topic Re: how to set systick to get microsecond(us) delay in use s32k144 in S32K https://community.nxp.com/t5/S32K/how-to-set-systick-to-get-microsecond-us-delay-in-use-s32k144/m-p/1597725#M20612 <P>Hi Daniel,</P><P>I also have the same requirement to generate microsecond delay, but my Controllers is MPC5777C. OSIF is connected to PIT(default) and its frequency is 100MHz. I have also followed your instructions and updated divider value in "static inline void osif_UpdateTickConfig(void)" function, as shown in image below.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Eashwar_0-1676188907576.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/210564i64835833E2545E39/image-size/large?v=v2&amp;px=999" role="button" title="Eashwar_0-1676188907576.png" alt="Eashwar_0-1676188907576.png" /></span></P><P>&nbsp;</P><P>The problem is when I call "OSIF_TimeDelay(1)" program pointer is struck in&nbsp; "osif_Tick()".</P><P>Kindly provide suitable solution.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Eashwar_1-1676188965230.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/210565iCB904B31D8D5775F/image-size/large?v=v2&amp;px=999" role="button" title="Eashwar_1-1676188965230.png" alt="Eashwar_1-1676188965230.png" /></span></P><P>Regards,</P><P>Eashwar</P><P>&nbsp;</P><P>&nbsp;</P> Sun, 12 Feb 2023 08:03:18 GMT Eashwar 2023-02-12T08:03:18Z how to set systick to get microsecond(us) delay in use s32k144 https://community.nxp.com/t5/S32K/how-to-set-systick-to-get-microsecond-us-delay-in-use-s32k144/m-p/857689#M3676 <HTML><HEAD></HEAD><BODY><P>hello</P><P>&nbsp; &nbsp; &nbsp; &nbsp; S32DS software has the&nbsp; delay function.the example project that s32ds provide is <STRONG>millisecond(ms)</STRONG> delay "<STRONG>OSIF_TimeDelay(1)",</STRONG> now I want to use&nbsp;<STRONG>microsecond(us)</STRONG> delay ,how l acquire this function ,please help me if you know how to configuration register or give me example project. thank you.</P></BODY></HTML> Thu, 14 Mar 2019 09:39:47 GMT https://community.nxp.com/t5/S32K/how-to-set-systick-to-get-microsecond-us-delay-in-use-s32k144/m-p/857689#M3676 jinshuaixu 2019-03-14T09:39:47Z Re: how to set systick to get microsecond(us) delay in use s32k144 https://community.nxp.com/t5/S32K/how-to-set-systick-to-get-microsecond-us-delay-in-use-s32k144/m-p/857690#M3677 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P>The&nbsp;OSIF implementation can be found in the osif_baremetal.c file.</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/75256i249F6C65954693DF/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_2.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/75019i846CB62EDFF8A101/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_2.png" alt="pastedImage_2.png" /></span></P><P>The reload value of the SysTick is the core frequency divided by 1000, that means that the Systick interrupt is called every 1ms and increment the&nbsp;s_osif_tick_cnt counter.</P><P>The counter is then read and compered by the OSIF_TimeDelay() function.</P><P>If the core frequency was divided by 10000, the counter would increment every 100us (OSIF_TimeDelay(1) = 100us).</P><P></P><P>The SysTick description can be found in ARM documentation.</P><P><A href="http://infocenter.arm.com/help/topic/com.arm.doc.dui0553b/DUI0553.pdf">Cortex™-M4 Devices&nbsp;Generic User Guide</A></P><P>Section 4.4 System timer, SysTick</P><P></P><P>Regards,</P><P>Daniel</P></BODY></HTML> Thu, 14 Mar 2019 13:06:10 GMT https://community.nxp.com/t5/S32K/how-to-set-systick-to-get-microsecond-us-delay-in-use-s32k144/m-p/857690#M3677 danielmartynek 2019-03-14T13:06:10Z Re: how to set systick to get microsecond(us) delay in use s32k144 https://community.nxp.com/t5/S32K/how-to-set-systick-to-get-microsecond-us-delay-in-use-s32k144/m-p/857691#M3678 <HTML><HEAD></HEAD><BODY><P>thank you for you response, l have test the way you you offer，the result is correct.