questions about go into the interruption handle function

RE: questions about go into the interruption handle function

liuluan1984 — Thu, 17 Dec 2020 11:24:35 GMT

It is priority issue, now the problem has been fixed

RE: questions about go into the interruption handle function

liuluan1984 — Wed, 16 Dec 2020 17:10:27 GMT

I think both the IRQ priority are at 6

#ifndef GPIOTE_CONFIG_IRQ_PRIORITY
#define GPIOTE_CONFIG_IRQ_PRIORITY 6
#endif

#ifndef SPI_IRQ_PRIORITY
#define SPI_IRQ_PRIORITY 6
#endif

My guessing is the GPIO interruption conflicts with the SPI function, make the SPI stops working

I have tested also with IRQ priorities: SPI = 1, GPIOTE = 3, still same problem

RE: questions about go into the interruption handle function

liuluan1984 — Wed, 16 Dec 2020 16:39:26 GMT

Hi,

Here is the initial code for the interruption, I am not sure for the the priority level

static void interrupt_pin_init(void)
{
ret_code_t err_code;

err_code = nrf_drv_gpiote_init();
APP_ERROR_CHECK(err_code);

//nrf_drv_gpiote_out_config_t out_config = GPIOTE_CONFIG_OUT_SIMPLE(false);

//err_code = nrf_drv_gpiote_out_init(PIN_OUT, &out_config);
//APP_ERROR_CHECK(err_code);
//GPIOTE_CONFIG_IN_SENSE_LOTOHI //GPIOTE_RAW_CONFIG_IN_SENSE_LOTOHI
nrf_drv_gpiote_in_config_t in_config =GPIOTE_CONFIG_IN_SENSE_LOTOHI(true);// GPIOTE_CONFIG_IN_SENSE_TOGGLE(true);
in_config.pull = NRF_GPIO_PIN_PULLDOWN;//NRF_GPIO_PIN_PULLUP;

err_code = nrf_drv_gpiote_in_init(PIN_INTERRUPT, &in_config, in_pin_handler);
APP_ERROR_CHECK(err_code);

nrf_drv_gpiote_in_event_enable(PIN_INTERRUPT, true);

}

Here is the code for the spi init

void spi_init(void)
{
/* 初始化SPI0 */
nrf_drv_spi_config_t spi_config = NRF_DRV_SPI_DEFAULT_CONFIG;
spi_config.ss_pin = SPI_SS_PIN;//nRF52832只能使用GPIO作为片选，所以这个单独定义了SPI CS管脚
spi_config.miso_pin = SPI_MISO_PIN;
spi_config.mosi_pin = SPI_MOSI_PIN;
spi_config.sck_pin = SPI_SCK_PIN;
spi_config.frequency = NRF_DRV_SPI_FREQ_4M;
nrf_gpio_cfg_output(IMU_CS_M_PIN);
nrf_gpio_cfg_output(IMU_CS_AG_PIN);
nrf_gpio_cfg_output(IMU_POWER_PIN);

nrf_gpio_pin_set(IMU_CS_M_PIN);
nrf_gpio_pin_set(IMU_CS_AG_PIN);
nrf_gpio_pin_clear(IMU_POWER_PIN);
APP_ERROR_CHECK(nrf_drv_spi_init(&spi, &spi_config, spi_event_handler, NULL));
//nrf_delay_ms(600);
//nrf_gpio_pin_clear(IMU_POWER_PIN);

}

RE: questions about go into the interruption handle function

Jørgen Holmefjord — Wed, 16 Dec 2020 15:49:54 GMT

Which priority is the GPIOTE interrupt running at? If lsm9ds1_fifo_data_level_get have some blocking call waiting for a lower (or equal) priority event it will cause a deadlock/loop.

RE: questions about go into the interruption handle function

liuluan1984 — Wed, 16 Dec 2020 15:29:59 GMT

Hi,

When I run lsm9ds1_fifo_data_level_get without the interruption part, it works fine. I have tested this.

RE: questions about go into the interruption handle function

Jørgen Holmefjord — Wed, 16 Dec 2020 15:04:25 GMT

What happens inside lsm9ds1_fifo_data_level_get? Is the code stuck somewhere inside that function, or is there some error/HardFault?

RE: questions about go into the interruption handle function

liuluan1984 — Wed, 16 Dec 2020 14:04:24 GMT

Online liuluan1984 5 minutes ago

Hi, If I put lsm9ds1_fifo_data_level_get(&dev_ctx_imu, &unread_size); into the in_pin_handler(), the code will stuck, it will only print "I" of the printf("INTC\n");nrf_delay_ms(1);

If I remove the lsm9ds1_fifo_data_level_get(&dev_ctx_imu, &unread_size); , it will print out INTC from the printf("INTC\n");nrf_delay_ms(1);

RE: questions about go into the interruption handle function

Jørgen Holmefjord — Wed, 16 Dec 2020 12:56:19 GMT

Hi,

Is any of the code in read_out_FIFO_float() executed? The function call seems to be commented out from in_pin_handler(). If the function is executed, is DEBUG_FIFO_SIZE_INSIDE defined somewhere?

Best regards,
Jørgen