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MRT 2140 vs 2130 Seagate ROM read speed in serial BOOT MODE
http://forum.hddguru.com/viewtopic.php?f=28&t=38857
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Author:  michael chiklis [ September 4th, 2019, 6:42 ]
Post subject:  MRT 2140 vs 2130 Seagate ROM read speed in serial BOOT MODE

I'm still using version 2130, i noticed a speed bug when reading and writing seagates rom in serial boot mode.
If i choose 460800 as baud rate, it ignores it and uses default 38400 speed.

As someone of you noticed the same bug on last 2140 version?

Author:  Jirbun [ September 4th, 2019, 18:19 ]
Post subject:  Re: MRT 2140 vs 2130 Seagate ROM read speed in serial BOOT M

In which model this happened ?
I have never encountered this problem in 2130.
Try to clean com pinout,and bend the inner two pins a bit so it sure touch MRT connector.

Author:  michael chiklis [ September 6th, 2019, 7:54 ]
Post subject:  Re: MRT 2140 vs 2130 Seagate ROM read speed in serial BOOT M

I've countered this issue on Granada drive (ST2000DM001-9YN164 pcb 100664987).
I'll clean com contacts and try again, but don't think is that the problem.

Author:  michael chiklis [ September 6th, 2019, 8:42 ]
Post subject:  Re: MRT 2140 vs 2130 Seagate ROM read speed in serial BOOT M

I cleaned my com, still same speed issue so it's definitely a bug.
I posted a video:
https://www.youtube.com/watch?v=k4hsK7mvICQ&t=4s

P.S.
I tried with old 170705 version, speed is fast. So 2130 has speed bug and very likely also last 2140 version.
Check it !!!

Author:  Amarbir[CDR-Labs] [ September 7th, 2019, 14:07 ]
Post subject:  Re: MRT 2140 vs 2130 Seagate ROM read speed in serial BOOT M

michael chiklis wrote:
I cleaned my com, still same speed issue so it's definitely a bug.
I posted a video:
https://www.youtube.com/watch?v=k4hsK7mvICQ&t=4s

P.S.
I tried with old 170705 version, speed is fast. So 2130 has speed bug and very likely also last 2140 version.
Check it !!!



Hi ,
I will cross check and let you know ,I have posted a video on my youtube channel about the spyglass headmap bug i am also posting it in hddguru

Author:  michael chiklis [ September 7th, 2019, 14:46 ]
Post subject:  Re: MRT 2140 vs 2130 Seagate ROM read speed in serial BOOT M

Amarbir, i'm watching your video now on youtube :)
Please, let me know about seagate bug posted here, thank you.

Author:  Amarbir[CDR-Labs] [ September 7th, 2019, 14:53 ]
Post subject:  Re: MRT 2140 vs 2130 Seagate ROM read speed in serial BOOT M

michael chiklis wrote:
Amarbir, i'm watching your video now on youtube :)
Please, let me know about seagate bug posted here, thank you.


Well,
Not Only This They Struck a deal with me and now they are backing off but i am very adamant it taking it to a logical conclusion ,That Bug is Names The Samba Mamba Dance :lol: :mrgreen:

Author:  fzabkar [ September 7th, 2019, 17:11 ]
Post subject:  Re: MRT 2140 vs 2130 Seagate ROM read speed in serial BOOT M

Can you set any higher baud rates manually? I would try 115200 bps. That's the highest baud rate supported by a "standard" UART, ie one where the baud rate divisor is equal to 1.

Author:  michael chiklis [ September 10th, 2019, 5:51 ]
Post subject:  Re: MRT 2140 vs 2130 Seagate ROM read speed in serial BOOT M

fzabkar wrote:
Can you set any higher baud rates manually? I would try 115200 bps. That's the highest baud rate supported by a "standard" UART, ie one where the baud rate divisor is equal to 1.


Hi Frank,
i just tried also 115200 bps speed, it always auto set at 38400 bps !!
:?

Author:  michael chiklis [ September 10th, 2019, 6:15 ]
Post subject:  Re: MRT 2140 vs 2130 Seagate ROM read speed in serial BOOT M

Ok, i just found out that is possible to read at full speed via boot mode even on last MRT version only if you select first a seagate family, if you select "F3 Arch (common)" the serial speed will be always setted at 38400 bps.
Attachment:
BOOT MODE.jpg
BOOT MODE.jpg [ 102.23 KiB | Viewed 234 times ]

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