Thank you Jason,
Do you know if the "read_dram()" function would work as well, or should
I stick to read()?
Franco
On 02/08/16 05:46, Jason Manley wrote:
Hi Franco
You've uncovered a weirdness with the tools: unlike most other blocks, for QDR
and DRAM the memory names are static, regardless of design hierarchy or block
names. And as you've discovered, the standard snapshot function expects to
retrieve the captured data from a contained bram memory.
For now, you'll probably want to manually read the dram memory with the normal
read() function. And you'll have to unpack it manually.
One possible (better) long-term solution might be to have the dram snapshot
block be identified with a different xps tag. Then casperfpga can tell it apart
and do this automatically for you.
Jason
On 01 Aug 2016, at 23:43, Franco Curotto <francocuro...@gmail.com> wrote:
Dear Casper Community,
I'm trying to use the snapshot block with the DRAM as storage medium to save
"instantaneous" spectra (in ROACH I).
I'm running into troubles when I try to read the snapshot, I used the function
"get_snapshot()", but I get an error when the snapshot tries to read the memory as:
"?read snapshot_bram
0 8192".
So apparently with that function I can only read the bram version of the
snapshot: then what is the correct way to read the data from DRAM-snapshot?
Sorry if this question is too basic.
Thanks,
Franco.
