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@ -1,6 +1,7 @@ |
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#include <stdio.h> |
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#include <string.h> |
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#include <time.h> |
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#include <stdarg.h> |
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#include "pico/stdlib.h" |
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#include "pico/binary_info.h" |
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#include "hardware/flash.h" |
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@ -34,36 +35,88 @@ const uint RelayOnControl = 3; |
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const uint8_t *flash_target_contents = (const uint8_t *) (XIP_BASE + FLASH_TARGET_OFFSET); |
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uint8_t ReadSettingsFromFlash(void) |
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void log_out(const char *fmt, ...) |
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{ |
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char buf[256]; |
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va_list args; |
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if (Status.KissMode == OFF) { |
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va_start(args, fmt); |
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vsnprintf(buf, sizeof buf, fmt, args); |
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va_end( args); |
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printf("%s", buf); |
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} |
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} |
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/*
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* Saves settings in struct AprsSettings to FLASH memory |
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* Struct AprsSettings should be exactly a multiple of FLASH_PAGE_SIZE in size. |
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*
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* Returns: 0 when successfull |
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* 1 when error |
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*/ |
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uint8_t SaveSettingsToFlash(void) |
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{ |
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uint32_t ints = save_and_disable_interrupts(); |
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// First we erase the FLASH sector we need. After that we can store new values.
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// Note that a whole number of sectors must be erased at a time.
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// Sector size is 4kB, so this is way bigger than the 256 bytes PAGE_SIZE for storing the settings.
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// We can therefore store up to 16 blocks of 256 bytes per sector
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log_out("Erasing FLASH region..."); |
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flash_range_erase(FLASH_TARGET_OFFSET, FLASH_SECTOR_SIZE); |
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log_out("done\n"); |
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log_out("Writing settings to FLASH...");
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flash_range_program(FLASH_TARGET_OFFSET, (uint8_t*)&AprsSettings, sizeof(AprsSettings) ); |
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log_out("done\n"); |
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restore_interrupts (ints); |
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return(0); |
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} |
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void ShowSettings(void) |
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{ |
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log_out("LoRa APRS remote switcher with build in KISS TNC.\n");
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log_out(" Firmware version : %s\n",AprsSettings.FirmwareVersion); |
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log_out(" Size of struct : %u.\n\n", sizeof(AprsSettings)); |
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log_out("APRS settings\n"); |
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log_out(" My call : %s\n", AprsSettings.MyCall); |
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log_out(" Server call : %s\n", AprsSettings.ServerCall); |
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log_out(" Destination : %s\n", AprsSettings.Destination); |
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log_out(" Path 1 : %s\n", AprsSettings.Path1); |
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log_out(" Path 2 : %s\n\n", AprsSettings.Path2); |
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log_out("LoRa settings\n"); |
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log_out(" Frequency : %u\n", AprsSettings.loraFrequency);
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log_out(" SpreadingFactor : %i\n", AprsSettings.loraSpreadingFactor);
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log_out(" Preamble : %i\n", AprsSettings.loraPreamble);
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log_out(" CodingRate : %i\n", AprsSettings.loraCodingRate);
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log_out(" TxPower : %i\n", AprsSettings.loraTxPower);
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log_out(" PaSelect : %i\n", AprsSettings.loraPaSelect);
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log_out(" Bandwidth : %u\n", AprsSettings.loraBandwidth);
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} |
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uint8_t ReadSettingsFromFlash(void) |
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{ |
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// If byte zero of flash contains 0x5A we assume the data to be valid, otherwise we fill the flash with default values.
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if (flash_target_contents[0] != 0x5A) |
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{ |
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printf( "No valid data found in FLASH memory.\n" ); |
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log_out( "No valid data found in FLASH memory. Using default values.\n" ); |
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memset(AprsSettings.FillerData, 0, sizeof(AprsSettings.FillerData)); |
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uint32_t ints = save_and_disable_interrupts(); |
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SaveSettingsToFlash(); |
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// First we erase the FLASH sector we need. After that we can store new values.
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// Note that a whole number of sectors must be erased at a time.
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// Sector size is 4kB, so this is way bigger than the needed 256 bytes for storing the settings.
