![](/media/cache/profiles/profile_pic_for_github_less_than_1MB.jpg.50x50_q85.jpg)
got this sample program for 2+ sx1276 modules to communicate in a ping pong fashion. This program has been tested and verified to run with 915MHz Hope RFM95 modules running with MAX32620FTHR and MAX32630FTHR micro controllers.
Dependencies: BMI160 BufferedSerial SX1276GenericLib USBDeviceHT max32630fthr
Fork of STM32L0_LoRa by
utils.cpp@19:9f035b9e65ec, 2018-06-01 (annotated)
- Committer:
- dev_alexander
- Date:
- Fri Jun 01 22:07:08 2018 +0000
- Revision:
- 19:9f035b9e65ec
- Parent:
- 17:98f2528e8399
got this sample program for 2+ sx1276 modules to communicate in a ping pong fashion. This program has been tested and verified to run with 915MHz Hope RFM95 modules running with MAX32620FTHR and MAX32630FTHR micro controllers.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Helmut64 | 17:98f2528e8399 | 1 | /* |
Helmut64 | 17:98f2528e8399 | 2 | * Copyright (c) 2018 Helmut Tschemernjak |
Helmut64 | 17:98f2528e8399 | 3 | * 30826 Garbsen (Hannover) Germany |
Helmut64 | 17:98f2528e8399 | 4 | */ |
Helmut64 | 17:98f2528e8399 | 5 | #include "main.h" |
Helmut64 | 17:98f2528e8399 | 6 | |
dev_alexander | 19:9f035b9e65ec | 7 | #define BAUD_RATE 115200 |
dev_alexander | 19:9f035b9e65ec | 8 | |
dev_alexander | 19:9f035b9e65ec | 9 | |
Helmut64 | 17:98f2528e8399 | 10 | time_t cvt_date(char const *date, char const *time); |
Helmut64 | 17:98f2528e8399 | 11 | |
dev_alexander | 19:9f035b9e65ec | 12 | |
Helmut64 | 17:98f2528e8399 | 13 | BufferedSerial *ser; |
Helmut64 | 17:98f2528e8399 | 14 | #ifdef FEATURE_USBSERIAL |
Helmut64 | 17:98f2528e8399 | 15 | USBSerialBuffered *usb; |
Helmut64 | 17:98f2528e8399 | 16 | #endif |
Helmut64 | 17:98f2528e8399 | 17 | bool _useDprintf; |
Helmut64 | 17:98f2528e8399 | 18 | |
Helmut64 | 17:98f2528e8399 | 19 | void InitSerial(int timeout, DigitalOut *led) |
Helmut64 | 17:98f2528e8399 | 20 | { |
Helmut64 | 17:98f2528e8399 | 21 | _useDprintf = true; |
Helmut64 | 17:98f2528e8399 | 22 | bool uartActive; |
Helmut64 | 17:98f2528e8399 | 23 | { |
Helmut64 | 17:98f2528e8399 | 24 | { |
Helmut64 | 17:98f2528e8399 | 25 | // need to turn rx low to avoid floating signal |
Helmut64 | 17:98f2528e8399 | 26 | DigitalOut rx(USBRX); |
Helmut64 | 17:98f2528e8399 | 27 | rx = 0; |
Helmut64 | 17:98f2528e8399 | 28 | } |
Helmut64 | 17:98f2528e8399 | 29 | DigitalIn uartRX(USBRX); |
Helmut64 | 17:98f2528e8399 | 30 | uartActive = uartRX.read(); |
Helmut64 | 17:98f2528e8399 | 31 | } |
Helmut64 | 17:98f2528e8399 | 32 | #ifdef FEATURE_USBSERIAL |
Helmut64 | 17:98f2528e8399 | 33 | if (!uartActive) { |
Helmut64 | 17:98f2528e8399 | 34 | usb = new USBSerialBuffered(); |
Helmut64 | 17:98f2528e8399 | 35 | Timer t; |
Helmut64 | 17:98f2528e8399 | 36 | t.start(); |
Helmut64 | 17:98f2528e8399 | 37 | while(!usb->connected()) { |
Helmut64 | 17:98f2528e8399 | 38 | if (led) |
Helmut64 | 17:98f2528e8399 | 39 | *led = !*led; |
Helmut64 | 17:98f2528e8399 | 40 | wait_ms(100); |
Helmut64 | 17:98f2528e8399 | 41 | if (timeout) { |
Helmut64 | 17:98f2528e8399 | 42 | if (t.read_ms() >= timeout) |
