i2c_param_config(753): i2c clock choice is invalid, please check flag and frequency

[Yolnit]

Hello everybody,

I am working on a project where I need to do 2 things simultaniously. The first one is listening to a digital potentiometer (DP) in slave mode to get or set the wiper value. The other task is retrieving a raw data from a CAN (HX711) and corvert it into a weight value. I am using GPIO25 and 26 for the HX711 and >GPIO14 and 27 for the digital pot.

For now, both things are working well when separated, but here is the issue.

I am working with the hx711 library from https://github.com/UncleRus/esp-idf-lib ... 11/default
where the descriptor initialisation is has below

Code: Select all

esp_err_t hx711_init(hx711_t *dev)
{
    CHECK_ARG(dev);

    gpio_config_t conf = {
        .pin_bit_mask = BIT(dev->dout),
        .mode = GPIO_MODE_INPUT,
        .pull_up_en = 0,
        .pull_down_en = 0,
        .intr_type = GPIO_INTR_DISABLE
    };
    CHECK(gpio_config(&conf));

    conf.pin_bit_mask = BIT(dev->pd_sck);
    conf.mode = GPIO_MODE_OUTPUT;
    CHECK(gpio_config(&conf));

    CHECK(hx711_power_down(dev, false));

    return hx711_set_gain(dev, dev->gain);
}

For the digital potentiometers, am using AD5245 IC https://www.mouser.fr/datasheet/2/609/A ... 601824.pdf
and I am actually using a library from https://github.com/UncleRus/esp-idf-lib ... 02/default
with this initialisation setup

Code: Select all

esp_err_t ad5245_init_desc(i2c_dev_t *dev, uint8_t addr, i2c_port_t port, gpio_num_t sda_gpio, gpio_num_t scl_gpio)
{
    dev->port = port;
    dev->addr = addr;
    dev->cfg.sda_io_num = sda_gpio;
    dev->cfg.scl_io_num = scl_gpio;
#if HELPER_TARGET_IS_ESP32
    dev->cfg.master.clk_speed = I2C_FREQ_HZ;
#endif

    return i2c_dev_create_mutex(dev);
}

I have a IC_FREQ_HZ of 400kHz and I know I don't have the same for the hx711 device. Do I have to change the i2C frequency to match the IC with the smallest one?

The other issue is that when I try to run my software

Code: Select all

static void call_global_configuration_functions_system(i2c_dev_t *dev){

    fflush(stdout);
    initialization_test_phase(NULL);    //Call the UART initialization communication function and the setting GPIO functions.
    spiffs_config();                //Initialization of the partitions
    //Initialization of I2C communication for the HX711s
    ESP_ERROR_CHECK(hx711_init(&hx711_dev)); 
    // Init i2cdev library
    ESP_ERROR_CHECK(i2cdev_init()); 
    first_use_potentiometer(&dev);
    // timer_creation(&timer_handler_wait_before_starting,false, &check_first_conf,3000);    //Don't send anything if timer isn't deleted
}

where

Code: Select all

esp_err_t first_use_potentiometer(i2c_dev_t *dev){
    //Initialization of the other I2C bus
    ESP_ERROR_CHECK(ad5245_ready_to_use(&dev,AD5245_ADDR_0)); 
    // Read wiper position of driving motor
    ESP_ERROR_CHECK(ad5245_get_wiper_pos(&dev,pot_positions.driving_pot));
    // Write wiper position of driving motor
    ESP_ERROR_CHECK(ad5245_set_wiper_pos(&dev,ZERO_POS,true));
    //Free the buffer
    ESP_ERROR_CHECK(ad5245_free_desc(&dev));

I first call the hx711 initilization then the descriptor for the DP and set to 0 the wiper position. But I get this log :

