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Install a hardfault handler on NRF52

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This commit is contained in:
geeksville 2020-07-15 13:24:57 -07:00
parent 4147786b12
commit f919eb6a64
3 changed files with 36 additions and 81 deletions
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9
src/configuration.h
View File

@ -305,9 +305,15 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
// What platforms should use SEGGER?
#ifdef NRF52_SERIES
// Always include the SEGGER code on NRF52 - because useful for debugging
#include "SEGGER_RTT.h"
// Debug printing to segger console
#define SEGGER_MSG(...) SEGGER_RTT_printf(0, __VA_ARGS__)
// nrf52 gets its settings via variant files
#ifndef PIN_SERIAL_RX
// No serial ports on this board - use segger in memory console
// No serial ports on this board - ONLY use segger in memory console
#define USE_SEGGER
#endif
@ -316,7 +322,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#endif
#ifdef USE_SEGGER
#include "SEGGER_RTT.h"
#define DEBUG_MSG(...) SEGGER_RTT_printf(0, __VA_ARGS__)
#else
#ifdef DEBUG_PORT

54
src/nrf52/NRF52Bluetooth.cpp
View File

@ -217,57 +217,3 @@ void updateBatteryLevel(uint8_t level)
{
blebas.write(level);
}
/*
void loop()
{
digitalToggle(LED_RED);
if ( Bluefruit.connected() ) {
uint8_t hrmdata[2] = { 0b00000110, bps++ }; // Sensor connected, increment BPS value
// Note: We use .notify instead of .write!
// If it is connected but CCCD is not enabled
// The characteristic's value is still updated although notification is not sent
if ( hrmc.notify(hrmdata, sizeof(hrmdata)) ){
Serial.print("Heart Rate Measurement updated to: "); Serial.println(bps);
}else{
Serial.println("ERROR: Notify not set in the CCCD or not connected!");
}
}
// Only send update once per second
delay(1000);
}
*/
/*
examples of advanced characteristics. use setReadAuthorizeCallback to prepare data for reads by others
err_t BLEDfu::begin(void)
{
// Invoke base class begin()
VERIFY_STATUS( BLEService::begin() );
// No need to keep packet & revision characteristics
BLECharacteristic chr_packet(UUID128_CHR_DFU_PACKET);
chr_packet.setTempMemory();
chr_packet.setProperties(CHR_PROPS_WRITE_WO_RESP);
chr_packet.setMaxLen(20);
VERIFY_STATUS( chr_packet.begin() );
_chr_control.setProperties(CHR_PROPS_WRITE | CHR_PROPS_NOTIFY);
_chr_control.setMaxLen(23);
_chr_control.setWriteAuthorizeCallback(bledfu_control_wr_authorize_cb);
VERIFY_STATUS( _chr_control.begin() );
BLECharacteristic chr_revision(UUID128_CHR_DFU_REVISON);
chr_revision.setTempMemory();
chr_revision.setProperties(CHR_PROPS_READ);
chr_revision.setFixedLen(2);
VERIFY_STATUS( chr_revision.begin());
chr_revision.write16(DFU_REV_APPMODE);
return ERROR_NONE;
}
*/

