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| From: | Matthew MacClary |
| Subject: | Re: [avr-chat] sample code for ATmega48? |
| Date: | Fri, 1 Jun 2007 11:02:01 -0700 |
On 6/1/07, address@hidden <address@hidden> wrote:
> #undef F_CPU > #define F_CPU 20000000UL /* 20MHz */ My understanding is that, by default, the ATmega48 will run at 1MHz. To get proper timing, should I change the value of F_CPU to 1000000UL?
Yes, you should make that change if you want to run at 1MHz, otherwise the delay will be 20 times longer than expected. -Matt
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