Re: [avr-chat] New Programmer, Small Program, F_CPU for Atmega644

[Robert L Cochran]

Joerg Wunsch wrote:
>
> Since it's small enough to post, here's the hex file when compiling
> for an ATmega644:
>
> :100000000C9438000C9455000C9455000C94550039
> :100010000C9455000C9455000C9455000C9455000C
> :100020000C9455000C9455000C9455000C945500FC
> :100030000C9455000C9455000C9455000C945700EA
> :100040000C9455000C9455000C9455000C945500DC
> :100050000C9455000C9455000C9455000C945500CC
> :100060000C9455000C9455000C9455000C945500BC
> :1000700011241FBECFEFD0E1DEBFCDBF11E0A0E065
> :10008000B1E0ECE6F1E002C005900D92A030B107BE
> :10009000D9F711E0A0E0B1E001C01D92A330B10793
> :1000A000E1F70E94AB000C94B5000C9400001F9285
> :1000B0000F920FB60F9211242F933F938F9380913D
> :1000C0000001882379F420910101309102012F5F12
> :1000D0003F4F309302012093010183E02F3F380707
> :1000E000D9F417C0813029F020910101309102012B
> :1000F00013C0209101013091020121503040309312
> :100100000201209301012115310531F41092000103
> :1001100003C081E080930001309389002093880020
> :100120008F913F912F910F900FBE0F901F901895B8
> :1001300083E880938000E1E8F0E080818160808343
> :10014000109289001092880080E28AB981E0809341
> :100150006F00789408950E94980083B7816083BFF0
> :0C016000889583B78E7F83BFF8CFFFCF58
> :00000001FF
>
>   
Thanks Joerg for posting this. I have a breadboard circuit ready to test
with this hex file. I was planning to use a lithium polymer battery that
pumps out 12v at 1300 mA. I connected that to a power supply board which
will give me 5v output and 1100 mA current. That is way too much current
for the Atmega644, isn't it? The absolute maximum ratings on the
datasheet list 200 mA as the maximum on VCC and GND. Of the "wall wart"
power supplies I am using, I have one that puts out 5v and I've measured
350 mA current. So I need to cut down the current for the AtMega 644
device, right? I can reduce the current with resistors? I will Google to
learn how to do this.

Thanks

Bob Cochran