Well I took the 060 CPU out and plugged it back in again, and 030 mode now seems to be working ok again.
As suggested I delete "nextdisk" and installed NVDI.
CTCM I think I must have killed it some how, if I touch the 3 pins on the left, it will boot in CT60 mode but says CTCM not found. Which is madness since its actually the clock source for the CT60. Though I guess the SPI lines have died for some reason. I have ordered a new chip for it, but for now im using a 50mhz osc.
So heres what I get with NVDI..
boo5.jpg
Its just a uphill battle all the time with it all
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Something had been bugging me about the CT60 for a while... I have "fixed" it and its just booted NVDI, and its not crashed once yet.. I will keep testing to see if I can crash it, but all the known ways for it to crash I have not been able to do yet
Here is the image..
boo6.JPG
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exxos wrote:Something had been bugging me about the CT60 for a while... I have "fixed" it and its just booted NVDI, and its not crashed once yet.. I will keep testing to see if I can crash it, but all the known ways for it to crash I have not been able to do yet
Here is the image..
boo6.JPG
What am I looking for in the image? What did you 'fix'?
exxos wrote:Something had been bugging me about the CT60 for a while... I have "fixed" it and its just booted NVDI, and its not crashed once yet.. I will keep testing to see if I can crash it, but all the known ways for it to crash I have not been able to do yet
Here is the image..
Other than you took the label off one of the chips, I don't see anything.
It was a 1K resistor.. I have sent the image to rodolphe to see what he says. but it will have pulled down the DIR pin on one of the buffers. It could be the CT60 could only access some address ranges, which just so happens allowed GEM to boot, but not much else. Will post back if he replied. Though I thought it was supposed to be there, like a mod to it or something, though I checked loads of CT60/CT63 images on google, and no other CT60 had it on, so i took it off and now my CT60 is working. I really do not get how/why it was there. Though it must have been there since day 1 since my CT60 has never worked
> I do not think any other CT60 owners had this resistor ? I asked on the forum and nobody seen it before. You're wrong !
Many people have this resistor and it is indicated on my web site...
I have several CT here with this resistor !
This resistor is used since 2004 ! And I never heart problems with it.
One question is : w<hat is the value of your resistor ?
Maybe the value is not the good...
Does anyone have any images of those 3 chips (74LVC245), or can tell that manufacture they are ? From what I see on google images, all 3 are Texas chips, but one of mine is a philips, Looking at the datasheet it has longer propagation delays than the texas. While my CT60 seems stable, now and then during boot NVDI crashes. Sometimes it will boot but run very very slow then lock up at GEM. I am wondering as my previous problems were circulating around those chips, that the slower delays of one of the chips is causing these random problems. I never liked mixing manufactures of logic devices due to mismatched delays. So if everyone else has all texas chips then I am going to unsolder the philips one and put a texas one in there.
Mine doesn't have the resister either. One of the reason I went with the USB programer is because I didn't want to modify the CT63. I'll likely never see one again if this one dies. I wonder of there wasn't solder bridge shorting out the pins?
mdivancic wrote:Mine doesn't have the resister either. One of the reason I went with the USB programer is because I didn't want to modify the CT63. I'll likely never see one again if this one dies. I wonder of there wasn't solder bridge shorting out the pins?
It looked ok, I even tested the value of the resistor while it was still in place. Its basically grounding the DIR pin of one of the drivers via a 1K resistor. 1K on 3.3V is almost nothing current wise, I think the xlinix chips have 10mA drive easy, so it shouldn't have been a problem. 1K does not load anything enough to be a problem, but clearly it has casued a huge problem. It could be the IO voltages are simply borderline, and the 1K was just enough to push it over the edge *shrugs*
alanh wrote:Not sure what that resistor is doing between the LVC245's.
EXACTLY! I removed it and the CT60 seems to be behaving now
None on mine too.
But then I do not program my CT63 with the Falc.
