lolof

? Very nice, well done. I like it very much ! ?

Thanks for all the replies and help. Fritz442 could identify the exact broken Chip with help of minimem/easybug This was U31. Piggyback did not work in this case,I tried several times. As suggested by Fritz, I replaced the bad U31 with a new one and the card is working now.? Happy to have the 32Ko working in the PEB ?

Thank you. I was able to load memwrite with the TIPI and the 32Ko in the PEB. I though the TIPI would not work with a broken 32Ko but it worked to load the program. I just have mistakes pushing "1" (only tried with 0,1,2,4,8) Here is a screenshot

Just tried the piggyback trick without success ? Thanks for all the explanations and the files. I have some C64 Floppy disks.... Those can be used with the original PEB floppy drive ? If yes, I could format and write a disk with the file with help of TIPI+external 32Ko. After I could be able to load the file in Mini memory from the floppy drive PEB + only internal 32Ko in PEB..... Does it sounds OK to do ?

Thanks for the help but I am afraid I can't do this..... If I understood good, I should install "256k MINI MEMORY" into the FG99 and then load from it the memwrite file ?? I could not find the 256K mini memory.zip in the FG thread.... Where can I find it ? But, my main problem should be how to transfer the file ? I am new to the PEB and still have no floppy disks for it. I could maybe load that file with the TIPI if it's possible but the tipi need the 32k to work if I understood... I have another card in the PEB, rs232 I think but I do not know if it's working nor if it's possible and how to transfer file with this connection..... Surely complicate to start with this... I just now the PEB is working OK with a tipi card inside and a 32K outside attached to the speech Synthesiser. The PEB is connected in this case through a PCB adapter on the external 32K expansion port. (of course without the broken 32K inside the PEB)

No, no Mini Memory cart here. Only a FinalGrom99. Can I do something with the FG99 ? I ordered some rams ICs to try the piggyback trick.... I should received them in the next days.

Thank you for the information. Could you tell me which IC ram are in Bank2 ? I looked at the schematic but honestly I could not understand which one are parts of bank2. Thanks

I bought a TI PHP1260 last year and just tested it in my PEB today.... The test give me errors. See picture. I suppose one or more ram IC are broken... Is there a way to easily know which one on the card are bad ? Thank you very much

I got 8 the new memory (TMS4164-15LNJ) and solder 4 of them. I want to change them all but I have to wait to receive 4 sockets I ordered. It's already working. At least, I am getting the bootscreen without graphics corruption. For a complete test, I have to wait to receive the last sockets and put the TI all together again. Unfortunately, I can't confirm 100% that this was the number 2 broken. I did a mistake and removed the wrong one at first (Nr1). And as I cut the legs from IC, I could not test again with the old chips and I removed directly after a second one (Nr2) without testing. So, it's the Nr.1 or Nr.2. But surely Nr.2 as mizapf could reproduce almost the same problem on the emu. Here a picture of the actual status. Waiting the last 4 sockets... Thanks to all of you for the help.

Thank you very much, I will start with that Chip. I should receive new chip this week. I will report the result. I just want to ask, one modified 4164 will work with the other 4116 well or should all vram be changed to 4164 ? The chips I ordered are 4164..... I saw here I could use 4164 with a simple mod :

@mizapf Done, thanks to a old Samsung LCD TV ! I hope this picture is ok for you. The TI is connected on TV by Scart cable. It's a french TI.... I will start replace the vram one by one and see if it's the problem.

Thanks, I will have a look in the FAQ. It's connected on a old TV and I can't do a better picture with what I have here..... I have somewhere a LCD TV that should work. I will search for it and try to post a better picture.

I was assembling a finalgrom99 and unfortunately I got a broken CPLD from China..... The TI with the not working finalgrom99 started with blue screen and strange noise when flashing the CPLD for the first time. It's maybe a coincidence but after this, the screen from my TI was broken. See picture. I replace the FG99 CPLD with another one and it worked on an another TI-99/4A. Problem is, my first TI was my best one ? What can be broken ? I do not really know where to start.... I never repaired a TI, it's the first problem I have on TI....

I am looking for 2 Finalgrom99 sticker for my cartridges.... Can someone sell me this ? Thanks

Thank you very much. I received my packet :-)

Very nice video with a lot of interesting things

Yes, I didn't know but it was written in upper case in the wiki... Just looked at a youtube from jonecoole and loaded some dsk image extented basic games with tipimap, dir.... the same way he is doing in the video. It's working well. I wonder if it's possible to play the dragon's lair demo bin file loading it from TIPI ?

Oh ! I feel stupid :-) This is working now. Thank you

Hello, just tried my TIPI. The password and ssid are saved and its shows the IP address received when I do a call tipi in basic. In a browser on my computer, http://my_IP:9900 can access the page. SSH to the pi is also working. Problem is when doing a call tipi("tipi.net.telnet") in basic, the ti-99/4A reboot to the TI intro screen. Should I set something special on my wifi at home ? Thanks

Thanks to the help from jedimatt42, my TIPI is working now. I have to learn how to use it and enjoy.... Thank you very much.

Thank you very much for the reply. I'll check all again. Testing more before your reply, I discovered my 32K did not pass the ram test when the tipi is plugged on it. Also, if the 32k+tipi are plugged on the speech synt, then basic freeze when CALL TIPI instead "bad name"... EDIT : the .jed are the same...

Thank you. I just tested "CALL TIPI" and the TI reply with "BAD NAME". I also cannot hear the three beeps at the TI start. I put the last TIPI.BIN on a AM27C256-150 Eprom. I compiled the .jed for the xilinx from the source code with ISE. No jumper set on crubase configuration pins. Maybe I messed up by the compilation..... Could someone provide me a well known working .jed ? I could post a picture from the board, but it won't help at this point because it's not well cleaned. I should put it in the ultrasonic bath but can't do this before Monday.... I tested the CPLD for short and there is no bridge. Thanks

Is there something I can try to see if the Tipi is working, if I did no mistake by assembling the board while it is still not connected to the raspberry ? I am just missing the right angle socket to connect cables to the PI and would like to see if it's possible to see a sign of life without the PI. For exemple, see the version of eprom or something else... The 32Ko sidecard is set to EXT and is powered by its own PSU. The Tipi is just plugged on the sidecar. Thank you.

Thanks very much for this. You got a message from me I can't wait to play this game on my TI. I spent hours and lot of money on the Arcade one.....

Looks great ! I could not imagine that something like this was possible for the 4A. When seeing what's going on for the 4A on this forum, I am really happy to have took mine out of the storage; Really nice !