51串行波特率计算

标准波特率晶振（M）12T自动重装数1T自动重装数

240022542304800225524396002255249192002256253576002256255

240042522044800425423096004255243192004255249576004256254240062491784800625321796006254236192006255246576006256253240011.0592244112480011.0592250184960011.05922532201920011.05922542385760011.059225525024001224310048001224917896001225321719200122542365760012255249240018.43223616480018.432246136960018.4322511961920018.4322532265760018.432255246240022.1184232-32480022.1184244112960022.11842501841920022.11842532205760022.1184255244240024230-5748002424310096002424917819200

253

217

基于STC12C52系列12T模式对时钟12分频，目的是兼容传统的89C51的12分频模式

5760024255243

12T误差1T误差12T方式2,SMOD=012T方式2,SMOD=1

8.51%0.16%3125062500

-45.75%-6.99%3125062500

#DIV/0!8.51%3125062500

8.51%0.16%62500125000

-45.75%-6.99%62500125000

#DIV/0!8.51%62500125000 -6.99%0.16%93750187500

8.51%0.16%93750187500

-18.62%-2.34%93750187500

#DIV/0!8.51%93750187500

0.00%0.00%172800345600

-25.00%0.00%172800345600

-50.00%0.00%172800345600

0.16%0.16%187500375000

-6.99%0.16%187500375000

8.51%0.16%187500375000

-18.62%-2.34%187500375000

-45.75%-6.99%187500375000

0.00%0.00%288000576000

-16.67%0.00%288000576000

0.00%0.00%345600691200

0.16%-0.16%375000750000

0.16%0.16%375000750000

-6.99%0.16%375000750000

8.51%0.16%375000750000