Posted on July 07, 2003 at 14:19 Hi!
I'm working on a ST72F521R9T3 and the indart demo board of Softec.
I want to manage interrupts on port A of my micrcontroller.
When I change the value on port A with a DIPswitch, the program does not go to the interrupt function defined.
When I look the value of PADR, it doesn't change.
I'm sure that Port A is working.
Here is my code, can you help me please?
include ''ST72F5h''
include ''starth''
void main (void) {
//enable interrupts
asm RIM;
// configures port A as input
PADDR = 0x00;
PAOR = 0xFF;
// Configures port D as output
PDDDR = 0xFF;
PDOR = 0xFF;
PDDR = 0x00;
ISPR0 = 0x00;
ISPR1 = 0x00;
ISPR2 = 0x00;
ISPR3 = 0x00;
EICR = 0x00;
// Enables the A/D peripheral on PC5
ADCCSR = 0x2D;
for(;
{
// Waits for the end of the conversion
while(!(ADCCSR & 0x80))
;
// Reads the A/D value and writes it on the LEDs
PDDR = ADCDRH;
}
}
pragma TRAP_PROC SAVE_REGS
void interrupt 4 main_ei0(void) {
while(PCDR!=0x20)
PDDR=!PDDR;
_startupData.main();
}
[ This message was edited by: Junior on 07-07-2003 17:50 ]
[ This message was edited by: Junior on 07-07-2003 17:51 ]
[ This message was edited by: Junior on 08-07-2003 11:04 ]
