熔丝位(Fuse)快速入门

AVR Studio 中 STK500 处理熔丝位有巨大的优势：它是以功能组合让用户配置。
这种方式与小马(PnoyProg2000,SL-ISP)相比，具有以下的优势(优势是如此明显，可以用“巨大优势”来形容)：


     1. 有效避免因不熟悉熔丝位让芯片锁死 (这是初学者的恶梦)
     2. 不需要靠记忆与查文档，就能配置熔丝位(这也是初学者的恶梦)这是我们网站为何推荐使用STK500下载器的又一原因。

操作界面如下： (注意：下图中， 打勾的表示选中，代表0。没有打勾的表示1 )。

上图的资料整理如下(该表下面有中文翻译与说明)：

On-Chip Debug EnabLED; [OCDEN=0] JTAG Interface Enabled; [JTAGEN=0] Serial program downloading (SPI) enabled; [SPIEN=0] Preserve EEPROM memory through the Chip Erase cycle; [EESAVE=0] Boot Flash section size= 128 words Boot start address=$1F80; [BOOTSZ=11] Boot Flash section size= 256 words Boot start address=$1F00; [BOOTSZ=10] Boot Flash section size= 512 words Boot start address=$1E00; [BOOTSZ=01] Boot Flash section size= 1024 words Boot start address=$1C00; [BOOTSZ=00] ; default value Boot Reset vector Enabled (default address=$0000); [BOOTRST=0] CKOPT fuse (operation dependent of CKSEL fuses); [CKOPT=0] Brown-out detection level at VCC=4.0 V; [BODLEVEL=0] Brown-out detection level at VCC=2.7 V; [BODLEVEL=1] Brown-out detection enabled; [BODEN=0] Ext. CLOCk ; Start-up time: 6 CK + 0 ms; [CKSEL=0000 SUT=00] Ext. Clock ; Start-up time: 6 CK + 4 ms; [CKSEL=0000 SUT=01] Ext. Clock; Start-up time: 6 CK + 64 ms; [CKSEL=0000 SUT=10] Int. RC Osc. 1 MHz ; Start-up time: 6 CK + 0 ms; [CKSEL=0001 SUT=00] Int. RC Osc. 1 MHz ; Start-up time: 6 CK + 4 ms; [CKSEL=0001 SUT=01] Int. RC Osc. 1 MHz ; Start-up time: 6 CK + 64 ms; [CKSEL=0001 SUT=10]; default value Int. RC Osc. 2 MHz ; Start-up time: 6 CK + 0 ms; [CKSEL=0010 SUT=00] Int. RC Osc. 2 MHz ; Start-up time: 6 CK + 4 ms; [CKSEL=0010 SUT=01] Int. RC Osc . 2 MHz ; Start-up time: 6 CK + 64 ms; [CKSEL=0010 SUT=10] Int. RC Osc . 4 MHz ; Start-up time: 6 CK + 0 ms; [CKSEL=0011 SUT=00] Int. RC Osc . 4 MHz ; Start-up time: 6 CK + 4 ms; [CKSEL=0011 SUT=01] Int. RC Osc . 4 MHz ; Start-up time: 6 CK + 64 ms; [CKSEL=0011 SUT=10] Int. RC Osc. 8 MHz ; Start-up time: 6 CK + 0 ms; [CKSEL=0100 SUT=00] Int. RC Osc. 8 MHz ; Start-up time: 6 CK + 4 ms; [CKSEL=0100 SUT=01] Int. RC Osc. 8 MHz ; Start-up time: 6 CK + 64 ms; [CKSEL=0100 SUT=10] Ext. RC Osc. - 0.9 MHz ; Start-up time: 18 CK + 0 ms; [CKSEL=0101 SUT=00] Ext. RC Osc . - 0.9 MHz ; Start-up time: 18 CK + 4 ms; [CKSEL=0101 SUT=01] Ext. RC Osc. - 0.9 MHz ; Start-up time: 18 CK + 64 ms; [CKSEL=0101 SUT=10] Ext. RC Osc . - 0.9 MHz ; Start-up time: 6 CK + 4 ms; [CKSEL=0101 SUT=11] Ext. RC Osc. 0.9 MHz - 3.0 MHz ; Start-up time: 18 CK + 0 ms; [CKSEL=0110 SUT=00] Ext. RC Osc . 0.9 MHz - 3.0 MHz ; Start-up time: 18 CK + 4 ms; [CKSEL=0110 SUT=01] Ext. RC Osc. 0.9 MHz - 3.0 MHz ; Start-up time: 18 CK + 64 ms; [CKSEL=0110 SUT=10] Ext. RC Osc . 0.9 MHz - 3.0 MHz ; Start-up time: 6 CK + 4 ms; [CKSEL=0110 SUT=11] Ext. RC Osc . 3.0 MHz - 8.0 MHz ; Start-up time: 18 CK + 0 ms; [CKSEL=0111 SUT=00] Ext. RC Osc . 