EthernetENC for ESP8266 and 28J60

Projects Programming
1

Hi

I have an ESP8266 connected to a ENC28J60 MOSI on D7, MISO on D6 and SCLK on D5. The code is set for D2 for CS but I have tried D0, D3 and D4 as well all crash but at different points, microsecondDelay is common.

The ESP8266 resets when I compile and use the following code, I do not get passed the setup stage.

#include <EthernetENC.h>
#include <EthernetUdp.h>
const unsigned int UDP_TX_PACKET_MAX_SIZE = 100;

IPAddress ip( 192, 168, 1, 218 );
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0x02, 0x18 };
  
EthernetUDP udpServer;

void setup() {
  
 Serial.begin(9600);  
  while( !Serial ) {
      delay(1);
  } 
  delay(200);    
  Serial.println("\nDebug setup");
  
  Ethernet.init( D2 );
  Ethernet.begin(mac, ip);
}

void loop() { 
 
}

I get the stack trace

Soft WDT reset

>>>stack>>>

ctx: cont
sp: 3ffffc50 end: 3fffffc0 offset: 01a0
3ffffdf0:  00000003 3ffe85cf 3ffee7e2 40100290  
3ffffe00:  3ffe85cf 3ffee7e2 ea000000 40203088  
3ffffe10:  000000ea 3ffe85ce 00000060 3ffffed8  
3ffffe20:  3ffffed0 3ffee7e2 000000ea 4020322c  
3ffffe30:  3ffffed0 3ffee7e2 00000100 402037a6  
3ffffe40:  3ffffed0 3ffee7e2 3ffe85c8 402038e7  
3ffffe50:  feefeffe feef0001 feefeffe 3ffffed8  
3ffffe60:  3ffffed0 3ffffec8 3ffe85c8 40202767  
3ffffe70:  feefeffe feefeffe 3ffffec0 4020282d  
3ffffe80:  feefeffe feefeffe feefeffe feefeffe  
3ffffe90:  feefeffe feefeffe feefeffe feefeffe  
3ffffea0:  feefeffe feefeffe feefeffe 3fffff28  
3ffffeb0:  3fffff20 3ffe85c8 3ffee524 402028c8  
3ffffec0:  40207de8 00ffffff 40207de8 0101a8c0  
3ffffed0:  40207de8 0101a8c0 40207de8 da01a8c0  
3ffffee0:  40207de8 00ffffff feefeffe feefeffe  
3ffffef0:  3fffff30 feefeffe feefeffe 3ffef554  
3fffff00:  4020603d 00000001 00000020 3fffff60  
3fffff10:  3ffe85c8 3ffee524 3fffff68 40202925  
3fffff20:  40207de8 0101a8c0 40207de8 0101a8c0  
3fffff30:  40207de8 da01a8c0 40207de8 0101a8c0  
3fffff40:  40204820 3ffe87ec 3ffee80c 3ffee884  
3fffff50:  3ffe85c8 3ffee524 3fffff90 4020296e  
3fffff60:  40207de8 0101a8c0 40207de8 da01a8c0  
3fffff70:  40207de8 0101a8c0 3ffee884 40204b8c  
3fffff80:  3fffdad0 00000000 3ffee524 40202511  
3fffff90:  40207de8 da01a8c0 feefeffe feefeffe  
3fffffa0:  feefeffe feefeffe 3ffee870 40205188  
3fffffb0:  feefeffe feefeffe 3ffe85e0 40100bc1  
<<<stack<<<

Which when put through the Exception decoder gives


*Decoding stack results* 0x40100290: **__digitalWrite(uint8_t, uint8_t)** at C:\Users\MalcolmJohnson\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266\**core_esp8266_wiring_digital.cpp** line **87** 0x40203088: **Enc28J60Network::readOp(unsigned char, unsigned char)** at C:\Users\MalcolmJohnson\Documents\Arduino\libraries\EthernetENC\src\utility\**Enc28J60Network.cpp** line **427** 0x4020322c: **Enc28J60Network::readReg(unsigned char)** at C:\Users\MalcolmJohnson\Documents\Arduino\libraries\EthernetENC\src\utility\**Enc28J60Network.cpp** line **500** 0x402037a6: **Enc28J60Network::phyWrite(unsigned char, unsigned short)** at C:\Users\MalcolmJohnson\Documents\Arduino\libraries\EthernetENC\src\utility\**Enc28J60Network.cpp** line **530** 0x402038e7: **Enc28J60Network::init(unsigned char*)** at C:\Users\MalcolmJohnson\Documents\Arduino\libraries\EthernetENC\src\utility\**Enc28J60Network.cpp** line **128** 0x40202767: **UIPEthernetClass::init(unsigned char const*)** at C:\Users\MalcolmJohnson\Documents\Arduino\libraries\EthernetENC\src\**Ethernet.cpp** line **311** 0x4020282d: **UIPEthernetClass::begin(unsigned char const*, IPAddress, IPAddress, IPAddress, IPAddress)** at C:\Users\MalcolmJohnson\Documents\Arduino\libraries\EthernetENC\src\**Ethernet.cpp** line **105** 0x402028c8: **UIPEthernetClass::begin(unsigned char const*, IPAddress, IPAddress, IPAddress)** at C:\Users\MalcolmJohnson\Documents\Arduino\libraries\EthernetENC\src\**Ethernet.cpp** line **98** 0x4020603d: **uart_flush(uart_t*)** at C:\Users\MalcolmJohnson\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266\**uart.cpp** line **586** 0x40202925: **UIPEthernetClass::begin(unsigned char const*, IPAddress, IPAddress)** at C:\Users\MalcolmJohnson\Documents\Arduino\libraries\EthernetENC\src\**Ethernet.cpp** line **91** 0x40204820: **HardwareSerial::write(unsigned char const*, unsigned int)** at C:\Users\MalcolmJohnson\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266/**HardwareSerial.h** line **193** 0x4020296e: **UIPEthernetClass::begin(unsigned char const*, IPAddress)** at C:\Users\MalcolmJohnson\Documents\Arduino\libraries\EthernetENC\src\**Ethernet.cpp** line **83** 0x40204b8c: **Print::println(char const*)** at C:\Users\MalcolmJohnson\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266\**Print.cpp** line **238** 0x40202511: **setup()** at C:\Users\MalcolmJohnson\Documents\Phasear\Arduino\ESP8266_ENC28J60/**ESP8266_ENC28J60.ino** line **26** 0x40205188: **loop_wrapper()** at C:\Users\MalcolmJohnson\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\cores\esp8266\**core_esp8266_main.cpp** line **198**

I am trying to work out what I have done missed in the setup to cause the crash.

2

only you can decode the stack trace. use the stack trace decoder plugin.

but, for the enc28j60 on esp8266 use the lwIP_enc28j60 library which is bundled with the esp8266 core v. 3

3

Hi Juraj, the trace is for the above code, I would have thought that it may be repeatable, but will give lwIP_enc28j60 a go

4

the stack decoder uses the elf file of the compiled sketch