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I (27) boot: ESP-IDF v5.0.6-dirty 2nd stage bootloader
I (27) boot: compile time 15:11:35
I (27) boot: Multicore bootloader
I (31) boot: chip revision: v3.0
I (35) boot.esp32: SPI Speed      : 40MHz
I (39) boot.esp32: SPI Mode       : DIO
I (44) boot.esp32: SPI Flash Size : 4MB
I (49) boot: Enabling RNG early entropy source...
I (54) boot: Partition Table:
I (57) boot: ## Label            Usage          Type ST Offset   Length
I (65) boot:  0 nvs              WiFi data        01 02 00009000 00006000
I (72) boot:  1 phy_init         RF data          01 01 0000f000 00001000
I (80) boot:  2 factory          factory app      00 00 00010000 00100000
I (87) boot:  3 storage          Unknown data     01 82 00110000 00100000
I (95) boot: End of partition table
I (99) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=0d934h ( 55604) map
I (127) esp_image: segment 1: paddr=0001d95c vaddr=3ffb0000 size=01fb4h (  8116) load
I (131) esp_image: segment 2: paddr=0001f918 vaddr=40080000 size=00700h (  1792) load
I (134) esp_image: segment 3: paddr=00020020 vaddr=400d0020 size=2df78h (188280) map
I (210) esp_image: segment 4: paddr=0004dfa0 vaddr=40080700 size=0dc90h ( 56464) load
I (240) boot: Loaded app from partition at offset 0x10000
I (240) boot: Disabling RNG early entropy source...
I (252) cpu_start: Multicore app
I (252) cpu_start: Pro cpu up.
I (252) cpu_start: Starting app cpu, entry point is 0x40081388
0x40081388: call_start_cpu1 at C:/Users/CorentinLEROY/esp/v5.0.6/esp-idf/components/esp_system/port/cpu_start.c:147

I (242) cpu_start: App cpu up.
I (270) cpu_start: Pro cpu start user code
I (270) cpu_start: cpu freq: 160000000 Hz
I (270) cpu_start: Application information:
I (275) cpu_start: Project name:     mybrouette
I (280) cpu_start: App version:      2462eed-dirty
I (286) cpu_start: Compile time:     Sep  4 2024 11:26:37
I (292) cpu_start: ELF file SHA256:  8122a54156b85591...
I (298) cpu_start: ESP-IDF:          v5.0.6-dirty
I (303) cpu_start: Min chip rev:     v0.0
I (308) cpu_start: Max chip rev:     v3.99 
I (313) cpu_start: Chip rev:         v3.0
I (318) heap_init: Initializing. RAM available for dynamic allocation:
I (325) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (331) heap_init: At 3FFB2C20 len 0002D3E0 (180 KiB): DRAM
I (337) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (343) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (350) heap_init: At 4008E390 len 00011C70 (71 KiB): IRAM
I (357) spi_flash: detected chip: generic
I (361) spi_flash: flash io: dio
W (365) spi_flash: Detected size(16384k) larger than the size in the binary image header(4096k). Using the size in the binary image header.
I (379) app_start: Starting scheduler on CPU0
I (383) app_start: Starting scheduler on CPU1
I (383) main_task: Started on CPU0
I (393) main_task: Calling app_main()
I (393) gpio: GPIO[16]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
I (403) gpio: GPIO[17]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
I (413) gpio: GPIO[15]| InputEn: 0| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:0 
I (543) gpio: GPIO[26]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
I (543) gpio: GPIO[25]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0 
Value of ADDR : 45
E (563) i2c: i2c_param_config(753): i2c clock choice is invalid, please check flag and frequency
ESP_ERROR_CHECK failed: esp_err_t 0x102 (ESP_ERR_INVALID_ARG) at 0x400d7572
0x400d7572: ad5245_ready_to_use at C:/Users/CorentinLEROY/Documents/Brouette/Code/mybrouette/components/ad5245/ad5245.c:128 (discriminator 1)

file: "./components/ad5245/ad5245.c" line 128
func: ad5245_ready_to_use
expression: ad5245_init(&dev)

abort() was called at PC 0x400874f3 on core 0
0x400874f3: _esp_error_check_failed at C:/Users/CorentinLEROY/esp/v5.0.6/esp-idf/components/esp_system/esp_err.c:47

So i decided to check the ad5245_init function that is here

Code: Select all

esp_err_t ad5245_ready_to_use(i2c_dev_t *dev, uint8_t address){
    
    // Zero device descriptor
    memset(&dev, 0, sizeof(dev));

    // Initialize i2c device descriptor
    printf("Value of ADDR : %d\n\r", address);
    ESP_ERROR_CHECK(ad5245_init_desc(&dev, address,0, CONFIG_EXAMPLE_I2C_MASTER_SDA, CONFIG_EXAMPLE_I2C_MASTER_SCL));

    // Initialize potentiometer
    ESP_ERROR_CHECK(ad5245_init(&dev));
    
    return ESP_OK;
}

And I don't understand which frequency set the ad5245 descriptor configuration. I don't think the issue has something to deal with any king of flag, but I am not really sure.

I am using a ESP32E for this project. I can assure that separated, both devices work fine.

Thank by advance.