projects / sigrok-dumps.git / blame
| Commit | Line | Data |
|---|---|---|
| aae6295c UH |
1 | ------------------------------------------------------------------------------- |
| 2 | Macronix MX25L1605D (SPI flash chip) | |
| 3 | ------------------------------------------------------------------------------- | |
| 4 | ||
| 5 | This is a set of example captures of a Macronix MX25L1605D (MX25L1605DPI-12G) | |
| 6 | SPI flash chip (16MBit == 2Mbyte; NOR flash) that is probed, being written to, | |
| 7 | read, or erased. | |
| d83eec54 UH |
8 | |
| 9 | The SPI programmer hardware used is openbiosprog-spi, see | |
| 10 | ||
| 11 | http://randomprojects.org/wiki/Openbiosprog-spi | |
| 12 | ||
| 13 | The software used for programming it is flashrom, see | |
| 14 | ||
| 15 | http://flashrom.org/FT2232SPI_Programmer | |
| 16 | ||
| d83eec54 | 17 | |
| aae6295c UH |
18 | Logic analyzer setup |
| 19 | -------------------- | |
| d83eec54 | 20 | |
| f28b538f | 21 | The logic analyzer used for capturing is a ChronoVu LA8 at a sample rate |
| aae6295c | 22 | of 25MHz. |
| d83eec54 | 23 | |
| aae6295c | 24 | The ChronoVu LA8 probes were connected to the MX25L1605D chip like this: |
| d83eec54 UH |
25 | |
| 26 | Probe SPI chip pin | |
| 27 | ------------------------ | |
| f28b538f UH |
28 | 0 (green) CS# |
| 29 | 1 (orange) SO/SIO1 (a.k.a MISO) | |
| 30 | 2 (white) SCLK | |
| 31 | 3 (red) SI/SIO0 (a.k.a MOSI) | |
| 32 | 4 (gray) WP#/ACC | |
| 33 | 5 (brown) HOLD# | |
| d83eec54 UH |
34 | GND GND |
| 35 | ||
| aae6295c UH |
36 | |
| 37 | Probing | |
| 38 | ------- | |
| 39 | ||
| 40 | The flashrom command line used was: | |
| 41 | ||
| 42 | flashrom -p ft2232_spi:type=2232H,port=A | |
| 43 | ||
| 44 | The sigrok command line used was: | |
| 45 | ||
| 46 | sigrok-cli -d 0:samplerate=25mhz --samples 8388608 \ | |
| 47 | -p '1=CS#,2=MISO,3=SCLK,4=MOSI,5=WP#,6=HOLD#' \ | |
| 48 | --wait-trigger --triggers 3=1 \ | |
| 49 | -o mx25l1605d_probe.sigrok | |
| 50 | ||
| 51 | The capturing starts when the SCLK signal is high for the first time | |
| 52 | (it's low per default). We capture as many samples as fit into the 8MByte | |
| 53 | buffer of the logic analyzer. | |
| 54 | ||
| 55 | The capture might not contain the complete flashrom chip detection sequence. | |
| 56 | ||
| 57 | ||
| 58 | Writing | |
| 59 | ------- | |
| 60 | ||
| 61 | The flashrom command line used was: | |
| 62 | ||
| 63 | flashrom -p ft2232_spi:type=2232H,port=A -w filename | |
| 64 | ||
| 65 | where 'filename' is a 2MByte file filled with lots of consecutive "HelloWorld" | |
| 66 | ASCII character strings. | |
| 67 | ||
| 68 | The sigrok command line used was: | |
| 69 | ||
| 70 | sigrok-cli -d 0:samplerate=25mhz --samples 8388608 \ | |
| 71 | -p '1=CS#,2=MISO,3=SCLK,4=MOSI,5=WP#,6=HOLD#' \ | |
| c3cbda71 | 72 | -o mx25l1605d_write.sigrok |
| aae6295c | 73 | |
| f28b538f | 74 | The capture is only partial, it contains a small part of the write process |
| d83eec54 | 75 | (it does not contain the chip identification, chip erase, etc. which comes |
| f28b538f UH |
76 | before the actual write parts; it also does not contain anything after that, |
| 77 | the flashrom command took quite a bit longer than what the capture shows). | |
| d83eec54 | 78 | |
| aae6295c UH |
79 | |
| 80 | Reading | |
| 81 | ------- | |
| 82 | ||
| 83 | The flashrom command line used was: | |
| 84 | ||
| 85 | flashrom -p ft2232_spi:type=2232H,port=A -r dump.dd | |
| 86 | ||
| 87 | The sigrok command line used was: | |
| 88 | ||
| 89 | sigrok-cli -d 0:samplerate=25mhz --samples 8388608 \ | |
| 90 | -p '1=CS#,2=MISO,3=SCLK,4=MOSI,5=WP#,6=HOLD#' \ | |
| 91 | -o mx25l1605d_read.sigrok | |
| 92 | ||
| 93 | The capture only contains a small part of the read procedure. The data in | |
| 94 | the chip consists of consecutive "HelloWorld" ASCII strings. | |
| 95 | ||
| 96 | ||
| 97 | Erasing | |
| 98 | ------- | |
| 99 | ||
| 100 | The flashrom command line used was: | |
| 101 | ||
| 102 | flashrom -p ft2232_spi:type=2232H,port=A -E | |
| 103 | ||
| 104 | The sigrok command line used was: | |
| 105 | ||
| 106 | sigrok-cli -d 0:samplerate=25mhz --samples 8388608 \ | |
| 107 | -p '1=CS#,2=MISO,3=SCLK,4=MOSI,5=WP#,6=HOLD#' \ | |
| 108 | -o mx25l1605d_erase.sigrok | |
| 109 | ||
| 110 | The capture does not contain the full erase process, only a small part of it. | |
| 111 |