| 17 Jan 2012 08:51:33 pm by AHelper |
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Doing a simple calculator doesn't require the flash, so the chip is fine. If there was a problem, the OS would completely freak out as you cannot erase a sector with a damaged bit.
A safer method than steps a and b is to write 0x0000 to 0x53 (someone correct me, it's either that or 0x56). The only problem with sending and stopping it is that the certificates can get damaged, and only if you don't stop the transfer very early on.
If you really don't want to do any programming or stopping transfers, I can modify my tiny os (COS) to simply invalidate the OS. |
| 17 Jan 2012 09:54:27 pm by KermMartian |
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| That was I was thinking as well, which is why I tossed in Flash-reading as an afterthought. Actually, that's not true, performing a calculation absolutely requires Flash, since every part of the OS is on the Flash chip. |
| 17 Jan 2012 10:33:05 pm by AHelper |
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| I mean there is no flash writing per calculation. If there was, o_O your flash chip would die in no time. |
| 17 Jan 2012 11:49:02 pm by JPfowl |
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| For the time being, I have decided to get a new calculator. I will try the posted solutions at a later time. I borrowed a second calculator and I still have the same issues in sending over the program though. |
| 18 Jan 2012 12:24:39 am by KermMartian |
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AHelper: but it could easily be crashing reading some bad data out of Flash.
| JPfowl wrote: |
| For the time being, I have decided to get a new calculator. I will try the posted solutions at a later time. I borrowed a second calculator and I still have the same issues in sending over the program though. |
Can you share the program in question with us? |
| 18 Jan 2012 12:28:05 am by JPfowl |
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| Got the sending error fixed. Had to send from a different computer. The computer in question would start sending the file, then lose connection partway through sending. Is it possible that this loss of communication, if done repeatedly, could damage the flash? |
| 18 Jan 2012 01:13:03 am by KermMartian |
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| JPfowl wrote: |
| Got the sending error fixed. Had to send from a different computer. The computer in question would start sending the file, then lose connection partway through sending. Is it possible that this loss of communication, if done repeatedly, could damage the flash? |
It's certainly possible, although I'd say someone improbable.  |
| 18 Jan 2012 08:52:14 am by JPfowl |
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| Well there was the constant loss of communication while sensing and my calculator reset itself every time. It probably reset itself 50 times. |
| 18 Jan 2012 09:17:26 am by KermMartian |
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| JPfowl wrote: |
| Well there was the constant loss of communication while sensing and my calculator reset itself every time. It probably reset itself 50 times. |
Hmm, there was already something seriously wrong with your calculator. Actually, it DOES do a set of Flash page writes while sending the computer its variables listing (which BrandonW has ranted and raved about, as it's useless and wasteful), so something could have gotten damaged there, but it's of course wrong that it was having such problems in the first place. |
| 15 Jun 2012 04:59:25 pm by EpicLPer |
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I'm getting this error code too. I don't know why, it just happens after plug it in. When I try to send something to the calculator, it resets the connection and on the display there's a symbol for "downloading". It won't dissapear after plug the calc off, and after pressing clear it restarts with RAM clearing.
Also another USB Port won't work. I can't do anything now over computer...
Sorry for my bad english ^^ |
| 15 Jun 2012 06:38:49 pm by blue_bear_94 |
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| Did you try new batteries? |
