-
Notifications
You must be signed in to change notification settings - Fork 4
/
gps-ntp-eth-esp32.ino
681 lines (574 loc) · 21.7 KB
/
gps-ntp-eth-esp32.ino
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
/*
* This piece of code uses the hardware UART to connect to the GPS, and fetches the time.
* ntp seconds: Seconds since 01/01/1900!
*/
#include <Wire.h>
#include <time.h>
#include <string.h>
/// ESP-related stuff. You can get these via the board manager
#include <WiFi.h>
#include <WiFiClient.h>
#include <WiFiUdp.h>
#include <Ticker.h>
// You can get these libraries from the arduino library manager
#include <TFT_eSPI.h> // Graphics and font library for ILI9341 driver chip
#include <SPI.h>
// Local stuff.
#include "minmea.h"
#include "DateTime.h" // this helps with the NTP time stamp calculations.
/*
* Global settings
*/
// Debug mode
#define DEBUG
// Wi-Fi stuff.
//#define OPERATE_AS_AP
//OR
//#define OPERATE_AS_STA
//OR
#define OPERATE_AS_ETH
#ifdef OPERATE_AS_STA
// Change this info with your network's name and password, if you want to use the client mode.
const char ssid[] = "SSID"; //SSID of your network
const char pass[] = "PASS"; //password of your WPA Network
#endif
#ifdef OPERATE_AS_AP
const char ssid[] = "NTP"; //SSID of your network
const char pass[] = "NTP"; //password of your WPA Network
#define CHANNEL 9 // Wifi channel. Between 1 and 13, to your taste. 2.4 GHz.
#define HIDE_SSID false // Don't hide SSID.
#define MAX_CONNECTION 3 // How many clients we should handle simultaneously. between 0 and 8.
// the IP will be 192.168.4.1. It can be cinfigured further, but I don't think it matters.
#endif
#ifdef OPERATE_AS_ETH
#include <ETH.h>
#define ETH_ADDR 1
#define ETH_POWER_PIN 16 // -1 // ??? Do not use it, it can cause conflict during the software reset.
#define ETH_POWER_PIN_ALTERNATIVE 16 // 17 // ???
#define ETH_MDC_PIN 23
#define ETH_MDIO_PIN 18
#define ETH_TYPE ETH_PHY_LAN8720
//#define ETH_CLK_MODE ETH_CLOCK_GPIO17_OUT // ETH_CLOCK_GPIO0_IN // ???
#endif
#define NTP_PORT 123
#define NTP_PACKET_SIZE 48
String ip = ""; // we use DHCP
/*
* Hardware pins
*/
// GPS
#define GPS_BAUDRATE 115200
#define GPS_PPS_PIN 33 // If your GPS doesn't have a PPS output, just comment out this line.
#define GPS_RX_PIN 35 //16
#define GPS_TX_PIN 17
//#define GPS_EN_PIN 12 // If your GPS doesn't have a EN input
/* IMPORTANT:
* ALWAYS VERIFY TIMING ACCURACY BEFORE USING THIS DEVICE!!!
*
* Since this device doesn't take leap seconds into account, the 'correct' time will be calculated with a simple offset.
* This offset affects the microsecond counter so fine control can be achieved.
* NOTE that this only ever can be a positive number!
*
*/
#define TIMING_OFFSET_US 0001
/*
* Library-provided high-level objects
*/
TFT_eSPI tft = TFT_eSPI(); // Invoke library, pins defined in User_Setup.h
Ticker display_timer; // This controls how often the screen is updated.
WiFiUDP Udp; // UDP handler.
/*
* Global variables
*/
struct event_s {
uint8_t notSatellite : 1;
uint8_t notPPS : 1;
uint8_t newIP : 1;
};
union sysStatus_u {
uint8_t all;
struct event_s event;
} sysStatus;
uint8_t sysStatusCache = 255;
String chackIPCache;
bool can_respond_to_packets = false; // Set to true when the data is parsed, set to false just after sending an NTP packet.
char there_is_new_data = 0; // This is for the UART
String uart_string; // A GPS string should not be any longer than this.
unsigned int uart_string_length = 0; // This tells how long an NMEA sentence is, in bytes.
bool update_the_display = false; // This is controlled from a timer.
struct minmea_sentence_rmc rmc_frame; // $GPRMC frame, after minmea parsed it.
struct minmea_sentence_gga gga_frame; // $GPRMC frame, after minmea parsed it.
char gps_sentence[MINMEA_MAX_LENGTH]; // Character array, initialised as per the minmea lib.
