/**
* Initializes the minimal system including CPU Clock, UART, and Flash accelerator
* Be careful of the order of operations!!!
*/
void low_level_init(void)
{
rtc_init();
m_rtc_boot_time = rtc_gettime();
/**
* Configure System Clock based on desired clock rate @ sys_config.h
* Setup default interrupt priorities that will work with FreeRTOS
*/
sys_clock_configure();
configure_flash_acceleration(sys_get_cpu_clock());
configure_interrupt_priorities();
__enable_irq();
// Setup UART with minimum I/O functions
uart0_init(UART0_DEFAULT_RATE_BPS);
sys_set_outchar_func(uart0_putchar);
sys_set_inchar_func(uart0_getchar);
/**
* If buffers are set to 0, so printf/scanf will behave correctly!
* If not set, then printf/scanf will have weird buffering/flushing effects
*/
setvbuf(stdout, 0, _IONBF, 0);
setvbuf(stdin, 0, _IONBF, 0);
/**
* Set the semaphore for the malloc lock.
* Initialize newlib fopen() fread() calls support
*/
syscalls_init();
/**
* Enable watchdog to allow us to recover in case of:
* - We attempt to run an application and it's not there
* - Application we ran crashes
*/
sys_watchdog_enable();
print_boot_info();
}
/**
* Initializes the minimal system including CPU Clock, UART, and Flash accelerator
* Be careful of the order of the operations!!!
*/
void low_level_init(void)
{
rtc_init();
g_rtc_boot_time = rtc_gettime();
/* Configure System Clock based on desired clock rate @ sys_config.h */
sys_clock_configure();
configure_flash_acceleration(sys_get_cpu_clock());
/* Setup default interrupt priorities that will work with FreeRTOS */
configure_interrupt_priorities();
/* These methods shouldn't be needed but doing it anyway to be safe */
NVIC_SetPriorityGrouping(0);
__set_BASEPRI(0);
__enable_fault_irq();
__enable_irq();
/* Setup UART with minimal I/O functions */
uart0_init(SYS_CFG_UART0_BPS);
sys_set_outchar_func(uart0_putchar);
sys_set_inchar_func(uart0_getchar);
/**
* Turn off I/O buffering otherwise sometimes printf/scanf doesn't behave
* correctly due to strange buffering and/or flushing effects.
*/
setvbuf(stdout, 0, _IONBF, 0);
setvbuf(stdin, 0, _IONBF, 0);
/* Initialize newlib fopen() fread() calls support */
syscalls_init();
/* Enable the watchdog to allow us to recover in an event of system crash */
sys_watchdog_enable();
/* Uart and printf() are initialized, so print our boot-up message */
print_boot_info();
}
/**
* Initializes the minimal system including CPU Clock, UART, and Flash accelerator
* Be careful of the order of operations!!!
*/
void low_level_init(void)
{
rtc_init();
g_rtc_boot_time = rtc_gettime();
/**
* Configure System Clock based on desired clock rate @ sys_config.h
* Setup default interrupt priorities that will work with FreeRTOS
*/
sys_clock_configure();
configure_flash_acceleration(sys_get_cpu_clock());
configure_interrupt_priorities();
__enable_irq();
// Setup UART with minimum I/O functions
uart0_init(UART0_DEFAULT_RATE_BPS);
sys_set_outchar_func(uart0_putchar);
sys_set_inchar_func(uart0_getchar);
/**
* Turn off I/O buffering otherwise sometimes printf/scanf doesn't behave
* correctly due to strange buffering and/or flushing effects.
