kopia lustrzana https://github.com/pimoroni/pimoroni-pico
46 wiersze
1.4 KiB
C++
46 wiersze
1.4 KiB
C++
#include "hardware/gpio.h"
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#include "wakeup.config.hpp"
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extern uint32_t runtime_wakeup_gpio_state;
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namespace {
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struct Wakeup {
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public:
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Wakeup() {
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// Assert wakeup pins (indicator LEDs, VSYS hold etc)
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//gpio_init_mask(WAKEUP_PIN_MASK);
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//gpio_set_dir_masked(WAKEUP_PIN_MASK, WAKEUP_PIN_DIR);
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//gpio_put_masked(WAKEUP_PIN_MASK, WAKEUP_PIN_VALUE);
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#if WAKEUP_HAS_RTC==1
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// Set up RTC I2C pins and send reset command
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i2c_init(WAKEUP_RTC_I2C_INST, 100000);
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gpio_init(WAKEUP_RTC_SDA);
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gpio_init(WAKEUP_RTC_SCL);
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gpio_set_function(WAKEUP_RTC_SDA, GPIO_FUNC_I2C); gpio_pull_up(WAKEUP_RTC_SDA);
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gpio_set_function(WAKEUP_RTC_SCL, GPIO_FUNC_I2C); gpio_pull_up(WAKEUP_RTC_SCL);
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// Turn off CLOCK_OUT by writing 0b111 to CONTROL_2 (0x01) register
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uint8_t data[] = {0x01, 0b111};
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i2c_write_blocking(WAKEUP_RTC_I2C_INST, WAKEUP_RTC_I2C_ADDR, data, 2, false);
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i2c_deinit(WAKEUP_RTC_I2C_INST);
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// Cleanup
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gpio_init(WAKEUP_RTC_SDA);
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gpio_init(WAKEUP_RTC_SCL);
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#endif
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}
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};
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Wakeup wakeup __attribute__ ((init_priority (101)));
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};
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extern "C" {
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#include "wakeup.h"
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mp_obj_t Wakeup_get_gpio_state() {
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return mp_obj_new_int(runtime_wakeup_gpio_state);
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}
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} |