I have some problems with using MQX4.2, my program is often stuck

[wyflsxy]

hello everybody,

I have some problems with using MQX4.2, my program is often stuck in the following code in idletask.c

"

    while (1) {

#if !defined(MQX_ENABLE_IDLE_LOOP) || MQX_ENABLE_IDLE_LOOP

        if (++kernel_data->IDLE_LOOP.IDLE_LOOP1 == 0) {

            if (++kernel_data->IDLE_LOOP.IDLE_LOOP2 == 0) {

                if (++kernel_data->IDLE_LOOP.IDLE_LOOP3 == 0) {

                ++kernel_data->IDLE_LOOP.IDLE_LOOP4;

                }

            }

        }

#endif /* !defined(MQX_ENABLE_IDLE_LOOP) || MQX_ENABLE_IDLE_LOOP */

"

it looks like the task scheduling problems, but when I only have one main_task, and then  I was in the debug I2C

it was stuck there, could anybody know what's the problem?

[soledad]

Hi,

Are you using a custom board? I've seeing this issue when the board has a hardware problems for example bad clock configurations  or bad jumper configuration.

Are you using interrupts??

Could you please share the code in order to reproduce the issue?

Have a great day,
Sol

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[wyflsxy]

Hello, my application will not be stuck in there by now, but the question  is  the I2C waveform is always the same now,when I used the function of I2C_DRV_MasterSendDataBlocking (chan, & device, NULL, 0, pdata, 1, 200);  no matter how do I change the value of the pdata,the waveform of I2C was same,the SDA line only have the start and stop bits, middle of it was full of zero

I think the board is no problem, I have try the custom board of frdmk64f and my own board, there have the same problem In MQX4.2 with KSDK1.2 on kds3.0

my code is below,did I have some wrong with it,and when I use the example of "i2c_blocking_master_example_frdmk64f",the waveform is same,I don't know what's wrong with it

Oscilloscope test out the waveform as shown, when I change the value sent about pdata,the  wave is same as the photo

void main_task( task_param_t init_data ){

    _task_id                 rx_tid;

    _task_id                 tx_tid;

    TASK_PARAMS              task_p = {0};

    uint8_t result = 0;

    uint8_t temp;

    hardware_init();

    OSA_Init();

    button_init();

    i2c_init(0);

    uint8_t i;

    uint8_t length = 10;

    uint8_t data[length];

    for(i = 0;i<length;i++){

    data[i] = i;

    }

    while(1){

    i2c_sendbuf(0,data,length);

    _time_delay(5);

    };

}

_WEAK_FUNCTION(void hardware_init(void)) {

    uint8_t i;

    /* enable clock for PORTs */

    for (i = 0; i < PORT_INSTANCE_COUNT; i++)

    {

      CLOCK_SYS_EnablePortClock(i);

    }

    /* Init board clock */

    BOARD_ClockInit();

    /* In case IO sub is turned off, dbg console should be used for printing */

#if !BSPCFG_ENABLE_IO_SUBSYSTEM

    dbg_uart_init(); //wangyufei

#endif

}

void i2c_init(uint8_t chan){

    uint32_t i = 0;

    // i2c master state

    i2c_master_state_t master;

    // i2c device configuration

    configure_i2c_pins(0);

    configure_i2c_pins(1);

    // Initialize i2c master

    I2C_DRV_MasterInit(0, &master);

    I2C_DRV_MasterInit(1, &master);

}

int i2c_sendbuf(uint8_t chan,uint8_t *data,uint8_t length)

{

    uint32_t i = 0;

    i2c_status_t status1;

    uint8_t pdata[10];

    for(i = 0; i < DATA_LENGTH; i++)

    {

        txBuff[i] = i + 1;

    }

    uint8_t result;

    for(i = 0;i<10;i++)

    pdata[i] = i+3;

    pdata[0] = 0x80;

    pdata[1] = 0xF3;

    result = I2C_DRV_MasterSendDataBlocking(chan, &device,

                        pdata, 1,pdata, 2, 200);

        // Delay to wait slave received data

    OSA_TimeDelay(10);

    // _time_delay(5);

    pdata[0] = 0x81;

    result = I2C_DRV_MasterSendDataBlocking(chan, &device,

                        pdata, 1,pdata, 1, 200);

    // Clear rxBuff

    for(i = 0; i < count; i++)

    {

        rxBuff[i] = 0;

    }

    // Master receives count byte data from slave

    result = I2C_DRV_MasterReceiveDataBlocking(chan, &device,

                                              NULL, 0, rxBuff, 1, 200);

    OSA_TimeDelay(5);

}