SPI Example?

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originally posted by kedimike@Jan 25 2006, 08:23 AM

leslie

i found that the function above has a problem,

void spi_tx_char(int tx_data, long spi_dac_addr)

for the parameter of " long spi_dac_addr" if i use it such as 0x008200,the programe can run ,but if i use it such as spi_0_base,the programe cann't run,why?

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Probably because I seem to have pasted the wrong file. I will double-check on Monday to be sure that I pasted one where the subroutine is correct.

SPI_0_BASE is the base address of an spi core named spi_0. Find out what you called yours in SOPC builder or look for the name of it in system.h.

To transmit data of 0xaaaa out through spi_0:

mydata = 0xaaaa;

spi_tx_char(mydata, SPI_0_base);

This is simplistic. It doesn&#39;t check for errors.