Work with Alcor
hi
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
However
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
LETS USED 6989n
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
However
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
LETS USED 6989n
19 комментариев
i think new pcb is not support dual channel
just interleaved mode
so i used 6987 pcb
speed optimize
ecc=12
fast scan 1
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
btw new PCB supports dual channel
FW burn OK.
but after Copy media files such as (mp3-mp4) on flash media file is corrupted.
Ecc 0 capacity optimize
Low level
you see I'd is not normal
solder again nand pin
you have hardware problem!
but soldering nand is unplugged