I am building a Cypress USB-MCU AN2131QC board. I faced a problem of setting logic 1 from pins to Port A. Would anybody please tell us why is the code goes wrong? ^.^
#include "ezusb.h" #include "ezregs.h" void main() { PORTACFG = 0x00; // bits 7..0 are I/O OEA = 0x00; // port A for inputs // wait until pin 1 of Port A is set to logic 1 while(1) { // check input for pin 1 if( PINSA & bmBIT1 != 0 ) break; } // set port B PORTBCFG = 0xFF; OEB = 0xFF; OUTB = 0xFF; // my code always come to here no matter i set pin 1 of PORT A or not. // Is this right for input a logic for a pin??? }