52
src/nrf52/hardfault.cpp
View File

@ -5,47 +5,51 @@
enum { r0, r1, r2, r3, r12, lr, pc, psr };
// we can't use the regular DEBUG_MSG for these crash dumps because it depends on threading still being running. Instead use the
// segger in memory tool
#define FAULT_MSG(...) SEGGER_MSG(__VA_ARGS__)
// Per http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0552a/Cihcfefj.html
static void printUsageErrorMsg(uint32_t cfsr)
{
DEBUG_MSG("Usage fault: ");
FAULT_MSG("Usage fault: ");
cfsr >>= SCB_CFSR_USGFAULTSR_Pos; // right shift to lsb
if ((cfsr & (1 << 9)) != 0)
DEBUG_MSG("Divide by zero\n");
FAULT_MSG("Divide by zero\n");
if ((cfsr & (1 << 8)) != 0)
DEBUG_MSG("Unaligned\n");
FAULT_MSG("Unaligned\n");
}
static void printBusErrorMsg(uint32_t cfsr)
{
DEBUG_MSG("Usage fault: ");
FAULT_MSG("Bus fault: ");
cfsr >>= SCB_CFSR_BUSFAULTSR_Pos; // right shift to lsb
if ((cfsr & (1 << 0)) != 0)
DEBUG_MSG("Instruction bus error\n");
FAULT_MSG("Instruction bus error\n");
if ((cfsr & (1 << 1)) != 0)
DEBUG_MSG("Precise data bus error\n");
FAULT_MSG("Precise data bus error\n");
if ((cfsr & (1 << 2)) != 0)
DEBUG_MSG("Imprecise data bus error\n");
FAULT_MSG("Imprecise data bus error\n");
}
static void printMemErrorMsg(uint32_t cfsr)
{
DEBUG_MSG("Usage fault: ");
FAULT_MSG("Memory fault: ");
cfsr >>= SCB_CFSR_MEMFAULTSR_Pos; // right shift to lsb
if ((cfsr & (1 << 0)) != 0)
DEBUG_MSG("Instruction access violation\n");
FAULT_MSG("Instruction access violation\n");
if ((cfsr & (1 << 1)) != 0)
DEBUG_MSG("Data access violation\n");
FAULT_MSG("Data access violation\n");
}
static void HardFault_Impl(uint32_t stack[])
extern "C" void HardFault_Impl(uint32_t stack[])
{
DEBUG_MSG("In Hard Fault Handler\n");
DEBUG_MSG("SCB->HFSR = 0x%08lx\n", SCB->HFSR);
FAULT_MSG("In Hard Fault Handler\n");
FAULT_MSG("SCB->HFSR = 0x%08lx\n", SCB->HFSR);
if ((SCB->HFSR & SCB_HFSR_FORCED_Msk) != 0) {
DEBUG_MSG("Forced Hard Fault\n");
DEBUG_MSG("SCB->CFSR = 0x%08lx\n", SCB->CFSR);
FAULT_MSG("Forced Hard Fault\n");
FAULT_MSG("SCB->CFSR = 0x%08lx\n", SCB->CFSR);
if ((SCB->CFSR & SCB_CFSR_USGFAULTSR_Msk) != 0) {
printUsageErrorMsg(SCB->CFSR);
@ -57,21 +61,21 @@ static void HardFault_Impl(uint32_t stack[])
printMemErrorMsg(SCB->CFSR);
}
DEBUG_MSG("r0 = 0x%08lx\n", stack[r0]);
DEBUG_MSG("r1 = 0x%08lx\n", stack[r1]);
DEBUG_MSG("r2 = 0x%08lx\n", stack[r2]);
DEBUG_MSG("r3 = 0x%08lx\n", stack[r3]);
DEBUG_MSG("r12 = 0x%08lx\n", stack[r12]);
DEBUG_MSG("lr = 0x%08lx\n", stack[lr]);
DEBUG_MSG("pc = 0x%08lx\n", stack[pc]);
DEBUG_MSG("psr = 0x%08lx\n", stack[psr]);
FAULT_MSG("r0 = 0x%08lx\n", stack[r0]);
FAULT_MSG("r1 = 0x%08lx\n", stack[r1]);
FAULT_MSG("r2 = 0x%08lx\n", stack[r2]);
FAULT_MSG("r3 = 0x%08lx\n", stack[r3]);
FAULT_MSG("r12 = 0x%08lx\n", stack[r12]);
FAULT_MSG("lr = 0x%08lx\n", stack[lr]);
FAULT_MSG("pc = 0x%08lx\n", stack[pc]);
FAULT_MSG("psr = 0x%08lx\n", stack[psr]);
asm volatile("bkpt #01");
while (1)
;
}
}
void HardFault_Handler(void)
extern "C" void HardFault_Handler(void)
{
asm volatile(" mrs r0,msp\n"
" b HardFault_Impl \n");