CW310 binaries built from OpenTitan master currenly not working

[vogelpi]

At the moment, binaries built for the CW310 board from OpenTitan master don't seem to work. I am not 100% sure what the root cause for this is. I suspect the main issue is that we changed the clock frequency for the CW310 some time ago to speed up TLT (see this PR lowRISC/opentitan#19479 or specifically commit lowRISC/opentitan@162cdab).

As a temporary workaround, we can use the ot-sca_2023-07-15_dd8b709_cw310 tag on my fork as a base (this is when I last updated CW310 bitstreams and binary): https://github.com/vogelpi/opentitan/releases/tag/ot-sca_2023-07-15_dd8b709_cw310

[vogelpi]

FYI @vrozic @wettermo

[vogelpi]

Now that we specify the capture window and offset in target clock cycles and dynamically change the sampling rate (#203), things are working again. The only thing that needs to change in the config is target_clk_mult variable. Previously it was 0.1, with new bitstreams it's 0.24. I've just tested this. What is left to do is to update the bitstreams and binaries. I will soon take care of this.

[vogelpi]

This has been finished with #212 .