| Products > Test Equipment |
| TLA7xxx hacks (32M Depth on TLA7AA4CS enabled successful) :) |
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| TiN:
After reading this thread I got temptation to look into my TLA7AA4 module as well, to unlock some extra memory >:D I have CS option, which is 2MB of enabled memory with 450MHz rate. There are upper DS and ES (8MB and 32MB). I looked on board and actually realized that hardware have full memory populated, it's just software disabled. There are 24 (or 48, don't remember if memory also populated on bottom side) x Micron 128Mbit DDR ICs. And similar to other Tek machines, there is vxWorks PC in module as well, running on another smaller PCB with MC68360EM25L. Also RS232 port with console, just like expected, driven by LT1137A converter from SoC. I guess all calibration/key/option data is stored in DS1230AB, which will become a target after i get PROM programmer in my hands, to backup original data. Gotcha some console outputs (attached file) too, lkup command seem to output all possible commands/function calls :) Not familiar with vxWorks at all, but I guess there should be a way to read/write NVRAM from console. After some googling and trying: --- Code: ---temp = malloc(0x8000) -> sysNvRamGet(temp,0x8000,0) value = -1 = 0xffffffff --- End code --- which means error. And temp variable stored nothing meaningful :-X |
| EEVblog:
I doubt anyone has ever bothered investigating this one before? Good luck. |
| nctnico:
I have and the options are not in the NVRAM. I'd concentrate on the Powerflex tool for installing module upgrades. |
| TerraHertz:
--- Quote from: nctnico on September 22, 2013, 11:22:16 am ---I have and the options are not in the NVRAM. I'd concentrate on the Powerflex tool for installing module upgrades. --- End quote --- You sound so sure, yet offer no hints. Then what would you say the NVRAM is there for? The problem with using the software upgrade tool, is that (at least for my TLA 614) the 'upgrade kits' (data blobs) are no longer available. According to Tek's web site anyway. So getting the option installer to do its job (so can examine what it does and where the data goes) isn't an easy thing. Since there's no way in Hell I'm paying money for such a thing anyway, I don't think Tektronix would likely be terribly helpful. Considering my objectives, it's probably better not to even talk to them. Whether the old Pentium hardware trace units I have will work with the Celeron in my TLA - that's a question to be investigated. Btw TiN, I didn't get the files yet. Have been too busy procrastinating. ;D Probably tomorrow. |
| nctnico:
--- Quote from: TerraHertz on September 22, 2013, 03:24:50 pm --- --- Quote from: nctnico on September 22, 2013, 11:22:16 am ---I have and the options are not in the NVRAM. I'd concentrate on the Powerflex tool for installing module upgrades. --- End quote --- You sound so sure, yet offer no hints. Then what would you say the NVRAM is there for? --- End quote --- There is only calibration data in the NVRAM. I went down this road; the first thing I tried was erasing the NVRAM and see if the options would dissapear. They didn't so the options are not in the NVRAM. |
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