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Is there any work around to use DBUG12 made for MC68HC912D60A; e.g. to apply SRecCvt.exe and move_s19.exe to the S19 files that I have written and to modify...
542
Louis Eames
louis.eames@...
Aug 1, 2002 12:02 pm
Hi, My problem is as follows: I load my code by programming an external flash into a brand new 68HC812A4 and it works fine. But when i load my code into a...
543
Gordon Doughman
g.doughman@...
Aug 1, 2002 6:49 pm
Sorry, it's just not that simple..... Regards, Gordon ... -- =============================================================== Gordon Doughman Ph:...
544
Zámbó Béla
zbela@...
Aug 1, 2002 8:28 pm
Armand, Brent, Mike, Stephen, Thanks for your suggestions Béla...
545
James M. Knox
jknox@...
Aug 2, 2002 2:51 pm
I swear that I must have changed my mind on this one a dozen times. Every time I think I know the answer I run into a case that seems different. So... What is...
546
Medeiros, Armand
AMedeiros@...
Aug 2, 2002 4:12 pm
I bit diddle the I/O on the 912b32 all day long without any problems. It is run single-chip mod and the configuration registers are programmed appropriately. ...
547
James M. Knox
jknox@...
Aug 2, 2002 5:55 pm
... I probably wasn't very clear on the problem. The issue is not being able to change the bits, but rather being able to change the output latch with the DDR...
548
Medeiros, Armand
AMedeiros@...
Aug 2, 2002 5:59 pm
Ahhhh! I do know that if an I/O bit is defined as "Input", that any read from that bit is done with the output latch feedback disabled...so I don't know how...
It has become obvious that DBug12 is not available for MC68HC912DG128A. Is there any other possibility to run programs merely in RAM? I aim at the solution...
Define the interrupt vector in flash to point to a fixed Ram locations. These Ram location points to your ISR routine which are changeable jump table. Below...
551
Kelley, Dale
Dale.Kelley@...
Aug 2, 2002 7:57 pm
If you are not shipping the CPU to a customer, don't worry about how many times you reprogram at room temp. We do it hundreds of times in development, with no...
552
Stephen Trier
sct@...
Aug 2, 2002 8:15 pm
... Yes, it is generically true. The pin is in input mode, so you are reading the input value. That's what it is supposed to do. Since you can't read back...
553
Stephen Trier
sct@...
Aug 2, 2002 8:15 pm
For prototyping purposes, don't worry about wearing out the flash memory. At room temperature and with well-regulated power supplies, it will last much longer...
554
Killingsworth, Steve
steve.killingsworth@...
Aug 2, 2002 8:56 pm
Port control lessons learned and rules for well behaved port control: 1. ALWAYS use a mirror variable that reflects the state of the port data as you last...
555
Medeiros, Armand
AMedeiros@...
Aug 2, 2002 9:01 pm
Yes. Good rules to live by. In many applications, my ISR blurts out a burst of RAM to PORT data every so often and does read bursts of port to RAM as well....
556
James M. Knox
jknox@...
Aug 2, 2002 10:23 pm
... It has been a long week, but still I must be doing the worlds worst job of explaining my question. <G> I have no interest in what the bit reads back as,...
557
Medeiros, Armand
AMedeiros@...
Aug 2, 2002 11:09 pm
As I recall the structure of the I/O cell, this is the case. In fact, there is some references in the app notes that do exactly that. (preset outputs then...
558
david.katz@...
Aug 3, 2002 2:15 am
I'm not that familiar with the 68hc912DG128 but I have alot of experience with the 68hc12B32 and 68hc12A4. I have always done my development out of flash...
hi I'm using motorola's 9S12DP256 micro-controller for my project.i connected CAN bus between two evaluation boards.i transmitted some bits from one board to...
hi all I'm using motorola's 9S12DP256 micro-controller for my project.could you suggest me the best method which takes very very less time to execute and gives...
I'm sure others here can give you a more complete response, but I use a simple checksum scheme. It's quite fast to computer the checksum, which I store in a...
Simple checksums provide an elemental degree of integrity verification but quickly break down in the presence of double-bit and other multiple-bit errors. A...
Hi Bob, ... I use a two-checksum approach, where one is derived by XORing and the other is derived by summing. Since two different techniques are used, I...
I would like a copy of the CRC code and the checksum code, I'm new to microprocessor programming and want to learn as much as possible. Stephen ... From: Paul...
I have a question I'm sure should case some interesting answers, I'm building engine control module and am having problems with EMI resetting my processor,...
Paul -- The "two-checksum" method (perhaps, the "Johnson" method ;-) ) is a very interesting approach! Like you, I have not delved into the mathematical rigor...
568
Michael J. Pont
Michael.Pont@...
Aug 5, 2002 12:49 pm
Stephen, We've done some work on this issue. This paper may be of interest: Ong, H.L.R, Pont, M.J. and Peasgood, W. (2001) "Do software-based techniques...
What were your findings and thank you, I have read this paper and its very interesting. Were you successful in your endeavours ... From: Michael J. Pont...
570
Michael J. Pont
Michael.Pont@...
Aug 5, 2002 1:35 pm
Stephen, The basic conclusion was that using the "NOP Fill" technique(described in paper) is effective. Please note: we didn't invent this technique (many...
Scheduled Maintenance:
We are undertaking some essential, but extensive maintenance to improve Yahoo!
Calendar. Your Group Calendar is being migrated to a much improved version of
Yahoo! Calendar. During the maintenance period, you may not have access to your
Groups Calendar.
We sincerely apologize for this inconvenience. Your Groups Calendar is in great
shape and we are working to have it available again as quickly as possible
- Yahoo! Groups & Yahoo! Calendar Team