*/
setvbuf(stdout, 0, _IONBF, 0);
setvbuf(stdin, 0, _IONBF, 0);
// Initialize newlib fopen() fread() calls support
syscalls_init();
/**
* Enable watchdog to allow us to recover in case of:
* - We attempt to run an application and it's not there
* - Application we ran crashes
*/
sys_watchdog_enable();
print_boot_info();
}
bool terminalTask::taskEntry()
{
/* remoteTask() creates shared object in its init(), so we can get it now */
CommandProcessor &cp = mCmdProc;
// System information handlers
cp.addHandler(taskListHandler, "info", "Task/CPU Info. Use 'info 200' to get CPU during 200ms");
cp.addHandler(memInfoHandler, "meminfo", "See memory info");
cp.addHandler(healthHandler, "health", "Output system health");
cp.addHandler(timeHandler, "time", "'time' to view time. 'time set MM DD YYYY HH MM SS Wday' to set time");
// File I/O handlers:
cp.addHandler(catHandler, "cat", "Read a file. Ex: 'cat 0:file.txt' or "
"'cat 0:file.txt -noprint' to test if file can be read");
cp.addHandler(cpHandler, "cp", "Copy files from/to Flash/SD Card. Ex: 'cp 0:file.txt 1:file.txt'");
cp.addHandler(dcpHandler, "dcp", "Copy all files of a directory to another directory. Ex: 'dcp 0:src 1:dst'");
cp.addHandler(lsHandler, "ls", "Use 'ls 0:' for Flash, or 'ls 1:' for SD Card");
cp.addHandler(mkdirHandler, "mkdir", "Create a directory. Ex: 'mkdir test'");
cp.addHandler(mvHandler, "mv", "Rename a file. Ex: 'rm 0:file.txt 0:new.txt'");
cp.addHandler(newFileHandler,"nf", "Write a new file. Ex: 'nf <file.txt>");
cp.addHandler(rmHandler, "rm", "Remove a file. Ex: 'rm 0:file.txt'");
// Misc. handlers
cp.addHandler(i2cIoHandler, "i2c", "'i2c read 0x01 0x02 <count>' : Reads device 0x01, and register 0x02\n"
"'i2c write 0x01 0x02 0x03' : Writes device 0x01, reg 0x02, data 0x03\n"
"'i2c discover' : Discover I2C devices");
#if TERMINAL_USE_CAN_BUS_HANDLER
CMD_HANDLER_FUNC(canBusHandler);
cp.addHandler(canBusHandler, "canbus", "'canbus init' : initialize CAN-1\n"
"'canbus filter <id>' : Add 29-bit ID fitler\n"
"'canbus tx <msg id> <len> <byte0> <byte1> ...' : Send CAN Message\n"
"'canbus rx <timeout in ms>' : Receive a CAN message\n"
"'canbus registers' : See some of CAN BUS registers");
#endif
cp.addHandler(storageHandler, "storage", "Parameters: 'format sd', 'format flash', 'mount sd', 'mount flash'");
cp.addHandler(rebootHandler, "reboot", "Reboots the system");
cp.addHandler(logHandler, "log", "'log <hello>': log an info message\n"
"'log flush' : flush the logs\n"
"' log status': get status of the logger\n"
"'log enableprint debug/info/warn/error' : Enables logger calls to printf\n"
"'log disableprint debug/info/warn/error': Disables logger calls to printf\n"
);
cp.addHandler(learnIrHandler, "learn", "Begin to learn IR codes for numbers 0-9");
cp.addHandler(wirelessHandler, "wireless", "Use 'wireless' to see the nested commands");
/* Firmware upgrade handlers
* Please read "netload_readme.txt" at ref_and_datasheets directory.
