Hello,
I’m now using VCP2 to decode data. The problem is I can’t get the results from
the decoder output buffer after successfully decoding the first batch of 86 LLR
data.
My procedure is as follows.
1. Power up VCP2 through PSC
2. Initialize VCP2 with instance A
3. Initialize EDMA3 with instance 2 and open two channels (10 as revt &
11 as xevt)
4. Retrieve 5 PaRAMs (0, 1 used for xevt, 2, 3 used for revt, and 4 for
dummy) and then the first batch of 86 LLR data.
5. Generate IC and configure EDMA for parameter setup
6. CSL_edma3HwChannelControl for both channels
(disable、clearerr、clear、enable)
7. Start VCP2
(VCP2_setPacked32Endian、VCP2_reset、VCP2_emuDisable、VCP2_start)
Through this procedure, I can get correct decoding results (NSYMPROC=112).
But, when I input the second batch of 40 LLR data and repeat procedure 5,
6, and 7, I got nothing.
I have checked the registers for VCP2.
The second batch of data was indeed written into the registers (VCPIC0~5),
WIC in VCPSTATO is 1, and NSYMPROC=66.
Looks like the decoder did its job, but I got nothing in the output
buffer.
Can someone help me out of this problem?
Best Regards,
Bob