Helmut64 | 17:98f2528e8399 | 43 | return; |
Helmut64 | 17:98f2528e8399 | 44 | } |
Helmut64 | 17:98f2528e8399 | 45 | } |
Helmut64 | 17:98f2528e8399 | 46 | return; |
Helmut64 | 17:98f2528e8399 | 47 | } else { |
Helmut64 | 17:98f2528e8399 | 48 | #else |
Helmut64 | 17:98f2528e8399 | 49 | { |
Helmut64 | 17:98f2528e8399 | 50 | #endif |
Helmut64 | 17:98f2528e8399 | 51 | ser = new BufferedSerial(USBTX, USBRX); |
dev_alexander | 19:9f035b9e65ec | 52 | ser->baud(BAUD_RATE); |
Helmut64 | 17:98f2528e8399 | 53 | ser->format(8); |
Helmut64 | 17:98f2528e8399 | 54 | } |
Helmut64 | 17:98f2528e8399 | 55 | time_t t = cvt_date(__DATE__, __TIME__); |
Helmut64 | 17:98f2528e8399 | 56 | if (t > time(NULL)) { |
Helmut64 | 17:98f2528e8399 | 57 | set_time(t); |
Helmut64 | 17:98f2528e8399 | 58 | } |
Helmut64 | 17:98f2528e8399 | 59 | |
Helmut64 | 17:98f2528e8399 | 60 | } |
Helmut64 | 17:98f2528e8399 | 61 | |
Helmut64 | 17:98f2528e8399 | 62 | void printTimeStamp() |
Helmut64 | 17:98f2528e8399 | 63 | { |
Helmut64 | 17:98f2528e8399 | 64 | static LowPowerTimer *timer; |
Helmut64 | 17:98f2528e8399 | 65 | if (!timer) { |
Helmut64 | 17:98f2528e8399 | 66 | timer = new LowPowerTimer(); |
Helmut64 | 17:98f2528e8399 | 67 | timer->start(); |
Helmut64 | 17:98f2528e8399 | 68 | } |
Helmut64 | 17:98f2528e8399 | 69 | time_t seconds = time(NULL); |
Helmut64 | 17:98f2528e8399 | 70 | struct tm *tm = localtime(&seconds); |
Helmut64 | 17:98f2528e8399 | 71 | int usecs = timer->read_us(); |
Helmut64 | 17:98f2528e8399 | 72 | if (usecs < 0) { |
Helmut64 | 17:98f2528e8399 | 73 | usecs = 0; |
Helmut64 | 17:98f2528e8399 | 74 | timer->stop(); |
Helmut64 | 17:98f2528e8399 | 75 | timer->reset(); |
Helmut64 | 17:98f2528e8399 | 76 | timer->start(); |
Helmut64 | 17:98f2528e8399 | 77 | } |
Helmut64 | 17:98f2528e8399 | 78 | int msecs = usecs % 1000000; |
Helmut64 | 17:98f2528e8399 | 79 | |
Helmut64 | 17:98f2528e8399 | 80 | rprintf("%02d:%02d:%02d.%06d ", tm->tm_hour, tm->tm_min, tm->tm_sec, msecs); |
Helmut64 | 17:98f2528e8399 | 81 | } |
Helmut64 | 17:98f2528e8399 | 82 | |
Helmut64 | 17:98f2528e8399 | 83 | void dprintf(const char *format, ...) |
Helmut64 | 17:98f2528e8399 | 84 | { |
Helmut64 | 17:98f2528e8399 | 85 | std::va_list arg; |
Helmut64 | 17:98f2528e8399 | 86 | |
Helmut64 | 17:98f2528e8399 | 87 | va_start(arg, format); |
Helmut64 | 17:98f2528e8399 | 88 | VAprintf(true, true, _useDprintf, format, arg); |
Helmut64 | 17:98f2528e8399 | 89 | va_end(arg); |
Helmut64 | 17:98f2528e8399 | 90 | } |
Helmut64 | 17:98f2528e8399 | 91 | |
Helmut64 | 17:98f2528e8399 | 92 | void rprintf(const char *format, ...) |
Helmut64 | 17:98f2528e8399 | 93 | { |
Helmut64 | 17:98f2528e8399 | 94 | std::va_list arg; |
Helmut64 | 17:98f2528e8399 | 95 | |
Helmut64 | 17:98f2528e8399 | 96 | va_start(arg, format); |
Helmut64 | 17:98f2528e8399 | 97 | VAprintf(false, false, _useDprintf, format, arg); |
Helmut64 | 17:98f2528e8399 | 98 | va_end(arg); |
Helmut64 | 17:98f2528e8399 | 99 | } |
Helmut64 | 17:98f2528e8399 | 100 | |
Helmut64 | 17:98f2528e8399 | 101 | void VAprintf(bool timstamp, bool newline, bool printEnabled, const char *format, va_list arg) |
