topic Input Capture of MC68HC908JK3E in 8-bit Microcontrollers https://community.nxp.com/t5/8-bit-Microcontrollers/Input-Capture-of-MC68HC908JK3E/m-p/576948#M22113 <HTML><HEAD></HEAD><BODY><P>I use the chip is MC68HC908JK3E, select the timer's channel 1 to capture the external input square wave signal (100-250Hz) period. At the same time, according to the different period, I use timer's channel 0 output adjustable duty cycle square wave signal (20KHz). In the program, I constantly modify the TCH0H and TCH0L to change the duty cycle of the output signal. The current problems are: the capture signal cycle is not accurate, what are the reasons for this? Thank you!</P><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-337726">code.txt.zip</A></STRONG></P></BODY></HTML> Wed, 31 Aug 2016 09:05:07 GMT peakgao 2016-08-31T09:05:07Z Input Capture of MC68HC908JK3E https://community.nxp.com/t5/8-bit-Microcontrollers/Input-Capture-of-MC68HC908JK3E/m-p/576948#M22113 <HTML><HEAD></HEAD><BODY><P>I use the chip is MC68HC908JK3E, select the timer's channel 1 to capture the external input square wave signal (100-250Hz) period. At the same time, according to the different period, I use timer's channel 0 output adjustable duty cycle square wave signal (20KHz). In the program, I constantly modify the TCH0H and TCH0L to change the duty cycle of the output signal. The current problems are: the capture signal cycle is not accurate, what are the reasons for this? Thank you!</P><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-337726">code.txt.zip</A></STRONG></P></BODY></HTML> Wed, 31 Aug 2016 09:05:07 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/Input-Capture-of-MC68HC908JK3E/m-p/576948#M22113 peakgao 2016-08-31T09:05:07Z