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printf("Erasing FLASH region..."); |
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flash_range_erase(FLASH_TARGET_OFFSET, FLASH_SECTOR_SIZE); |
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printf("done\n"); |
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printf("Writing default values to FLASH...");
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flash_range_program(FLASH_TARGET_OFFSET, (uint8_t*)&AprsSettings, FLASH_PAGE_SIZE); |
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printf("done\n"); |
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restore_interrupts (ints); |
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} else { |
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// Read settings stored in flash memory
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printf("Found valid settings in FLASH memory.\n"); |
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log_out("Found valid settings in FLASH memory.\n"); |
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} |
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memcpy((uint8_t*)&AprsSettings, flash_target_contents, FLASH_PAGE_SIZE); |
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printf("APRS settings:\n"); |
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printf("My call: %s\n", AprsSettings.MyCall); |
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printf("Server call: %s\n", AprsSettings.ServerCall); |
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printf("Firmware: %s\n",AprsSettings.FirmwareVersion); |
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memcpy((uint8_t*)&AprsSettings, flash_target_contents, sizeof(AprsSettings)); |
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ShowSettings(); |
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} |
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void setup(void) |
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@ -107,6 +160,191 @@ void setup(void) |
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startRadio(); |
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} |
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void print_help(void) |
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{ |
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log_out("Unknown command.\n\n"); |
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log_out("kiss\n"); |
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log_out(" Enter KISS mode.\n"); |
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log_out("save\n"); |
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log_out(" Save settings to flash.\n"); |
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log_out("read <flash/ram>\n"); |
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log_out(" Read settings from FLASH or RAM.\n"); |
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log_out("mycall/servercall/destination/path1/path2\n"); |
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log_out(" APRS settings.\n"); |
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log_out("freq/spread/pre/rate/power/pa/band.\n"); |
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log_out(" LoRa settings.\n"); |
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} |
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void ProcessSerialInput(char string[]) |
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{ |
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uint8_t cnt; |
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uint8_t position=0; |
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char command[100]; |
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char parameter[100]; |
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//log_out("You wrote - %s (%u).\n", string, strlen(string));
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// Command cannot be any shorter than 3 characters
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if (strlen(string) > 2) { |
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// Extract command (part before space)
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cnt = 0;
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while( string[position] != 0 ) |
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{ |
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command[cnt++] = string[position]; |
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if ( string[position] == ' ' ) { |
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command[cnt-1] = 0; // terminate command string
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position++; |
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break; |
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} |
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position++; |
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} |
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// Extract parameter (part after space)
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cnt = 0;
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while( string[position] != 0 ) |
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{ |
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parameter[cnt++] = string[position++]; |
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} |
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parameter[cnt] = 0; //terminate string
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//log_out("Command - %s.\n", command);
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//log_out("Parameter - %s.\n", parameter);
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// Read settings
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if (strcmp(command, "read") == 0) { |
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if (strcmp(parameter, "flash") == 0) { |
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ReadSettingsFromFlash(); |
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} |
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else if (strcmp(parameter, "ram") == 0) { |
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ShowSettings(); |
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} |
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} |
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// Save settings to FLASH
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else if (strcmp(command, "save") == 0) |
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SaveSettingsToFlash(); |
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// Enter KISS mode
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else if (strcmp(command, "kiss") == 0) { |
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log_out("Entering KISS mode.\n"); |
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log_out("You can exit KISS mode via KISS command <0xC0 0xFF 0xC0>\n"); |
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Status.KissMode = ON; |
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} |
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// Set mycall (cannot be longer than 9 characters)
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else if (strcmp(command, "mycall") == 0) { |
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if (sizeof(AprsSettings.MyCall) > strlen(parameter)) { |
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position = 0; |
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while( parameter[position] != 0 ) |
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{ |
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AprsSettings.MyCall[position] = parameter[position]; |
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position++; |
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} |
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AprsSettings.MyCall[position] = 0; |
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log_out("MyCall set to %s.\n", AprsSettings.MyCall); |
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} |
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} |
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// Set servercall (cannot be longer than 9 characters)
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else if (strcmp(command, "servercall") == 0) { |
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if (sizeof(AprsSettings.ServerCall) > strlen(parameter)) { |
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position = 0; |
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while( parameter[position] != 0 ) |
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{ |
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AprsSettings.ServerCall[position] = parameter[position]; |
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position++; |
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} |
