NO FMC_SDNCAS alternate function info in

[sheng yang]

I want to design a baord with stm32h7b0zbt6 with extranal sdram chip W9825G6KH-6. I get PG15 with FMC_SDNCAS alt func in datasheet as below:

But when I looked the PG15 alt func config I get as below info, I could not found an alternate function number for FMC_SDNCAS here ?? why they are not consistent ?

[Tesla DeLorean]

Yes, the H743 document looks to be more internally consistent.

https://www.st.com/resource/en/datasheet/stm32h743vi.pdf

But given the constant musical chairs and incremental changes in the design and muxing it's important to get correct.

The H7Bx has OCTOSPI, the H74x has QUADSPI, I'm pretty sure pin and AF assignments moved/changed to the point that drivers/loaders coded for one H7 don't work on another.

For FMC pay attention to PG12 thru PG15 the H7Bx RM missed these too.

[mƎALLEm]

Thank you for the clarification. 

I'm raising the remaining issues to be fixed.

PG12 - FMC_NE4 - AF12

PG13 - FMC_A24 - AF12

PG14 - FMC_A25 - AF12

[mƎALLEm · Accepted solution]

Hello,

Here the full list of PG port AF12 mapping :

PG0 - AF12 - FMC_A10
PG1 - AF12 - FMC_A11
PG2 - AF12 - FMC_A12
PG3 - AF12 - FMC_A13
PG4 - AF12 - FMC_A14/FMC_BA0
PG5 - AF12 - FMC_A15/FMC_BA1
PG6 - AF12 - FMC_NE3
PG7 - AF12 - FMC_INT
PG8 - AF12 - FMC_SDCLK
PG9 - AF12 - FMC_NE2/FMC_NCE
PG10 - AF12 - FMC_NE3
PG11 - AF12 - N/A
PG12 - AF12 - FMC_NE4
PG13 - AF12 - FMC_A24
PG14 - AF12 - FMC_A25
PG15 - AF12 - FMC_NCAS

The document will be updated in the next revisions.