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Sample Macronix MX25L1605D (SPI flash) write dump.
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1This is an example capture of a Macronix MX25L1605D (MX25L1605DPI-12G)
2SPI flash chip (16MBit == 2Mbyte; NOR flash) that is being written to.
3
4The SPI programmer hardware used is openbiosprog-spi, see
5
6 http://randomprojects.org/wiki/Openbiosprog-spi
7
8The software used for programming it is flashrom, see
9
10 http://flashrom.org/FT2232SPI_Programmer
11
12The command line used was
13
14 flashrom -p ft2232_spi:type=2232H,port=A -w filename
15
16where 'filename' is a 2MByte file filled with lots of consecutive "HelloWorld"
17ASCII character strings.
18
19The logic analyzer used for capturing is a Saleae Logic at a sample rate
20of 2MHz. The capture was done using sigrok (02/2011) via
21
22 sigrok-cli -d 0:samplerate=2MHz --time 5s -o foo
23
24The Saleae Logic probes were connected like this to the MX25L1605D chip:
25
26 Probe SPI chip pin
27 ------------------------
28 1 (black) CS#
29 2 (brown) SO/SIO1 (a.k.a MISO)
30 3 (red) SCLK
31 4 (orange) SI/SIO0 (a.k.a MOSI)
32 5 (yellow) WP#/ACC
33 6 (green) HOLD#
34 GND GND
35
36The capture is only partial, it contains 5 seconds of the write process
37(it does not contain the chip identification, chip erase, etc. which comes
38before the actual write parts; it also does not contain anything after those
395 seconds, the flashrom command took quite a bit longer than 5 seconds).
40