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RS485 + what protocol?
Chosing a physical layer (RS485), a protocol layer (???), and the network baud rate will be dependant on many factors. Your specification of 35 nodes is only a small part of the...
Tuesday, 15 June 2004 - 04:09
C programming - how to split int(16 bits) to 2 char(8bit)
unsigned short MyShort; unsigned char Char1; // lower byte unsigned char Char2; // upper byte // Split short into two char Char1 = MyShort & 0xFF; Char2...
Sunday, 13 June 2004 - 15:30
Studio 4.09 and ATJTAGICE mkII
I believe that you have missed the point tolsen2. The purpose of having a low pin Debugging interface (like DebugWire) is so that you don't have to use a parallel interface for...
Sunday, 13 June 2004 - 15:03
ADC - Accurate?
What is the accuracy of your A/D reference ? If you don't already have one, try adding a precision external reference for your A/D. What is your A/D source impedance ? If it's...
Saturday, 12 June 2004 - 14:31
ADC - Accurate?
What is the accuracy of your A/D reference ? If you don't already have one, try adding a precision external reference for your A/D. What is your A/D source impedance ? If it's...
Saturday, 12 June 2004 - 14:30
Upgrade AVR JTAGICE to AVR JTAGICE mkII
The ATJTAGICE is not upgradeable to the ATJTAGICE mkII. Although they are similar in appearance, a simple software update will not change an ICE to an ICE2.
Saturday, 12 June 2004 - 03:38
Using JTAGICE-2 / DebugWire
I have had the same experience with a MEGA48. I have an FAE working on the issue now and will let you know the resolution. Greg
Saturday, 12 June 2004 - 03:35
example DAC circuit & code
While all of the discussion about PWM vs DAC, LC vs RC filters are all true, utimately it comes down to a few factors. 1. How much money do you want to spend ? 2. What performance...
Thursday, 10 June 2004 - 22:32
example DAC circuit & code
I don't know if you have any cost constraints, but, you can make an inexpensive DAC by using the PWM generator in the 8515. The 8515 has a 10 bit PWM mode which will give you the...
Wednesday, 9 June 2004 - 22:23
Programming ATMEGA48 with STK500
Changing the Oscillator setting for the STK500 (Board Tab) to 1.23MHZ solved the problem. By default, a brand new MEGA48 will be running at 1MHZ. The internal RC runs at 8MHZ but...
Wednesday, 9 June 2004 - 13:06
ATTINY26 multiple timer problem
Update - This appears to be an ICE40 problem. The TOV0 flag in TIFR is definitely set, but the ISR is not being called. A call has been placed with Atmel Tech Support. To be...
Tuesday, 18 May 2004 - 02:15
CRC-7 for MMC Flash
Problem solved ! My problem was that I was treating the CRC register as an 8 bit register instead on a 7 bit. That means that the carry out of this register comes from bit 6 and...
Tuesday, 30 March 2004 - 20:31

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