nRF52840 QSPI writing operation is overlapped

RE: nRF52840 QSPI writing operation is overlapped

Ben_nrf52840 — Mon, 15 Feb 2021 18:44:54 GMT

Hi Jorgen,

Thank you for your response and I've confirmed it is only happened with non-word aligned start address. It works as expected from 0xF0, 0xF4, 0xF8 and 0xFC. I have to make a workaround for other addresses.

Thanks again.

Regards,

Ben

RE: nRF52840 QSPI writing operation is overlapped

Jørgen Holmefjord — Mon, 15 Feb 2021 18:28:42 GMT

Hi,

According to the QSPI peripheral documentation, the READ.SRC/WRITE.DST registers must be Word-aligned, and the READ.CNT/WRITE.CNT registers must be a multiple of 4 bytes. 0xF2 is not word aligned, have you tested with all addresses between 0xF1 and 0xFF?

Best regards,
Jørgen