Get stuck on while (! spi_xfer_done) when using spim

Question

Hi all, 
 I had a problem using the spim function of nrf52832 to drive st25r3911, and now I'm pretty sure it's the problem here in spi. 
 here is the code for transmission: 
 uint8_t nrf_spi_tx_rx(const uint8_t *txData, uint8_t *rxData, uint8_t len)
{
 uint8_t tx[256];
 uint8_t rx[256];
 
 if (txData != NULL)
 {
 memcpy(tx, txData, len);
 }

 spi_xfer_done = false;
 APP_ERROR_CHECK(nrf_drv_spi_transfer(&m_spi, tx, len, (rxData != NULL) ? rxData : rx, len));
 while (!spi_xfer_done)
 {
 }
 return 0;
} 
 and when st25r3911 triggers an interrupt, the following code is called: 
 void st25r3911Isr(void)
{
 st25r3911CheckForReceivedInterrupts();

if (NULL != st25r3911interrupt.callback)
 st25r3911interrupt.callback;
}

void st25r3911CheckForReceivedInterrupts(void)
{
 uint8_t iregs[ST25R3911_INT_REGS_LEN];
 uint32_t irqStatus;

ST_MEMSET(iregs, (uint8_t)ST25R3911_IRQ_MASK_ALL, ST25R3911_INT_REGS_LEN);

/* In case the IRQ is Edge (not Level) triggered read IRQs until done */
 while (platformGpioIsHigh(ST25R391X_INT_PIN))
 {
 st25r3911ReadMultipleRegisters(ST25R3911_REG_IRQ_MAIN, iregs, sizeof(iregs));

irqStatus = (uint32_t)iregs[0];
 irqStatus |= (uint32_t)iregs[1] << 8;
 irqStatus |= (uint32_t)iregs[2] << 16;
 /* forward all interrupts, even masked ones to application. */
 st25r3911interrupt.status |= irqStatus;
 }
}

void st25r3911ReadMultipleRegisters(uint8_t reg, uint8_t *val, uint8_t length)
{
#if !defined(ST25R391X_COM_SINGLETXRX)
 uint8_t cmd = (reg | ST25R3911_READ_MODE);
 uint8_t *tmp;
 
 tmp = (uint8_t *)malloc(sizeof(uint8_t) * (length + 1));
 /* Since the result comes one byte later, let's first transmit the adddress with discarding the result */
 // platformSpiTxRx(&cmd, NULL, ST25R3911_CMD_LEN);
 // platformSpiTxRx(NULL, val, length);
 platformSpiTxRx(&cmd, tmp, ST25R3911_CMD_LEN + length);
 ST_MEMCPY(val, &tmp[ST25R3911_CMD_LEN], length);
 free(tmp);

platformSpiDeselect();
 platformUnprotectST25R391xComm();
 return;
} 
 PlatformSpiTxRx () in the code is equivalent to nrf_spi_tx_rx (); 
 Then spi will send and receive data normally, but no other code will be executed when it is executed here, so it seems to be stuck in this place: 
 
 In addition, I used the logic analyzer to capture the data at this stage: 
 
 Where D4 is the interrupt signal, and the others from d0 to d3 are: cs,mosi,miso,clk; 
 As you can see from the data, after executing the 0x57 instruction, I received the data 0x028000 from miso, but then the program got stuck, and I couldn't find any reason.