topic Re: Cortex M4 Fault Handler in LPC Microcontrollers

topic Re: Cortex M4 Fault Handler in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/Cortex-M4-Fault-Handler/m-p/566222#M17258 <HTML><HEAD></HEAD><BODY><P><A class="link-titled" href="http://info.atollic.com/crash_analyzis_whitepaper?utm_referrer=http%3A%2F%2Fblog.atollic.com%2Feasily-solve-runtime-errors-using-the-hard-fault-crash-analyzis-capabilities-of-cortex-m" title="http://info.atollic.com/crash_analyzis_whitepaper?utm_referrer=http%3A%2F%2Fblog.atollic.com%2Feasily-solve-runtime-errors-using-the-hard-fault-crash-analyzis-capabilities-of-cortex-m">Read our free Cortex-M hard fault crash analysis whitepaper!</A> </P></BODY></HTML> Tue, 29 Nov 2016 16:43:16 GMT massimomanca 2016-11-29T16:43:16Z Cortex M4 Fault Handler https://community.nxp.com/t5/LPC-Microcontrollers/Cortex-M4-Fault-Handler/m-p/566220#M17256 <HTML><HEAD></HEAD><BODY><P>I have a build system that makes use of LPCScrypt on a linux machine.  Everything works really well, except that without the ability to set breakpoints (no debugger nor IDE), I'm unable to debug as effectively as I'm used to.</P><P></P><P>cr_startup_lpc43xx.c describes a lot of great fault handlers I can implement, namely, HardFault_Handler.  But I don't have a good way to print out the call stack/all the function calls that led me to this terrible, terrible point.</P><P></P><P>Is there a template I can use to paste into one of these fault handlers to be able to printf() some basic state of the world before just dying silently?</P><P></P><P>Thank you,</P><P></P><P><SPAN style="font-family: 'courier new', courier;">//*****************************************************************************</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">// Default exception handlers. Override the ones here by defining your own</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">// handler routines in your application code.</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">//*****************************************************************************</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">__attribute__ ((section(".after_vectors")))</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">void NMI_Handler(void) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    while (1) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    }</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">}</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">__attribute__ ((section(".after_vectors")))</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">void HardFault_Handler(void) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    while (1) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    }</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">}</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">__attribute__ ((section(".after_vectors")))</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">void MemManage_Handler(void) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    while (1) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    }</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">}</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">__attribute__ ((section(".after_vectors")))</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">void BusFault_Handler(void) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    while (1) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    }</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">}</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">__attribute__ ((section(".after_vectors")))</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">void UsageFault_Handler(void) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    while (1) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    }</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">}</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">__attribute__ ((section(".after_vectors")))</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">void SVC_Handler(void) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    while (1) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    }</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">}</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">__attribute__ ((section(".after_vectors")))</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">void DebugMon_Handler(void) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    while (1) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    }</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">}</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">__attribute__ ((section(".after_vectors")))</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">void PendSV_Handler(void) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    while (1) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    }</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">}</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">__attribute__ ((section(".after_vectors")))</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">void SysTick_Handler(void) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    while (1) {</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">    }</SPAN></P><P><SPAN style="font-family: 'courier new', courier;">}</SPAN></P></BODY></HTML> Wed, 03 Aug 2016 22:57:16 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Cortex-M4-Fault-Handler/m-p/566220#M17256 mr_s 2016-08-03T22:57:16Z Re: Cortex M4 Fault Handler https://community.nxp.com/t5/LPC-Microcontrollers/Cortex-M4-Fault-Handler/m-p/566221#M17257 <HTML><HEAD></HEAD><BODY><P>The free version of the LPCXpresso.IDE is available for download here:</P><P><A href="http://www.nxp.com/products/software-and-tools/software-development-tools/software-tools/lpc-microcontroller-utilities/lpcxpresso-ide-v8.2.0:LPCXPRESSO?fsrch=1&sr=1&pageNum=1" title="http://www.nxp.com/products/software-and-tools/software-development-tools/software-tools/lpc-microcontroller-utilities/lpcxpresso-ide-v8.2.0:LPCXPRESSO?fsrch=1&sr=1&pageNum=1">LPCXpresso IDE v8.2.0 NXP</A> </P><P></P><P>Here's a FAQ for debugging a hard fault:</P><P><A href="https://community.nxp.com/thread/389002">Debugging a Hard Fault</A></P><P></P><P>Thanks and regards,</P><P>LPCXpresso Support</P></BODY></HTML> Wed, 03 Aug 2016 23:11:06 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Cortex-M4-Fault-Handler/m-p/566221#M17257 lpcxpresso_supp 2016-08-03T23:11:06Z Re: Cortex M4 Fault Handler https://community.nxp.com/t5/LPC-Microcontrollers/Cortex-M4-Fault-Handler/m-p/566222#M17258 <HTML><HEAD></HEAD><BODY><P><A class="link-titled" href="http://info.atollic.com/crash_analyzis_whitepaper?utm_referrer=http%3A%2F%2Fblog.atollic.com%2Feasily-solve-runtime-errors-using-the-hard-fault-crash-analyzis-capabilities-of-cortex-m" title="http://info.atollic.com/crash_analyzis_whitepaper?utm_referrer=http%3A%2F%2Fblog.atollic.com%2Feasily-solve-runtime-errors-using-the-hard-fault-crash-analyzis-capabilities-of-cortex-m">Read our free Cortex-M hard fault crash analysis whitepaper!</A> </P></BODY></HTML> Tue, 29 Nov 2016 16:43:16 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Cortex-M4-Fault-Handler/m-p/566222#M17258 massimomanca 2016-11-29T16:43:16Z