LPC1788 IAP Problem

I'm working on LPC1788, trying to use In Application Programming, and in
one project where I implemented this code:

#define IAP_BASE1 0x00030000 
#define IAP_BASE2 0x00038000 
#define IAP_BASE3 0x00040000

int main(void) {

BYTE podatak1, podatak2, podatak3;
DWORD *pointer_podatak1, *pointer_podatak2, *pointer_podatak3;
uart0();

NVIC_DisableIRQ(TIMER0_IRQn); 
NVIC_DisableIRQ(TIMER1_IRQn);
NVIC_DisableIRQ(UART0_IRQn);

podatak1 = 0x33;
podatak2 = 0x63;
podatak3 = 0x84;

iap_copy_to_flash(&podatak1, IAP_BASE1, 1);
delay_1_ms();
iap_copy_to_flash(&podatak2, IAP_BASE2, 1);
delay_1_ms();
iap_copy_to_flash(&podatak3, IAP_BASE3, 1);
delay_1_ms();

pointer_podatak1 = (DWORD*) IAP_BASE1;
pointer_podatak2 = (DWORD*) IAP_BASE2;
pointer_podatak3 = (DWORD*) IAP_BASE3;

LPC_UART0->THR = *pointer_podatak1;
delay_1_ms();
LPC_UART0->THR = *pointer_podatak2;
delay_1_ms();
LPC_UART0->THR = *pointer_podatak3;
delay_1_ms();

while(1)
{
}

}

It works perfectly, but when I try to utilize it in my main project, I've
got nothing written on flash memory locations I indicated. Here is the
code in my main project to read and write from flash:

#define OFFSET_ADDRESS 0x00030000 
#define OFFSET_VERSION 0x00038000
#define OFFSET_SERIAL 0x00040000

void write_to_flash (void) { 
BYTE i;
DWORD *pointer_podatak1, *pointer_podatak2, *pointer_podatak3;

iap_copy_to_flash(&display_address, OFFSET_ADDRESS, 1);
delay_1_ms();

iap_copy_to_flash(&version, OFFSET_VERSION, 1);
delay_1_ms();

for (i=0;i<8;i++) {

iap_copy_to_flash(&serial_no, OFFSET_SERIAL+i, 1);
delay_1_ms();

} 
}

void read_from_flash (void) {

BYTE i;
DWORD *pok_add, *pok_ver, *pok_serial_no;

pok_add = (DWORD*)OFFSET_ADDRESS;
display_address = *pok_add;
delay_1_ms();
if ((display_address > MAX_OUTDOOR_DISPLAY_ADDRESS) || (display_address <
MIN_OUTDOOR_DISPLAY_ADDRESS)) display_address = UNI_ADDRESS;

pok_ver = (DWORD*)OFFSET_VERSION;
version = *pok_ver;
delay_1_ms();
if (version > MAX_FW_VERSION) version = 0;

for (i=0;i<8;i++) {
pok_serial_no = (DWORD*)OFFSET_SERIAL;
serial_no = *pok_serial_no++;
delay_1_ms();
}
for (i=0;i<8;i++) if (serial_no > 9) serial_no = 0;

}

display_address, version and serial_no[] are global variables which are
forwarded to these two functions write_to_flash and read_from_flash.
Anyone knows maybe what can cause the problem, even if the correct and
working code is implemented in main project?



---------------------------------------
Posted through http://www.EmbeddedRelated.com

On Saturday, May 23, 2015 at 1:07:17 PM UTC-4, Lazar92 wrote:
> I'm working on LPC1788, trying to use In Application Programming, and in
> one project where I implemented this code:
> 
> #define IAP_BASE1 0x00030000 
> #define IAP_BASE2 0x00038000 
> #define IAP_BASE3 0x00040000
> 
> int main(void) {
> 
> BYTE podatak1, podatak2, podatak3;
> DWORD *pointer_podatak1, *pointer_podatak2, *pointer_podatak3;
> uart0();
> 
> NVIC_DisableIRQ(TIMER0_IRQn); 
> NVIC_DisableIRQ(TIMER1_IRQn);
> NVIC_DisableIRQ(UART0_IRQn);
> 
> podatak1 = 0x33;
> podatak2 = 0x63;
> podatak3 = 0x84;
> 
> iap_copy_to_flash(&podatak1, IAP_BASE1, 1);
> delay_1_ms();
> iap_copy_to_flash(&podatak2, IAP_BASE2, 1);
> delay_1_ms();
> iap_copy_to_flash(&podatak3, IAP_BASE3, 1);
> delay_1_ms();
> 
> pointer_podatak1 = (DWORD*) IAP_BASE1;
> pointer_podatak2 = (DWORD*) IAP_BASE2;
> pointer_podatak3 = (DWORD*) IAP_BASE3;
> 
> LPC_UART0->THR = *pointer_podatak1;
> delay_1_ms();
> LPC_UART0->THR = *pointer_podatak2;
> delay_1_ms();
> LPC_UART0->THR = *pointer_podatak3;
> delay_1_ms();
> 
> while(1)
> {
> }
> 
> }
> 
> It works perfectly, but when I try to utilize it in my main project, I've
> got nothing written on flash memory locations I indicated. Here is the
> code in my main project to read and write from flash:
> 
> #define OFFSET_ADDRESS 0x00030000 
> #define OFFSET_VERSION 0x00038000
> #define OFFSET_SERIAL 0x00040000
> 
> void write_to_flash (void) { 
> BYTE i;
> DWORD *pointer_podatak1, *pointer_podatak2, *pointer_podatak3;
> 
> iap_copy_to_flash(&display_address, OFFSET_ADDRESS, 1);
> delay_1_ms();
> 
> iap_copy_to_flash(&version, OFFSET_VERSION, 1);
> delay_1_ms();
> 
> for (i=0;i<8;i++) {
> 
> iap_copy_to_flash(&serial_no, OFFSET_SERIAL+i, 1);
> delay_1_ms();
> 
> } 
> }
> 
> void read_from_flash (void) {
> 
> BYTE i;
> DWORD *pok_add, *pok_ver, *pok_serial_no;
> 
> pok_add = (DWORD*)OFFSET_ADDRESS;
> display_address = *pok_add;
> delay_1_ms();
> if ((display_address > MAX_OUTDOOR_DISPLAY_ADDRESS) || (display_address <
> MIN_OUTDOOR_DISPLAY_ADDRESS)) display_address = UNI_ADDRESS;
> 
> pok_ver = (DWORD*)OFFSET_VERSION;
> version = *pok_ver;
> delay_1_ms();
> if (version > MAX_FW_VERSION) version = 0;
> 
> for (i=0;i<8;i++) {
> pok_serial_no = (DWORD*)OFFSET_SERIAL;
> serial_no = *pok_serial_no++;
> delay_1_ms();
> }
> for (i=0;i<8;i++) if (serial_no > 9) serial_no = 0;
> 
> }
> 
> display_address, version and serial_no[] are global variables which are
> forwarded to these two functions write_to_flash and read_from_flash.
> Anyone knows maybe what can cause the problem, even if the correct and
> working code is implemented in main project?
> 
> 
> 
> ---------------------------------------
> Posted through http://www.EmbeddedRelated.com

I've not used this particular part, however:
- you say "works perfectly", but you do not check the return codes from write operation?
- did you previously "prepare" and "erase" the sectors?
See page 896 in the manual you linked...

Hope that helps!
Best Regards, Dave