) break; + } +} + +void watch_enable_buttons() { + EXTERNAL_IRQ_0_init(); +} + +void watch_register_button_callback(const uint32_t pin, ext_irq_cb_t callback) { + ext_irq_register(pin, callback); +} + +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; + } else { + watch_enable_digital_output(RED); + watch_enable_digital_output(GREEN); + } + 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_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_red() { + if (PWM_0_enabled) { + watch_set_led_color(65535, 0); + } else { + watch_set_pin_level(RED, true); + watch_set_pin_level(GREEN, false); + } +} + +void watch_set_led_green() { + if (PWM_0_enabled) { + watch_set_led_color(65535, 0); + } else { + watch_set_pin_level(RED, false); + watch_set_pin_level(GREEN, true); + } +} + +void watch_set_led_yellow() { + if (PWM_0_enabled) { + watch_set_led_color(65535, 65535); + } else { + watch_set_pin_level(RED, true); + watch_set_pin_level(GREEN, true); + } +} + +void watch_set_led_off() { + if (PWM_0_enabled) { + watch_set_led_color(0, 0); + } else { + watch_set_pin_level(RED, false); + watch_set_pin_level(GREEN, false); + } +} + +void watch_set_date_time(struct calendar_date_time date_time) { + calendar_set_date(&CALENDAR_0, &date_time.date); + calendar_set_time(&CALENDAR_0, &date_time.time); +} + +void watch_get_date_time(struct calendar_date_time *date_time) { + calendar_get_date_time(&CALENDAR_0, date_time); +} + +static ext_irq_cb_t tick_user_callback; + +static void tick_callback(struct calendar_dev *const dev) { + tick_user_callback(); +} + +void watch_enable_tick_callback(ext_irq_cb_t callback) { + tick_user_callback = callback; + // TODO: rename this method to reflect that it now sets the PER7 interrupt. + _tamper_register_callback(&CALENDAR_0.device, &tick_callback); +} + +static bool ADC_0_ENABLED = false; + +void watch_enable_analog(const uint8_t pin) { + if (!ADC_0_ENABLED) ADC_0_init(); + ADC_0_ENABLED = true; + + gpio_set_pin_direction(pin, GPIO_DIRECTION_OFF); + switch (pin) { + case A0: + gpio_set_pin_function(A0, PINMUX_PB04B_ADC_AIN12); + break; + case A1: + gpio_set_pin_function(A1, PINMUX_PB01B_ADC_AIN9); + break; + case A2: + gpio_set_pin_function(A2, PINMUX_PB02B_ADC_AIN10); + break; + default: + return; + } +} + +void watch_enable_digital_input(const uint8_t pin) { + gpio_set_pin_direction(pin, GPIO_DIRECTION_IN); + gpio_set_pin_function(pin, GPIO_PIN_FUNCTION_OFF); +} + +void watch_enable_pull_up(const uint8_t pin) { + gpio_set_pin_pull_mode(pin, GPIO_PULL_UP); +} + +void watch_enable_pull_down(const uint8_t pin) { + gpio_set_pin_pull_mode(pin, GPIO_PULL_DOWN); +} + +bool watch_get_pin_level(const uint8_t pin, const bool level) { + return gpio_get_pin_level(pin); +} + +void watch_enable_digital_output(const uint8_t pin) { + gpio_set_pin_direction(pin, GPIO_DIRECTION_OUT); + gpio_set_pin_function(pin, GPIO_PIN_FUNCTION_OFF); +} + +void watch_disable_digital_output(const uint8_t pin) { + gpio_set_pin_direction(pin, GPIO_DIRECTION_OFF); +} + +void watch_set_pin_level(const uint8_t pin, const bool level) { + gpio_set_pin_level(pin, level); +} + +struct io_descriptor *I2C_0_io; + +void watch_enable_i2c() { + I2C_0_init(); + i2c_m_sync_get_io_descriptor(&I2C_0, &I2C_0_io); + i2c_m_sync_enable(&I2C_0); +} + +void watch_i2c_send(int16_t addr, uint8_t *buf, uint16_t length) { + i2c_m_sync_set_slaveaddr(&I2C_0, addr, I2C_M_SEVEN); + io_write(I2C_0_io, buf, length); +} + +void watch_i2c_receive(int16_t addr, uint8_t *buf, uint16_t length) { + i2c_m_sync_set_slaveaddr(&I2C_0, addr, I2C_M_SEVEN); + io_read(I2C_0_io, buf, length); +} -- cgit v1.2.3