Content originally posted in LPCWare by mbilal on Fri Dec 26 02:38:41 MST 2014
I wrote IAP flash algorithm for LPC5410 512K Flash board.
I always get a hard fault on preparing a single scetor or any other IAP command.
Below is my code:
#include <stdio.h>
/* Total number of command. */
#define COMMAND_LENGTH 5
/* Total number of return status. */
#define RESULT_LENGTH 5
#define COMMAND_PREPARE 50
#define COMMAND_PROGRAM 51
#define COMMAND_ERASE 52
#define COMMAND_PAGE_ERASE 59
#define COMMAND_PART_NUMBER 54
/* Define the IAP location entry point. */
#define IAP_LOCATION 0x03000204
/* Setting the function pointer that takes IAP command table and result table pointers. */
typedef void (*iap) (unsigned int *, unsigned int *);
unsigned int lpc5410x_prepare_sector (unsigned int sector)
{
unsigned int command[COMMAND_LENGTH];
unsigned int result[RESULT_LENGTH];
iap iap_entry = (iap) IAP_LOCATION;
command[0] = COMMAND_PREPARE;
command[1] = sector;
command[2] = sector;
(*iap_entry) (command, result);
printf("The result of prepared sector number (%d) is %d", sector, result[0]);
return result[0];
}
static __inline__ unsigned int __attribute__ ((always_inline))
lpc5410x_page_erase (unsigned int sector)
{
unsigned int command[COMMAND_LENGTH];
unsigned int result[RESULT_LENGTH];
iap iap_entry = (iap) IAP_LOCATION;
command[0] = COMMAND_PAGE_ERASE;
command[1] = sector;
command[2] = sector;
iap_entry (command, result);
printf("The result of page erase number (%d) is %d", sector, result[0]);
return result[0];
}
/* Erase sector SECTOR. */
static __inline__ unsigned int __attribute__ ((always_inline))
lpc5410x_erase_sector (unsigned int sector)
{
unsigned int command[COMMAND_LENGTH];
unsigned int result[RESULT_LENGTH];
iap iap_entry = (iap) IAP_LOCATION;
command[0] = COMMAND_ERASE;
command[1] = sector;
command[2] = sector;
iap_entry (command, result);
printf("The result of erase sector number (%d) is %d", sector, result[0]);
return result[0];
}
static __inline__ unsigned int __attribute__ ((always_inline))
lpc5410x_part_number ()
{
unsigned int command[COMMAND_LENGTH];
unsigned int result[RESULT_LENGTH];
iap iap_entry = (iap) IAP_LOCATION;
command[0] = COMMAND_PART_NUMBER;
iap_entry (command, result);
printf("The result of part identification number is %d",result[0]);
return result[0];
}
static __inline__ unsigned int __attribute__ ((always_inline))
lpc5410x_program_sector (unsigned int dest, unsigned int src, unsigned int len)
{
unsigned int command[COMMAND_LENGTH];
unsigned int result[RESULT_LENGTH];
iap iap_entry = (iap) IAP_LOCATION;
command[0] = COMMAND_PROGRAM;
command[1] = dest;
command[2] = src;
command[3] = len;
iap_entry (command, result);
return result[0];
}
int main ()
{
lpc5410x_prepare_sector (1);
// Erase a single sector
lpc5410x_erase_sector(1);
return 0;
}
I also saved top 32 bytes of SRAM space for this and set voltage with Power API command.
I always got Hard fault at line (below) of every command.
iap_entry (command, result);
Is IAP_Location 0x03000204 has been described correct in LPC5410x manual or I'am doing something wrong.
Please help me on this regard.
It will be very appreciated.