</P></BODY></HTML> Mon, 18 Mar 2019 00:47:28 GMT https://community.nxp.com/t5/S32K/how-to-set-systick-to-get-microsecond-us-delay-in-use-s32k144/m-p/857691#M3678 jinshuaixu 2019-03-18T00:47:28Z Re: how to set systick to get microsecond(us) delay in use s32k144 https://community.nxp.com/t5/S32K/how-to-set-systick-to-get-microsecond-us-delay-in-use-s32k144/m-p/1597373#M20583 <P>Hi Daniel,</P><P>I also have the same requirement to generate microsecond delay, but my Controllers is MPC5777C. OSIF is connected to PIT(default) and its frequency is 100MHz. I have also followed your instructions and updated divider value in "static inline void osif_UpdateTickConfig(void)" function, as shown in image below.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Eashwar_0-1676036429456.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/210489i4FCFEA5DE3BA18CC/image-size/large?v=v2&amp;px=999" role="button" title="Eashwar_0-1676036429456.png" alt="Eashwar_0-1676036429456.png" /></span></P><P>&nbsp;</P><P>The problem is when I call "OSIF_TimeDelay(1)" program pointer is struck in&nbsp; "osif_Tick()".</P><P>Kindly provide suitable solution.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Eashwar_1-1676036643526.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/210491i0517807F73F3DCD4/image-size/medium?v=v2&amp;px=400" role="button" title="Eashwar_1-1676036643526.png" alt="Eashwar_1-1676036643526.png" /></span></P><P>Regards,</P><P>Eashwar</P> Fri, 10 Feb 2023 13:46:50 GMT https://community.nxp.com/t5/S32K/how-to-set-systick-to-get-microsecond-us-delay-in-use-s32k144/m-p/1597373#M20583 Eashwar 2023-02-10T13:46:50Z Re: how to set systick to get microsecond(us) delay in use s32k144 https://community.nxp.com/t5/S32K/how-to-set-systick-to-get-microsecond-us-delay-in-use-s32k144/m-p/1597725#M20612 <P>Hi Daniel,</P><P>I also have the same requirement to generate microsecond delay, but my Controllers is MPC5777C. OSIF is connected to PIT(default) and its frequency is 100MHz. I have also followed your instructions and updated divider value in "static inline void osif_UpdateTickConfig(void)" function, as shown in image below.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Eashwar_0-1676188907576.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/210564i64835833E2545E39/image-size/large?v=v2&amp;px=999" role="button" title="Eashwar_0-1676188907576.png" alt="Eashwar_0-1676188907576.png" /></span></P><P>&nbsp;</P><P>The problem is when I call "OSIF_TimeDelay(1)" program pointer is struck in&nbsp; "osif_Tick()".</P><P>Kindly provide suitable solution.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Eashwar_1-1676188965230.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/210565iCB904B31D8D5775F/image-size/large?v=v2&amp;px=999" role="button" title="Eashwar_1-1676188965230.png" alt="Eashwar_1-1676188965230.png" /></span></P><P>Regards,</P><P>Eashwar</P><P>&nbsp;</P><P>&nbsp;</P> Sun, 12 Feb 2023 08:03:18 GMT https://community.nxp.com/t5/S32K/how-to-set-systick-to-get-microsecond-us-delay-in-use-s32k144/m-p/1597725#M20612 Eashwar 2023-02-12T08:03:18Z Re: how to set systick to get microsecond(us) delay in use s32k324 https://community.nxp.com/t5/S32K/how-to-set-systick-to-get-microsecond-us-delay-in-use-s32k144/m-p/1947185#M40552 <P>i'm finding same fuction for s32k324. configuration already done can you please do my help</P> Wed, 04 Sep 2024 10:52:40 GMT https://community.nxp.com/t5/S32K/how-to-set-systick-to-get-microsecond-us-delay-in-use-s32k144/m-p/1947185#M40552 semiconductor_user 2024-09-04T10:52:40Z