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Verify slow in reply mode #20

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gicking opened this issue Dec 12, 2020 · 3 comments
Closed

Verify slow in reply mode #20

gicking opened this issue Dec 12, 2020 · 3 comments

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@gicking
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gicking commented Dec 12, 2020

Reading out and/or verifying data in "UART reply mode" is very slow over 2-wire interface. This is caused by a few ms latency for each byte which must be echoed by the PC. Using a FT232R, reading back 14kB takes ~5min
gicking added a commit that referenced this issue Dec 26, 2020
@gicking
added verify via CRC32 checksum
7cd542c 
- support re-synchronization after return from RAM routine
- add option verify via CRC32 checksum (see issue #20)
- add parameter to verify option for new CRC32 check
@gicking
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gicking commented Dec 26, 2020

Fixed via v1.4.2 and CRC32 verify option (32kB in 2.4s, 128kB in 4.9s). To use CRC32 check use option "-V 1"

@MarkStokes71
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Thank you, this should prove very valuable!

@gicking
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gicking commented Jan 9, 2021

Update v1.4.3 fixes an address conflict with STM8L low-density BL v1.0. RAM code now starts at 0x210. For technical details see https://github.com/gicking/stm8gal/blob/master/verify_CRC32/README.md

@gicking gicking closed this as completed Jan 9, 2021
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@gicking @MarkStokes71