Sorry, you need to enable JavaScript to visit this website.

No FMC pin signals via FMC CC Gen2

Unsolved
2 posts / 0 new
nocturnalpea's picture
nocturnalpea
Junior(0)
No FMC pin signals via FMC CC Gen2

Hi,
I'm having some debugging issues in testing my bit-bang SPI signals coming out through the FMC and am hoping someone might be able to point me in the right direction to debug this.
I currently have my Vivado hardware set up to use the AXI GPIO as well as the GPIO via PS7 (EMIO). The PS7 GPIO is configured to route out SPI signals (SS/SCLK/MOSI) through the JB PL PMOD connection (bit-bang). I tested it - it works.
For the AXI-GPIO, I've also written up a bit-bang SPI code and it works - routed out to the JA PL PMOD connector. Tested and it works.
Seeing that the software side of things is working, I then reconfigured the AXI-GPIO IP to send the signals through the FMC (G12/G13/G15) pins (ie Picozed 7030: C1/D1/F7), However, I'm not able to measure any signals coming out of the FMC pins. The constraints were planned: LVCMOS 18, 1.8V, Drive Strength 16, FP_VTT_50.
Any ideas?
Thank you.
 
Regards,
R.
 

JFoster's picture
JFoster
Moderator(48)
Hello R,

Hello R,

Could you please share your constraints?

Just copy and paste them please.

--Josh