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AprsSettings.ServerCall[position] = 0; |
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log_out("ServerCall set to %s.\n", AprsSettings.ServerCall); |
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} |
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} |
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// Set path 1 (cannot be longer than 9 characters)
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else if (strcmp(command, "path1") == 0) { |
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// Set path to nothing
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if (parameter[0] == '0') { |
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AprsSettings.Path1[0] = 0; |
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log_out("Path1 cleared.\n"); |
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} |
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else if (sizeof(AprsSettings.Path1) > strlen(parameter)) { |
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position = 0; |
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while( parameter[position] != 0 ) |
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{ |
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AprsSettings.Path1[position] = parameter[position]; |
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position++; |
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} |
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AprsSettings.Path1[position] = 0; |
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log_out("Path1 set to %s.\n", AprsSettings.Path1); |
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} |
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} |
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// Set path 2 (cannot be longer than 9 characters)
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else if (strcmp(command, "path2") == 0) { |
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// Set path to nothing
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if (parameter[0] == '0') { |
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AprsSettings.Path2[0] = 0; |
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log_out("Path2 cleared.\n"); |
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} |
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else if (sizeof(AprsSettings.Path2) > strlen(parameter)) { |
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position = 0; |
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while( parameter[position] != 0 ) |
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{ |
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AprsSettings.Path2[position] = parameter[position]; |
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position++; |
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} |
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AprsSettings.Path2[position] = 0; |
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log_out("Path2 set to %s.\n", AprsSettings.Path2); |
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} |
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} |
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// Set destination (cannot be longer than 9 characters)
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else if (strcmp(command, "dest") == 0) { |
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if (sizeof(AprsSettings.Destination) > strlen(parameter)) { |
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position = 0; |
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while( parameter[position] != 0 ) |
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{ |
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AprsSettings.Destination[position] = parameter[position]; |
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position++; |
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} |
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AprsSettings.Destination[position] = 0; |
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log_out("Destination set to %s.\n", AprsSettings.Destination); |
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} |
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} |
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else { |
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print_help(); |
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} |
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} |
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else |
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{ |
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print_help(); |
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} |
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} |
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void ReadUSBSerial(void) |
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{ |
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static char strg[100]; |
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int chr; |
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static int lp = 0; |
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// Read serial port (USB) - non-blocking!
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chr = getchar_timeout_us(0); |
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while(chr != PICO_ERROR_TIMEOUT) |
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{ |
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log_out("%c", chr); |
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strg[lp++] = chr; |
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if(chr == CR || lp == (sizeof(strg) - 1)) |
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{ |
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strg[lp-1] = 0; //terminate string by overwriting <CR> with NULL
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//log_out("You wrote - %s\n", strg);
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lp = 0; //reset string buffer pointer
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ProcessSerialInput(strg); |
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break; |
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} |
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chr = getchar_timeout_us(0); |
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} |
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} |
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int main() { |
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uint16_t ServerCommand = 0; |
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@ -118,7 +356,7 @@ int main() { |
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int packetSize = LoRa.parsePacket(); |
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if (packetSize) { |
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// received a packet
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printf("Received packet (RSSI = %idBm)\n",LoRa.packetRssi()); |
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log_out("Received packet (RSSI = %idBm)\n",LoRa.packetRssi()); |
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getPacketData(packetSize); |
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@ -129,10 +367,10 @@ int main() { |
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rxBuffer[cnt-3] = rxBuffer[cnt]; |
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} |
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rxBuffer[packetSize-3] = 0; |
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printf("%s\n", rxBuffer); |
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log_out("%s\n", rxBuffer); |
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ServerCommand = decode_packet(); |
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} else { |
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printf("ERROR: No or corrupted APRS frame.\n"); |
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log_out("ERROR: No or corrupted APRS frame.\n"); |
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} |
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} |
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@ -169,6 +407,10 @@ int main() { |
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break; |
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// Send description digital outputs
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case 7 : |
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ComposeAprsFrame(Status.DescriptionString); |
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// Switch off 24V power supply
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case 30 : |
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gpio_put(PowerSupply24VControl, 0); |
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@ -235,6 +477,9 @@ int main() { |
