kopia lustrzana https://github.com/pjalocha/esp32-ogn-tracker
437 wiersze
15 KiB
C++
437 wiersze
15 KiB
C++
#include <string.h>
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// #include <sys/select.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/semphr.h"
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#include "freertos/queue.h"
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#include "driver/gpio.h"
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#include "driver/uart.h"
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#include "driver/spi_master.h"
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#include "driver/i2c.h"
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#include "esp_system.h"
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#include "esp_freertos_hooks.h"
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#include "nvs.h"
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#include "nvs_flash.h"
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#include "esp_spiffs.h"
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#include "esp_bt.h"
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#include "esp_bt_main.h"
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#include "esp_gap_bt_api.h"
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#include "esp_bt_device.h"
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#include "esp_spp_api.h"
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#include "hal.h"
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#ifdef WITH_OLED
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#include "ssd1306.h"
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#include "font8x8_basic.h"
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#endif
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// ======================================================================================================
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/*
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The HELTEC Automation board WiFi LoRa 32 with sx1276 (RFM95) for 868/915MHz
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Referenced: http://esp32.net/
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Pinout: http://esp32.net/images/Heltec/WIFI-LoRa-32/Heltec_WIFI-LoRa-32_DiagramPinoutFromTop.jpg
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http://esp32.net/images/Heltec/WIFI-LoRa-32/Heltec_WIFI-LoRa-32_DiagramPinoutFromBottom.jpg
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Arduino code: https://robotzero.one/heltec-wifi-lora-32/
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ESP32 API: https://esp-idf.readthedocs.io/en/latest/api-reference/index.html
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UART example: https://github.com/espressif/esp-idf/blob/f4009b94dca9d17b909e1094d6e3d7dbb75d52c0/examples/peripherals/uart_echo
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SPI example: https://github.com/espressif/esp-idf/tree/f4009b94dca9d17b909e1094d6e3d7dbb75d52c0/examples/peripherals/spi_master
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I2C example: https://github.com/espressif/esp-idf/tree/f4009b94dca9d17b909e1094d6e3d7dbb75d52c0/examples/peripherals/i2c
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OLED driver: https://github.com/olikraus/u8g2/tree/master/csrc
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OLED datasheet: https://cdn-shop.adafruit.com/datasheets/SSD1306.pdf
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OLED example: https://github.com/yanbe/ssd1306-esp-idf-i2c
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OLED article: http://robotcantalk.blogspot.co.uk/2015/03/interfacing-arduino-with-ssd1306-driven.html
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SX1276 pins:
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14 = GPIO14 = RST
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5 = GPIO5 = SCK
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18 = GPIO18 = CS = SS
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19 = GPIO19 = MISO
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27 = GPIO27 = MOSI
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26 = GPIO26 = IRQ = DIO0
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OLED type: U8X8_SSD1306_128X64_NONAME_SW_I2C u8x8 (by Arduino)
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OLED pins:
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16 = GPIO16 = RST
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4 = GPIO04 = SDA
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15 = GPIO15 = SCL
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LED pin:
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25 = GPIO25
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Button pin:
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0 = GPIO0
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UART0 pins: taken by console ?
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1 = GPIO1 = TxD CPU->GPS
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3 = GPIO3 = RxD GPS->CPU
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GPS pins:
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22 = GPIO22 = PPS
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23 = GPIO23 = ENA
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UART2 pins:
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16 = GPIO16 = RxD -> taken by OLED ?
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17 = GPIO17 = TxD
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*/
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#define PIN_LED_PCB GPIO_NUM_25 // status LED on the PCB
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#define PIN_RFM_RST GPIO_NUM_14 // Reset
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#define PIN_RFM_IRQ GPIO_NUM_26 // packet done on receive or transmit
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#define PIN_RFM_SS GPIO_NUM_18 // SPI chip-select
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#define PIN_RFM_SCK GPIO_NUM_5 // SPI clock
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#define PIN_RFM_MISO GPIO_NUM_19 // SPI MISO
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#define PIN_RFM_MOSI GPIO_NUM_27 // SPI MOSI
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// wire colours for VK2828U GPS
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#define PIN_GPS_TXD GPIO_NUM_12 // green
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#define PIN_GPS_RXD GPIO_NUM_35 // blue
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#define PIN_GPS_PPS GPIO_NUM_34 // white
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#define PIN_GPS_ENA GPIO_NUM_13 // yellow -> well, I had a problem here, thus I tied the enable wire to 3.3V for the time being.
