flabbergast
/
chibios-projects
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Browse Source

New hardfault.c. Openocd confs.

master
flabbergast 5 years ago
parent
9bca0acaec
commit
ea41b05aeb
4 changed files with 76 additions and 87 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 16
      openocd/f072-cmsis-dap.cfg
  2. 15
      openocd/l0-cmsis-dap.cfg
  3. 8
      projects/bat-board-test/mcuconf.h
  4. 124
      projects/testing/hardfault.c

16
openocd/f072-cmsis-dap.cfg
View File

@ -0,0 +1,16 @@
# adapter/interface
source [find interface/cmsis-dap.cfg]
transport select swd
# increase working area to 6KB
set WORKAREASIZE 0x4000
# reset_config none separate
set CHIPNAME STM32F072CBT6
source [find target/stm32f0x.cfg]
$_TARGETNAME configure -event gdb-attach {
echo "Halting Target"
reset init
}

15
openocd/l0-cmsis-dap.cfg
View File

@ -0,0 +1,15 @@
# adapter/interface
source [find interface/cmsis-dap.cfg]
transport select swd
set WORKAREASIZE 0x2000
# reset_config none separate
set CHIPNAME STM32L052C8
source [find target/stm32l0.cfg]
$_TARGETNAME configure -event gdb-attach {
echo "Halting Target"
reset init
}

8
projects/bat-board-test/mcuconf.h
View File

@ -40,15 +40,15 @@
#define STM32_VOS STM32_VOS_1P8
#define STM32_PVD_ENABLE FALSE
#define STM32_PLS STM32_PLS_LEV0
#define STM32_HSI16_ENABLED TRUE
#define STM32_HSI16_ENABLED FALSE
#define STM32_LSI_ENABLED TRUE
#define STM32_HSE_ENABLED FALSE
#define STM32_HSE_ENABLED TRUE
#define STM32_LSE_ENABLED FALSE
#define STM32_ADC_CLOCK_ENABLED TRUE
#define STM32_ADC_CLOCK_ENABLED FALSE
#define STM32_USB_CLOCK_ENABLED TRUE
#define STM32_MSIRANGE STM32_MSIRANGE_2M
#define STM32_SW STM32_SW_PLL
#define STM32_PLLSRC STM32_PLLSRC_HSI16
#define STM32_PLLSRC STM32_PLLSRC_HSE
#define STM32_PLLMUL_VALUE 4
#define STM32_PLLDIV_VALUE 2
#define STM32_HPRE STM32_HPRE_DIV1

