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#include <osdebug.h>
#include "LPC17xx.h"
enum FaultType {
NMI = 2, HardFault, MemManage, BusFault, UsageFault,
};
struct fault_data_t {
uint32_t r4, r5, r6, r7, r8, r9, r10, r11, r0, r1, r2, r3, r12, lr, pc, xPSR;
};
static void print_fault_data(struct fault_data_t * fault_data) {
// These ones are saved naturally by the CPU
DBGOUT("pc: %p\r\n", fault_data->pc);
DBGOUT("sp = %p - lr = %p - r12 = %p -xPSR = %p\r\n", fault_data + 1, fault_data->lr, fault_data->r12, fault_data->xPSR);
DBGOUT("r0 = %p - r1 = %p - r2 = %p - r3 = %p\r\n", fault_data->r0, fault_data->r1, fault_data->r2, fault_data->r3);
// These ones are saved by the ASM handler; hence the reason they are before in memory.
DBGOUT("r4 = %p - r5 = %p - r6 = %p - r7 = %p\r\n", fault_data->r4, fault_data->r5, fault_data->r6, fault_data->r7);
DBGOUT("r8 = %p - r9 = %p - r10 = %p - r11 = %p\r\n", fault_data->r8, fault_data->r9, fault_data->r10, fault_data->r11);
}
void general_C_handler(enum FaultType fault, struct fault_data_t * fault_data) {
DBGOUT("***FAULT***\r\nType: ");
switch (fault) {
case NMI:
DBGOUT("NMI\r\n");
break;
case HardFault:
DBGOUT("HardFault\r\nHFSR: %p\r\n", SCB->HFSR);
break;
case MemManage:
DBGOUT("MemManage\r\nCSFR: %p\r\nMMFAR: %p\r\n", SCB->CFSR, SCB->MMFAR);
break;
case BusFault:
DBGOUT("BusFault\r\nCFSR: %p\r\nBFAR: %p\r\n", SCB->CFSR, SCB->BFAR);
break;
case UsageFault:
DBGOUT("UsageFault\r\nCFSR: %p\r\nBFAR: %p\r\n", SCB->CFSR, SCB->BFAR);
break;
}
print_fault_data(fault_data);
DBGOUT("HALTING\r\n");
while(1);
}
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