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#define CONS_UART UART_NUM_0 // UART0 for the console (the system does this for us)
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#define GPS_UART UART_NUM_1 // UART1 for GPS data read and dialog
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#define I2C_BUS I2C_NUM_1 // use bus #1 to talk to OLED and Baro sensor
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#define I2C_SPEED 1000000 // 1MHz clock on I2C
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#define PIN_I2C_SCL GPIO_NUM_15 // SCL pin
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#define PIN_I2C_SDA GPIO_NUM_4 // SDA pin
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#define OLED_I2C_ADDR 0x3C // I2C address of the OLED display
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#define PIN_OLED_RST GPIO_NUM_16 // OLED RESET pin
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// ======================================================================================================
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// 48-bit unique ID of the chip
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uint64_t getUniqueID(void)
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{ uint64_t ID=0; esp_err_t ret=esp_efuse_mac_get_default((uint8_t *)&ID); return ID; }
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// ======================================================================================================
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FlashParameters Parameters;
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//--------------------------------------------------------------------------------------------------------
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// STatus LED
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void LED_PCB_On (void) { gpio_set_level(PIN_LED_PCB, 1); } // LED is on GPIO25
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void LED_PCB_Off (void) { gpio_set_level(PIN_LED_PCB, 0); }
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//--------------------------------------------------------------------------------------------------------
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// Console UART
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SemaphoreHandle_t CONS_Mutex;
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// int CONS_UART_Read (uint8_t &Byte) { return uart_read_bytes (CONS_UART, &Byte, 1, 0); } // non-blocking
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// void CONS_UART_Write (char Byte) { uart_write_bytes (CONS_UART, &Byte, 1); } // blocking ?
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void CONS_UART_Write (char Byte) { putchar(Byte); }
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int CONS_UART_Read (uint8_t &Byte) { int Ret=getchar(); if(Ret>=0) { Byte=Ret; return 1; } else return Ret; }
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// int CONS_UART_Free (void) { return UART2_Free(); }
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// int CONS_UART_Full (void) { return UART2_Full(); }
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//--------------------------------------------------------------------------------------------------------
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// GPS UART
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// int GPS_UART_Full (void) { size_t Full=0; uart_get_buffered_data_len(GPS_UART, &Full); return Full; }
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int GPS_UART_Read (uint8_t &Byte) { return uart_read_bytes (GPS_UART, &Byte, 1, 0); } // should be buffered and non-blocking
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void GPS_UART_Write (char Byte) { uart_write_bytes (GPS_UART, &Byte, 1); } // should be buffered and blocking
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void GPS_UART_SetBaudrate(int BaudRate) { uart_set_baudrate(GPS_UART, BaudRate); }
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#ifdef WITH_GPS_ENABLE
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void GPS_DISABLE(void) { gpio_set_level(PIN_GPS_ENA, 0); }
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void GPS_ENABLE (void) { gpio_set_level(PIN_GPS_ENA, 1); }
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#endif
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bool GPS_PPS_isOn(void) { return gpio_get_level(PIN_GPS_PPS); }
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//--------------------------------------------------------------------------------------------------------
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// RF chip
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inline void RFM_RESET_High(void) { gpio_set_level(PIN_RFM_RST, 1); }
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inline void RFM_RESET_Low (void) { gpio_set_level(PIN_RFM_RST, 0); }
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void RFM_RESET(uint8_t On)
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{ if(On) RFM_RESET_Low();
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else RFM_RESET_High(); }
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bool RFM_DIO0_isOn(void) { return gpio_get_level(PIN_RFM_IRQ); }
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static spi_device_handle_t RFM_SPI;
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void RFM_TransferBlock(uint8_t *Data, uint8_t Len)
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{ spi_transaction_t Trans;
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memset(&Trans, 0, sizeof(Trans));
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Trans.tx_buffer = Data;
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Trans.rx_buffer = Data;
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Trans.length = 8*Len;
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esp_err_t ret = spi_device_transmit(RFM_SPI, &Trans); }
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//--------------------------------------------------------------------------------------------------------
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// OLED display
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#ifdef WITH_OLED
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void OLED_RESET(bool Level) { gpio_set_level(PIN_OLED_RST, Level); }
