8-bit Microcontrollers中的主题 Fault found on 9S08SH16 part https://community.nxp.com/t5/8-bit-Microcontrollers/Fault-found-on-9S08SH16-part/m-p/184506#M13730 <HTML><HEAD></HEAD><BODY><DIV>Hi everyone,</DIV><DIV>&nbsp;</DIV><DIV>I thought I would post this in case anyone else, like me,&nbsp;has wasted a day on a this problem and hasn't found a possible cause/solution.</DIV><DIV>&nbsp;</DIV><DIV>There is an issue on the 9S08SH16 parts, but I don't know if this is related to a batch only. If you poll the TPM1 Channel 1 interrupt flag (TPM1C1SC_CH1F) for a number of cycles, the MCU will suddenly start to change its system frequency and will jump to a random memory address location.</DIV><DIV>&nbsp;</DIV><DIV>I have tested this by polling Channel 0 on TPM1 and the TPM2 channels and the device is stable when doing so. I also tested this on all of the parts I have (13 in total) on our prototypes and they all behave the same. I have also&nbsp;sent this to Freescale support for them to look into.</DIV><DIV>&nbsp;</DIV><DIV>I hope this may help someone else out there who&nbsp;has been&nbsp;pulling their hair out wondering what's going on.</DIV></BODY></HTML> Tue, 09 Sep 2008 16:33:23 GMT Goz 2008-09-09T16:33:23Z Fault found on 9S08SH16 part https://community.nxp.com/t5/8-bit-Microcontrollers/Fault-found-on-9S08SH16-part/m-p/184506#M13730 <HTML><HEAD></HEAD><BODY><DIV>Hi everyone,</DIV><DIV>&nbsp;</DIV><DIV>I thought I would post this in case anyone else, like me,&nbsp;has wasted a day on a this problem and hasn't found a possible cause/solution.</DIV><DIV>&nbsp;</DIV><DIV>There is an issue on the 9S08SH16 parts, but I don't know if this is related to a batch only. If you poll the TPM1 Channel 1 interrupt flag (TPM1C1SC_CH1F) for a number of cycles, the MCU will suddenly start to change its system frequency and will jump to a random memory address location.</DIV><DIV>&nbsp;</DIV><DIV>I have tested this by polling Channel 0 on TPM1 and the TPM2 channels and the device is stable when doing so. I also tested this on all of the parts I have (13 in total) on our prototypes and they all behave the same. I have also&nbsp;sent this to Freescale support for them to look into.</DIV><DIV>&nbsp;</DIV><DIV>I hope this may help someone else out there who&nbsp;has been&nbsp;pulling their hair out wondering what's going on.</DIV></BODY></HTML> Tue, 09 Sep 2008 16:33:23 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/Fault-found-on-9S08SH16-part/m-p/184506#M13730 Goz 2008-09-09T16:33:23Z Re: Fault found on 9S08SH16 part https://community.nxp.com/t5/8-bit-Microcontrollers/Fault-found-on-9S08SH16-part/m-p/184507#M13731 <HTML><HEAD></HEAD><BODY>If this is the case, you should submit a service request.<BR />If possible, create a test program that only has this code in it.<BR /><BR />You may find there is a work around.</BODY></HTML> Tue, 09 Sep 2008 17:29:21 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/Fault-found-on-9S08SH16-part/m-p/184507#M13731 JimDon 2008-09-09T17:29:21Z