topic CMP interruption in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/CMP-interruption/m-p/1168105#M58513 <P><FONT face="times new roman,times">Hello Everyone,&nbsp;</FONT></P><P><FONT face="times new roman,times">I'am using the CMP0 on the K64. I used the driver sample code for cmp driver on the latest SDK (2.8).&nbsp;</FONT></P><P><FONT face="times new roman,times">&nbsp;</FONT></P><P><FONT face="times new roman,times"><STRONG>Configuration:&nbsp;</STRONG></FONT></P><UL><LI><FONT face="times new roman,times">INP: DAC 1.65V (VOSEL 32)</FONT></LI><LI><FONT face="times new roman,times">INM : CH5 , the input is a 50hz AC signal centred on 1.65V</FONT></LI><LI><FONT face="times new roman,times">Interruption : <STRONG>Only rising edge enabled</STRONG>.&nbsp;</FONT></LI></UL><P>&nbsp;</P><P><FONT face="times new roman,times"><STRONG>Expectations:&nbsp;</STRONG></FONT></P><UL><LI><FONT face="times new roman,times">Interruption every 20ms (1/50hz) on rising edge <STRONG>with rising flag only</STRONG> on the SCR register.&nbsp;</FONT></LI></UL><P>&nbsp;</P><P><FONT face="times new roman,times"><STRONG>Real Results:&nbsp;</STRONG></FONT></P><UL><LI><FONT face="times new roman,times">The first interruption is always erroned (even when i added a delay of 5ms after initilisaion)&nbsp;</FONT></LI><LI><FONT face="times new roman,times">The rest of the interruptions are called every 20ms on rising edge but with the two flags setted</FONT><FONT face="times new roman,times">&nbsp;</FONT><FONT face="times new roman,times">(rising and falling ) on the SCR register ! (<FONT color="#FF0000"><STRONG>SCR_CFR = 1 ,&nbsp; SCR_CFF = 1</STRONG></FONT>)</FONT></LI></UL><P>&nbsp;</P><P><FONT face="times new roman,times">Best Regards.&nbsp;</FONT></P> Thu, 15 Oct 2020 08:33:06 GMT ahmedhrabi 2020-10-15T08:33:06Z CMP interruption https://community.nxp.com/t5/Kinetis-Microcontrollers/CMP-interruption/m-p/1168105#M58513 <P><FONT face="times new roman,times">Hello Everyone,&nbsp;</FONT></P><P><FONT face="times new roman,times">I'am using the CMP0 on the K64. I used the driver sample code for cmp driver on the latest SDK (2.8).&nbsp;</FONT></P><P><FONT face="times new roman,times">&nbsp;</FONT></P><P><FONT face="times new roman,times"><STRONG>Configuration:&nbsp;</STRONG></FONT></P><UL><LI><FONT face="times new roman,times">INP: DAC 1.65V (VOSEL 32)</FONT></LI><LI><FONT face="times new roman,times">INM : CH5 , the input is a 50hz AC signal centred on 1.65V</FONT></LI><LI><FONT face="times new roman,times">Interruption : <STRONG>Only rising edge enabled</STRONG>.&nbsp;</FONT></LI></UL><P>&nbsp;</P><P><FONT face="times new roman,times"><STRONG>Expectations:&nbsp;</STRONG></FONT></P><UL><LI><FONT face="times new roman,times">Interruption every 20ms (1/50hz) on rising edge <STRONG>with rising flag only</STRONG> on the SCR register.&nbsp;</FONT></LI></UL><P>&nbsp;</P><P><FONT face="times new roman,times"><STRONG>Real Results:&nbsp;</STRONG></FONT></P><UL><LI><FONT face="times new roman,times">The first interruption is always erroned (even when i added a delay of 5ms after initilisaion)&nbsp;</FONT></LI><LI><FONT face="times new roman,times">The rest of the interruptions are called every 20ms on rising edge but with the two flags setted</FONT><FONT face="times new roman,times">&nbsp;</FONT><FONT face="times new roman,times">(rising and falling ) on the SCR register ! (<FONT color="#FF0000"><STRONG>SCR_CFR = 1 ,&nbsp; SCR_CFF = 1</STRONG></FONT>)</FONT></LI></UL><P>&nbsp;</P><P><FONT face="times new roman,times">Best Regards.&nbsp;</FONT></P> Thu, 15 Oct 2020 08:33:06 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/CMP-interruption/m-p/1168105#M58513 ahmedhrabi 2020-10-15T08:33:06Z