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esp_err_t OLED_Init(void)
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{ i2c_cmd_handle_t cmd = i2c_cmd_link_create();
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, (OLED_I2C_ADDR << 1) | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_CMD_STREAM, true);
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i2c_master_write_byte(cmd, OLED_CMD_SET_CHARGE_PUMP, true);
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i2c_master_write_byte(cmd, 0x14, true);
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i2c_master_write_byte(cmd, OLED_CMD_SET_SEGMENT_REMAP, true); // reverse left-right mapping
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i2c_master_write_byte(cmd, OLED_CMD_SET_COM_SCAN_MODE, true); // reverse up-bottom mapping
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i2c_master_write_byte(cmd, OLED_CMD_DISPLAY_ON, true);
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i2c_master_stop(cmd);
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esp_err_t espRc = i2c_master_cmd_begin(I2C_BUS, cmd, 10);
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i2c_cmd_link_delete(cmd);
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return espRc; }
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esp_err_t OLED_SetContrast(uint8_t Contrast)
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{ i2c_cmd_handle_t cmd = i2c_cmd_link_create();
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, (OLED_I2C_ADDR << 1) | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_CMD_STREAM, true);
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i2c_master_write_byte(cmd, OLED_CMD_SET_CONTRAST, true);
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i2c_master_write_byte(cmd, Contrast, true);
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i2c_master_stop(cmd);
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esp_err_t espRc = i2c_master_cmd_begin(I2C_BUS, cmd, 10);
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i2c_cmd_link_delete(cmd);
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return espRc; }
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esp_err_t OLED_PutLine(uint8_t Line, const char *Text)
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{ if(Line>=8) return ESP_OK;
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i2c_cmd_handle_t cmd = i2c_cmd_link_create();
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, (OLED_I2C_ADDR << 1) | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_CMD_STREAM, true);
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i2c_master_write_byte(cmd, 0x00, true);
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i2c_master_write_byte(cmd, 0x10, true);
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i2c_master_write_byte(cmd, 0xB0 | Line, true);
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i2c_master_stop(cmd);
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esp_err_t espRc = i2c_master_cmd_begin(I2C_BUS, cmd, 10);
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i2c_cmd_link_delete(cmd);
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if(espRc!=ESP_OK) return espRc;
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for(uint8_t Idx=0; Idx<16; Idx++)
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{ char Char=0;
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if(Text)
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{ Char=Text[Idx];
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if(Char==0) Text=0;
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else Char&=0x7F; }
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cmd = i2c_cmd_link_create();
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, (OLED_I2C_ADDR << 1) | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(cmd, OLED_CONTROL_BYTE_DATA_STREAM, true);
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i2c_master_write(cmd, font8x8_basic_tr[(uint8_t)Char], 8, true);
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i2c_master_stop(cmd);
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espRc = i2c_master_cmd_begin(I2C_BUS, cmd, 10);
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i2c_cmd_link_delete(cmd);
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if(espRc!=ESP_OK) break; }
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return espRc; }
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esp_err_t OLED_Clear(void)
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{ esp_err_t espRc;
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for(uint8_t Line=0; Line<8; Line++)
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{ espRc=OLED_PutLine(Line, 0); if(espRc!=ESP_OK) break; }
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return espRc; }
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#endif
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//--------------------------------------------------------------------------------------------------------
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volatile uint8_t LED_PCB_Counter = 0;
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void LED_PCB_Flash(uint8_t Time) { if(Time>LED_PCB_Counter) LED_PCB_Counter=Time; } // [ms]
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void LED_TimerCheck(uint8_t Ticks)
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{ uint8_t Counter=LED_PCB_Counter;
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if(Counter)
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{ if(Ticks<Counter) Counter-=Ticks;
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else Counter =0;
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if(Counter) LED_PCB_On();
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else LED_PCB_Off();
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LED_PCB_Counter=Counter; }
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}
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/*
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extern "C"
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void vApplicationIdleHook(void) // when RTOS is idle: should call "sleep until an interrupt"
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{ // __WFI(); // wait-for-interrupt