// these are for keeping time.
unsigned long microsecond_counter = 0; // CPU microseconds
int satellites_tracked = 0; //
DateTime reference_time; // This is being updated by the G
DateTime uart_time; // this is the DateTime structure decoded by the GPS.
DateTime receive_time; // This is set on an incoming NTP request
DateTime transmit_time; // This is set when transmitting the NTP packet.
byte origTimeTs[9]; // The remote host's local time stamp.
byte packetBuffer[NTP_PACKET_SIZE];
void setup() {
// For randomisation, we need this: the ADC is not connected, so it reads noise,
randomSeed(analogRead(A0));
// Wifi.
#ifdef OPERATE_AS_AP
// Stand-alone access point.
WiFi.disconnect(true); // This re-initialises the wifi.
WiFi.softAP(ssid, CHANNEL, HIDE_SSID, MAX_CONNECTION);
#endif
#ifdef OPERATE_AS_STA
// If client, use these.
WiFi.disconnect(true); // This re-initialises the wifi.
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, pass);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
}
#endif
#ifdef OPERATE_AS_ETH
pinMode(ETH_POWER_PIN_ALTERNATIVE, OUTPUT);
digitalWrite(ETH_POWER_PIN_ALTERNATIVE, HIGH);
#endif
#ifdef GPS_EN_PIN
pinMode(GPS_EN_PIN, OUTPUT);
digitalWrite(GPS_EN_PIN, 0); // Disable the GPS receiver
#endif
// DEBUG: Serial port
Serial.begin(115200); // GPS is connected to the uart's RX pin.
// GPS: Serial port and enable pin
Serial2.begin(GPS_BAUDRATE, SERIAL_8N1, GPS_RX_PIN, GPS_TX_PIN);
#ifdef GPS_EN_PIN
digitalWrite(GPS_EN_PIN, 1); // This turns on the GPS receiver, if hooked up.
#endif
// GPS: PPS-pin handling, if the PPS-pin is specified.
#ifdef GPS_PPS_PIN
pinMode(GPS_PPS_PIN, INPUT_PULLUP);
attachInterrupt(digitalPinToInterrupt(GPS_PPS_PIN), pps_interrupt, FALLING); // Interrupt is triggered on falling edge.
#endif
uart_string.reserve(200);
// Timer.
display_timer.attach_ms(900, set_display_to_update); // This starts a display frame update, every 500 milliseconds.
// Network.
#ifdef OPERATE_AS_ETH
//WiFi.onEvent(EthEvent); //attach ETH PHY event handler
ETH.begin(ETH_ADDR, ETH_POWER_PIN, ETH_MDC_PIN, ETH_MDIO_PIN, ETH_TYPE, ETH_CLK_MODE); // Enable ETH
ip = ETH.localIP().toString();
#endif
Udp.begin(NTP_PORT); // start udp server
// TFT screen
tft.init();
tft.setRotation(3);
tft.fillScreen(TFT_BLACK);
// Debug message via uart.
#ifdef DEBUG
Serial.println("Hardware initialised, now entering loop.");
#ifdef OPERATE_AS_ETH
Serial.print("ETH IP:");
Serial.println(ETH.localIP());
#endif
#ifdef OPERATE_AS_AP
Serial.print("AP IP:");
Serial.println(WiFi.softAPIP());
#endif
#ifdef OPERATE_AS_STA
Serial.print("STA IP:");
Serial.println(WiFi.localIP());
#endif
#endif
}
void loop() {
/*
* Do we have a GPS sentence?
