Hello,
I am work on OMAPL138 LCDK kit.
I want to make pin GP1[8] as a input for that I write the code
#define PINMUX3_GPIO1_8_ENABLE (SYSCFG_PINMUX3_PINMUX3_3_0_GPIO1_8 << \
SYSCFG_PINMUX3_PINMUX3_3_0_SHIFT)
PSCModuleControl(SOC_PSC_1_REGS, HW_PSC_GPIO, PSC_POWERDOMAIN_ALWAYS_ON,PSC_MDCTL_NEXT_ENABLE);
input_pin_gp1_8_multiplex_setup();
GPIODirModeSet(SOC_GPIO_0_REGS, 25, GPIO_DIR_INPUT);
GPIOPinRead(SOC_GPIO_0_REGS, 25);
static void input_pin_gp1_8_multiplex_setup(void)
{
unsigned int savePinmux = 0;
/*
** Clearing the bit in context and retaining the other bit values
** in PINMUX3 register.
*/
savePinmux = (HWREG(SOC_SYSCFG_0_REGS + SYSCFG0_PINMUX(3)) &
~(SYSCFG_PINMUX3_PINMUX3_3_0));
/* Setting the pins corresponding to GP1[8] in PINMUX3 register.*/
HWREG(SOC_SYSCFG_0_REGS + SYSCFG0_PINMUX(3)) =
(PINMUX3_GPIO1_8_ENABLE | savePinmux);
}
I give the fixed HIGH signal (3.3V, checked with multimeter).
But when I read this signal, some times I get high value or some times low value.
Please give me the some solution for that.
regards
Sachin Arora