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}
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extern "C"
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void vApplicationTickHook(void) // RTOS timer tick hook
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{ LED_TimerCheck();
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}
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*/
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//--------------------------------------------------------------------------------------------------------
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void IO_Configuration(void)
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{
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CONS_Mutex = xSemaphoreCreateMutex();
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gpio_set_direction(PIN_LED_PCB, GPIO_MODE_OUTPUT); // LED
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LED_PCB_Off();
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gpio_set_direction(PIN_RFM_RST, GPIO_MODE_OUTPUT); // RF chip GPIO pins
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gpio_set_direction(PIN_RFM_IRQ, GPIO_MODE_INPUT);
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RFM_RESET(0);
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spi_bus_config_t BusCfg = // RF chip SPI
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{ mosi_io_num: PIN_RFM_MOSI,
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miso_io_num: PIN_RFM_MISO,
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sclk_io_num: PIN_RFM_SCK,
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quadwp_io_num: -1,
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quadhd_io_num: -1,
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max_transfer_sz: 64
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};
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spi_device_interface_config_t DevCfg =
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{ command_bits: 0,
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address_bits: 0,
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dummy_bits: 0,
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mode: 0,
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duty_cycle_pos: 0,
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cs_ena_pretrans: 0,
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cs_ena_posttrans: 0,
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clock_speed_hz: 4000000,
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spics_io_num: PIN_RFM_SS,
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flags: 0,
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queue_size: 3,
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pre_cb: 0,
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post_cb: 0
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};
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esp_err_t ret=spi_bus_initialize(HSPI_HOST, &BusCfg, 1);
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ret=spi_bus_add_device(HSPI_HOST, &DevCfg, &RFM_SPI);
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gpio_set_direction(PIN_GPS_PPS, GPIO_MODE_INPUT);
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#ifdef WITH_GPS_ENABLE
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gpio_set_direction(PIN_GPS_ENA, GPIO_MODE_OUTPUT); // GPS GPIO
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GPS_ENABLE();
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#endif
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uart_config_t GPS_UART_Config = // GPS UART
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{ baud_rate: 9600,
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data_bits: UART_DATA_8_BITS,
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parity: UART_PARITY_DISABLE,
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stop_bits: UART_STOP_BITS_1,
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flow_ctrl: UART_HW_FLOWCTRL_DISABLE,
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rx_flow_ctrl_thresh: 0,
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use_ref_tick: 0
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};
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uart_param_config (GPS_UART, &GPS_UART_Config);
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uart_set_pin (GPS_UART, PIN_GPS_TXD, PIN_GPS_RXD, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);
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uart_driver_install(GPS_UART, 256, 256, 0, 0, 0);
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gpio_set_direction(PIN_OLED_RST, GPIO_MODE_OUTPUT);
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i2c_config_t I2C_Config = // I2C for OLED and pressue sensor
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{ mode: I2C_MODE_MASTER,
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sda_io_num: PIN_I2C_SDA,
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sda_pullup_en: GPIO_PULLUP_ENABLE,
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scl_io_num: PIN_I2C_SCL,
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scl_pullup_en: GPIO_PULLUP_ENABLE
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} ;
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I2C_Config.master.clk_speed = I2C_SPEED;
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i2c_param_config (I2C_BUS, &I2C_Config);
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i2c_driver_install(I2C_BUS, I2C_Config.mode, 0, 0, 0);
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#ifdef WITH_OLED
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OLED_RESET(0);
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vTaskDelay(10);
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OLED_RESET(1);
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vTaskDelay(10);
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OLED_Init();
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OLED_Clear();
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OLED_SetContrast(128);
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#endif
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// esp_register_freertos_tick_hook(&vApplicationTickHook);
