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x^y with asm
I think there may be a better way, but I don't know what it is; there was a thread recently about calculating square roots with some sort of double shift and subtract idea. I'd be...
Tuesday, 3 February 2004 - 21:09
Interupt and timer question
How soon after the pulses stop do you need to detect the fact? Do the pulses always stop either high or low or is it variable? A simple method would be to have the signal generate...
Sunday, 1 February 2004 - 20:34
instigate bootload from remote device?
Colin, That's right, "As I understand it MegaLoad (and most others) check the serial port at >>start-up>reset<< and check (like MegaLoad does) then you'll be fine, since you...
Sunday, 1 February 2004 - 19:42
instigate bootload from remote device?
Lee, I don't want to get embroiled in a big argument with you, especially since you seem to be the most prolific poster in this forum, answering everyone's questions. But, I've...
Sunday, 1 February 2004 - 19:32
instigate bootload from remote device?
"Then you have the equivalent of an ISP, don't you? Not a "bootloader"." No, because I can load programs via the same serial comms connector that the target application uses (with...
Sunday, 1 February 2004 - 17:26
Auto Off?
I agree with Steve, a high on PowerDown turns the regulator on.
Sunday, 1 February 2004 - 13:55
instigate bootload from remote device?
You're probably all correct, and I'm being too cautious, but most motherboard BIOSes have been extensively tested before distribution (at least I hope so). I tend to use...
Sunday, 1 February 2004 - 13:52
instigate bootload from remote device?
P.S. I fail to see how "telling the running code to do a reset (by letting the watchdog time out)" adds anything to the equation. It still supposes that the application code is...
Saturday, 31 January 2004 - 23:44
instigate bootload from remote device?
Well, 99% of the time it will work O.K., but you only need one failed or interrupted bootload and that's it. The application code that's supposed to kick off the boot isn't there...
Saturday, 31 January 2004 - 23:33
instigate bootload from remote device?
Any sofware method of instigating a bootloader is doomed to failure, if you want my opinion. What happens if the bootloading process is interrupted for any reason? You might never...
Saturday, 31 January 2004 - 10:30
Master Slave Comms - How Far?
I'd try it with 10 feet first before assuming it'll work with 5.
Friday, 30 January 2004 - 15:32
Master Slave Comms - How Far?
Seems to me that if you put buffers on the transmitting board, you would still be able to use the circuit programming. The buffer input would be a small extra load on the...
Thursday, 29 January 2004 - 18:33