Content originally posted in LPCWare by robin48gx on Fri Nov 29 08:07:30 MST 2013
#define COMM_BK_MAX_BUFFER_SIZE 512
volatile unsigned char *COMMBKBuffer = 0x78000; /* Buffer used by application : copied from lpcxx_pinsel.c 28NOV2013 */
void
write_comm_bk()
{
int start_address = (uint32_t) & comm_backup;
int received_data = 0;
int more_data=1,ec;
int crp_mode;
static int * crp_modep = 0x000002FC;
crp_mode = *crp_modep;
printf("serial_eeprom::write_comm_bk entered with CRP 0x%x %d\n", crp_mode, crp_mode);
if(u32IAP_PrepareSectors(29, 29) != IAP_STA_CMD_SUCCESS) {// 64k for fonts, at top of flash memory
printf("serial_eeprom::write_comm_bk Failed to prepare flash for erase\n");
return;
}
if (u32IAP_EraseSectors(29,29) != IAP_STA_CMD_SUCCESS) {
printf("serial_eeprom::write_comm_bk Failed to Erase flash.\n");
return;
}
do {
// uint32_t u32IAP_CopyRAMToFlash(uint32_t u32DstAddr, uint32_t u32SrcAddr, uint32_t u32Len)
if((ec=u32IAP_CopyRAMToFlash( (uint32_t)COMMBKBuffer+ received_data, start_address + received_data, COMM_BK_MAX_BUFFER_SIZE)) == IAP_STA_CMD_SUCCESS){
printf("serial_eeprom::write_comm_bk Writing at %X\n",
start_address + received_data);
/*Verify the flash contents with the contents in RAM */
if(u32IAP_Compare(start_address + received_data, (uint32_t)COMMBKBuffer+ received_data, COMM_BK_MAX_BUFFER_SIZE, 0) == IAP_STA_CMD_SUCCESS){
printf("serial_eeprom::write_comm_bk Verify at %X OK\n",
start_address + received_data);
}
else {
printf("serial_eeprom::write_comm_bk Verify failed at %X ec %d\n",
start_address + received_data,ec);
return;
}
}
else {
printf("serial_eeprom::write_comm_bk Write failed at RAM 0x%8.8X FLASHROM 0x%8.8X ec %d\n",
start_address + received_data, COMMBKBuffer+ received_data,ec);
return;
}
received_data += COMM_BK_MAX_BUFFER_SIZE;
if ( received_data >= sizeof(comm_backup) )
more_data = 0;
else
more_data = 1;
} while (more_data);
//f_close(&fdr);
printf("serial_eeprom::write_comm_bk Complete reveived data is %d\n", received_data);
}
This code give the following from its printfs':
serial_eeprom::init_comm_backup() called
serial_eeprom::write_comm_bk entered with CRP 0x320f24c 52490828
serial_eeprom::write_comm_bk Write failed at RAM 0x10005E30 FLASHROM 0x00078000 ec 9
.
What am I doing wrong. ec 9 appears to be a PARAM_ERROR but I cannot see what I have done wrong.
