After hours of unsuccessful attempts to flash the BenF firmware last night I quickly came to realise my new Amazon purchase is running the 3.26d boot loader.
One thing I have noticed is the stock firmware for this unit is a single HEX file and not two separate LIB and APP HEX files as is the case with all the available versions of BenF’s firmware.
I did try copying both HEX files into one file and applying that but it didn’t make any difference.
Maybe the firmware just needs to be recompiled into a single file like the stock firmware is?
[size=150]Hi There I too have exactly the same problem, I tried the dfuse and benf routine, useless…I tried the 2 hex files, copies perfectly ok, everything ok went from hex to rdy whatever, checked on the computer on e:/ programs on there ok, disconnect usb lead and put it back, programs still there, turn it of and on again, blank white screen, looked on computer again drive empty, it wont keep the hex files/rdy files whatever you do, wonder if there is anyway to put the original program back on, at least that worked, if anyone ever finds out please let me know, before I throw it away, done everything I can think of, might want to watch u tube clips on the nano, plenty of them,best wishes…Fred Nr London,[/size]
Yeah, the units shipping with 4.21 can’t use any of the custom firmwares because these dsos now use a different lcd driver. That’s why we get the white screen of death. Apparently the original lcds are out of production.
It doesn’t look like this new firmware with the updated lcd drivers are open source either, complicating the matter of porting the drivers to benf. Still, I’m keeping my fingers crossed that someone smart can figure it out.
These units with 4.21 and another LCD controller, did you buy them from Seeedstudio? The info from Seeedstudio in the wiki says that the Nano v3 uses the same hardware and firmware as the v2, and that open-source is one of the features.
No, if you buy a clone from a random dealer you don’t know what you get… The products are not the same and the vendors are not the same either. Seeedstudio stand behind their product and are supportive of open-source and alternative firmwares. And they host this forum for their customers… hint hint… When choosing a vendor to buy from you “vote” with your money.
if he confess his sins before thee and me, and repenteth in the sincerity of his heart, him shall ye forgive
Note that Seeedstudio generously offers an “Others” forum section for “Externally-sourced products, anything you want to say.” So feel free to post there about these scopes. I wouldn’t mind a few posts here either, but it is getting really confusing with everybody filling this forum with their firmware issues on various devices, often without being able to explain what device they really have.
dso.218, you bought /through/ Amazon, not from Amazon, and you chose some dealer there. And it would anyway not help if Amazon is big and famous, if they don’t care about their customers.
All that said, this guy seems to insinuate that Seeedstore have messed up as well: viewtopic.php?f=3&t=4671
So I wrote to BenF through PM here on forum and I a send message to seller of Chinese DSO clone if they could send me source code for their firmware. If only we could get latest BenF source code and working “new LCD model” firmware source code it hopefully could get married.
New hardware is permanent/persistent issue and it won’t go away until we find a way around it. Help me out here if you can please.
Hello everybody BTW
[EDIT] I found a hint on Chinese forum:
Previous LCD driver: 7781 Current LCD driver: 9341
www datasheetdir com / ST7781+download
www wdflcd com / xz / ILI9341_AN_V0.6_20110311.pdf
I have a DSO201 made by minidso that I bricked by trying to upload their own firmware to it
In my quest to return it to a functional state, I downloaded the the zip file (BenF364_LIB353) and extracted the two files (V353_LIB.HEX and V364_APP.HEX). I connected my unit via the USB cable and powered it on in DFU mode. An icon titled “DFU V3_29_D” appeared under My Computer. I copied the V353_LIB.HEX file to the root folder of the device. Then I copied the V364_APP.HEX file to the root folder of the device. It disconnected and remounted and after that the two files showed as V353_LIB.RDY and V364_APP.RDY. I powered the device off, disconnected the cable, and powered it on again and now all I have is a flickering greyish screen. If anyone can tell me what I did wrong, I would be very appreciative as right now my DSO201 isn’t even a very good paper weight.
I have developed one App for Android to read the files from BenF firmware an see the waves on your tablet screen, even make measures, very basic but it works!
I think I hit the same problem… copied the BenF .hex files to my 201, and it bricked to a white/grey screen… It also produced a .err file when it remounted… (pretty sure it was BenF 4.6.2 -App that bricked it.) Obtained the rar file from the link someone else provided. Hope it fixes things, Otherwise, I’m sunk… (and this makes #3 I’ve owned… the other two were lost when house was demolished… Don’t ask… L-O-N-G Story!)