Helmut64 | 17:98f2528e8399 | 102 | { |
Helmut64 | 17:98f2528e8399 | 103 | if (!printEnabled) |
Helmut64 | 17:98f2528e8399 | 104 | return; |
Helmut64 | 17:98f2528e8399 | 105 | |
Helmut64 | 17:98f2528e8399 | 106 | if (timstamp) |
Helmut64 | 17:98f2528e8399 | 107 | printTimeStamp(); |
Helmut64 | 17:98f2528e8399 | 108 | #ifdef FEATURE_USBSERIAL |
Helmut64 | 17:98f2528e8399 | 109 | if (usb) { |
Helmut64 | 17:98f2528e8399 | 110 | usb->vprintf_irqsafe(format, arg); |
Helmut64 | 17:98f2528e8399 | 111 | if (newline) |
Helmut64 | 17:98f2528e8399 | 112 | usb->printf_irqsafe("\r\n"); |
Helmut64 | 17:98f2528e8399 | 113 | #else |
Helmut64 | 17:98f2528e8399 | 114 | if (0) { |
Helmut64 | 17:98f2528e8399 | 115 | #endif |
Helmut64 | 17:98f2528e8399 | 116 | } else if (ser) { |
Helmut64 | 17:98f2528e8399 | 117 | // serial jas |
Helmut64 | 17:98f2528e8399 | 118 | int r = 0; |
Helmut64 | 17:98f2528e8399 | 119 | r = vsnprintf(NULL, 0, format, arg); |
Helmut64 | 17:98f2528e8399 | 120 | if (r < 82) { |
Helmut64 | 17:98f2528e8399 | 121 | char buffer[82+1]; |
Helmut64 | 17:98f2528e8399 | 122 | |
Helmut64 | 17:98f2528e8399 | 123 | vsnprintf(buffer, sizeof(buffer), format, arg); |
Helmut64 | 17:98f2528e8399 | 124 | r = ser->write(buffer, r); |
Helmut64 | 17:98f2528e8399 | 125 | } else { |
Helmut64 | 17:98f2528e8399 | 126 | char *buffer = new char[r+1]; |
Helmut64 | 17:98f2528e8399 | 127 | if (buffer) { |
Helmut64 | 17:98f2528e8399 | 128 | vsnprintf(buffer, r+1, format, arg); |
Helmut64 | 17:98f2528e8399 | 129 | r = ser->write(buffer, r); |
Helmut64 | 17:98f2528e8399 | 130 | delete[] buffer; |
Helmut64 | 17:98f2528e8399 | 131 | } else { |
Helmut64 | 17:98f2528e8399 | 132 | error("%s %d cannot alloc memory (%d bytes)!\r\n", __FILE__, __LINE__, r+1); |
Helmut64 | 17:98f2528e8399 | 133 | r = 0; |
Helmut64 | 17:98f2528e8399 | 134 | } |
Helmut64 | 17:98f2528e8399 | 135 | } |
Helmut64 | 17:98f2528e8399 | 136 | if (newline) |
Helmut64 | 17:98f2528e8399 | 137 | ser->write("\r\n", 2); |
Helmut64 | 17:98f2528e8399 | 138 | } |
Helmut64 | 17:98f2528e8399 | 139 | } |
Helmut64 | 17:98f2528e8399 | 140 | |
Helmut64 | 17:98f2528e8399 | 141 | |
Helmut64 | 17:98f2528e8399 | 142 | void dump(const char *title, const void *data, int len, bool dwords) |
Helmut64 | 17:98f2528e8399 | 143 | { |
Helmut64 | 17:98f2528e8399 | 144 | dprintf("dump(\"%s\", 0x%x, %d bytes)", title, data, len); |
Helmut64 | 17:98f2528e8399 | 145 | |
Helmut64 | 17:98f2528e8399 | 146 | int i, j, cnt; |
Helmut64 | 17:98f2528e8399 | 147 | unsigned char *u; |
Helmut64 | 17:98f2528e8399 | 148 | const int width = 16; |
Helmut64 | 17:98f2528e8399 | 149 | const int seppos = 7; |
Helmut64 | 17:98f2528e8399 | 150 | |
Helmut64 | 17:98f2528e8399 | 151 | cnt = 0; |
Helmut64 | 17:98f2528e8399 | 152 | u = (unsigned char *)data; |
Helmut64 | 17:98f2528e8399 | 153 | while (len > 0) { |
Helmut64 | 17:98f2528e8399 | 154 | rprintf("%08x: ", (unsigned int)data + cnt); |
Helmut64 | 17:98f2528e8399 | 155 | if (dwords) { |
Helmut64 | 17:98f2528e8399 | 156 | unsigned int *ip = ( unsigned int *)u; |
