Release Notes for V1.2
This version of the mini-adpater firmware is designed to fix
intermittent JTAG errors which may have been dependent on
the number of mezzanine cards connected.
The previous version (V1.0) sensitive to the following problem--
the AMT TDC would place it's TDO signal in a high-impedance
state whenever the JTAG state machine was not in the shift_IR or
shift_DR state per the JTAG standard. The adapter did not implement
this feature and would continue to buffer the TDO signal to the
next mezzanine card in the chain. If the high-impedance node
drifted into the logic transition region, the adapter output
would oscillate at a high frequency.
An Altera Byte-Blaster MV programming cable is required.
(If you need one and don't want to pay $150 for it, we have designed
our own... contact Chris Lawlor
if you are interested.)
Additionally, you need at least the free version of the Altera
Max Plus II software, which you can download from
There are 4 identical CPLD devices. You must define a JTAG chain
containing these 4 devices for programming. Briefly:
- Connect Byte Blaster cable to 10-pin header on lower left corner
of mini-adapter. Pin 1 is nearest the corner of the PCB. Apply power
to mini-adapter motherboard.
- Launch Max+Plus II software.
- Select MAX+plus II -> Programmer
- Select JTAG -> Multi-Device JTAG Chain Setup
- Click Delete All if there are any files listed
- Click Select Programming File and locate the file
csm_chip.pof from the zip archive. Select file and OK.
- Click Add four times.
- Click Detect JTAG Chain Info. If you do not see
"JTAG configuration confirmed by hardware check" then you need to fix something.
- Click OK to get back to main programmer dialog.
- Click Program.