LPC MicrocontrollersのトピックLPC4357 1588 PTP System Time https://community.nxp.com/t5/LPC-Microcontrollers/LPC4357-1588-PTP-System-Time/m-p/573817#M18895 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by peterrq on Thu Sep 11 09:04:21 MST 2014</STRONG><BR /><SPAN>I am trying to get PTP working on an MCB4300 using the LPC4357.</SPAN><BR /><SPAN>I have installed LPC OPEN &amp; have updated lpc_low_level_init() &amp; have set intial values in SUBSECOND_INCR (21) &amp; ADDEND (0x8053E356) representing a 10nS tick.</SPAN><BR /><SPAN>MAC_TIMESTP_CTRL is 0x20003.</SPAN><BR /><SPAN>I do not see SECONDS / NANOSECONDS registers increment, they remain at 0.</SPAN><BR /><SPAN>I have not tried to look at DMA descriptor yet as System Time registers remain stuck.</SPAN><BR /><SPAN>I can not find a reason why the registers will not increment. The debugger shows that I have SUBSECOND_INCR (0x21) &amp; ADDEND set.</SPAN><BR /><SPAN>Otherwise ethernet works.</SPAN><BR /><BR /><SPAN>What else do I need to do?</SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 19:00:27 GMT lpcware 2016-06-15T19:00:27Z LPC4357 1588 PTP System Time https://community.nxp.com/t5/LPC-Microcontrollers/LPC4357-1588-PTP-System-Time/m-p/573817#M18895 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by peterrq on Thu Sep 11 09:04:21 MST 2014</STRONG><BR /><SPAN>I am trying to get PTP working on an MCB4300 using the LPC4357.</SPAN><BR /><SPAN>I have installed LPC OPEN &amp; have updated lpc_low_level_init() &amp; have set intial values in SUBSECOND_INCR (21) &amp; ADDEND (0x8053E356) representing a 10nS tick.</SPAN><BR /><SPAN>MAC_TIMESTP_CTRL is 0x20003.</SPAN><BR /><SPAN>I do not see SECONDS / NANOSECONDS registers increment, they remain at 0.</SPAN><BR /><SPAN>I have not tried to look at DMA descriptor yet as System Time registers remain stuck.</SPAN><BR /><SPAN>I can not find a reason why the registers will not increment. The debugger shows that I have SUBSECOND_INCR (0x21) &amp; ADDEND set.</SPAN><BR /><SPAN>Otherwise ethernet works.</SPAN><BR /><BR /><SPAN>What else do I need to do?</SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 19:00:27 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC4357-1588-PTP-System-Time/m-p/573817#M18895 lpcware 2016-06-15T19:00:27Z Re: LPC4357 1588 PTP System Time https://community.nxp.com/t5/LPC-Microcontrollers/LPC4357-1588-PTP-System-Time/m-p/573818#M18896 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by peterrq on Fri Sep 12 02:06:17 MST 2014</STRONG><BR /><SPAN>Had missed that I need to set TSADDREG.</SPAN><BR /><SPAN>Timestamp updates now.</SPAN></BODY></HTML> Wed, 15 Jun 2016 19:00:28 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC4357-1588-PTP-System-Time/m-p/573818#M18896 lpcware 2016-06-15T19:00:28Z