[sigrok-dumps.git] / gpib / serial / cbm1571 / README

-------------------------------------------------------------------------------
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
Commit	Line	Data
5d355121 MC	1	-------------------------------------------------------------------------------
	2	Serial GPIB (IEC Bus)
	3	-------------------------------------------------------------------------------
	4
	5	This is an example capture of some IEC Bus traffic on a CBM 1571 floppy disk
	6	drive.
	7
	8	Details:
	9	https://en.wikipedia.org/wiki/Commodore_bus
	10
	11
	12	Logic analyzer setup
	13	--------------------
	14
	15	The logic analyzer used was a genuine Saleae Logic16 (at 1 MHz):
	16
	17	Probe IEC
	18	---------------
	19	0 SRQ
	20	1 -
	21	2 ATN
	22	3 CLK
	23	4 DATA
	24	5 RESET
	25
	26
	27	Data
	28	----
	29
	30	The following is happening on the IEC bus in this capture:
	31
	32	- Controller sets device with GPIB address number 8 to TALK
	33	- Controller reopens channel 15
	34	- Device with GPIB address number 8 sends a status string to controller
	35	- Controller sets the GPIB to UNTALK