*/
CMD_HANDLER_FUNC(getFileHandler);
CMD_HANDLER_FUNC(flashProgHandler);
cp.addHandler(getFileHandler, "file", "Get a file using netload.exe or by using the following protocol:\n"
"Write buffer: buffer <offset> <num bytes> ...\n"
"Write buffer to file: commit <filename> <file offset> <num bytes from buffer>");
cp.addHandler(flashProgHandler, "flash", "'flash <filename>' Will flash CPU with this new binary file");
#if (SYS_CFG_ENABLE_TLM)
cp.addHandler(telemetryHandler, "telemetry", "Outputs registered telemetry: "
"'telemetry save' : Saves disk tel\n"
"'telemetry ascii' : Prints all telemetry in human readable format\n"
"'telemetry <comp. name> <name> <value>' to set a telemetry variable\n"
"'telemetry get <comp. name> <name>' to get variable value\n");
#endif
// Initialize Interrupt driven version of getchar & putchar
Uart0& uart0 = Uart0::getInstance();
bool success = uart0.init(SYS_CFG_UART0_BPS, 32, SYS_CFG_UART0_TXQ_SIZE);
uart0.setReady(true);
sys_set_inchar_func(uart0.getcharIntrDriven);
sys_set_outchar_func(uart0.putcharIntrDriven);
/* Add UART0 to command input/output */
addCommandChannel(&uart0, true);
#if TERMINAL_USE_NRF_WIRELESS
do {
NordicStream& nrf = NordicStream::getInstance();
nrf.setReady(true);
addCommandChannel(&nrf, false);
} while(0);
#endif
#if SYS_CFG_ENABLE_TLM
/* Telemetry should be registered at this point, so initialize the binary
* telemetry space that we periodically check to save data to disk
*/
tlm_component *disk = tlm_component_get_by_name(SYS_CFG_DISK_TLM_NAME);
mDiskTlmSize = tlm_binary_get_size_one(disk);
mpBinaryDiskTlm = new char[mDiskTlmSize];
if (success) {
success = (NULL != mpBinaryDiskTlm);
}
/* Now update our copy of disk telemetry */
tlm_binary_get_one(disk, mpBinaryDiskTlm);
#endif
/* Display "help" command on UART0 */
STR_ON_STACK(help, 8);
help = "help";
mCmdProc.handleCommand(help, uart0);
return success;
}
/**
* 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 int stacked_r0 ;
volatile unsigned int stacked_r1 ;
volatile unsigned int stacked_r2 ;
volatile unsigned int stacked_r3 ;
volatile unsigned int stacked_r12 ;
volatile unsigned int stacked_lr ;
volatile unsigned int stacked_pc ;
volatile unsigned int stacked_psr ;
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]) ;
sys_set_outchar_func(uart0_putchar);
puts("\nSystem Crash!");
printf("Registers: 0x%08X, 0x%08X, 0x%08X, 0x%08X, 0x%08X\n",
stacked_r0, stacked_r1, stacked_r2, stacked_r3, stacked_r12);
printf("LR: 0x%08X, PC: 0x%08X, PSR: 0x%08X\n", stacked_lr, stacked_pc, stacked_psr);
FAULT_EXISTS = 0xDEADBEEF;
FAULT_PC = stacked_pc;
FAULT_LR = stacked_lr;
FAULT_PSR = stacked_psr;
delay_us(10 * 1000 * 1000);
sys_reboot();
#if (1 == USE_EXPERIMENTAL_UNWIND)
int depth=0;
printf("Instructions: ");
_Unwind_Backtrace(&trace_fcn, &depth);
#endif
#if 0
// Configurable Fault Status Register
// Consists of MMSR, BFSR and UFSR
volatile unsigned int _CFSR = (*((volatile unsigned long *)(0xE000ED28))) ;
// Hard Fault Status Register
volatile unsigned int _HFSR = (*((volatile unsigned long *)(0xE000ED2C))) ;
// Debug Fault Status Register
volatile unsigned int _DFSR = (*((volatile unsigned long *)(0xE000ED30))) ;
// Auxiliary Fault Status Register
volatile unsigned int _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
volatile unsigned int _MMAR = (*((volatile unsigned long *)(0xE000ED34))) ;
// Bus Fault Address Register
volatile unsigned int _BFAR = (*((volatile unsigned long *)(0xE000ED38))) ;
__asm("BKPT #0\n") ; // Break into the debugger
#endif
while(1);
}