71 lines
No EOL
1.5 KiB
C++
71 lines
No EOL
1.5 KiB
C++
//
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// Created by jedi on 25.06.21.
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//
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#include "lux.h"
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#include <stdio.h>
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#include <string.h>
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#include <FreeRTOS.h>
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#include <task.h>
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#include <esp/spi.h>
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const int signal_led_pin = 2;
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const int cs0 = 15;
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const int nint_pin = 4;
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const int init_pin = 5;
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extern "C" void signal_led(bool state) {
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gpio_write(signal_led_pin, !state);
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}
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void int_to_hex(uint8_t i, char buf[2]) {
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uint8_t hex_charset[] = "0123456789ABCDEF";
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buf[0] = hex_charset[i >> 4];
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buf[1] = hex_charset[i & 0x0F];
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}
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const gpio_inttype_t int_type = GPIO_INTTYPE_EDGE_NEG;
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void gpio_intr_handler(uint8_t gpio_num)
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{
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uint8_t buf[2];
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spi_read(1, 0x0000, buf, 2, SPI_8BIT);
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char hex[5] = {0};
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int_to_hex(buf[0], hex);
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int_to_hex(buf[1], hex + 2);
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hex[4] = '\0';
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printf("lux_task output: %s\n", hex);
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}
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extern "C" void lux_task(void *pvParameters) {
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gpio_enable(signal_led_pin, GPIO_OUTPUT);
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gpio_enable(cs0, GPIO_OUTPUT);
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gpio_enable(nint_pin, GPIO_INPUT);
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gpio_enable(init_pin, GPIO_OUTPUT);
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spi_init(1, SPI_MODE0, SPI_FREQ_DIV_1M, 1, SPI_BIG_ENDIAN, 1);
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gpio_set_interrupt(nint_pin, int_type, gpio_intr_handler);
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uint8_t charset[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
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uint8_t cnt = 0;
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while(1) {
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uint8_t out[2];
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out[1] = 0x0F;
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out[0] = charset[cnt++];
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spi_transfer_16(1, *(uint16_t*)out);
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vTaskDelay(2000/portTICK_PERIOD_MS);
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cnt %= sizeof(charset);
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}
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vTaskDelete(nullptr);
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} |