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Lattice IspLever V3.0

Z

Zerrin

Jan 1, 1970
0
I am using a Lattice ispMACH 5000VG CPLD (LC51024VG) on my design.
I am very frustrated with the result of the IspLever V3.0 development
Tool.
Stalled in the same place as two months ago. No progress in 2 months.
Project cancellation iminent. Unable to make any changes with
predictable, dependable results, despite every possible design
workaround imagineable attempted. Over 42 different workarounds
attempted, including registered mux outputs, straight binary TS
counter chain, 5-way reduced to 3-way mux, etc.,etc.
Total extent of changes implementable in two months without
unpredictable side effects (like complete breakdown in logic
functionality - not timing) are 3 x D registers, 3 x 2-input
and-gates,1x 3-input nor gate and 1x2-input nand gate.
Thats it. No other changes could be made with expected behavioral
effects.
Is anyone else having same problems or just me? Need an advise from
experts.
Regards,

Zerrin
 
F

Frank Raffaeli

Jan 1, 1970
0
I am using a Lattice ispMACH 5000VG CPLD (LC51024VG) on my design.
I am very frustrated with the result of the IspLever V3.0 development
Tool.
Stalled in the same place as two months ago. No progress in 2 months.
Project cancellation iminent. Unable to make any changes with
predictable, dependable results, despite every possible .. [snip]
Is anyone else having same problems or just me? Need an advise from
experts.
Regards,

Zerrin

Ouch. Get as far away from Lattice as possible. In 1993, someone I
know was a Lattice software development partner. (He) wrote a
schematic to equations / routing tool. I was shocked to see some of
his *contributions* appear in production software (PDS ver 2.6)
without his knowledge. If you knew what an newbie software engineer he
was, you would understand. Much of their software has never been
up-graded since that time.

Use Altera or Xilinx for FPGA's, CPLD's ... Actel for antifuse (OTP).
That's what we use here. Works great.

Frank Raffaeli
http://www.aomwireless.com/
 
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