Glad you found the issue.
My Stuff: FB/Falcon CT63 CTPCI ATI RTL8139 USB 512MB 30GB HDD CF HxC_SD/ TT030 68882 4+32MB 520MB Nova/ 520STFM 4MB Tos206 SCSI
Shared SCSI Bus:ScsiLink ethernet, 9GB HDD,SD-reader @ http://phsw.atari.org My Atari stuff for sale - click here for list
I dunno what Rodolphe is on about then.. Even the images on his site do not have any resistors, he says its listed on his site but I see no mention of any resistors other than DSP or motherboard overclocking mods. I tested the DIR pin with my scope, its normally HI and pulses low now and then. The resistor would be a pulldown to GND line. I have not tried it with the resistor back in place though. I am wondering if the chips are part damaged, maybe heat damage while the resistor was being bodged on. In anycase, I am going to change the 3 line driver chips and see if it cures the odd random crashes on boot. It does not seem to matter if I run 50mhz or 66mhz.
I have found NVDI *IS* needed to boot up and work correctly. I also found you need EXCEPT60 in the auto folder too. That seems to be the bare minimum to get CT60 to function correctly. Once I have it all sorted out 100% I will upload a "CT60 pack". Then at least if anyone needs it then its a quick set of files to copy and install. I know I will need it as I want to use 2 CF cards, so will be installing everything twice anyway. Hopefully others having issues can use the same files as me, at least gives them a good starting point.
Did you try turning off the cache ?
Some programs will crash if cache is on.
You can set the behaviour in ct60conf - like delay cache 5 secs.
i though that execep60 was needed only in MagiC
but i am not an expert in magic
there a guru here
My Stuff: FB/Falcon CT63 CTPCI ATI RTL8139 USB 512MB 30GB HDD CF HxC_SD/ TT030 68882 4+32MB 520MB Nova/ 520STFM 4MB Tos206 SCSI
Shared SCSI Bus:ScsiLink ethernet, 9GB HDD,SD-reader @ http://phsw.atari.org My Atari stuff for sale - click here for list
wongck wrote:Did you try turning off the cache ?
Some programs will crash if cache is on.
You can set the behaviour in ct60conf - like delay cache 5 secs.
i though that execep60 was needed only in MagiC
but i am not an expert in magic
there a guru here
I will try the cache. It does not do it all the time, it seems to happen mostly when the falcon is first turned on, then a reset after the crash and it normally works fine after that.
exxos wrote:> I do not think any other CT60 owners had this resistor ? I asked on the forum and nobody seen it before. You're wrong !
Many people have this resistor and it is indicated on my web site...
I have several CT here with this resistor !
This resistor is used since 2004 ! And I never heart problems with it.
One question is : w<hat is the value of your resistor ?
Maybe the value is not the good...
Does anyone have any images of those 3 chips (74LVC245), or can tell that manufacture they are ? From what I see on google images, all 3 are Texas chips, but one of mine is a philips, Looking at the datasheet it has longer propagation delays than the texas. While my CT60 seems stable, now and then during boot NVDI crashes. Sometimes it will boot but run very very slow then lock up at GEM. I am wondering as my previous problems were circulating around those chips, that the slower delays of one of the chips is causing these random problems. I never liked mixing manufactures of logic devices due to mismatched delays. So if everyone else has all texas chips then I am going to unsolder the philips one and put a texas one in there.
mdivancic wrote:I'm not running execep60, just xControl and NVDI. What does execep60 do?
Well for me it stops things from crashing Though as wongck suggested turning off the cache, it could have been that was my last problem. Still working on it, but it seems ok so far, so I will try without exept060.tos ...
TheNameOfTheGame wrote:
Here is mine...all Texas Instruments LVC245A.
Thanks No resistor and all texas parts again. I found another version of the datasheets and the philips one isn't too far off speed wise. My problems could be the cache as suggested.. so still sussing things out
