Answers Database

PROMS: How to program a 'D' type prom from a different type master prom


Record #138

Product Family:  Hardware

Product Line:  1700

Problem Title:
PROMS: How to program a 'D' type prom from a different type master prom


Problem Description:
How to program a 'D' type prom from a master prom of a different type


Solution 1:

Using XPP (3.31 or later) and the HW-112 programmer, it is possible to program t
he new
'D' proms from an existing 'A' master prom, provided they are the same size prom
.
The procedure is as follows:

1)  	Load the 'A' device into the HW-112 programmer.

2)	     Load the 'A' device driver, then read the contents of the 'A' devic
e
	and write it to a file using RBT file format.  ( This is #3 under option
	6 in XPP.

2)	Change the device driver to the 'D' part.

3)	load the blank D prom into the HW-112 programmer and program the device
	      from the .RBT file just created.

A similar method could be used to program a 'D' part from a standard
( non- 'A' or 'D' ) prom.

Limitations:  Both PROMs need to be the same size--e.g., a 1736A can be used to
program
a 1736D, but not a 1765



End of Record #138