STM32L011G4U6 + RFM69HCW

[fanfan6966]

Hello everyone, I have a custom PCB with an RFM69HCW and an STM32L011G4U6, I'm stuck, transmission and reception work fine, but if I want to add an ID, it gets stuck, here are my two INI files, sorry for my English.

void RFM69_Init_RX(void) {
    uart_print("=== RFM69 CAPOT RX INIT (868MHz) ===\r\n");

    HAL_GPIO_WritePin(GPIOB, GPIO_PIN_3, GPIO_PIN_RESET);
    HAL_Delay(10);
    HAL_GPIO_WritePin(GPIOB, GPIO_PIN_3, GPIO_PIN_SET);
    HAL_Delay(50);

    RFM69_WriteReg(0x01, 0x04);        // Standby
    HAL_Delay(10);

    // === Fréquence 868 MHz ===
    RFM69_WriteReg(0x07, 0xD9);
    RFM69_WriteReg(0x08, 0x00);
    RFM69_WriteReg(0x09, 0x00);

    RFM69_WriteReg(0x11, 0x7F);        // Puissance max

    // Configuration Paquet
    RFM69_WriteReg(0x02, 0x00);        // Packet mode
    RFM69_WriteReg(0x03, 0x1A);
    RFM69_WriteReg(0x04, 0x0B);

    RFM69_WriteReg(0x2F, 0xAA);        // Sync Word
    RFM69_WriteReg(0x30, 0x55);

    RFM69_WriteReg(0x37, 0x00);        // Pas d'adressage

    RFM69_WriteReg(0x38, 9);           // Payload Length = 8 octets (suffisant pour "arm" et "off")

    RFM69_WriteReg(0x3C, 0x80);        // Clear FIFO
    RFM69_WriteReg(0x01, 0x10);        // Mode RX

    uart_print("CAPOT RX READY - En écoute (arm/off)\r\n");
}
and : void RFM69_Init_TX(void) {
    uart_print("=== RFM69 TELECOMMANDE INIT (868MHz) ===\r\n");

    HAL_GPIO_WritePin(GPIOB, GPIO_PIN_3, GPIO_PIN_RESET);
    HAL_Delay(10);
    HAL_GPIO_WritePin(GPIOB, GPIO_PIN_3, GPIO_PIN_SET);
    HAL_Delay(50);

    RFM69_WriteReg(0x01, 0x04);        // Standby
    HAL_Delay(10);

    // === Fréquence 868 MHz ===
    RFM69_WriteReg(0x07, 0xD9);
    RFM69_WriteReg(0x08, 0x00);
    RFM69_WriteReg(0x09, 0x00);

    RFM69_WriteReg(0x11, 0x7F);        // Puissance maximale

    RFM69_WriteReg(0x02, 0x00);        // Packet mode
    RFM69_WriteReg(0x03, 0x1A);        // Bitrate
    RFM69_WriteReg(0x04, 0x0B);

    RFM69_WriteReg(0x2F, 0xAA);        // Sync Word
    RFM69_WriteReg(0x30, 0x55);

    RFM69_WriteReg(0x37, 0x00);        // Pas d'adressage

    RFM69_WriteReg(0x38, 8);           // Payload Length max (on met 8, c'est suffisant pour "arm" et "off")





    uart_print("TELECOMMANDE RFM69 Initialized\r\n");
}

[Andrew Neil]

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@fanfan6966 wrote:

I have a custom PCB

You'll need to show the schematic, then - see: How to write your question to maximize your chances to find a solution

---

@fanfan6966 wrote:

with an RFM69HCW

You mean this: https://www.hoperf.com/modules/rf_transceiver/RFM69HCW.html ?

That's not an ST product, so you need to go to HopeRF for support with that:

https://www.hoperf.com/contact/

---

 wrote:

transmission and reception work fine

---

So your basic comms & connections must be OK; therefore unlikely to be anything to do with the STM32 itself.

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@fanfan6966 wrote:

 if I want to add an ID, it gets stuck,

---

What, exactly, does "stuck" mean here ?

Where, exactly, does it get "stuck" ?

What debugging have you done to find why it's "stuck" ?

[fanfan6966]

Hello, I know the problem isn't the STM32. When I say it's blocked, it has nothing to do with the STM32, but rather the code. By adding an ID, I no longer have any communication. The manufacturer doesn't respond, nor does their help site. I just thought that someone had probably programmed this type of module using STM32.