124
projects/testing/hardfault.c
View File

@ -1,86 +1,44 @@
#include <string.h>
#include <ch.h>
/**
* HardFault_HandlerAsm:
* Alternative Hard Fault handler to help debug the reason for a fault.
* To use, edit the vector table to reference this function in the HardFault vector
* This code is suitable for Cortex-M3 and Cortex-M0 cores
* Executes the BKPT instruction that causes the debugger to stop.
* If no debugger is attached, this will be ignored
*/
// Use the 'naked' attribute so that C stacking is not used.
__attribute__((naked))
void HardFault_Handler(void){
/*
* Get the appropriate stack pointer, depending on our mode,
* and use it as the parameter to the C handler. This function
* will never return
*/
__asm( ".syntax unified\n"
"MOVS R0, #4 \n"
"MOV R1, LR \n"
"TST R0, R1 \n"
"BEQ _MSP \n"
"MRS R0, PSP \n"
"B HardFault_HandlerC \n"
"_MSP: \n"
"MRS R0, MSP \n"
"B HardFault_HandlerC \n"
".syntax divided\n") ;
}
/**
* HardFaultHandler_C:
* This is called from the HardFault_HandlerAsm with a pointer the Fault stack
* as the parameter. We can then read the values from the stack and place them
* into local variables for ease of reading.
* We then read the various Fault Status and Address Registers to help decode
* cause of the fault.
* The function ends with a BKPT instruction to force control back into the debugger
*/
void HardFault_HandlerC(unsigned long *hardfault_args){
volatile unsigned long stacked_r0 ;
volatile unsigned long stacked_r1 ;
volatile unsigned long stacked_r2 ;
volatile unsigned long stacked_r3 ;
volatile unsigned long stacked_r12 ;
volatile unsigned long stacked_lr ;
volatile unsigned long stacked_pc ;
volatile unsigned long stacked_psr ;
volatile unsigned long _CFSR ;
volatile unsigned long _HFSR ;
volatile unsigned long _DFSR ;
volatile unsigned long _AFSR ;
volatile unsigned long _BFAR ;
volatile unsigned long _MMAR ;
stacked_r0 = ((unsigned long)hardfault_args[0]) ;
stacked_r1 = ((unsigned long)hardfault_args[1]) ;
stacked_r2 = ((unsigned long)hardfault_args[2]) ;
stacked_r3 = ((unsigned long)hardfault_args[3]) ;
stacked_r12 = ((unsigned long)hardfault_args[4]) ;
stacked_lr = ((unsigned long)hardfault_args[5]) ;
stacked_pc = ((unsigned long)hardfault_args[6]) ;
stacked_psr = ((unsigned long)hardfault_args[7]) ;
// Configurable Fault Status Register
// Consists of MMSR, BFSR and UFSR
_CFSR = (*((volatile unsigned long *)(0xE000ED28))) ;
// Hard Fault Status Register
_HFSR = (*((volatile unsigned long *)(0xE000ED2C))) ;
// Debug Fault Status Register
_DFSR = (*((volatile unsigned long *)(0xE000ED30))) ;
// Auxiliary Fault Status Register
_AFSR = (*((volatile unsigned long *)(0xE000ED3C))) ;
// Read the Fault Address Registers. These may not contain valid values.
// Check BFARVALID/MMARVALID to see if they are valid values
// MemManage Fault Address Register
_MMAR = (*((volatile unsigned long *)(0xE000ED34))) ;
// Bus Fault Address Register
_BFAR = (*((volatile unsigned long *)(0xE000ED38))) ;
__asm("BKPT #0\n") ; // Break into the debugger
#define bkpt() __asm volatile("BKPT #0\n")
void HardFault_Handler(void) {
//Copy to local variables (not pointers) to allow GDB "i loc" to directly show the info
struct port_extctx ctx;
volatile unsigned long _CFSR ;
volatile unsigned long _HFSR ;
volatile unsigned long _DFSR ;
volatile unsigned long _AFSR ;
volatile unsigned long _BFAR ;
volatile unsigned long _MMAR ;
//Get thread context. Contains main registers including PC and LR
memcpy(&ctx, (void*)__get_PSP(), sizeof(struct port_extctx));
(void)ctx;
// Configurable Fault Status Register
// Consists of MMSR, BFSR and UFSR
_CFSR = (*((volatile unsigned long *)(0xE000ED28))) ;
// Hard Fault Status Register
_HFSR = (*((volatile unsigned long *)(0xE000ED2C))) ;
// Debug Fault Status Register
_DFSR = (*((volatile unsigned long *)(0xE000ED30))) ;
// Auxiliary Fault Status Register
_AFSR = (*((volatile unsigned long *)(0xE000ED3C))) ;
// Read the Fault Address Registers. These may not contain valid values.
// Check BFARVALID/MMARVALID to see if they are valid values
// MemManage Fault Address Register
_MMAR = (*((volatile unsigned long *)(0xE000ED34))) ;
// Bus Fault Address Register
_BFAR = (*((volatile unsigned long *)(0xE000ED38))) ;
//Cause debugger to stop. Ignored if no debugger is attached
bkpt();
NVIC_SystemReset(); // If no debugger connected, just reset the board
}
Write Preview
Loading…
Cancel
Save