[ESP32-H2] Can't use SPI with zigbee

[eitell]

Hi, I have a ESP-Thread BR & Zigbee GW development board that I'm using for a Zigbee project (it has a ESP32-H2 and a ESP32-S3).

I'm using the SPI connections already on the board to make the two SoCs communicate. The communication works fine, until I hit the part of the code where I start Zigbee. After that I get the following SPI-related error and the H2 resets:

assert failed: spi_slave_transmit spi_slave.c:432 (ret_trans == trans_desc)

AFAIK this is related to conflicts in the SPI queue and I know that Zigbee uses the flash, but shouldn't SPI0, SPI1 and SPI2 run independently?

I'm using this piece of code from ESP-IDF examples to initialize the SPI as slave on H2:

Code: Select all

    //Configuration for the SPI bus
    spi_bus_config_t buscfg;
    memset(&buscfg, 0, sizeof(buscfg));
    buscfg.mosi_io_num = GPIO_MOSI;
    buscfg.miso_io_num = GPIO_MISO;
    buscfg.sclk_io_num = GPIO_SCLK;
    buscfg.quadwp_io_num = -1;
    buscfg.quadhd_io_num = -1;
    buscfg.max_transfer_sz = 50000;

    //Configuration for the SPI slave interface
    spi_slave_interface_config_t slvcfg;
    memset(&slvcfg, 0, sizeof(slvcfg));
    slvcfg.spics_io_num = GPIO_CS;
    slvcfg.flags = 0;
    slvcfg.queue_size = 3;
    slvcfg.mode = 0;
    slvcfg.post_setup_cb = nullptr;
    slvcfg.post_trans_cb = nullptr;

    //Initialize SPI slave interface
    auto ret = spi_slave_initialize(SPI2_HOST, &buscfg, &slvcfg, SPI_DMA_CH_AUTO);

And later:

Code: Select all

    WORD_ALIGNED_ATTR uint8_t recvbuf[size];
    memset(recvbuf, 0, size);

    spi_slave_transaction_t t;
    memset(&t, 0, sizeof(t));

    t.length = sizeof(recvbuf) * 8;
    t.tx_buffer = nullptr;
    t.rx_buffer = recvbuf;

    auto timeout_ticks = timeout_ms / portTICK_PERIOD_MS;
    auto ret = spi_slave_transmit(SPI2_HOST, &t, timeout_ticks);

What am I missing here?

[ESP_Sprite]

Any possible concurrency issues? As in, is it possible for spi_slave_transmit to be simultaneously called in two tasks? (Eg. one in your main task, one in some Zigbee-related callback?)

[eitell]

No, I only have a single task using SPI. I double checked my callbacks and they seem to be fine. Right now they are pretty much a copy of the HA examples from ESP-IDF

[ESP_Sprite]

Any chance you can post your full code?