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TMS320F28335: DMA register not writeable

Part Number: TMS320F28335
Other Parts Discussed in Thread: C2000WARE

Hello,

I'm trying to add DMA transfer from ADC to RAM to implement oversampling in my application. However, I'm having trouble getting it to work because it seems that none of the DMA registers are being written by my code.

All write operations are done between the EALLOW and EDIS statements.

The initialization code I'm using is directly from the examples, specifically DSP2833x_DMA.c.

What I don't understand is that I can't modify the values of the registers from CCS debug connected through JTAG, either  from the Registers window, or the Expression window.

I believe I must be missing something simple, but I'm currently stuck.

Thanks