Part Number: CCSTUDIO-KEYSTONE
Tool/software: Code Composer Studio
HI, TI experts,
CCS 7. 4 SOC,TDA2eg-17
when I debug dsp edma, I found CCS can't read EDMA registers. It is alway 0.
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Part Number: CCSTUDIO-KEYSTONE
Tool/software: Code Composer Studio
HI, TI experts,
CCS 7. 4 SOC,TDA2eg-17
when I debug dsp edma, I found CCS can't read EDMA registers. It is alway 0.
Hi,
According to the device's TRM, I can tell the addresses of the registers are in the correct place.
In this case, CCS may be unable to read memory mapped registers in the conditions mentioned in the post below:
https://e2e.ti.com/support/tools/ccs/f/81/p/900857/3330666#3330666
If none of these options apply to your case, can you be sure there is no memory management or protection mechanism in place? This may prevent accessing the specific addresses as they are remapped to other regions.
I will try to find additional scenarios and report back in case I find anything relevant.
Hope this helps,
Rafael
Rafael,
thanks for reply.
I have read the link you supplied. I have no these condition, because my code worked well ,dsp edma worked well. just can't read these registers from CCS.
In addtion, I used "ti-processor-sdk-rtos-automotive-dra7xx-evm-04.03.00.05" sdk, and DSP run sys/bios OS. the demo code is apart of EDMA_LLD.
Hi,
Unfortunately I don't have the same board as you, but I am trying to find an example that uses EDMA on the C66x DSP for my AM574x IDK.
At this time I see the same as you (all zeros on the registers), but I need to figure out the example first.
Regards,
Rafael
Hi,
I could not create a testcase yet that modifies the addresses you show, but I see the Memory Browser shows data at 0x01D10000 location as shown in the screen below:
In this case, I can't yet see if there is a problem itself with the Memory Browser. However, there is a secondary issue with the Registers view (no data is showing properly) and we are analyzing this.
Regards,
Rafael