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no register access using SYSBIOS on C2000

Other Parts Discussed in Thread: SYSBIOS, TMS320F28335

Hi there,

I am quite new to SYSBIOS and C2000 development, so please forgive me if I have a kind of noobish question. Unfortunately I was not able to find a solution to my problem on the internet so far, so here it goes:

I am developing a real-time application on the TMS320F28335 (Experimenter-Kit). Additionally, I want to use the SYSBIOS-OS.

Now I set up a minimal program, which sets up SYSBIOS and starts a task. The task is being started very well - I have a breakpoint in the task-startup method and with the emulator I can see, that the DSP executes that method.

Whenever I try to access system registers - like for instance the ADCCTRL1, or the WDCR register - I perform EALLOW and then the register write, afterwards EDIS.

But nothing happens. Even when put the reg access before the BIOS_Start() call, nothing happens.

I tried doing the same minimal example without SYSBIOS (hence also without the task), and there it works just fine.