PJONSoftwareBitBang between stm32f4 and arduino nano not working

[rozrabiak]

Communication between two arduino nanos working. That same code in stm32f4 (stm32duino) not working, arduino nano says: Connection with device ID 10 is lost. I'm using WeAct BlackPill pin PC14 (5V tolerant) and Arduino Nano PD5.

ARDUINO NANO CODE:

include // Include only SoftwareBitBang

define pjonPin 5 //pin komunikacyjny pjon

PJONSoftwareBitBang pjonBus(43);

void pjonReceiver(uint8_t payload, uint16_t length, const PJON_Packet_Info &packet_info); void error_handler(uint8_t code, uint16_t data, void custom_pointer) { if(code == PJON_CONNECTION_LOST) { Serial.print("Connection with device ID "); Serial.print(pjonBus.packets[data].content[0], DEC); Serial.println(" is lost."); } if(code == PJON_PACKETS_BUFFER_FULL) { Serial.print("Packet buffer is full, has now a length of "); Serial.println(data, DEC); Serial.println("Possible wrong bus configuration!"); Serial.println("higher PJON_MAX_PACKETS if necessary."); } if(code == PJON_CONTENT_TOO_LONG) { Serial.print("Content is too long, length: "); Serial.println(data); } }; void setup() { // put your setup code here, to run once: Serial.begin(9600); pjonBus.set_error(error_handler); pjonBus.strategy.set_pin(pjonPin); pjonBus.set_receiver(pjonReceiver); pjonBus.begin();
Serial.println("START"); }

void loop() { pjonBus.update(); pjonBus.receive(1000); pjonBus.send(10, "test", 4); delay(1000); }

void pjonReceiver(uint8_t *payload, uint16_t length, const PJON_Packet_Info &packet_info) { Serial.print("dane ze sterownika "); Serial.println(packet_info.tx.id); Serial.print("dane "); Serial.println(payload[0]);
};

CODE FROM STM32DUINO:

PJONSoftwareBitBang pjonBus(10);

define pjonPin PC14

void setup() { pjonBus.strategy.set_pin(pjonPin); pjonBus.begin(); pjonBus.set_receiver(pjonReceiver); pjonBus.set_error(pjon_error_handler); }

void loop() { pjonBus.update(); pjonBus.receive(); //1000 }

void pjonReceiver(uint8_t *payload, uint16_t length, const PJON_Packet_Info &packet_info) { Serial.print("dane z pjon "); Serial.println(payload[0]); };

[gryzli133]

Did you try to use other pin on stm32? I had similar problems with ESP8266, but then I have used another pin and it starts to work.

[rozrabiak]

Did you try to use other pin on stm32? I had similar problems with ESP8266, but then I have used another pin and it starts to work.

I'll try all pins :-) F4 is on unsuporrted list with SBB...

My board: https://stm32-base.org/boards/STM32F411CEU6-WeAct-Black-Pill-V2.0.html

[2114L3]

dont use delay in your main loop, you will be holding the nano out from running update() as it needs to for the non-blocking send command. keep the main loop running and use counters to trigger your send