spi problem

[jerly]

Hi:

I use spi0(0x40003000) to wirte data to external flash(W25Q64) with SD8.0(sdk8.0.if I write data without sd, it is OK), and when program run to rx_data[number_of_txd_bytes]=(uint8_t)spi_base->RXD in spi_master.c.and program can't continue running normally. and if the SD make the mistake? or other reasons?

[Hung Bui]

@jerly: I can't find this code rx_data[number_of_txd_bytes]=(uint8_t)spi_base->RXD in our spi_master.c in SDK v8.0. I dont think reading spi_base->RXD would cause any trouble. Could you attach your code ?

spi_master.c

[jerly]

Hung.thank you for answer.i want to write and read data from external flash(W25Q64).i have test it with DK.the chip revision is N51422 QFACA1 1442AB