请问如何为PIC10F222实现软件PWM？

该PIC10F222有三个专用的I/O引脚，可配置为数字引脚。为了使用端口引脚作为输出，必须清除TIS中的相应方向控制位（＝0）。写入任何可用的GPIO引脚，并按照该序列创建PWM信号：-设置端口引脚高Delay（关断时间）-设置端口引脚低重复上述三个步骤使用while（1）循环。由于该设备具有专用8位定时器内置，考虑使用定时器产生固定延迟。时期。这将决定PWM信号关断时间，也允许您轻松地改变PWM输出的占空比。在另一方面，考虑使用具有硬件PWM的PIC10F320／322。



      以下为原文

    The PIC10F222 has three dedicated I/O pins that can be configured as digital pins.   To use a port pin as output, the corresponding direction control bit in TRIS must be cleared (= 0). Write to any of the available GPIO pins and follow the sequence to create a PWM signal:
 
-Set port pin HIGH
-Delay ( off time)
-Set port pin LOW
-Repeat the above three steps using while(1) loop. 
Since this device has a dedicated 8-bit timer built in, consider using the timer to generate the fixed delay period. This will decide the PWM signal off time and also allow you to change the duty cycle of the PWM output easily.
 
On a side note, consider using the PIC10F320/322 which has a hardware PWM on it.
 
 

OP多久才会知道这是怎么回事？眨眼：



      以下为原文

   


How long until the OP figures out how wrong this is?  wink:

抱歉，这是一个编辑：设置端口引脚高Delay（准时）-清除端口引脚LOW Delay（关闭时间）



      以下为原文

    Sorry, here's an edit:
 
-Set port pin HIGH
-Delay ( ON time)
-Clear port pin LOW
-Delay ( OFF time)

它应该给予PWM信号在几乎100%占空比。格林先生：



      以下为原文

    It should give a PWM signal at almost 100% duty cycle. mr green: