Forum Discussion
Andrewski
New Contributor
New ContributorCyclone V SoC Lockup
Are there any known issues that can cause the Cyclone V SOC to lockup on power up? We have a product where we are experience random boot failures in the field where the SOC appears to fail to boot. ...
EBERLAZARE_I_Intel
Regular Contributor
Regular ContributorHi,
Can you briefly explain on what was the step of the booting order that you used for testing?
Also, which document are you referring to? I may need to look it up.
AndrewskiNew Contributor
New ContributorHi,
- We have a Cyclone V SOC device, 5CSEBA5U23I7SN
- BSEL[2:0] = 111, The Boot Select pins are setup to boot from QSPI NOR and appear to be up and stable before POR. The HPS boots and then loads the FPGA.
- MSEL[4:0} value of 01010, Fast Power On
- We hold the HPS_nPOR signal low throughout the power up sequence and then an additional 100ms after the power up sequence. The clocks and power rails are stable by the point the HPS_nPOR signal is released.
- Documents I'm referencing are the Cyclone V Hard Processor System Technical Reference Manual, Cyclone V Device Handbook.
- Cyclone V Device Handbook indicates that you can power up the device in any order, and then gives you a table listing current transients at power on if you do not follow the recommended power up sequence.
- EBERLAZARE_I_Intel
Hi,
Can you provide the flash device part number that you use for booting?
Also, it would be helpful if you could provide the boot logs that was failing.
