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Re: 关于ccsc
#2
版主
版主


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T= (1/4M)*4*2*(255-55)=0.4ms
Timer0 沒有兩個 Presscaler 所以 *4 不知是哪來的。

4MHz osc = 1uS Tcy
1uS *2 (255-55) = 400uS 這樣才對。

發表於: 2006/10/26 15:39
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关于ccsc
#1
新會員
新會員


查看用戶資訊
第一次上这个网站,发现真是好地方,可以学到很多东西.

现在有些问题想请教大家.

我正在用12f675开发..用 ccs-c,发现ccs-c比汇编容易上手.希望大家能推荐我一些好的电子书,英文中文都可以,谢谢你们.我的邮箱是:albertyoung_box@yahoo.com.cn,希望好心人能发到我的邮箱,或者跟贴给个下载连接.谢谢.

// timer0 initialization
SETUP_TIMER_0(RTCC_INTERNAL|RTCC_DIV_2); //prescale=1:2, internal4 mhz clock
set_timer0(55); // set timer0

so T= (1/4M)*4*2*(255-55)=0.4ms, Is this calculation right???


發表於: 2006/10/26 10:49
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