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TransmitRequest = false; |
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} |
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} |
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// Read serial input and process it
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ReadUSBSerial(); |
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}
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return 0; |
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@ -247,29 +492,19 @@ bool startRadio() |
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{ |
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// override the default CS, reset, and IRQ pins (optional)
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// LoRa.setPins(7, 6, 1); // set CS, reset, IRQ pin
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printf("LoRa settings:\n"); |
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printf("loraFrequency = %u\n", loraFrequency);
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printf("loraSpreadingFactor = %i\n", loraSpreadingFactor);
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printf("loraPreamble = %i\n", loraPreamble);
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printf("loraCodingRate = %i\n", loraCodingRate);
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printf("loraTxPower = %i\n", loraTxPower);
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printf("LoRaPaSelect = %i\n", LoRaPaSelect);
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printf("loraBandwidth = %u\n", loraBandwidth);
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printf("Starting LoRa radio"); |
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if (!LoRa.begin(loraFrequency)) { |
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printf(" [ FAILED ]\n"); |
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log_out("Starting LoRa radio"); |
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if (!LoRa.begin(AprsSettings.loraFrequency)) { |
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log_out(" [ FAILED ]\n"); |
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while(1); |
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} |
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else { |
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LoRa.setPreambleLength(loraPreamble); |
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LoRa.setSignalBandwidth(loraBandwidth); |
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LoRa.setTxPower(loraTxPower,LoRaPaSelect); |
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LoRa.setSpreadingFactor(loraSpreadingFactor); |
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LoRa.setCodingRate4(loraCodingRate); |
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LoRa.setPreambleLength(AprsSettings.loraPreamble); |
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LoRa.setSignalBandwidth(AprsSettings.loraBandwidth); |
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LoRa.setTxPower(AprsSettings.loraTxPower,AprsSettings.loraPaSelect); |
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LoRa.setSpreadingFactor(AprsSettings.loraSpreadingFactor); |
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LoRa.setCodingRate4(AprsSettings.loraCodingRate); |
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LoRa.enableCrc(); |
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printf(" [ DONE ]\n"); |
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log_out(" [ DONE ]\n"); |
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} |
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} |
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@ -318,13 +553,12 @@ uint16_t decode_packet () |
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if ( rxBuffer[position] == '>' && position < 10 ) { |
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aprs_source_address[cnt-1] = 0; |
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valid_apsr_data = true; |
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position++; |
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break; |
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} |
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position++; |
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} |
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position++; |
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if (valid_apsr_data == true) |
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{ |
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// Extract digi path
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@ -336,6 +570,7 @@ uint16_t decode_packet () |
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if ( rxBuffer[position] == ':' ) { |
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aprs_digi_path[cnt-1] = 0; |
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valid_apsr_data = true; |
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position++; |
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break; |
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} |
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position++; |
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@ -343,8 +578,6 @@ uint16_t decode_packet () |
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} |
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position++; |
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if (valid_apsr_data == true) |
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{ |
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// Extract data field
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@ -372,8 +605,6 @@ uint16_t decode_packet () |
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valid_apsr_data = false; |
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break; |
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} |
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//position++;
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cnt = 0; |
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} |
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position++; |
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@ -424,20 +655,20 @@ uint16_t decode_packet () |
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} |
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printf("Source address: %s\nDigipeaters (%u): %s %s %s %s\nData: %s\n", aprs_source_address, number_of_digipeaters+1, aprs_digis[0], aprs_digis[1], aprs_digis[2], aprs_digis[3], aprs_data_field); |
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log_out("Source address: %s\nDigipeaters (%u): %s %s %s %s\nData: %s\n", aprs_source_address, number_of_digipeaters+1, aprs_digis[0], aprs_digis[1], aprs_digis[2], aprs_digis[3], aprs_data_field); |
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if (aprs_message[0]) |
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{ |
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printf("Message from server: %s (command %u)\n", aprs_message, aprs_server_command); |
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log_out("Message from server: %s (command %u)\n", aprs_message, aprs_server_command); |
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if (aprs_acknowledge_request) { |
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ComposeAprsFrame(aprs_acknowledge_number); |
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printf("Acknowledge request: %s\n", aprs_acknowledge_number); |
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log_out("Acknowledge request: %s\n", aprs_acknowledge_number); |
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} |
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} |
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}
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else |
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printf("Error decoding APRS frame."); |
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log_out("Error decoding APRS frame."); |
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return (aprs_server_command); |
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} |
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@ -570,7 +801,7 @@ void ComposeAprsFrame(uint8_t payload[]) |
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// Set variable to indicate a send request
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TransmitRequest = true;
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printf("%s\n", txBuffer); |
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log_out("%s\n", txBuffer); |
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} |
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void transmit() { |
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marcel
2 years ago