Why do I get errors when trying to do DMA transfers to or from the ROM bank of ML67400x/ML67500x ARM MCUs?
Descriptive Answer:
The DMA Controller (DMAC) in ML67400x/ML67500x was designed not to be able to access the external ROM bank of the MCUs. This design was carried out so as to maximize the performance efficiency of the ROM bank.
This limitation is noted in the DMA chapter of the User's Manual in section: "Important Usage Notes".
This limitation is noted in the DMA chapter of the User's Manual in section: "Important Usage Notes".