*/
noInterrupts(); // disable interrupts while waiting for a sentence.
if(Serial2.available())
{
uart_string = Serial2.readStringUntil('\n'); // Read string until carriage return.
there_is_new_data = 1;
#ifdef DEBUG
//Serial.println("Echo the GPS sentence");
//Serial.println(uart_string); // Echo the GPS sentence.
#endif
}
interrupts(); // Re-enable interrupts after the string is received.
/*
* Parse the GPS sentence.
*/
if(there_is_new_data)
{
uart_string_length = uart_string.length();
uart_string.toCharArray(gps_sentence, uart_string_length); // Copy the string to a character array so minmea can process it.
there_is_new_data = 0;
uart_string = ""; // Clear this string.
Serial2.flush(); // If there was something remaining in the buffer, it's gone now.
parse_rmc(); // Update the date and time using gps_sentence
can_respond_to_packets = true; // Now we can respond to NTP requests.
}
/*
* Can we update the display?
* (Ticker calls timer function, sets semaphore, and then execute this statement once.)
*/
if(update_the_display)
{
drive_display(); // Update the contents of the screen.
update_the_display = false; // Make sure this is being executed once per call.
}
/*
* Have we got a time sync request??
*/
// process NTP requests
IPAddress remoteIP; // this will store the remote hosts's IP address
int remotePort; // the port it was sent from
int packetSize = Udp.parsePacket();
if (packetSize && !sysStatus.event.notPPS && !sysStatus.event.notSatellite && can_respond_to_packets) // we've got a packet, and there is GPS fix, and we have received new GPS data since the last NTP reply
{
/*
* Process NTP request.
*/
// Disable interrupts for this time.
//noInterrupts();
receive_time = get_time_now(); // Log the time the packet came in
//store sender ip and port for later use
remoteIP = Udp.remoteIP();
remotePort = Udp.remotePort();
#ifdef DEBUG
// Some very useful debug stuff. But it takes time!
Serial.print("*********************************\r\nReceived UDP packet with ");
Serial.print(packetSize);
Serial.print(" bytes size - ");
Serial.print("SourceIP ");
for (uint8_t i =0; i < 4; i++)
{
Serial.print(remoteIP[i], DEC);
if (i < 3)
{
Serial.print(".");
}
}
Serial.print(", Port ");
Serial.println(remotePort);
Serial.print("query: ");
Serial.print(receive_time.toStringTime());
Serial.print(",");
Serial.print(receive_time.microsfraction());
Serial.println();
#endif
// We've received a packet, read the data from it
// read the packet into the buffer
Udp.read(packetBuffer, NTP_PACKET_SIZE);
//get client transmit time (becomes originTime in reply packet)
for (int i = 0; i < 8; i++)
origTimeTs[i] = packetBuffer[40+i];
sendNTPpacket(remoteIP, remotePort);
#ifdef DEBUG
//send NTP reply
Serial.print("reply: ");
Serial.print(transmit_time.toStringTime());
Serial.print(",");
Serial.println(transmit_time.microsfraction());
Serial.println("NTP reply sent.\r\n*********************************");
#endif
//Re-enable the interrupts
//interrupts();
//can_respond_to_packets == false; // This is set so no NTP responses will be sent until we have new GPS data.
}
}
void parse_rmc()
{
// This function parses the $GPRMC NMEA sentence. This function works with global variables, and updates the reference_time accordingly.
switch(minmea_sentence_id(gps_sentence, true))
{
// In this function, the boolean value enables GPS sentence checksum verification.
case MINMEA_SENTENCE_RMC:
if(minmea_parse_rmc(&rmc_frame, gps_sentence))
{
sysStatus.event.notSatellite = false;
// Checking for zero data with GPS
if (rmc_frame.date.year == -1 || rmc_frame.date.month == -1 || rmc_frame.date.day == -1 || rmc_frame.time.hours == -1 || rmc_frame.time.minutes == -1 || rmc_frame.time.seconds == -1)
sysStatus.event.notSatellite = true;
else
uart_time = DateTime((uint16_t)rmc_frame.date.year, (uint16_t)rmc_frame.date.month, (uint16_t)rmc_frame.date.day, (uint16_t)rmc_frame.time.hours, (uint16_t)rmc_frame.time.minutes, (uint16_t)rmc_frame.time.seconds, TIMING_OFFSET_US); // (uint16_t)61, (unsigned long)rmc_frame.time.microseconds);
// For some reason, my GPS returns dummy data when it can't find fix. Not sure why this happens.
