After trying for 2 days I have exhausted all my ideas on why I can’t get port 2 of my lpc2387 to change. I am just trying to set port 2 to a simple ascii character on p0.0 to p0.7. The instructions work for fast port 0 but not on fast port 2. The instructions are just things I attempted to do that didnot make any diffference. At the end of this code a = the proper 0x1b but z always = 0x0e. And the physical pins show output of 0x0e.
This code is near the start of the program and no other programs have messed with the port set-ups. I also tried using 32 bit instructions but still with the same result.
If anyone can see anything I missed, I would be very appreciative.
regards to all;
SCS = 0x21; //fast io0&1 enabled external clock started
// IO0DIR |= (1<<4); //led to output
FIO0DIR |= (1<<4); //led to output
FIO0CLR0 = (0x10); //LED ON ATEST
FIO0SET0 = (0x10); //BYTE INSTRUCTION works great!
//FIO0CLR = (1<<4); //LED ON ATEST
//FIO0SET = (1<<4); //BYTE INSTRUCTION
// FIO0PIN0 = d; //BYTE INSTRUCTION
// PINSEL4 = 0; //PORT 2 IS GPIO
// FIO2MASK = 0; //ENABLE ALL BITS
// PINMODE4 = 0xaaaaaaaa;
FIO2DIR |= 0x000000ff; //BYTE INSTRUCTION
FIO2CLR0 = 0xFF; //port2 bits 0-7 BYTE INSTRUCTION
FIO2SET0 = 0x1b; //test BYTE INSTRUCTION
//FIO2PIN0 = 0x1b; //BYTE INSTRUCTION
a= FIO2SET0;
z = FIO2PIN0; //TEMP TEST no good