ask about this BUG the SPIM: An additional byte is clocked out when RXD.MAXCNT = 1

[victor_CHINA]

Dear nordic employee

when I use the spim to send 1 byte address to read it's value(4 bytes)

nrf_drv_spi_transfer(&spi,headerBuffer,(uint8_t)headerLength,readBuffer,(uint8_t)readlength);    headerLength=1;      readlength=4;

I get the problem like the title says

I try to solve it

so I DO like this ：spi_pan58_workaround_sdk12.zip（which Referred here）

but when I try to read 4byte data（with 1 byte address write），the result is 00 00 00 00（it should be 12 02 33 44 ）

where is wrong ？

thank you！

[Sigurd]

Hi,

• What SDK version are you using ?
• What was the result of the read operation before you added the workaround ? Did you get 00 00 00 00 before you added the workaround also? or did you get something else?

[Sigurd]

In the example in the SDK, the spi_event_handler is used to set the spi_xfer_done flag to true.