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}
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// ======================================================================================================
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static const esp_spp_mode_t esp_spp_mode = ESP_SPP_MODE_CB;
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static void esp_spp_cb(esp_spp_cb_event_t event, esp_spp_cb_param_t *param)
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{ xSemaphoreTake(CONS_Mutex, portMAX_DELAY);
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Format_String(CONS_UART_Write, "BT_SPP: ");
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Format_Hex(CONS_UART_Write, (uint32_t)event);
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Format_String(CONS_UART_Write, "\n");
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xSemaphoreGive(CONS_Mutex); }
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int BT_SPP_Init(void)
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{ esp_bt_controller_config_t BTconf = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
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esp_err_t Err = esp_bt_controller_init(&BTconf); if(Err!=ESP_OK) return Err;
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Err = esp_bt_controller_enable(ESP_BT_MODE_CLASSIC_BT); if(Err!=ESP_OK) return Err;
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Err = esp_bluedroid_init(); if(Err!=ESP_OK) return Err;
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Err = esp_bluedroid_enable(); if(Err!=ESP_OK) return Err;
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Err = esp_spp_register_callback(esp_spp_cb); if(Err!=ESP_OK) return Err;
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Err = esp_spp_init(esp_spp_mode); if(Err!=ESP_OK) return Err;
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return Err; }
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// ======================================================================================================
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int NVS_Init(void)
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{ esp_err_t Err = nvs_flash_init();
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if (Err == ESP_ERR_NVS_NO_FREE_PAGES)
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{ nvs_flash_erase();
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Err = nvs_flash_init(); }
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if(Parameters.ReadFromNVS()!=ESP_OK)
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{ Parameters.setDefault(getUniqueID());
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Parameters.WriteToNVS(); }
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return Err; }
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// ======================================================================================================
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int SPIFFS_Register(const char *Path, const char *Label, size_t MaxOpenFiles)
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{ esp_vfs_spiffs_conf_t FSconf =
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{ base_path: Path,
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partition_label: Label,
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max_files: MaxOpenFiles,
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format_if_mount_failed: true };
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return esp_vfs_spiffs_register(&FSconf); }
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int SPIFFS_Info(size_t &Total, size_t &Used, const char *Label)
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{ return esp_spiffs_info(Label, &Total, &Used); }
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// ======================================================================================================
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/*
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uint8_t I2C_Read(i2c_port_t Bus, uint8_t Addr, uint8_t Reg, uint8_t *Data, uint8_t Len, uint8_t Wait=10)
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{ i2c_cmd_handle_t Cmd = i2c_cmd_link_create();
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i2c_master_start(Cmd);
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i2c_master_write_byte(Cmd, (Addr<<1) | I2C_MASTER_READ , I2C_MASTER_ACK);
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i2c_master_write_byte(Cmd, Reg , I2C_MASTER_ACK);
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i2c_master_start(Cmd);
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i2c_master_read(Cmd, Data, Len, I2C_MASTER_LAST_NACK);
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i2c_master_stop(Cmd);
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esp_err_t Ret = i2c_master_cmd_begin(Bus, Cmd, Wait);
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i2c_cmd_link_delete(Cmd);
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return Ret; }
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uint8_t I2C_Write(i2c_port_t Bus, uint8_t Addr, uint8_t Reg, uint8_t *Data, uint8_t Len, uint8_t Wait=10)
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{ i2c_cmd_handle_t Cmd = i2c_cmd_link_create();
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i2c_master_start(Cmd);
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i2c_master_write_byte(Cmd, (Addr<<1) | I2C_MASTER_WRITE , I2C_MASTER_ACK);
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i2c_master_write_byte(Cmd, Reg , I2C_MASTER_ACK);
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i2c_master_write(Cmd, Data, Len, I2C_MASTER_NACK);
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i2c_master_stop(Cmd);
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esp_err_t Ret = i2c_master_cmd_begin(Bus, Cmd, Wait);
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i2c_cmd_link_delete(Cmd);
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return Ret; }
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*/
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// ======================================================================================================
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