LPC Microcontrollers中的主题 Re: LPC1517 SystemCoreClock becomes ZERO https://community.nxp.com/t5/LPC-Microcontrollers/LPC1517-SystemCoreClock-becomes-ZERO/m-p/789790#M31774 <HTML><HEAD></HEAD><BODY><P>I solved the problem, the&nbsp;<STRONG>SystemCoreClock&nbsp;</STRONG>must be globally initialized if its call is in another function, or use <STRONG>GetSystemCoreClock()&nbsp;</STRONG>function.</P></BODY></HTML> Thu, 01 Nov 2018 05:05:13 GMT athmesh_n 2018-11-01T05:05:13Z LPC1517 SystemCoreClock becomes ZERO https://community.nxp.com/t5/LPC-Microcontrollers/LPC1517-SystemCoreClock-becomes-ZERO/m-p/789789#M31773 <HTML><HEAD></HEAD><BODY><P>While running the program, the SystemCoreClock became zero for no reason.</P><P>I was working on timer, and the timer interrupt suddenly stopped. When I debugged and checked the peripherals of SCTimer, the match value came to 0xffff, when I rewinded back, SystemCoreClock showed zero instead of 71999999.</P><P>Is it any hardware issue or any hardfaults or any other faults?</P></BODY></HTML> Wed, 31 Oct 2018 12:35:57 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC1517-SystemCoreClock-becomes-ZERO/m-p/789789#M31773 athmesh_n 2018-10-31T12:35:57Z Re: LPC1517 SystemCoreClock becomes ZERO https://community.nxp.com/t5/LPC-Microcontrollers/LPC1517-SystemCoreClock-becomes-ZERO/m-p/789790#M31774 <HTML><HEAD></HEAD><BODY><P>I solved the problem, the&nbsp;<STRONG>SystemCoreClock&nbsp;</STRONG>must be globally initialized if its call is in another function, or use <STRONG>GetSystemCoreClock()&nbsp;</STRONG>function.</P></BODY></HTML> Thu, 01 Nov 2018 05:05:13 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC1517-SystemCoreClock-becomes-ZERO/m-p/789790#M31774 athmesh_n 2018-11-01T05:05:13Z