Work with Alcor

before all take a look that

this is last Schematic from alcor

channel 2 is not used why? i dont know
but also tagaraz say in usbdev alcor 2014 not support l74 dual channel mode

may be new nand have a problem with dual channel

may be 1 time ask from nat27


i have 2 " K9LCG08U0A" and orginal brand and i know if i used in 2250 speed is a trash|! w=13 r=17

2251 famly in read speed kill my self i used toggle memory in 2267 but read speed is =23

so i dont like used my gook nand memory in this device

and i havent 2238 ,and i dont trust it1167b speed some time 30 ~25|~18

Finaly i will used new controller and leave 6987 or 6990


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i used old pcb

i think new pcb is not support dual channel

just interleaved mode

so i used 6987 pcb
i uploaded big to people see good

remove crystall and change r3=330 ohm to 630ohm

Description: [D:]USB Mass Storage Device(Parlag Extreme RAGE!)
Device Type: Mass Storage Device

Protocal Version: USB 2.00
Current Speed: High Speed
Max Current: 200mA

USB Device ID: VID = 8564 PID = 1000
Serial Number: 8F4A7678

Device Vendor: Parlag
Device Name: Extreme RAGE!
Device Revision: 0103

Manufacturer: Parlag
Product Model: Extreme RAGE!
Product Revision: 8.07

Controller Vendor: Alcor Micro
Controller Part-Number: SC908N/AU6989N — F/W 3406
Flash ID code: ECDED57A — Samsung K9LCG08U0A — 1CE/Dual Channel [MLC-8K] -> Total Capacity = 16GB

Tools on web:

Possible Flash Part-Number
— [1CE]K9LCG08U0A(27nm) x 1 pcs/Channel x 2 Channels

Flash ID mapping table
— [Channel 0] [Channel 1]
ECDED57A5843 ECDED57A5843
— — — — — —
used AlcorMP_v13.02.05.00

speed optimize
fast scan 1
and result is
before this i made

6986+micron l63 2ce /*2 channel =r 30 w18
6987+micron l63 2ce /*2 channel =r 30 w18
ite1167+micron l74/*2channel r=30 w=16

3257ena +toshiba toggle mlc 2ce interleaved=r34 w=19

2233+toshiba 43nm mlc 2ce */2channel =r=30 w=17

but never spped more than 20mb in usb 2

jet flash v600 also 6989n + spansion l74

look dear frinds spansion also used micron id but is cheaper and speed is lower

if u open the cover «fcg...»
so in jet flash v600 write speed is 16~18

thank you for reading this
Great job you are a teacher
ty dude, worked well with me
btw new PCB supports dual channel
my problim is:

Description: [P:]USB Mass Storage Device(Generic Flash Disk)
Device Type: Mass Storage Device

Protocal Version: USB 2.00
Current Speed: High Speed
Max Current: 100mA

USB Device ID: VID = 0001 PID = 7778
Serial Number: FD011BB4

Device Vendor: Generic
Device Name: Mass Storage
Device Revision: 0143

Manufacturer: Generic
Product Model: Flash Disk
Product Revision: 8.00

Chip Vendor: Alcor Micro
Chip Part-Number: AU6981 — F/W A100
Flash ID Code: — 1CE/Single Channel
Reference Product: ??:?U????????

Tools on web:

i use more mptool
FW burn OK.
but after Copy media files such as (mp3-mp4) on flash media file is corrupted.
hassan tell me flash id in alcor mp 2008 and i tell you flash ecc setting
Used old alcor mp 2008 or older version
Ecc 0 capacity optimize
Low level

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