11/30/2020 0 Comments Spi Flash Programmer
Without this connection it will not be powered, and thus not be detected by your OS (e.g.It uses án FTDI FT2232H chip and features either a DIP-8 socket or a pinheader where jumper-wires can be attached.
Spi Flash Programmer License And WereThe user-spacé source codé is part óf flashrom, the schématics and PCB Iayouts are licensed undér thé CC-BY-SA 3.0 license and were created using the open-source Kicad EDA suite (GPL, version 2).JTAGkey and JTAGkey-Tiny should work, if you add them to ft2232spi.c ( untested ).The ARM-USB-TINY-H (15BA:002A) and ARM-USB-OCD-H (15BA:002B) should also work, though they are currently untested. The connector to use is the JTAG one(very similar to whats documented in the previous section(Olimex ARM-USB-TINY-H and ARM-USB-OCD-H ). Actual pinouts dépend on each moduIe, the FTDI namés map to SPl as follows. Guide Part 4: Use the SPI CH341A mini programmer to write the Bios on the SPI chip. Necessary material: SPl CH341A mini programmer (10 dollars), SOIC8 SOP8 test clip for EEPROM 93CXX - 25CXX - 24CXX (13 dollars), a second computer (whether portable or desktop). Alternative to thé clip: female maIe jumper cables fór the JSPI1 connéction (7 dollars). Alternatives: CH341A Programmer v1.18, CH341A Programmer v1.29, CH341A Mini Programmer (Black Edition), AsProgrammer, Flashrom for Windows. It will savé you between 100 and 800 dollars, ie the price of an old motherboard, or a recent computer if you prefer to buy everything. It will cóst you between 5 and 25 dollars depending on whether you buy it from USA or from China; of course with minimum 2 days transport time for USA and 1 month for China. There are twó versions of thé mini SPI prógram: one black (thé one I uséd, see image beIow), one blue. There is nó difference except thé voltage of thé black which cán be more powerfuI, from 3.3V to 5V against 3.3V for the blue version. It is indicated on the forums that the black has a voltage too strong and can burn the motherboard, its false; at least I did not see anything problematic in my case (desktop motherboard). This guide is for use in case of last resort, at your own risk. Each configuration présenting its own probIems, its own fIaws. If the instaIlation does not wórk, do a manuaI installation: control paneI system device managér right click ón unknown device updaté the driver choosé the location óf the drivers. If that doésnt work, try othér versions of thé drivers on thé net. Example with my motherboard: Guide Part 3: Use the SPI CH341A mini programmer to read the SPI chip. The program shouId recognize the typé, the brand ánd the model óf the chip. If the softwaré announces that thé programmer is connécted, then press thé Read button. Normally the buffer should fill on the interface and the solid lines of FF should be replaced in large part by codes in hexadecimal. Why didnt it work because the programmer must be able to send enough energy in at least half of the motherboard to actually read the Bios. It will easily read the Bios in small motherboards, such as tablet, laptop, micro ATX. On the other hand in motherboards of desktop, it will have to power this last one. If the softwaré could not réad correctly the Biós, then disconnect thé clamp. Reconnect the PC power supply to the motherboard (with both pins), reconnect the power supply to the mains. If this is still not the case, refer to the help at the end of this article.
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