Hi Please see the report below. I've tried flashing 2 eproms but get the same result. Any ideas? Thanks Dennis Calibrating delay loop... OK. Found Macronix flash chip "MX25U6435E/F" (8192 kB, SPI) on ch341a_spi. Reading old flash chip contents... done. Erasing and writing flash chip... Erase/write done. Verifying flash... FAILED at 0x00000010! Expected=0x5a, Found=0x5b, failed byte count from 0x00000000-0x007fffff: 0x332be2 Your flash chip is in an unknown state. Please report this on IRC at chat.freenode.net (channel #flashrom) or mail flashrom@flashrom.org, thanks!
On Wed, Jan 22, 2020 at 2:07 PM Dennis <dennistravel@gmail.com> wrote:
Hi. Please see the report below. I've tried flashing 2 eproms but get the same result. Any ideas? Thanks, Dennis
Calibrating delay loop... OK. Found Macronix flash chip "MX25U6435E/F" (8192 kB, SPI) on ch341a_spi. Reading old flash chip contents... done. Erasing and writing flash chip... Erase/write done. Verifying flash... FAILED at 0x00000010! Expected=0x5a, Found=0x5b, failed byte count from 0x00000000-0x007fffff: 0x332be2 Your flash chip is in an unknown state. Please report this on IRC at chat.freenode.net (channel #flashrom) or mail flashrom@flashrom.org, thanks!
Please describe your flashing setup. Are you trying the ISP (in-system programming) using a SOIC clip? Maybe the wires between ch341a and this test clip are too long or poor quality (have a high resistance, i.e. aluminium has 1.5x higher resistance than copper)
Hi Dennis, On 19.01.20 19:21, Dennis wrote:
Found Macronix flash chip "MX25U6435E/F" (8192 kB, SPI) on ch341a_spi.
only realized this now, that Mike mentioned the programmer voltage: This is a 1.8V part. The CH341A is 5V or 3.3V. So make sure to use a proper adapter. Nico PS. Please keep the mailing list addressed when replying.
Hi Nico Thanks for the voltage warning. I wasn't aware it was a 1.8v device. I thought it was 3.3v. I guess I'll have to search for another programmer and chip! Dennis On Thu, 23 Jan 2020 at 09:22, Nico Huber <nico.h@gmx.de> wrote:
Hi Dennis,
On 19.01.20 19:21, Dennis wrote:
Found Macronix flash chip "MX25U6435E/F" (8192 kB, SPI) on ch341a_spi.
only realized this now, that Mike mentioned the programmer voltage: This is a 1.8V part. The CH341A is 5V or 3.3V. So make sure to use a proper adapter.
Nico
PS. Please keep the mailing list addressed when replying.
Thanks for the voltage warning. I wasn't aware it was a 1.8v device. I thought it was 3.3v. I guess I'll have to search for another programmer and chip!
CH341A might still be the cheapest option. They are sometimes sold with a 1.8V adapter. Just search for the combination... maybe you can also find that adapter w/o an additional CH341A. The chips might still work, they usually are rather sturdy. Nico
Does the 1.8v adapter board drop into the usb boards chip holder? On Thu, 23 Jan 2020 at 09:48, Nico Huber <nico.h@gmx.de> wrote:
Thanks for the voltage warning. I wasn't aware it was a 1.8v device. I thought it was 3.3v. I guess I'll have to search for another programmer and chip!
CH341A might still be the cheapest option. They are sometimes sold with a 1.8V adapter. Just search for the combination... maybe you can also find that adapter w/o an additional CH341A.
The chips might still work, they usually are rather sturdy.
Nico
On Thu, Jan 23, 2020 at 3:46 PM Dennis Dale-Green <dennistravel@gmail.com> wrote:
Does the 1.8v adapter board drop into the usb boards chip holder?
Depends on what adapter you're talking about. Those I've seen on AliExpress and sometimes are being sold together with CH341A as a bundle, seem to be compatible, but as I've never encountered any 1.8v parts I didn't have a chance to try yet. Don't throw away a chip yet, maybe it's still alive.
Thanks, I've ordered a bundle with the adapter, will take a few days to arrive. I've kept the chip and will report back when done. Regards Dennis On Thu, 23 Jan 2020 at 17:04, Mike Banon <mikebdp2@gmail.com> wrote:
On Thu, Jan 23, 2020 at 3:46 PM Dennis Dale-Green <dennistravel@gmail.com> wrote:
Does the 1.8v adapter board drop into the usb boards chip holder?
Depends on what adapter you're talking about. Those I've seen on AliExpress and sometimes are being sold together with CH341A as a bundle, seem to be compatible, but as I've never encountered any 1.8v parts I didn't have a chance to try yet. Don't throw away a chip yet, maybe it's still alive.
New ch341a programmer and adapter arrived and now can program and verify. Thanks On Thu, 23 Jan 2020 at 17:13, Dennis Dale-Green <dennistravel@gmail.com> wrote:
Thanks,
I've ordered a bundle with the adapter, will take a few days to arrive.
I've kept the chip and will report back when done.
Regards
Dennis
On Thu, 23 Jan 2020 at 17:04, Mike Banon <mikebdp2@gmail.com> wrote:
On Thu, Jan 23, 2020 at 3:46 PM Dennis Dale-Green <dennistravel@gmail.com> wrote:
Does the 1.8v adapter board drop into the usb boards chip holder?
Depends on what adapter you're talking about. Those I've seen on AliExpress and sometimes are being sold together with CH341A as a bundle, seem to be compatible, but as I've never encountered any 1.8v parts I didn't have a chance to try yet. Don't throw away a chip yet, maybe it's still alive.
participants (4)
-
Dennis -
Dennis Dale-Green
-
Mike Banon -
Nico Huber