8-bit MicrocontrollersのトピックS08 Calculating TPM bit resolution when used in PWM mode? https://community.nxp.com/t5/8-bit-Microcontrollers/S08-Calculating-TPM-bit-resolution-when-used-in-PWM-mode/m-p/243905#M19653 <HTML><HEAD></HEAD><BODY><P>Hello Everyone,</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Does anyone know how to calculate the TPM bit resolution when used in edge PWM mode please? For example, if I use a bus clock of 4MHz, a prescaler of 2 to generate a 120Hz period, I calculate TPMxMOD to be 16667 but how do I calculate the bit resolution of the PWM output?</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Thanks in advance,</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Ian</P></BODY></HTML> Sat, 21 Sep 2013 19:06:50 GMT iansmusical 2013-09-21T19:06:50Z S08 Calculating TPM bit resolution when used in PWM mode? https://community.nxp.com/t5/8-bit-Microcontrollers/S08-Calculating-TPM-bit-resolution-when-used-in-PWM-mode/m-p/243905#M19653 <HTML><HEAD></HEAD><BODY><P>Hello Everyone,</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Does anyone know how to calculate the TPM bit resolution when used in edge PWM mode please? For example, if I use a bus clock of 4MHz, a prescaler of 2 to generate a 120Hz period, I calculate TPMxMOD to be 16667 but how do I calculate the bit resolution of the PWM output?</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Thanks in advance,</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Ian</P></BODY></HTML> Sat, 21 Sep 2013 19:06:50 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/S08-Calculating-TPM-bit-resolution-when-used-in-PWM-mode/m-p/243905#M19653 iansmusical 2013-09-21T19:06:50Z Re: S08 Calculating TPM bit resolution when used in PWM mode? https://community.nxp.com/t5/8-bit-Microcontrollers/S08-Calculating-TPM-bit-resolution-when-used-in-PWM-mode/m-p/243906#M19654 <HTML><HEAD></HEAD><BODY><P>ln(16667)/ln(2) = 14.02</P></BODY></HTML> Sat, 21 Sep 2013 20:01:02 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/S08-Calculating-TPM-bit-resolution-when-used-in-PWM-mode/m-p/243906#M19654 kef2 2013-09-21T20:01:02Z Re: S08 Calculating TPM bit resolution when used in PWM mode? https://community.nxp.com/t5/8-bit-Microcontrollers/S08-Calculating-TPM-bit-resolution-when-used-in-PWM-mode/m-p/243907#M19655 <HTML><HEAD></HEAD><BODY><P>Hi Edward,</P><P></P><P>Thank you for your answer, very helpful.</P><P></P><P>Ian</P></BODY></HTML> Sun, 22 Sep 2013 07:32:46 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/S08-Calculating-TPM-bit-resolution-when-used-in-PWM-mode/m-p/243907#M19655 iansmusical 2013-09-22T07:32:46Z