3.0 MHz - 8.0 MHz ; Start-up time: 18 CK + 4 ms; [CKSEL=0111 SUT=01] E xt. RC Osc. 3.0 MHz - 8.0 MHz ; Start-up time: 18 CK + 64 ms; [CKSEL=0111 SUT=10] Ext. RC Osc. 3.0 MHz - 8.0 MHz ; Start-up time: 6 CK + 4 ms; [CKSEL=0111 SUT=11] Ext. RC Osc . 8.0 MHz - 12.0 MHz ; Start-up time: 18 CK + 0 ms; [CKSEL=1000 SUT=00] Ext. RC Osc. 8.0 MHz - 12.0 MHz ; Start-up time: 18 CK + 4 ms; [CKSEL=1000 SUT=01] Ext. RC Osc. 8.0 MHz - 12.0 MHz ; Start-up time: 18 CK + 64 ms; [CKSEL=1000 SUT=10] Ext. RC Osc. 8.0 MHz - 12.0 MHz ; Start-up time: 6 CK + 4 ms; [CKSEL=1000 SUT=11] Ext. Low-Freq. Crystal ; Start-up time: 1K CK + 4 ms; [CKSEL=1001 SUT=00] Ext. Low-Freq. Crystal ; Start-up time: 1K CK + 64 ms; [CKSEL=1001 SUT=01] Ext. Low-Freq. Crystal ; Start-up time: 32K CK + 64 ms; [CKSEL=1001 SUT=10] Ext. Crystal/Resonator Low Freq .; Start-up time: 258 CK + 4 ms; [CKSEL=1010 SUT=00] Ext. Crystal/Resonator Low Freq .; Start-up time: 258 CK + 64 ms; [CKSEL=1010 SUT=01] Ext. Crystal/Resonator Low Freq .; Start-up time: 1K CK + 0 ms; [CKSEL=1010 SUT=10] Ext. Crystal/Resonator Low Freq .; Start-up time: 1K CK + 4 ms; [CKSEL=1010 SUT=11] Ext. Crystal/Resonator Low Freq .; Start-up time: 1K CK + 64 ms; [CKSEL=1011 SUT=00] Ext. Crystal/Resonator Low Freq .; Start-up time: 16K CK + 0 ms; [CKSEL=1011 SUT=01] Ext. Crystal/Resonator Low Freq .; Start-up time: 16K CK + 4 ms; [CKSEL=1011 SUT=10] Ext. Crystal/Resonator Low Freq .; Start-up time: 16K CK + 64 ms; [CKSEL=1011 SUT=11] Ext. Crystal/Resonator Medium Freq .; Start-up time: 258 CK + 4 ms; [CKSEL=1100 SUT=00] Ext. Crystal/Resonator Medium Freq .; Start-up time: 258 CK + 64 ms; [CKSEL=1100 SUT=01] Ext. Crystal/Resonator Medium Freq .; Start-up time: 1K CK + 0 ms; [CKSEL=1100 SUT=10] Ext. Crystal/Resonator Medium Freq .; Start-up time: 1K CK + 4 ms; [CKSEL=1100 SUT=11] Ext. Crystal/Resonator Medium Freq .; Start-up time: 1K CK + 64 ms; [CKSEL=1101 SUT=00] Ext. Crystal/Resonator Medium Freq .; Start-up time: 16K CK + 0 ms; [CKSEL=1101 SUT=01] Ext. Crystal/Resonator Medium Freq .; Start-up time: 16K CK + 4 ms; [CKSEL=1101 SUT=10] Ext. Crystal/Resonator Medium Freq .; Start-up time: 16K CK + 64 ms; [CKSEL=1101 SUT=11] Ext. Crystal/Resonator High Freq .; Start-up time: 258 CK + 4 ms; [CKSEL=1110 SUT=00] Ext. Crystal/Resonator High Freq .; Start-up time: 258 CK + 64 ms; [CKSEL=1110 SUT=01] Ext. Crystal/Resonator High Freq .; Start-up time: 1K CK + 0 ms; [CKSEL=1110 SUT=10] Ext. Crystal/Resonator High Freq .; Start-up time: 1K CK + 4 ms; [CKSEL=1110 SUT=11] Ext. Crystal/Resonator High Freq .; Start-up time: 1K CK + 64 ms; [CKSEL=1111 SUT=00] Ext. Crystal/Resonator High Freq .; Start-up time: 16K CK + 0 ms; [CKSEL=1111 SUT=01] Ext. Crystal/Resonator High Freq .; Start-up time: 16K CK + 4 ms; [CKSEL=1111 SUT=10] Ext. Crystal/Resonator High Freq .; Start-up time: 16K CK + 64 ms; [CKSEL=1111 SUT=11]

上表的英文翻译说明如下：

英文

本文关键字：暂无联系方式AVR单片机，单片机-工控设备 - AVR单片机