https://community.nxp.com/t5/LPC-Microcontrollers/Critical-bug-on-stopwatch-library-at-lpcopen-2-10-lpcxpresso-ea/m-p/585528#M21275 <HTML><HEAD></HEAD><BODY><SPAN>bump</SPAN></BODY></HTML> Sun, 19 Jun 2016 01:08:20 GMT lpcware 2016-06-19T01:08:20Z https://community.nxp.com/t5/LPC-Microcontrollers/Critical-bug-on-stopwatch-library-at-lpcopen-2-10-lpcxpresso-ea/m-p/585527#M21274 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by C6H6 on Thu Apr 14 11:32:27 MST 2016</STRONG><BR /><SPAN>I found a critical bug on stopwatch library.</SPAN><BR /><BR /><SPAN>At StopWatch_Init function, it calculates ticks per seconds by this:</SPAN><BR /><BR /><BR /><TABLE border="1"><TBODY><TR><TD bgcolor="#cacaca"> <PRE>ticksPerSecond = Chip_Clock_GetSystemClockRate() / prescaleDivisor / 4 ;</PRE> </TD></TR></TBODY></TABLE><BR /><BR /><SPAN>but this is wrong method when SystemClock is 120MHz, and Pheripheral Clock setting at 60Mhz (PCKDIV has been set at 2, by default startup code).</SPAN><BR /><BR /><SPAN>This code has wrong method to calculate ticks. So, I was replace code like this, and operating normaly.</SPAN><BR /><BR /><TABLE border="1"><TBODY><TR><TD bgcolor="#cacaca"> <PRE>ticksPerSecond = Chip_Clock_GetPeripheralClockRate() / prescaleDivisor ;</PRE> </TD></TR></TBODY></TABLE><BR /><BR /><BR /><SPAN>Please fix this problem for new beginners get right library.</SPAN></BODY></HTML> Wed, 15 Jun 2016 20:25:56 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Critical-bug-on-stopwatch-library-at-lpcopen-2-10-lpcxpresso-ea/m-p/585527#M21274 lpcware 2016-06-15T20:25:56Z https://community.nxp.com/t5/LPC-Microcontrollers/Critical-bug-on-stopwatch-library-at-lpcopen-2-10-lpcxpresso-ea/m-p/585528#M21275 <HTML><HEAD></HEAD><BODY><SPAN>bump</SPAN></BODY></HTML> Sun, 19 Jun 2016 01:08:20 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Critical-bug-on-stopwatch-library-at-lpcopen-2-10-lpcxpresso-ea/m-p/585528#M21275 lpcware 2016-06-19T01:08:20Z