Part Number: TM4C129XNCZAD
Dear sir,
My bootloader rest on 0x0000 and application rest on 0x4000
I add t wo files to bootloader bl_version.c and bl_version.h. but not able to write to to trhe flash memory of location 0x3F00. This location i have to read through application software i am getting FF FF FF FF.
bl_version.c below code
#include "bl_version.h"
/* Mark as used so linker never removes it */
__attribute__((section(".BOOT_VER"), used))
const BL_VERSION_T BootloaderVersion =
{
BL_MAGIC,
BL_VER_MAJOR,
BL_VER_MINOR,
BL_VER_PATCH,
0xFF
};
bl_version.h header file have
#ifndef __BL_VERSION_H__
#define __BL_VERSION_H__
#include <stdint.h>
#define BL_VER_MAJOR 1
#define BL_VER_MINOR 0
#define BL_VER_PATCH 0
#define BL_MAGIC 0xB00710AD
#define BL_VERSION_ADDR 0x00003F00
typedef struct
{
uint32_t magic;
uint8_t major;
uint8_t minor;
uint8_t patch;
uint8_t reserved;
} BL_VERSION_T;
/* Version object defined in bl_version.c */
extern const BL_VERSION_T BootloaderVersion;
#endif /* __BL_VERSION_H__ */
scatter file is
FLASH 0x00000000 0x00010000
{
RESET 0x00000000 0x00003F00
{
*.o (RESET, +First)
.ANY (+RO)
}
BOOT_VER 0x00003F00 0x00000100
{
*(.BOOT_VER)
}
SRAM 0x20000000 0x00010000
{
.ANY (+RW +ZI)
}
}
still show FF FF FF FF on memory location 0x3F00
Kindly do the needful
