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RE: [avr-chat] New Programmer, Small Program, F_CPU for Atmega644
From: |
Weddington, Eric |
Subject: |
RE: [avr-chat] New Programmer, Small Program, F_CPU for Atmega644 |
Date: |
Fri, 21 Mar 2008 15:46:51 -0600 |
> -----Original Message-----
> From: address@hidden
> [mailto:address@hidden
> On Behalf Of Robert L Cochran
> Sent: Friday, March 21, 2008 3:29 PM
> To: avr-chat
> Subject: [avr-chat] New Programmer, Small Program, F_CPU for Atmega644
>
> I just built one of Limor Fried's USBtinyISP programmers. ( shown on
> http://www.adfruit.com/usbtinyisp ). I'd like to actually test the
> programmer on a Fedora 7 computer.
>
> I have an Atmega644 in the DIP package that I could breadboard with a
> quick LED blinking circuit. Since I'm doing this in Linux,
> I'm not sure
> what is a good value to assign to F_CPU, and yes, I did check the 376
> page data sheet, but I am still not sure how to calculate
> this value --
> sorry.
>
Hi Bob,
F_CPU is just a defined value which is your CPU Frequency in Hertz. This
symbol can then be used in your application if you need it.
- [avr-chat] New Programmer, Small Program, F_CPU for Atmega644, Robert L Cochran, 2008/03/21
- RE: [avr-chat] New Programmer, Small Program, F_CPU for Atmega644,
Weddington, Eric <=
- Re: [avr-chat] New Programmer, Small Program, F_CPU for Atmega644, Joerg Wunsch, 2008/03/22
- Re: [avr-chat] New Programmer, Small Program, F_CPU for Atmega644, Robert L Cochran, 2008/03/23
- Re: [avr-chat] New Programmer, Small Program, F_CPU for Atmega644, Joerg Wunsch, 2008/03/24
- Message not available
- Re: [avr-chat] AVR power supply current, Robert L Cochran, 2008/03/24