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I need to source 500mA with an AVR
Bigglez wrote: /cut Thank You, Thank You :)
Thursday, 21 February 2008 - 21:41
I need to source 500mA with an AVR
Thank you all. I'm designing a dot-matrix display. Looks like I will just use a dozen (22) od BC547(NPN bipolar transistor) for each row, and BC639 (simular but 1A) for each...
Thursday, 21 February 2008 - 20:14
O/T your language of 'origin'?
I'm 21 so my list is short :( -C -ASM for ARM, 8051 and AVR -VHDL I wanna be an expert on VHDL and C only :)
Saturday, 22 December 2007 - 11:30
my 1st atmega8 expandable devboard
Part placement is very bad and thats not the way U do it. 78XX has to be on the edge, cristal and 22pF must be as close as possible to to MCU. Port expanders don't have any power...
Friday, 14 September 2007 - 11:31
Another Issue with DS1307s (but I did my homework first)
1) Connect LCD 2) Write youre own I2CStart, I2CStop, I2CSendData, read blabla 3) Address the device (don't miss the address) and after every action display status code (2 digit...
Monday, 10 September 2007 - 22:26
GLCD to slow for tetris?
bobgardner wrote:128x64 pix is only 1K. I'd draw into a 1K ram buffer in the AVR, then copy 1K to the LCD. I bet you can redraw the screen faster than the lcd will respond. Shoot...
Sunday, 19 August 2007 - 20:37
How interrupts really work?
Broxbourne wrote:/ /cut Thank you for you're answer !
Saturday, 28 July 2007 - 02:20
How interrupts really work?
MegaUSBFreak wrote: SEI before the loop and CLI inside the loop works? Can´t believe this. Uhh..that can't work. If I would do that no interrupts would happen after cli...
Saturday, 28 July 2007 - 01:02
How interrupts really work?
sgomes wrote:I don't mean to hijack your thread but I'm super curious. Why do you only want to get interrupted in only one place in your code? I've never even been concerned...
Saturday, 28 July 2007 - 01:00
How interrupts really work?
clawson wrote: /cut Heh.. When I put SEI before for(;;) every thing works fine. When I put sei(); asm(nop); cli(); inside the loop it doesn't work any more.
Friday, 27 July 2007 - 16:53
How interrupts really work?
clawson wrote:By the way, before we get any further please tell us that you are not using the AVR Studio simulator to test this code. It's support for timers is, frankly, abysmal...
Friday, 27 July 2007 - 16:22
How interrupts really work?
Uhh..OK I'll now copy-paste all my code. Please wait a little to delete everthing not important for interrupts. #include #include volatile unsigned char count=0; int main(...
Friday, 27 July 2007 - 16:09