driver_sx1262_cad_test.c

Go to the documentation of this file.

 
#include "driver_sx1262_cad_test.h"
 
static sx1262_handle_t gs_handle;        

uint8_t sx1262_cad_test_irq_handler(void)
{
    if (sx1262_irq_handler(&gs_handle) != 0)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}

uint8_t sx1262_cad_test(void)
{
    uint8_t res;
    uint32_t reg;
    uint8_t modulation;
    uint8_t config;
    sx1262_bool_t enable;
    
    /* link interface function */
    DRIVER_SX1262_LINK_INIT(&gs_handle, sx1262_handle_t);
    DRIVER_SX1262_LINK_SPI_INIT(&gs_handle, sx1262_interface_spi_init);
    DRIVER_SX1262_LINK_SPI_DEINIT(&gs_handle, sx1262_interface_spi_deinit);
    DRIVER_SX1262_LINK_SPI_WRITE_READ(&gs_handle, sx1262_interface_spi_write_read);
    DRIVER_SX1262_LINK_RESET_GPIO_INIT(&gs_handle, sx1262_interface_reset_gpio_init);
    DRIVER_SX1262_LINK_RESET_GPIO_DEINIT(&gs_handle, sx1262_interface_reset_gpio_deinit);
    DRIVER_SX1262_LINK_RESET_GPIO_WRITE(&gs_handle, sx1262_interface_reset_gpio_write);
    DRIVER_SX1262_LINK_BUSY_GPIO_INIT(&gs_handle, sx1262_interface_busy_gpio_init);
    DRIVER_SX1262_LINK_BUSY_GPIO_DEINIT(&gs_handle, sx1262_interface_busy_gpio_deinit);
    DRIVER_SX1262_LINK_BUSY_GPIO_READ(&gs_handle, sx1262_interface_busy_gpio_read);
    DRIVER_SX1262_LINK_DELAY_MS(&gs_handle, sx1262_interface_delay_ms);
    DRIVER_SX1262_LINK_DEBUG_PRINT(&gs_handle, sx1262_interface_debug_print);
    DRIVER_SX1262_LINK_RECEIVE_CALLBACK(&gs_handle, sx1262_interface_receive_callback);
    
    /* start cad test */
    sx1262_interface_debug_print("sx1262: start cad test.\n");
    
    /* init the sx1262 */
    res = sx1262_init(&gs_handle);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: init failed.\n");
       
        return 1;
    }
    
    /* enter standby */
    res = sx1262_set_standby(&gs_handle, SX1262_CLOCK_SOURCE_XTAL_32MHZ);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set standby failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* disable stop timer on preamble */
    res = sx1262_set_stop_timer_on_preamble(&gs_handle, SX1262_BOOL_FALSE);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: stop timer on preamble failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set dc dc ldo */
    res = sx1262_set_regulator_mode(&gs_handle, SX1262_REGULATOR_MODE_DC_DC_LDO);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set regulator mode failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set +17dBm power */
    res = sx1262_set_pa_config(&gs_handle, 0x02, 0x03);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set pa config failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* enter to stdby rc mode */
    res = sx1262_set_rx_tx_fallback_mode(&gs_handle, SX1262_RX_TX_FALLBACK_MODE_STDBY_XOSC);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set rx tx fallback mode failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set dio irq */
    res = sx1262_set_dio_irq_params(&gs_handle, 0x03FF, 0x03FF, 0x0000, 0x0000);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set dio irq params failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* clear irq status */
    res = sx1262_clear_irq_status(&gs_handle, 0x03FF);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: clear irq status failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set lora mode */
    res = sx1262_set_packet_type(&gs_handle, SX1262_PACKET_TYPE_LORA);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set packet type failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* +17dBm */
    res = sx1262_set_tx_params(&gs_handle, 17, SX1262_RAMP_TIME_10US);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set tx params failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* sf9, 125khz, cr4/5, disable low data rate optimize */
    res = sx1262_set_lora_modulation_params(&gs_handle, SX1262_LORA_SF_9, SX1262_LORA_BANDWIDTH_125_KHZ, 
                                            SX1262_LORA_CR_4_5, SX1262_BOOL_FALSE);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set lora modulation params failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* convert the frequency */
    res = sx1262_frequency_convert_to_register(&gs_handle, 480100000, (uint32_t *)&reg);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: convert to register failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set the frequency */
    res = sx1262_set_rf_frequency(&gs_handle, reg);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set rf frequency failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set base address */
    res = sx1262_set_buffer_base_address(&gs_handle, 0x00, 0x00);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set buffer base address failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* 1 lora symb num */
    res = sx1262_set_lora_symb_num_timeout(&gs_handle, 0);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set lora symb num timeout failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* reset stats */
    res = sx1262_reset_stats(&gs_handle, 0x0000, 0x0000, 0x0000);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: reset stats failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* clear device errors */
    res = sx1262_clear_device_errors(&gs_handle);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: clear device errors failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set the lora sync word */
    res = sx1262_set_lora_sync_word(&gs_handle, 0x1424);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set lora sync word failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* get tx modulation */
    res = sx1262_get_tx_modulation(&gs_handle, (uint8_t *)&modulation);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: get tx modulation failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    modulation |= 0x04;
    
    /* set the tx modulation */
    res = sx1262_set_tx_modulation(&gs_handle, modulation);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set tx modulation failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set the rx gain */
    res = sx1262_set_rx_gain(&gs_handle, 0x94);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set rx gain failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set the ocp */
    res = sx1262_set_ocp(&gs_handle, 0x38);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set ocp failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* get the tx clamp config */
    res = sx1262_get_tx_clamp_config(&gs_handle, (uint8_t *)&config);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: get tx clamp config failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    config |= 0x1E;
    
    /* set the tx clamp config */
    res = sx1262_set_tx_clamp_config(&gs_handle, config);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set tx clamp config failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set cad params */
    res = sx1262_set_cad_params(&gs_handle, SX1262_LORA_CAD_SYMBOL_NUM_2,
                                24, 10, SX1262_LORA_CAD_EXIT_MODE_ONLY,
                                0);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: set cad params failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* run the cad */
    res = sx1262_lora_cad(&gs_handle, &enable);
    if (res != 0)
    {
        sx1262_interface_debug_print("sx1262: lora cad failed.\n");
        (void)sx1262_deinit(&gs_handle);
        
        return 1;
    }
    
    /* output the result */
    if (enable == SX1262_BOOL_TRUE)
    {
        sx1262_interface_debug_print("sx1262: cad detected.\n");
    }
    else
    {
        sx1262_interface_debug_print("sx1262: cad not detected.\n");
    }
    
    /* finish cad test */
    sx1262_interface_debug_print("sx1262: finish cad test.\n");
    
    /* deinit */
    (void)sx1262_deinit(&gs_handle);
    
    return 0;
}