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 <PJONSoftwareBitBang.h> // 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