Why remap?

[rozehtiyan]

Posted on August 19, 2014 at 14:43

Why remap?

#stm32f103-spi-remapping #rtfm

[Andrew Neil]

Posted on August 19, 2014 at 16:12

It's just a way to let you choose a different set of pins for the peripheral functions - for the convenience of your PCB design and/or to avoid conflicts with other peripheral functions.

Look at the chip datasheet for details...

[Tesla DeLorean]

Posted on August 19, 2014 at 16:18

Or more specifically the Reference Manual

Although the pins you are using shouldn't need remapping, and you failed to enable the AFIO peripheral clock to permit the remap to work.

[rozehtiyan]

Posted on August 19, 2014 at 19:19

Thanks guys,

Then my guss was correct about remap. but I still don't know why he/she has used remap?

[Tesla DeLorean]

Posted on August 19, 2014 at 20:34

but I still don't know why he/she has used remap?

I have no idea where you lifted the code from either, people tend to post code here they have problems with, or are a random hodge-podge of cut-n-paste from other similar examples, basically throwing mud at a wall hoping some will stick?