Dead Hackers Society
Other BBSes »
 
 
Demoscene  Coding  CT60  Buy/sell

CT60 and related things BBS
 
$60 Contest for CT60 Fix
Posted by: Crash May,25.2010-02:45 

How about a contest?

I'll Paypal $60 USD to the first person that comes up with a way for me to fix my CT60.

Just to summarize...

My CT60 was installed with solders for bus speeder by Rodolph Czuba, and was working very well until two days ago when an update failed. It has the required modifications for in Falcon flashing, including 1Kohms resistor between GND (Ground) and the pin #1 of one of the three 74LVC245 chips to allow flashing from 030 mode. CTCM is also installed. The Dallas 1287 real time clock battery is probably quite dead.

My first attempt to update my CT60 resulted in a system hang. After waiting several minutes to be sure, I shut off the computer. After this, the computer would not boot (white screen).

Since then, I have successfully flashed using both PC and Falcon. I added a switch to my JTAG parallel port cable to allow use on either system. Below are the configurations for each flash procedure.

Falcon with current (4/10) CT60 Flash Tool Flash060.PRG from Didier Mequignon
Instructions from here:
http://pagesperso-orange.fr/didierm/ct60/index-e.htm

Flashed with:
- NVDI + CT60 installed
- NVDI + CT60 unplugged from expansion port but powered and connected to bus speeder

PC with Xilinx Impact software from Lab Tools

Instructions from here:
http://nokturnal.pl/home/atari_16_32_bit/ct60_firmware_upgrade

Flashed with:
- CT60 installed
- CT60 unplugged from expansion port but powered, jumper on mainboard pins

Erase, flash and verify using any method is error free - and I have probably done this 20 times. In all cases, if SDR is programmed, the system becomes unable to boot (black screen). Erasing the SDR allows the system to boot again in 030 mode.

The one thing I cannot try is to flash from another Falcon, since I do not have another that is working.

Things I have tried, but am happy to try again:

Flashing with:
ABE_V7C ; SDR_V7B
ABE_V5M ; SDR_V5E
ctpcitos.bin
ct60tos.bin

CT60: F030free NVRAM reset - F030Free boot sector

If the CT60 is removed from the expansion connector, but speeder remains attached, and mainboard jumper is replaced, the Falcon will boot in 030 mode with either external or original power supply. From what I can tell, the Falcon mainboard is fine, boots, and runs programs, although I am happy to test further as advised.

All that I can think of is that the first programming attempt failed during erase, or somehow corrupted the memory in one of the Xilinx units, but erasing and reprogramming does not solve this. Otherwise, somehow a CT60 hardware failure might have occurred at the exact moment I first tried to flash.

Please let me know if you can help, or have any questions.

Thanks







[All messages in this thread]    [Start new thread]

Topic Posted by  Date 
Hang during Flash Crash May,23.2010-03:03
  Re: Hang during Flash Ektus May,23.2010-05:47
  Re: Hang during Flash Méquignon Didier May,23.2010-10:05
    Re: Hang during Flash Crash May,23.2010-11:27
      Re: Hang during Flash Crash May,23.2010-15:29
        Re: Hang during Flash mikro May,24.2010-09:36
          Re: Dead CT60 Crash May,24.2010-11:22
            Re: Dead CT60 Didier Méquignon May,25.2010-13:09
      Re: Hang during Flash Didier Méquignon May,23.2010-19:09
        $60 Contest for CT60 Fix Crash May,25.2010-02:45
          Re: $60 Contest for CT60 Fix Beetle May,25.2010-03:18
            Re: $60 Contest for CT60 Fix Beetle May,25.2010-03:37
              Re: $60 Contest for CT60 Fix Crash May,25.2010-04:16
              Re: $60 Contest for CT60 Fix Crash May,26.2010-02:45
            Re: $60 Contest for CT60 Fix Crash May,25.2010-04:12
              Re: $60 Contest for CT60 Fix Crash May,25.2010-09:09
              Re: $60 Contest for CT60 Fix mikro May,25.2010-09:12
                Re: $60 Contest for CT60 Fix Crash May,25.2010-22:57
                  Re: $60 Contest for CT60 Fix mikro May,26.2010-11:20
                    Re: $60 Contest for CT60 Fix Crash May,26.2010-13:01
                      Re: $60 Contest for CT60 Fix mikro May,26.2010-13:35
                        Re: $60 Contest for CT60 Fix Crash May,26.2010-14:06
                          CT60 Fix - Very Strange Crash May,29.2010-08:30
                            Re: CT60 Fix - Very Strange Beetle May,29.2010-09:13
                              Re: CT60 Fix - Very Strange mikro May,29.2010-12:12
                              Re: CT60 Fix - Very Strange Crash May,29.2010-13:05
                            Re: CT60 Fix - Very Strange mikro May,29.2010-12:22
                              Re: CT60 Fix - Very Strange Crash May,29.2010-13:21
                                Re: CT60 Fix - still no Crash May,31.2010-23:46
                                  Re: CT60 Fix - still no Didier Méquignon Jun,01.2010-12:55
                                  Re: CT60 Fix - still no Dan Jun,02.2010-02:26
                                    Re: CT60 Fix - still no Crash Jun,02.2010-03:37
                                    Re: CT60 Fix - still no Crash Jun,02.2010-03:53
                                      Re: CT60 Fix - still no Ektus Jun,02.2010-06:41
                                    Re: CT60 Fix - still no Didier Méquignon Jun,02.2010-12:52
                                      Re: CT60 Fix - still no Dan Jun,02.2010-15:14
      Re: Hang during Flash Didier Méquignon May,25.2010-13:11
        Re: Hang during Flash Crash May,25.2010-23:11


Reply to this message
Name:
Topic:
Anti-troll code:

Message:

What's the anti-troll code?
That's your personal code to be able to add comments and messages on the dhs.nu site.
Don't have a code or forgot it? Fix it here.
© 1994-2024 Dead Hackers Society Contact: Anders Eriksson