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Fritz442

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  1. Fritz442
    🤩 TOD Guide MikeV.pdf
  2. Fritz442
    Yeah, pm sent.
  3. Fritz442
    Just updated zip files, decoded all thru the DuPAL and added the following Jedec's: Corcomp_256k-512k_Memory_Plus_U24_(MP3C)_PAL.JED Corcomp_256k-512k_Memory_Plus_U25_(MP2C)_PAL.JED Myarc_Geneve_9640_Video_PWB_EW001_U202_PAL.JED Myarc_Geneve_9640_TURBO_Video_PWB_EW001_U202_PAL.JED DataBioTics_TI-Workshop_16R4_PAL.JED Rave99_Speech_Adapter_SPA-01_U1_TI994A_GAL.JED
  4. Fritz442
    This looks really close. Internet Archive: TMS9900_Family_System_Development_Manual_1977_MP702.pdf
  5. Fritz442
    OK it looks like you have two chips stuck on, the chip tester page only works good with one bad chip. Looks like U22 and U25 are stuck on for Bank 1. That's why you see '24' under the Bank. U22 is the LH-2 and U25 is the RH-4.
  6. Fritz442
    Yeah, that should work. Here's a .dsk of it to install on Nano. MEMWRITE.dsk
  7. Fritz442
    If you have a Minimem or Finalgrom modules, try this: Run from Minimem module Press keys '0' thru 'F' to get results on the banks, whatever key you press you should see the same under the bank area. '0' you should see '00', '7' you should see '77', etc... Then press 'P' and look for the odd marked chip under the failed bank. MEMWRITE_v2.1.zip
  8. Fritz442
    Just to put the jedec issue to rest, can anyone else here please burn this CC U2 with a 2793 controller to a GAL16V8 to see if anyone else has issues with it. I have burned it numerous times with no issues on either of my two cards. Corcomp_DSDD_FDC_U2_w-2793_(DCCU2)_GAL.JED
  9. Fritz442
    I can burn both GAL's and test them and send them to you. PM me.
  10. Fritz442
    Oh yes, over and over. I think I read somewhere about 100 times. From the GAL16V8D datasheet, "Unique test circuitry and reprogrammable cells allow complete AC, DC, and functional testing during manufacture. As a result, Lattice Semiconductor delivers 100% field programmability and functionality of all GAL products. In addition, 100 erase/write cycles and data retention in excess of 20 years are specified."
  11. Fritz442
    Yeah, I've had zero issues with the Lattice chips GAL16V8D-15LP and 25LP, and my T56 can burn all five variants of this one.
  12. Fritz442
    Yeah I was looking for that post but could not find it, that is the exact card I have. Just asking, since the boards are not marked, you are placing U2 at the bottom socket near the peb connector?
  13. Fritz442
    Ok, I took your 'corcomp u2 jed.jed' file and burned it to a Lattice GAL16V8D chip and installed it on my CC at U2, and it works fine. So the data file is correct. Your file is just separated line by line instead of clusters of 8 sections together, here is your file back and you'll see it's the same. So this must be a chip issue or a different version of the board. Can you post a pic of that board? Also are both your boards the same? EDIT: I just burned your file to my GAL16V8D on my T56, as a GAL16V8A, GAL16V8B, GAL16V8C, GAL16V8D and all worked fine, there is also a GAL16V8 <--with no letter-the TI booted normally, but the card did not work, Disk Manager error No disk drive(0). corcomp u2 jed.JED_returned.jed
  14. Fritz442
    If this is after you program the chip, you need to not lock "encrypt ch" to be able to read it back out.
  15. Fritz442
    Atmel ATF16V8C simple mode PAL device emulation/PAL replacement. In the simple mode, eight product terms are allocated to the sum term. Pins 15 and 16 (center macrocells) are permanently configured as combinatorial outputs. Other macrocells can be either inputs or combinatorial outputs with pin feedback to the AND-array. Pins 1 and 11 are regular inputs. The compiler selects this mode when all outputs are combinatorial without OE control. The following simple PALs can be emulated using this mode: 10L8 10H8 10P8 "12L6" 12H6 12P6 14L4 14H4 14P4 16L2 16H2 16P2. So it should work? But I've never used a Minipro. It might be the A,B,C thing but I'm not sure. Tonight I can burn my 16V8B's as A or C and see if they work. Let me do some checking
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