// well, this will be a problem in 2036. This was written in 2019, so there is time to fix it :)
if(reference_time.unixtime() == (uint32_t)2085978497)
sysStatus.event.notSatellite = true;
// Update the microsecond counter too, if no PPS pin is assigned.
#ifndef GPS_PPS_PIN
pps_interrupt(); // If the system had a GPS_PPS_PIN, this function would be executed in an interrupt.
#endif
//Serial.println("RMC sentence received.");
}
else
{
// If the parsing failed
//Serial.println("Bad RMC sentence!");
}
break;
case MINMEA_SENTENCE_GGA:
if(minmea_parse_gga(&gga_frame, gps_sentence))
satellites_tracked = gga_frame.satellites_tracked;
//Serial.println("GGA sentence received.");
break;
case MINMEA_SENTENCE_GSA:
//Serial.println("GSA sentence received.");
break;
case MINMEA_SENTENCE_VTG:
//Serial.println("VTG sentence received.");
break;
case MINMEA_SENTENCE_ZDA:
//Serial.println("ZDA sentence received.");
break;
default:
//Do nothing.
break;
}
}
DateTime get_time_now(void)
{
/*
* this function derives the time from the reference time, and gets the number of microseconds since the last GPS update.
* It derives time from reference_time, which is set by the GPS, and the PPS interrupt, if any.
*/
DateTime stuff_to_return; // This is what we are going to return.
unsigned long current_microsecond_counter = micros(); // Get the number of microseconds
uint32_t current_reference_time = reference_time.ntptime(); // This gets the time as per NTP
// This calculates the time difference since the last $GPRMC NMEA sentence in microseconds, and takes a manual offset into account
unsigned long microsecond_difference = (current_microsecond_counter - microsecond_counter) + TIMING_OFFSET_US;
// debug stuff
/*Serial.print("current_microsecond_counter: ");
Serial.println(current_microsecond_counter);
Serial.print("microsecond_counter: ");
Serial.println(microsecond_counter);
Serial.print("microsecond_difference: ");
Serial.println(microsecond_difference);*/
// Did the PPS impulses stop happening? Make this crash!
if( (microsecond_difference > 5000000) || (microsecond_difference > -5000000))
{
sysStatus.event.notPPS = true;
#ifdef DEBUG
Serial.println("No GPS data or PPS pulse was received in the past 5 seconds.");
#endif
}
else
sysStatus.event.notPPS = false;
// Did we have a variable overflow?
if(microsecond_counter > current_microsecond_counter)
{
microsecond_difference = 0; // This is going to introduce a an error up to a second at variable overflow.
//microsecond_difference = (current_microsecond_counter - ((unsigned long)-1 - microsecond_counter)) + TIMING_OFFSET_US;
}
// Did we experience time longer than a second? A Lot longer too? Compensate.
while( (microsecond_difference >= 10000000))
{
// If we get a larger than 1 second here, we have a problem.
microsecond_difference = microsecond_difference - 1000000; // Remove the extra second offset
//current_reference_time += 1; //...and add it to the time.
}
// Now let's assemble the new DateTime object so we can return it.
stuff_to_return = DateTime(current_reference_time, microsecond_difference);
return stuff_to_return;
}
uint64_t DateTimeToNtp64(DateTime time_to_send)
{
/*
* This function generates the time information required for the NTP packet.
*/
uint64_t time_stamp; // 64-bit time stamp.
time_stamp = (((uint64_t)time_to_send.ntptime()) << 32); // Shove it to the top 32 bits.
time_stamp |= (uint64_t)(time_to_send.microsfraction() * 4294.967296); // Add the lower 32-bit nibble, which is the precise information
return (time_stamp);
}
// send NTP reply to the given address
void sendNTPpacket(IPAddress remoteIP, int remotePort)
{
/*
* This function assembles an NTP packet, and sends it back to the host requesting it.
