From 5d35512117e5237e48ffcf16c6b4c6afb9553cd4 Mon Sep 17 00:00:00 2001 From: Marcus Comstedt Date: Mon, 13 Feb 2017 16:21:36 +0100 Subject: gpib: Add a sample capture of serial GPIB (IEC Bus) --- gpib/serial/cbm1571/README | 35 ++++++++++++++++++++++++++++ gpib/serial/cbm1571/cbm_1571_read_status.sr | Bin 0 -> 4800 bytes 2 files changed, 35 insertions(+) create mode 100644 gpib/serial/cbm1571/README create mode 100644 gpib/serial/cbm1571/cbm_1571_read_status.sr (limited to 'gpib') 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 diff --git a/gpib/serial/cbm1571/cbm_1571_read_status.sr b/gpib/serial/cbm1571/cbm_1571_read_status.sr new file mode 100644 index 0000000..805d6ef Binary files /dev/null and b/gpib/serial/cbm1571/cbm_1571_read_status.sr differ -- cgit v1.2.3-54-g00ecf