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limits to reprogramming VESCs

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wjpremerlani
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limits to reprogramming VESCs

Are there limits to how many times a VESC can be reprogrammed or how long I need to wait between updating the flash memory?

I have 3 VESCs that I am using for scientific research. 1 of them is working perfectly. However 2 of them no longer retain programming changes.

The two that failed did that at the exact same time when I was making several changes to the programming over a few minutes. The third one is fine.

The two that failed had been reprogrammed around 20 times.

I suspect that there is probably a minimum time required between programming changes.

wjpremerlani
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Last seen: 2 months 3 weeks ago
Joined: 2022-03-30 20:44
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This is an update...I decided to take a day off and not think about this issue.

When I came back, I was once again able to reprogram both of the VESCs that were previously giving me trouble.

My speculation is that the issue arose because perhaps repeated reprogramming of the flash memory over a short time window resulted in an accumulated trapped charge somewhere that needed time to dissipate.

 

wjpremerlani
Offline
Last seen: 2 months 3 weeks ago
Joined: 2022-03-30 20:44
Posts: 11

This is an update...I decided to take a day off and not think about this issue.

When I came back, I was once again able to reprogram both of the VESCs that were previously giving me trouble.

My speculation is that the issue arose because perhaps repeated reprogramming of the flash memory over a short time window resulted in an accumulated trapped charge somewhere that needed time to dissipate.