05-22-2017, 04:06 PM
According to the DTS mentioned above by @pfeerick, it shows "clock-frequency" at 100MHz.
Personally, I've never use SPI at such speed, I usually use 10MHz or 25MHz.
The mentioned project doesn't seems to be simple or trivial !
Also, I'm not sure is SPI DMA is present in longsleep kernel and this is probably an absolute requirement to do such capture.
Another solution would be to have it done using a FPGA with a DualPort SRAM, but this would be completely different approach ...
Personally, I've never use SPI at such speed, I usually use 10MHz or 25MHz.
The mentioned project doesn't seems to be simple or trivial !
Also, I'm not sure is SPI DMA is present in longsleep kernel and this is probably an absolute requirement to do such capture.
Another solution would be to have it done using a FPGA with a DualPort SRAM, but this would be completely different approach ...