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Diffstat (limited to 'gpib/serial/cbm1571/README')
| -rw-r--r-- | gpib/serial/cbm1571/README | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gpib/serial/cbm1571/README b/gpib/serial/cbm1571/README new file mode 100644 index 0000000..b9cb513 --- /dev/null +++ b/gpib/serial/cbm1571/README @@ -0,0 +1,35 @@ +------------------------------------------------------------------------------- +Serial GPIB (IEC Bus) +------------------------------------------------------------------------------- + +This is an example capture of some IEC Bus traffic on a CBM 1571 floppy disk +drive. + +Details: +https://en.wikipedia.org/wiki/Commodore_bus + + +Logic analyzer setup +-------------------- + +The logic analyzer used was a genuine Saleae Logic16 (at 1 MHz): + + Probe IEC + --------------- + 0 SRQ + 1 - + 2 ATN + 3 CLK + 4 DATA + 5 RESET + + +Data +---- + +The following is happening on the IEC bus in this capture: + + - Controller sets device with GPIB address number 8 to TALK + - Controller reopens channel 15 + - Device with GPIB address number 8 sends a status string to controller + - Controller sets the GPIB to UNTALK |