| | 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. |
| | 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 | |
| | 17 | |
| | 18 | Logic analyzer setup |
| | 19 | -------------------- |
| | 20 | |
| | 21 | The logic analyzer used was a ChronoVu LA8 (at 25MHz): |
| | 22 | |
| | 23 | Probe MX25L1605D pin |
| | 24 | -------------------------- |
| | 25 | 0 (green) CS# |
| | 26 | 1 (orange) SO/SIO1 (a.k.a MISO) |
| | 27 | 2 (white) SCLK |
| | 28 | 3 (red) SI/SIO0 (a.k.a MOSI) |
| | 29 | 4 (gray) WP#/ACC |
| | 30 | 5 (brown) HOLD# |
| | 31 | |
| | 32 | |
| | 33 | Probing |
| | 34 | ------- |
| | 35 | |
| | 36 | The flashrom command line used was: |
| | 37 | |
| | 38 | flashrom -p ft2232_spi:type=2232H,port=A |
| | 39 | |
| | 40 | The sigrok command line used was: |
| | 41 | |
| | 42 | sigrok-cli -d 0:samplerate=25mhz --samples 8388608 \ |
| | 43 | -p '1=CS#,2=MISO,3=SCLK,4=MOSI,5=WP#,6=HOLD#' \ |
| | 44 | --wait-trigger --triggers 3=1 \ |
| | 45 | -o mx25l1605d_probe.sr |
| | 46 | |
| | 47 | The capturing starts when the SCLK signal is high for the first time |
| | 48 | (it's low per default). We capture as many samples as fit into the 8MByte |
| | 49 | buffer of the logic analyzer. |
| | 50 | |
| | 51 | The capture might not contain the complete flashrom chip detection sequence. |
| | 52 | |
| | 53 | |
| | 54 | Writing |
| | 55 | ------- |
| | 56 | |
| | 57 | The flashrom command line used was: |
| | 58 | |
| | 59 | flashrom -p ft2232_spi:type=2232H,port=A -w filename |
| | 60 | |
| | 61 | where 'filename' is a 2MByte file filled with lots of consecutive "HelloWorld" |
| | 62 | ASCII character strings. |
| | 63 | |
| | 64 | The sigrok command line used was: |
| | 65 | |
| | 66 | sigrok-cli -d 0:samplerate=25mhz --samples 8388608 \ |
| | 67 | -p '1=CS#,2=MISO,3=SCLK,4=MOSI,5=WP#,6=HOLD#' \ |
| | 68 | -o mx25l1605d_write.sr |
| | 69 | |
| | 70 | The capture is only partial, it contains a small part of the write process |
| | 71 | (it does not contain the chip identification, chip erase, etc. which comes |
| | 72 | before the actual write parts; it also does not contain anything after that, |
| | 73 | the flashrom command took quite a bit longer than what the capture shows). |
| | 74 | |
| | 75 | |
| | 76 | Reading |
| | 77 | ------- |
| | 78 | |
| | 79 | The flashrom command line used was: |
| | 80 | |
| | 81 | flashrom -p ft2232_spi:type=2232H,port=A -r dump.dd |
| | 82 | |
| | 83 | The sigrok command line used was: |
| | 84 | |
| | 85 | sigrok-cli -d 0:samplerate=25mhz --samples 8388608 \ |
| | 86 | -p '1=CS#,2=MISO,3=SCLK,4=MOSI,5=WP#,6=HOLD#' \ |
| | 87 | -o mx25l1605d_read.sr |
| | 88 | |
| | 89 | The capture only contains a small part of the read procedure. The data in |
| | 90 | the chip consists of consecutive "HelloWorld" ASCII strings. |
| | 91 | |
| | 92 | |
| | 93 | Erasing |
| | 94 | ------- |
| | 95 | |
| | 96 | The flashrom command line used was: |
| | 97 | |
| | 98 | flashrom -p ft2232_spi:type=2232H,port=A -E |
| | 99 | |
| | 100 | The sigrok command line used was: |
| | 101 | |
| | 102 | sigrok-cli -d 0:samplerate=25mhz --samples 8388608 \ |
| | 103 | -p '1=CS#,2=MISO,3=SCLK,4=MOSI,5=WP#,6=HOLD#' \ |
| | 104 | -o mx25l1605d_erase.sr |
| | 105 | |
| | 106 | The capture does not contain the full erase process, only a small part of it. |
| | 107 | |
projects / sigrok-dumps.git / blame_incremental