Differences

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--- dump_spi_flash [2021/04/13 11:59] – finish CH341 part kingkevin
+++ dump_spi_flash [2021/04/13 18:14] – [BX48] kingkevin
@@ Line 78: / Line 78: @@
 {{:spi_flash:adapter_1.8v.jpg?0x150|}}
+==== MiniPRO ====
+The [[http://autoelectric.cn/EN/TL866_main.html|TL866A]] (aka. MiniPRO) is the next step up, and still cheap (< $30).
+{{:spi_flash:tl866a.jpg?0x200|}}
+Advantages:
+  * supports 3.3-6.5V VCC, allowing to properly power 3.3V and 5.0V flash
+  * has over-current protection, in case you inserted the chip wrongly
+  * does signature checking (this is just a software check though)
+  * supports up to 21V VPP and has flexible pin configuration, allowing plenty of other EEPROM chips or MCU to be flashed
+Disadvantages:
+  * does not support 1.8V (you can still use the same adapter as for the CH341A). the newer TL866II+ claims to support 1.8V, but from the [[https://github.com/radiomanV/TL866/raw/master/docs/TL866II.pdf|schematic]] I don't see how they do this properly
+  * also slow (~ 100 kbyte/s)
+For more information about the device (including reversed schematic), see [[https://proghq.org/wiki/index.php/TL866|this wiki]] or [[https://github.com/radiomanV/TL866|this repo]].
+To dump SPI flash, we will use [[https://gitlab.com/DavidGriffith/minipro/|minipro]].
+<code>
+# search for the right part using the top marking on the chip
+minipro --search 25q32bv
+Found TL866A 03.2.86 (0x256)
+W25Q32BV
+W25Q32BV@WSON8
+W25Q32BV@SOIC8
+W25Q32BV@SOIC16
+W25Q32BV(OTP)
+W25Q32BV(OTP)@WSON8
+W25Q32BV(OTP)@SOIC8
+W25Q32BV(OTP)@SOIC16
+# read the device ID to be sure the connection work (it's not get_id as in the help, but read_id)
+minipro --device 'W25Q32BV@SOIC8' --read_id
+Found TL866A 03.2.86 (0x256)
+Chip ID OK: 0xEF4016
+# alternatively, let it find which 25xx SPI 8-pin flash it is
+minipro --auto_detect 8
+Found TL866A 03.2.86 (0x256)
+Autodetecting device (ID:0xEF4016)
+S25FL032K@SOIC8
+W25Q32@MLP8
+W25Q32(OTP)@MLP8
+W25Q32BV
+W25Q32BV@WSON8
+W25Q32BV@SOIC8
+W25Q32BV(OTP)
+W25Q32BV(OTP)@WSON8
+W25Q32BV(OTP)@SOIC8
+W25Q32FV
+W25Q32FV@WSON8
+W25Q32FV@SOIC8
+W25Q32FV(OTP)
+W25Q32FV(OTP)@WSON8
+W25Q32FV(OTP)@SOIC8
+W25Q32V@MLP8
+W25Q32V(OTP)@MLP8
+device(s) found.
+# now read the memory
+minipro --device 'W25Q32BV@SOIC8' --read spi.bin
+Found TL866A 03.2.86 (0x256)
+Chip ID OK: 0xEF4016
+Reading Code...  40.53Sec  OK
+</code>
+==== BX48 ====
+The [[https://www.batronix.com/shop/programmer/BX48/index.html|Batronix BX48 Batego]] is my high end programmer.
+{{:spi_flash:bx48.jpg?0x200|}}
+Yes, it is expensive (> $500), but the hardware is good, and what you pay for is the support.
+And I have to say that it is excellent.
+Is a chip missing?
+Just ask them and they will swiftly add support for it.
+Note: This device is obsolete now, replaced by the [[https://www.batronix.com/shop/programmer/BX48/batego-II.html|BX48 Batego II]].
+The main difference is that the Batego I does not support VPP > 15V (only required by very old NMOS EPROM).
+It still seems to be supported though.
+The software is [[https://www.batronix.com/shop/software/prog-express/index.html#tabs-4|Prog-Express]], and there is even support for Linux (a bit lagging the Windows release).
+There is an auto-detect function, but I am too concerned it accidentally damages the chip.
+Therefor I still select the target chip by hand.
+On my setup it is not able to open the file dialog to allow me setting where I want to load/save the file (using version 3.8.8).
+To circumvent the issue I open the built-it hex-editor.
+There I can save read/write the data content, and save/load it.
+To get the latest chip database (particularly if the Linux release it lagging), here how I update it:
+<code>
+wget https://www.batronix.com/downloads/ChipDBUpdate/ChipDB.zip
+unzip ChipDB.zip
+sudo mv /usr/lib/prog-express/ChipDB.db3 /usr/lib/prog-express/ChipDB.db3.bak
+sudo mv ChipDB.db3 /usr/lib/prog-express/ChipDB.db3
+rm ChipDB.zip
+</code>