*/
// LI: 0, Version: 4, Mode: 4 (server)
//packetBuffer[0] = 0b00100100;
// Not a leap second (LI=0), NTP version: 3, Mode: 4 (server)
packetBuffer[0] = 0b00011100;
// Stratum, or type of clock. Since we have the clock derived from a GPS, we are stratum 1, no matter how inaccurate are we.
packetBuffer[1] = 0b00000001;
// Polling Interval: the log2 value of the maximum interval between souccessive messages
packetBuffer[2] = 2; // Was 4.
// Peer Clock Precision
// log2(sec)
// 0xF6 <--> -10 <--> 0.0009765625 s
// 0xF7 <--> -9 <--> 0.001953125 s
// 0xF8 <--> -8 <--> 0.00390625 s
// 0xF9 <--> -7 <--> 0.0078125 s
// 0xFA <--> -6 <--> 0.0156250 s
// 0xFB <--> -5 <--> 0.0312500 s
// 0xFC <--> -4 <--> 0.0625 s
// 0xFD <--> -3 <--> 0.125 s
#ifndef GPS_PPS_PIN
// report a worse precision if a GPS without PPS output was used.
packetBuffer[3] = 0xFC;
#else
packetBuffer[3] = 0xF6; // the actual clock precision is better, but let's be conservative, this is just a microcontroller!
#endif
// 8 bytes for Root Delay & Root Dispersion
// Root delay is 0, becuase we got our clock from a GPS.
packetBuffer[4] = 0;
packetBuffer[5] = 0;
packetBuffer[6] = 0;
packetBuffer[7] = 0;
// Root dispersion. Refers to clock frequency tolerance. Well, I guess this is a bit optimistic :)
packetBuffer[8] = 0;
packetBuffer[9] = 0;
packetBuffer[10] = 0;
packetBuffer[11] = 0x50;
// Time source is GPS. The external reference source code is GPS.
packetBuffer[12] = 71; // G
packetBuffer[13] = 80; // P
packetBuffer[14] = 83; // S
packetBuffer[15] = 0;
// Reference Time.
uint64_t refT = DateTimeToNtp64(get_time_now()); // This one fetches the current time.
packetBuffer[16] = (int)((refT >> 56) & 0xFF);
packetBuffer[17] = (int)((refT >> 48) & 0xFF);
packetBuffer[18] = (int)((refT >> 40) & 0xFF);
packetBuffer[19] = (int)((refT >> 32) & 0xFF);
packetBuffer[20] = (int)((refT >> 24) & 0xFF);
packetBuffer[21] = (int)((refT >> 16) & 0xFF);
packetBuffer[22] = (int)((refT >> 8) & 0xFF);
packetBuffer[23] = (int)(refT & 0xFF);
// Origin Time
//copy old transmit time to origtime
for (int i = 24; i < 32; i++)
packetBuffer[i] = origTimeTs[i-24];
// write Receive Time to bytes 32-39
refT = DateTimeToNtp64(receive_time);
packetBuffer[32] = (int)((refT >> 56) & 0xFF);
packetBuffer[33] = (int)((refT >> 48) & 0xFF);
packetBuffer[34] = (int)((refT >> 40) & 0xFF);
packetBuffer[35] = (int)((refT >> 32) & 0xFF);
packetBuffer[36] = (int)((refT >> 24) & 0xFF);
packetBuffer[37] = (int)((refT >> 16) & 0xFF);
packetBuffer[38] = (int)((refT >> 8) & 0xFF);
packetBuffer[39] = (int)(refT & 0xFF);
// get current time + write as Transmit Time to bytes 40-47
transmit_time = get_time_now();
refT = DateTimeToNtp64(transmit_time);
packetBuffer[40] = (int)((refT >> 56) & 0xFF);
packetBuffer[41] = (int)((refT >> 48) & 0xFF);
packetBuffer[42] = (int)((refT >> 40) & 0xFF);
packetBuffer[43] = (int)((refT >> 32) & 0xFF);
packetBuffer[44] = (int)((refT >> 24) & 0xFF);
packetBuffer[45] = (int)((refT >> 16) & 0xFF);
packetBuffer[46] = (int)((refT >> 8) & 0xFF);
packetBuffer[47] = (int)(refT & 0xFF);
// send reply:
Udp.beginPacket(remoteIP, remotePort);
Udp.write(packetBuffer, NTP_PACKET_SIZE);
Udp.endPacket();
}
// This is the interrupt function.
void pps_interrupt()
{
// Log the microseconds counter, so we know what the time was when the interrupt happened.
microsecond_counter = micros();
// This function sets the reference time, every second.
uint32_t reference_time_to_process_in_ntp = uart_time.ntptime(); // Save the current time as NTP time.
