AVRISP clone from Digikits unreliable after a few months An oscilloscope is definitely one of the things that I put on my "vorrei ma non posso" list (I wish but I can't). The main problem is that I'm definitely a hobbyist who has to...
Saturday, 14 November 2009 - 16:13
AVRISP clone from Digikits unreliable after a few months Yes, the 78L05 is TO92. I did put the capacitors required (I learned that the hard way a long while ago :)), but I also tried a TO220 version (7805CZ? I don't remember exactly...
Saturday, 14 November 2009 - 13:59
AVRISP clone from Digikits unreliable after a few months The programmer now seems to work most of the time, but ultimately the AVRs won't. I tried a simple
int main(void)
{
DDRB = 0xff;
PORTB = 0xff;
while(1);
}
on two different...
AVRISP clone from Digikits unreliable after a few months @stevech: considering I may go through another "halt" phase soon, I'd rather avoid buying an official programmer that costs at least twice as much. :)
@SteveN: if the problem...
Friday, 13 November 2009 - 20:37
Identifying capacitors Wow, and to think I bought these last year!
Do capacitors lose their functionality as time goes by, or are they just as reliable?
Thanks to both of you, you saved me from a lot of...
Monday, 16 March 2009 - 07:38
Identifying capacitors Thank you for your answer. So, when the third digit is a zero, one should consider it as a whole number in nF (ie. 100 nF) rather than the exponent of the value in pF (ie. 10 * 10...
Global variable not working properly after removing printf Thank you for the link, but the avr-libc was enough to write my own myprint_P and to get an acquaintance with the PSTR macro. I brought the .data section down to 264 bytes and all...
Thursday, 14 August 2008 - 17:32
Global variable not working properly after removing printf lfmorrison: I might be, I'm not sure. Certaily I am having strange behaviors even though "state" has been fixed at that point. It seems that it easily changes to weird values that...
Global variable not working properly after removing printf Johan: it is indeed in another file, and it's declared as "extern state" (now I added volatile to it).
It is not below my level, I not that great C programmer. ;)
Indeed, in main...
An oscilloscope is definitely one of the things that I put on my "vorrei ma non posso" list (I wish but I can't). The main problem is that I'm definitely a hobbyist who has to...
Yes, the 78L05 is TO92. I did put the capacitors required (I learned that the hard way a long while ago :)), but I also tried a TO220 version (7805CZ? I don't remember exactly...
The programmer now seems to work most of the time, but ultimately the AVRs won't. I tried a simple int main(void) { DDRB = 0xff; PORTB = 0xff; while(1); } on two different...
That's a great idea, thank you!
@stevech: considering I may go through another "halt" phase soon, I'd rather avoid buying an official programmer that costs at least twice as much. :) @SteveN: if the problem...
Wow, and to think I bought these last year! Do capacitors lose their functionality as time goes by, or are they just as reliable? Thanks to both of you, you saved me from a lot of...
Thank you for your answer. So, when the third digit is a zero, one should consider it as a whole number in nF (ie. 100 nF) rather than the exponent of the value in pF (ie. 10 * 10...
avr-gcc -v tells me I'm using version 4.3.0. I installed the whole thing using AVR MacPack, but that was some time ago. I guess I could upgrade. ;)
Thank you for the link, but the avr-libc was enough to write my own myprint_P and to get an acquaintance with the PSTR macro. I brought the .data section down to 264 bytes and all...
lfmorrison: I might be, I'm not sure. Certaily I am having strange behaviors even though "state" has been fixed at that point. It seems that it easily changes to weird values that...
It seems I got it to work with this in main.c: volatile uint8_t state = STATE_BOOTING; and this in usart.c: volatile extern uint8_t state; (I wonder: why did a simple "...
Johan: it is indeed in another file, and it's declared as "extern state" (now I added volatile to it). It is not below my level, I not that great C programmer. ;) Indeed, in main...
Pages