Bitband Access From M0A/M0S

[lpcware]

Content originally posted in LPCWare by sgstreet on Thu Jan 28 14:25:39 MST 2016
Hi All,

Has anyone successfully accessed the bitband regions 0x22000000 or 0x42000000 from either the M0APP or the M0SUB cores on a LPC43xx?  From the memory map it looks like these regions are accessible by all cores, but I'm getting a hard fault on M0APP core trying to access the bitband regions.

Stephen

[lpcware]

Content originally posted in LPCWare by starblue on Thu Feb 18 09:38:20 MST 2016
I don't think the M0s support bit banding.

Note that "3.3.2 Bit banding" in the user manual only mentions the Cortex-M4, unfortunately it doesn't say anything definitive about the M0s.

Also, as such the Cortex-M0 core doesn't support bit banding. From a quick search there seems to be an "AHB bit-band wrapper", but I don't think it is implemented on the LPC43xx.