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Discussion Title Created date
Buck regulator design
I am putsin with buck regulators now making my own (attached circuit) I am using a p-fet instead of the switch shown in the schematic. The gate of the pfet is connected to a 220...
Tuesday, 23 September 2008 - 15:55
Can i use a Zener when driving a fet?
This fet http://www.fairchildsemi.com/ds/... Shows the Vgs max of 3V the plot shows using a 3V zener on the signal line using a 5V output from avr pin. Is this ok to do or should...
Friday, 19 September 2008 - 07:35
Communicating on power lines
I am working on a project to communicate with remote LED lights using just the positive and negative DC power feeding the lights. Attached is a schematic of my circuit designed...
Sunday, 14 September 2008 - 00:37
New to coding in C having debug execution problems
I decided I should learn how to code in C since I want to learn the avr32's. Since there is more help and tuts on the 8bit stuff i figured i would buy smilies book and butterfly...
Wednesday, 20 August 2008 - 07:38
Another 8BIT programmer trying to get up to speed with 32bit
I have waited a year before delving into the 32 bit world. I took a few days and tried for 2 days to get a handle on what to start with and then thought perhaps I will wait...
Monday, 18 August 2008 - 01:26
Nasty negative voltages on PWM pin
Long time no post I have been on a break. Back at it again with a new design for my simulated rotating light. This time it is going to rotate though. I found some 4 RPM motors...
Wednesday, 16 April 2008 - 08:28
External capacitor timer
I am working on a project that will use a button battery. I have selected the Tiny13V using 128k internal clock with a clock prescaler of 256. If I use idle mode and the timer...
Monday, 14 January 2008 - 03:08
I am having a problem with phase corrrect PWM mode 5 Tiny45
The scope and debugger show The OC0A pin set high the first compare match TCNT0=OCR0B and then clears it at top=OCR0A and never sets it again although at OCR0A it reverses and...
Wednesday, 31 October 2007 - 05:59
JTAG Speed and number of breakpoints
I am now using ont of the Futurlec et-AVR mega128 boards and their JTAG programmer, it was 10 x less money than the AVR jtagIce markII I have in my programmers drawer that I never...
Friday, 19 October 2007 - 04:15
Question on Sram datalines
I am using a W24129A static ram, the datasheet does not show how to connect the microcontroller to the sram chip and i have just directly connected the pins. Right now before I...
Tuesday, 16 October 2007 - 09:35
Some trouble with tiny2313 250kbps at 20MHZ USART
20MHZ crystal tiny2313. I am having trouble using the tiny2313 USART to read output from the PC, two problems. Using the code below, I get two bytes output when i am only sending...
Tuesday, 16 October 2007 - 01:20
Com port and serial IO with AVR question
I am having a problem with opening a com port from windows when the serial port is not connected to anything. When I connect it to my stk500 even if it is off the open commands...
Tuesday, 2 October 2007 - 08:42

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