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Discussion Title Created date
SCK pin is stuck high / CLK I/O setup question
How do I drive SCK properly? Mine is stuck high and I can't get the external crystal to show on it. (M128 >> PB1 is SCK). However, XTAL1 shows a perfect clock signal at 14.7456...
Thursday, 22 July 2004 - 15:27
What is the bandwidth of my data ???
OK, a really newbie question, but I am stumped A serial device 9600 baud A frame consists of 5 bytes; a packet consists of 25 frames. Three packets (75 frames) are transmitted...
Tuesday, 20 July 2004 - 00:18
Did I calculate this time base error correctly?
I would like your help on a timing problem. I have a M128 with a 14.7456 Mhz crystal. Timer 0 is 8 bit, set for overflow at 255. 14745600 Hz = period of 67.88 e-9 seconds 14745600...
Tuesday, 13 July 2004 - 15:40
How do I increment only PORTB.1 thru PORTB.4 with ++ ?
I want to increment 4 LEDs on the STK500 in sequence but with only PORTB.1-.4; How do I write this code in C? This will toggle all LEDs on PORT B for me ++PORTB; , but I don't...
Tuesday, 13 July 2004 - 11:11
Address question $1B ($3B)
Hello, The data sheet lists the address of PORTA as Quote: $1B ($3B) for the M128 What do these mean :?: Thank you.
Wednesday, 7 July 2004 - 21:36
VFD/LCD cursor shift and display shift difference?
What is the difference between cursor shift and display shift?
Sunday, 4 July 2004 - 18:09
bitfield structure compile problem: bit vs. char
Why won't CodevisionAVR will compile this... typedef struct { bit bit_0:1; bit bit_1:1; bit bit_2:1; bit bit_3:1; bit bit_4:1; bit bit_5:1; bit bit_6:1; bit bit_7:1; }bits; but...
Saturday, 3 July 2004 - 20:46
Hot LM317M on STK500 during LCD project
Hi Freaks... I have a STK500 and just finished a LCD interface using http://www.allelectronics.com/sp... It works fine. But the LM317M on the STK500 gets really warm, and I am...
Monday, 28 June 2004 - 00:56
'garbage' glitches during programming AVR devices
Given proper code and programming environment, what is the chance of a 'glitch' developing somewhere on the AVR device that will result in a 'garbage program'? I just spent 60+...
Saturday, 26 June 2004 - 00:35
itoa((dir_first(-4,-8)),dir_result); a derivative function
I am not certain where this problem is coming from. The code below functions well if the rate of change is positive, but will not give a negative rate change for 1st dir. //**...
Thursday, 24 June 2004 - 20:36
OT: Space Walk today
A Russian and American astronaut will make an untethered space walk today to replace a lunch box size power unit outside the international space station. Godspeed to the crew.
Thursday, 24 June 2004 - 14:04
Why do you need a digital oscilliscope?
I have an old Tektronix analog surplus scope and use it occasionally, but really when it comes down to it, I don't think it is an 'essential' tool for me. Sure, it's fun to see...
Wednesday, 23 June 2004 - 16:42

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