Try to show the prototype and need feedback see if people would be interested in this kind of product.
Read NAND flash directly on the board seems possible now with the new type of clip and u-Link NT (USB JTAG NT) software is easily modified to access it. I have also tried router EA6400 with success.
NAND flash by nature has bit errors and ECC is used to fix them. Raw read could not do it properly. There might algorithms needed to fix the raw data bit errors based on ECC.
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https://www.youtube.com/watch?v=Pp71FowuqlQ
Mac version demo. Same as the other one http://youtu.be/Hy7XGNceuAo (Win)
This is the first DCU3 target that USB JTAG NT supports. CPU Sti5105. More DCU3 devices will be added. The program now is very simple with USB JTAG NT UI and speed is OK.
The fast programming is not implemented due to
1. It needs more memory and not available when the box is bricked.
2. The sprogram is already pretty fast.
The fast programming might be implemented in the future if required. (less info)
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https://www.youtube.com/watch?v=L1nRij1BBHY
This modem has SPI flash (512KB) and NAND flash (128MB).
Using 1.19 software create Two target XML for this modem.
The 3.3v only draws 100 mA power so it is safe to use 3.3v from u-Link NT or u-Link NAND.
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https://www.youtube.com/watch?v=N5yp6xeoDI8
Using 3.3v direct from u-Link is enough to power those two modems and being able to read and write the flash. Your miles may vary. If you cannot get it working you might need a better 3.3v source.
https://www.usbjtag.com/jtagnt/sb6141.php
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https://www.youtube.com/watch?v=teUR0vrpwLQ
Use USB JTAG NT to program good boot. Then use Dreamup to load firmware. This revives dead DM500S clone.
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https://www.youtube.com/watch?v=kQlxgd-XEgU
Original video is can be downloaded from the www.usbjtag.com Upload to youtube for better viewing experience.
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https://www.youtube.com/watch?v=OZgu1iFcRd8
In this video, the script is discussed. You will learn the script from MR18.usp.
After that, hope you can write your own script for your application.
Please go to https://www.usbjtag.com/phpbb3 to discuss. Also report any issues there.
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https://www.youtube.com/watch?v=45krjunIThk