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Сергей



Joined: 26 Aug 2005
Posts: 18168

Flash-Extractor developer

PostPosted: Tue Mar 10, 2020 23:00    Post subject: RR for ad 3a 18 03
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First of all big thanks to JeremyB for finding this code!

Attention
I had to rewrite RR engine in FE
So some NR version is not compatible with FE versions now

This versions have old RR engine, and they are compatible:
Flash_Extractor_v6_890
NAND_Reader_v471

This versions have new RR engine, and they are compatible:
Flash_Extractor_v6_891
NAND_Reader_v472
But they do not have some old RR codes
Because i need memory chip samples to test this codes on them
I dont want to make errors in software

We have new approach:
Each memory chip have RR registers
Some have 1, some have 7 or different number

Test Retry rountine try write values from library to this registers
And choose combination that have more green sectors on ECC map

We have new routines:
Test Retry Tune - this routine will change value of each register from 0 to 0xff and find best conbination (where is more green sectors on ECC map)

Test Retry Random - this routine will write random values to RR registers. We have chance to find good combination. And then can use Tune to make it perfect

ad 3a 18 03
First of all use "Hynix v3" with Test Retry routine
Then take found value and use it with Test Retry Tune routine
Сергей



Joined: 26 Aug 2005
Posts: 18168

Flash-Extractor developer

PostPosted: Wed Mar 11, 2020 19:26    Post subject:
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If somebody have memory chips with next Retry commands

Hynix_v1 (+)
Hynix_v2
Samsung ec d7 98 ca (+)
Sandisk_98_3a_98_a3 (+)
Sandisk_98_3a_a8_92 (+)

Please, provide me access to them
I need check that codes work in new FE version
arvika



Joined: 18 Nov 2009
Posts: 1850
Location: Poland

PostPosted: Wed Mar 11, 2020 19:43    Post subject:
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Will prepare all.
Сергей



Joined: 26 Aug 2005
Posts: 18168

Flash-Extractor developer

PostPosted: Sun Mar 15, 2020 11:10    Post subject:
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Compatible versions:
Flash_Extractor_v6_892
NAND_Reader_v473
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