Can't RX on ESP8266

[Bitobux]

Thank you TMRh20 for your great work on RF24 and RF24Network libs.

My config: node 0: ESP8266 + nRF24L01+ mini node 1: Arduino Pro Mini + nRF24L01+ mini

Wires are OK because: works with MySensors libraries. helloworld_tx on ESP and helloworld_rx on Pro Mini works.

ISSUE: helloworld_rx on ESP and helloworld_tx on Pro Mini: Every time node 0 (ESP) receives a message restarts:

Exception (9): .... rst cause:2, boot mode:(3,6)

Ideas?

[Avamander]

Please post the full exception.

[Bitobux]

On the TX side (Pro Mini): Sending...ok. Sending...ok. : On the RX side (ESP8266): RF24Network/examples/helloworld_rx/

Exception (9): epc1=0x40201b02 epc2=0x00000000 epc3=0x00000000 excvaddr=0x3ffee961 depc=0x00000000

ctx: cont sp: 3ffef9d0 end: 3ffefc00 offset: 01a0

stack>>> 3ffefb70: 000000ff 00000010 3ffeeaa0 3ffeebcc
3ffefb80: 000000ff 3ffee922 3ffeeaa0 00000000
3ffefb90: 000000ff 3ffee922 3ffee918 40202009
3ffefba0: cccccc01 00000000 3ffee918 40201d38
3ffefbb0: 3ffeeaa0 3ffeeaa0 3ffeeac0 3ffeebcc
3ffefbc0: 3fffdc20 3ffee918 3ffeebc4 402018b4
3ffefbd0: 40203559 00000000 3ffeeba0 4020188c
3ffefbe0: 00000000 00000000 3ffeebc4 40203581
3ffefbf0: 00000000 00000000 3ffeebe0 40100114
<<<stack<<<

ets Jan 8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1264, room 16 tail 0 chksum 0x42 csum 0x42 ~ld

If I swap the scripts: On Pro Mini: Received packet #36 at 74000 Received packet #37 at 76000 Received packet #38 at 78000

On ESP8266: Sending...ok. Sending...ok. Sending...ok.

[Bitobux]

After some investigations..... the issue is at function: uint8_t RF24Network::enqueue(RF24NetworkHeader* header) ...... if(message_size + (next_frame-frame_queue) <= MAIN_BUFFER_SIZE){ memcpy(next_frame,&frame_buffer,8); RF24NetworkFrame f = (RF24NetworkFrame)next_frame; f->message_size = message_size; <<<<< BOOOM!!! memcpy(next_frame+10,frame_buffer+sizeof(RF24NetworkHeader),message_size);

Note: there is a similar open issue: Alignment issue on ARM #78

[Bitobux]

I think the problem is padding:

the struct RF24NetworkFrame contains: 8 bytes: RF24NetworkHeader > 8 bites 2 bytes: uint16_t message_size >2 bites 2 bytes: uint8_t *message_buffer total: 14 bytes

Serial.print("sizeof(RF24NetworkFrame)="); Serial.println(sizeof(RF24NetworkFrame)); prints 16

I'm using Arduino IDE.

[Bitobux]

With some changes my ESP8266 can RX... please read my comment at issue #78

[TMRh20]

Fixed

[jdpanchal]

it is possible to use RF24Network.h in esp8266.it s working properly in ardiuno nano. error is as below. please give some suggestion, thanks you.

Arduino: 1.8.3 (Windows 10), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, Flash, Disabled, 4M (no SPIFFS), v2 Lower Memory, Disabled, None, Only Sketch, 115200"

WARNING: library RF24Network-master claims to run on (avr) architecture(s) and may be incompatible with your current board which runs on (esp8266) architecture(s). C:\Users\jigo\Desktop\NRF +ESP\esp8266\esp8266.ino: In function 'void loop()':

esp8266:168: error: invalid conversion from 'const void' to 'void' [-fpermissive]

 network.read(header, &incomingData, sizeof(incomingData)); // Read the incoming data

                                                         ^

In file included from C:\Users\jigo\Desktop\NRF +ESP\esp8266\esp8266.ino:14:0:

C:\Users\jigo\Documents\Arduino\libraries\RF24Network-master/RF24Network.h:467:12: error: initializing argument 2 of 'uint16_t RF24Network::read(RF24NetworkHeader&, void*, uint16_t)' [-fpermissive]

uint16_t read(RF24NetworkHeader& header, void* message, uint16_t maxlen);

        ^

exit status 1 invalid conversion from 'const void' to 'void' [-fpermissive]

This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.

[Avamander]

@jdpanchal It's an error in your code.