Hi all Experts,
I'm trying a code where I want to jump from one location to another. Here is my code
#include <msp430FR5969.h>
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#pragma location="FLASHCODE" // Define flash segment code
void dummy_code()@ "FLASHCODE"
{
int a=0,b=0;
for (a=0;a<10;a++)
{
b=b+1;
//_NOP();
}
_NOP();
asm("BR #0x4432");
}
unsigned char BSL_Flag = 0;
void TI_MSPBoot_JumpToBoot( void )
{
__disable_interrupt(); // Disable all interrupts
dummy_code();
}
static void clock_init(void)
{
CSCTL0_H = CSKEY_H;
CSCTL1 = DCOFSEL_6; // Set DCO = 8Mhz
CSCTL2 = SELA__VLOCLK + SELM__DCOCLK + SELS__DCOCLK; // set ACLK = VLO
// MCLK=SMCLK=DCO
CSCTL3 = DIVA__1 + DIVS__8 + DIVM__8; // Divide DCO/8
}
void test_jump_application()
{
int l;
for(l = 0; l<10 ; l++)
{
_NOP();
}
}
int main( void )
{
// Stop watchdog timer to prevent time out reset
WDTCTL = WDTPW + WDTHOLD;
// Initialize MPU
//MPU_init();
clock_init();
TI_MSPBoot_JumpToBoot();
BSL_Flag = 0xED;
BSL_Flag = 0xE0;
test_jump_application(); // address location 0x4432
return 0;
}
Issue is when it goes to dummy_code() it is directly jumping to test_jump_application up to this flow is good as expected. But after executing the test_jump_application it is executing
BSL_Flag = 0xED;
BSL_Flag = 0xE0;
test_jump_application();
I want to skip these above three statements.
why program counter is executing these above statement when I use asm("BR #0x4432"); statement.
Can anyone please clearify me this doubt?
