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List:       flashrom
Subject:    [flashrom] Re: lash chip is in an unknown state
From:       Delevic via flashrom <flashrom () flashrom ! org>
Date:       2022-08-29 14:33:53
Message-ID: 435473348.915204.1661783633980 () mail ! yahoo ! com
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Hi Nico,
No, I dont have it...Didnt know that chip is 1.8v. ch341a support is 3.3-5v. I must \
find voltage contorler.   Thaks, I will replay is that help :-)
RegardsDelevic  

Sent from Yahoo Mail on Android 
 
  On Mon, Aug 29, 2022 at 16:14, Nico Huber<nico.h@gmx.de> wrote:   Hi Delevic,

On 28.08.22 22:56, Delevic via flashrom wrote:
> Found Winbond flash chip "W25Q40EW" (512 kB, SPI) on ch341a_spi.

note this is a 1.8V chip and that might be the cause of your problems.
If you don't have a voltage adapter between your CH341A and the flash
chip, a safety circuit in the flash will trigger and prevent erasing
(as that would damage the chip at higher voltage).

If you already have a voltage adapter, it might be a write-protection.
Make sure that all the input pins have a defined state and that the
/WP pin is at a high level.

Hope that helps,
Nico
  


[Attachment #5 (text/html)]

Hi Nico,<div><br></div><div>No, I dont have it...Didnt know that chip is 1.8v. ch341a \
support is 3.3-5v. I must find voltage \
contorler.&nbsp;</div><div><br></div><div>Thaks, I will replay is that help \
:-)</div><div><br></div><div>Regards</div><div>Delevic&nbsp;<br><br><div \
id="ymail_android_signature"><a id="ymail_android_signature_link" \
href="https://go.onelink.me/107872968?pid=InProduct&amp;c=Global_Internal_YGrowth_Andr \
oidEmailSig__AndroidUsers&amp;af_wl=ym&amp;af_sub1=Internal&amp;af_sub2=Global_YGrowth&amp;af_sub3=EmailSignature">Sent \
from Yahoo Mail on Android</a></div> <br> <blockquote style="margin: 0 0 20px 0;"> \
<div style="font-family:Roboto, sans-serif; color:#6D00F6;"> <div>On Mon, Aug 29, \
2022 at 16:14, Nico Huber</div><div>&lt;nico.h@gmx.de&gt; wrote:</div> </div> <div \
style="padding: 10px 0 0 20px; margin: 10px 0 0 0; border-left: 1px solid #6D00F6;"> \
Hi Delevic,<br clear="none"><div class="yqt1430824369" id="yqtfd92615"><br \
clear="none">On 28.08.22 22:56, Delevic via flashrom wrote:<br clear="none">&gt; \
Found Winbond flash chip "W25Q40EW" (512 kB, SPI) on ch341a_spi.</div><br \
clear="none"><br clear="none">note this is a 1.8V chip and that might be the cause of \
your problems.<br clear="none">If you don't have a voltage adapter between your \
CH341A and the flash<br clear="none">chip, a safety circuit in the flash will trigger \
and prevent erasing<br clear="none">(as that would damage the chip at higher \
voltage).<br clear="none"><br clear="none">If you already have a voltage adapter, it \
might be a write-protection.<br clear="none">Make sure that all the input pins have a \
defined state and that the<br clear="none">/WP pin is at a high level.<br \
clear="none"><br clear="none">Hope that helps,<br clear="none">Nico<div \
class="yqt1430824369" id="yqtfd95495"><br clear="none"></div> </div> \
</blockquote></div>



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