I'm not able to make it work the GPIO P1.0-P1.3 of LPC1114. Both in hardware as in keil debug the GPIO's P1.0 dont clear.
int main() { /* Enable AHB clock to the GPIO domain. */ LPC_SYSCON->SYSAHBCLKCTRL |= (0x1UL << 16); /* enable clock for IOCON */ LPC_SYSCON->SYSAHBCLKCTRL |= (0x1UL << 6); /* enable clock for GPIO */ LPC_IOCON->R_PIO1_0 |= 0x01; /* P1.0 as GPIO */ LPC_GPIO1->DIR |= (1UL << 0); /* P1.0 as GPIO */ LPC_GPIO1->DATA &= ~(1UL << 0); /* Clear P1.0 */ //*********Don't work while(1); }
what's wrong with this code?
PIO1_0/AD1/CT32B1_CAP0/TMS 33 PIO1_1/AD2/CT32B1_MAT0/TDO 34 PIO1_2/AD3/CT32B1_MAT1/TRST/ 35 PIO1_3/AD4/CT32B1_MAT2/SWD 39 PIO1_4/AD5/CT32B1_MAT3/WAKEUP
The MCB1000 schematic shows the functions of the pins.
Does your board use a JTAG connector.. Is it possible that these pins are tied to Jtag. The MCB1000 does not have a jtag. but pin PIO1_3 goes to a Debug connector and to a header or socket.
PIO1_3 looks to be the SWD pin for the chip. Probably should not try to use for other purposes if you are using the debug port.