2026-05-06 10:26 AM
Hi,
this one is similar to
but not the same. While testing OSPI1 on our MP257 board and our FSBL I found that
MSEL in OCTOSPI1->CR is ignored.
CSSEL and DMM are honored and works as expected but when DMM=0 then output signals
are the same on both IO[3:0] and IO[7:4].
Attached is analyzer output of CLK,CS,IO0,IO4 for transaction with relevant regs:
0x50430000: 00000f01
0x50430100: 04002101
AR was 0xfa0000 and 8 bytes was sent to DR.
Martin