Forum Discussion

AaduPeedusson's avatar
AaduPeedusson
Icon for New Contributor rankNew Contributor
2 years ago

Cyclone 10 LP active serial multi device configuration fails when more than one device in chain

Hi! I'm working on a custom PCB, which hosts three Cyclone 10 LP devices, arranged in accordance with the image below (from the Intel® Cyclone® 10 LP Core Fabric and General Purpose I/Os Handbook) ...
Configuration
WZ2's avatar
WZ2
Icon for Frequent Contributor rankFrequent Contributor
2 years ago

Hi there,

Your understanding has no problem. There are some points you need to care:

  1. Is the Configuration Voltage Standard 3.3V? I see the MSEL is 010.
  2. Is there a buffer added to your data path? Otherwise, the master's clk and data are not enough to drive the slave.

If the above conditions are met, you can further use the oscilloscope to capture the waveforms of DATA and Clk and ensure that the parameters of the waveforms meet the requirements in the datasheet.

Best regards,

WZ