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Discussion Title Created date
help with asm and a global var.
I didn't think this was going to be as tricky as its is for me. But I just want to set a variable to zero. I have it declared in my S files as .extern rejected ans tried a few...
Thursday, 22 October 2009 - 20:51
how to properly shut of SPCR ?
I'm using the SPCR like so. SPCR = (1<<SPE)|(1<<MSTR)|(1<<SPR1)|(1<<SPR0)|(1<<DORD)|(1<<CPHA)|(1<<CPOL) I only want to use it if a...
Sunday, 18 October 2009 - 03:24
burning troubles, need some help.
I have now 8 bad atmega 168 chips, I never had this trouble with 8's but 168 seem to be a pain for me.. At any rate It seems my fuse byte were off and before I knew that was the...
Sunday, 18 October 2009 - 02:23
usb programmers, where to get a PID?
Hi, if anyone can help me I would appreciate it. I need to buy a PID for my usb device. I dont need many, just one or two.. I tried this site many times. http://www.mcselec.com/...
Thursday, 15 October 2009 - 22:17
chips that go bad durring burning.
Hi, I had a problem during the burning proses where a device attached to portB was pulling some leads low. Normally I dont have issue with that but in this case it lock two chips...
Thursday, 17 September 2009 - 19:57
strange Port problem with my atmeg chip.
Ok I have a problem that is electronically affecting port B and C of my atmeg168. I cannot find any rhyme or reason to this and I hope talking about it helps me resolve it as I'm...
Tuesday, 8 September 2009 - 22:23
ranch op code?
Is there an o-code to branch (br) that will work like an BRNE with out the test? I need this in one clock, not RJMP that takes two.
Thursday, 3 September 2009 - 18:54
help with pin-change int
I'm setting my pin-change int like so, then I wait. PCICR = (1<<PCIE1);// watch PORTC.5 PCMSK1 = (1<<PCINT12); _delay_us(60); The trouble I'm having is that it...
Tuesday, 1 September 2009 - 18:35
troubles with load from avr, need advice.
Hi, I have an atmega 168 that supplies a device that should not pull much more then 100 Milli amps(should be able to measure this load soon). Normal I supply this device with USB...
Monday, 24 August 2009 - 21:41
One data type of the same size as another, savs flash size
I have read some great info about proper data types, when to use and what to use. More specifically how to keep the over all flash size down. But there is one thing that remains,...
Wednesday, 5 August 2009 - 00:32
line-break ( asm file )
is there a way to add a line-break in an .s ( asm ) file? nop \n nop vs nop nop ?
Monday, 3 August 2009 - 17:14
how to count a cycle of code [ and Dream cast coding ]resvd
I have a project that is very time sensitive. Each cycle must be monitored as I have to do things with in a nop. I need some help understanding what each lines costs me. Can...
Saturday, 18 July 2009 - 23:55