#ifdef GPS_PPS_PIN
reference_time_to_process_in_ntp++; // Increase the number of seconds, when using PPS interrupt.
#endif
reference_time = DateTime(reference_time_to_process_in_ntp, (unsigned long)TIMING_OFFSET_US); // This updates the global reference time.
// Print the current time, so we can check the fraction stuff.
// reference_time.print();
}
void set_display_to_update(void)
{
// This function adjusts a semaphore, which controls the display update. The Adafruit library doesn't seem to like being used from an interrupt function.
update_the_display = true; // Set this global variable. The display is updated from the loop() function.
}
void drive_display()
{
chackIP();
// Refresh screen after changing error flags
if(sysStatusCache != sysStatus.all)
{
sysStatusCache = sysStatus.all;
tft.fillScreen(TFT_BLACK);
tft.setTextColor(TFT_WHITE, TFT_BLACK);
tft.setCursor(5, 16 * 0, 2); // 16
tft.println("GPS NTP Server");
tft.setTextColor(TFT_GREEN,TFT_BLACK);
tft.setCursor(5, 16 * 1, 2);
#ifdef OPERATE_AS_ETH
tft.print("ETH: ");
#endif
#ifdef OPERATE_AS_AP
tft.print("AP: ");
#endif
#ifdef OPERATE_AS_STA
tft.print("STA: ");
#endif
tft.println(ip);
sysStatus.event.newIP = 0;
}
//satellites tracked
tft.setTextColor(TFT_ORANGE,TFT_BLACK);
tft.setCursor(135, 0, 2);
char charDate[4];
sprintf(charDate, "S%02d", satellites_tracked);
tft.print(charDate);
//
DateTime time_tmp = get_time_now();
if(!(sysStatus.event.notSatellite || sysStatus.event.notPPS))
{
tft.setTextColor(TFT_MAGENTA,TFT_BLACK);
tft.setCursor(28, 5 + 16 * 2, 4); // 26
tft.println(time_tmp.toStringTime());
tft.setTextColor(0xFC9F,TFT_BLACK);
tft.setCursor(38, 5 + 16 * 2 + 21, 2);
tft.println(time_tmp.toStringDate());//reference_time
}
else
{
if(sysStatus.event.notSatellite)
{
tft.setTextColor(TFT_RED,TFT_BLACK);
tft.setCursor(38, 16 * 2, 2);
tft.println("GPS ERROR");
}
if(sysStatus.event.notPPS)
{
tft.setTextColor(TFT_RED,TFT_BLACK);
tft.setCursor(38, 16 * 3, 2);
tft.println("PPS ERROR");
}
}
}
//String IP;
int countNotIP = 0;
void chackIP()
{
#ifdef OPERATE_AS_ETH
ip = ETH.localIP().toString();
//There is a bug. disconnected once a day
if(ip == "0.0.0.0")
{
countNotIP++;
if(countNotIP >= 5)
{
//Serial.print("init eth");
countNotIP = 0;
ETH.begin(ETH_ADDR, ETH_POWER_PIN, ETH_MDC_PIN, ETH_MDIO_PIN, ETH_TYPE, ETH_CLK_MODE); // Enable ETH
}
}
#endif
#ifdef OPERATE_AS_AP
ip = WiFi.softAPIP().toString();
#endif
#ifdef OPERATE_AS_STA
ip = WiFi.localIP().toString();
#endif
if(chackIPCache != ip)
{
chackIPCache = ip;
sysStatus.event.newIP = 1;
}
}