New Contributor
New ContributorWell, this is interesting. Enabling Real-Time ISP mode does allow it to verify (either with POF or JBC). But, the verify takes 5 minutes to complete! This is unacceptably long for a production environment. Normal verify on POF's for this same device (without verify protect) take about 20 seconds. Do you have any other ideas on how to address this?
New ContributorFurther updates:
- Switching to a USB-Blaster II improves the operation time significantly. It's now down to 15-30 seconds to verify instead of 5 minutes. The 5 minute time was achieved with an original USB-Blaster. 15-30 seconds is fine, but our production programming uses original USB-Blasters currently.
- Running a verify cycle using JBC file with Real-time ISP off does actually work without error, but still takes 5 minutes with original USB-Blaster. It seems you can do verify with POF only in real-time ISP, but with JBC it can be normal ISP or real-time ISP.
- As an aside, when using JBC file, a Program/Configure operation seems to also do a verify right after, though this does not occur when doing POF programming. I see this is part of the JBC file creation settings. (I have never used JBC file prior to now.) Combined JBC program & verify cycle using original USB-Blaster takes over 6 minutes!! Combined JBC cycle with USB-Blaster II is under 2 minutes.