Helmut64 | 17:98f2528e8399 | 157 | rprintf(" 0x%08x\r\n", *ip); |
Helmut64 | 17:98f2528e8399 | 158 | u+= 4; |
Helmut64 | 17:98f2528e8399 | 159 | len -= 4; |
Helmut64 | 17:98f2528e8399 | 160 | cnt += 4; |
Helmut64 | 17:98f2528e8399 | 161 | continue; |
Helmut64 | 17:98f2528e8399 | 162 | } |
Helmut64 | 17:98f2528e8399 | 163 | cnt += width; |
Helmut64 | 17:98f2528e8399 | 164 | j = len < width ? len : width; |
Helmut64 | 17:98f2528e8399 | 165 | for (i = 0; i < j; i++) { |
Helmut64 | 17:98f2528e8399 | 166 | rprintf("%2.2x ", *(u + i)); |
Helmut64 | 17:98f2528e8399 | 167 | if (i == seppos) |
Helmut64 | 17:98f2528e8399 | 168 | rprintf(" "); |
Helmut64 | 17:98f2528e8399 | 169 | } |
Helmut64 | 17:98f2528e8399 | 170 | rprintf(" "); |
Helmut64 | 17:98f2528e8399 | 171 | if (j < width) { |
Helmut64 | 17:98f2528e8399 | 172 | i = width - j; |
Helmut64 | 17:98f2528e8399 | 173 | if (i > seppos + 1) |
Helmut64 | 17:98f2528e8399 | 174 | rprintf(" "); |
Helmut64 | 17:98f2528e8399 | 175 | while (i--) { |
Helmut64 | 17:98f2528e8399 | 176 | rprintf("%s", " "); |
Helmut64 | 17:98f2528e8399 | 177 | } |
Helmut64 | 17:98f2528e8399 | 178 | } |
Helmut64 | 17:98f2528e8399 | 179 | for (i = 0; i < j; i++) { |
Helmut64 | 17:98f2528e8399 | 180 | int c = *(u + i); |
Helmut64 | 17:98f2528e8399 | 181 | if (c >= ' ' && c <= '~') |
Helmut64 | 17:98f2528e8399 | 182 | rprintf("%c", c); |
Helmut64 | 17:98f2528e8399 | 183 | else |
Helmut64 | 17:98f2528e8399 | 184 | rprintf("."); |
Helmut64 | 17:98f2528e8399 | 185 | if (i == seppos) |
Helmut64 | 17:98f2528e8399 | 186 | rprintf(" "); |
Helmut64 | 17:98f2528e8399 | 187 | } |
Helmut64 | 17:98f2528e8399 | 188 | len -= width; |
Helmut64 | 17:98f2528e8399 | 189 | u += width; |
Helmut64 | 17:98f2528e8399 | 190 | rprintf("\r\n"); |
Helmut64 | 17:98f2528e8399 | 191 | } |
Helmut64 | 17:98f2528e8399 | 192 | rprintf("--\r\n"); |
Helmut64 | 17:98f2528e8399 | 193 | } |
Helmut64 | 17:98f2528e8399 | 194 | |
Helmut64 | 17:98f2528e8399 | 195 | /* |
Helmut64 | 17:98f2528e8399 | 196 | * Convert compile time to system time |
Helmut64 | 17:98f2528e8399 | 197 | */ |
Helmut64 | 17:98f2528e8399 | 198 | time_t |
Helmut64 | 17:98f2528e8399 | 199 | cvt_date(char const *date, char const *time) |
Helmut64 | 17:98f2528e8399 | 200 | { |
Helmut64 | 17:98f2528e8399 | 201 | char s_month[5]; |
Helmut64 | 17:98f2528e8399 | 202 | int year; |
Helmut64 | 17:98f2528e8399 | 203 | struct tm t; |
Helmut64 | 17:98f2528e8399 | 204 | static const char month_names[] = "JanFebMarAprMayJunJulAugSepOctNovDec"; |
Helmut64 | 17:98f2528e8399 | 205 | sscanf(date, "%s %d %d", s_month, &t.tm_mday, &year); |
Helmut64 | 17:98f2528e8399 | 206 | sscanf(time, "%2d %*c %2d %*c %2d", &t.tm_hour, &t.tm_min, &t.tm_sec); |
Helmut64 | 17:98f2528e8399 | 207 | // Find where is s_month in month_names. Deduce month value. |
Helmut64 | 17:98f2528e8399 | 208 | t.tm_mon = (strstr(month_names, s_month) - month_names) / 3; |
Helmut64 | 17:98f2528e8399 | 209 | t.tm_year = year - 1900; |
Helmut64 | 17:98f2528e8399 | 210 | return (int)mktime(&t); |
Helmut64 | 17:98f2528e8399 | 211 | } |