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|
//*****************************************************************************
//
// pinout.c - Function to configure the device pins on the EK-TM4C1294XL.
//
// Copyright (c) 2013-2014 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 2.1.0.12573 of the EK-TM4C1294XL Firmware Package.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_gpio.h"
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "driverlib/gpio.h"
#include "driverlib/pin_map.h"
#include "driverlib/rom.h"
#include "driverlib/rom_map.h"
#include "driverlib/sysctl.h"
#include "drivers/pinout.h"
//*****************************************************************************
//
//! \addtogroup pinout_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
//! Configures the device pins for the standard usages on the EK-TM4C1294XL.
//!
//! \param bEthernet is a boolean used to determine function of Ethernet pins.
//! If true Ethernet pins are configured as Ethernet LEDs. If false GPIO are
//! available for application use.
//! \param bUSB is a boolean used to determine function of USB pins. If true USB
//! pins are configured for USB use. If false then USB pins are available for
//! application use as GPIO.
//!
//! This function enables the GPIO modules and configures the device pins for
//! the default, standard usages on the EK-TM4C1294XL. Applications that
//! require alternate configurations of the device pins can either not call
//! this function and take full responsibility for configuring all the device
//! pins, or can reconfigure the required device pins after calling this
//! function.
//!
//! \return None.
//
//*****************************************************************************
void
PinoutSet(bool bEthernet, bool bUSB)
{
//
// Enable all the GPIO peripherals.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOG);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOH);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOJ);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOK);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOL);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOM);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPION);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOP);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOQ);
//
// PA0-1 are used for UART0.
//
ROM_GPIOPinConfigure(GPIO_PA0_U0RX);
ROM_GPIOPinConfigure(GPIO_PA1_U0TX);
ROM_GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
//
// PB0-1/PD6/PL6-7 are used for USB.
// PQ4 can be used as a power fault detect on this board but it is not
// the hardware peripheral power fault input pin.
//
if(bUSB)
{
HWREG(GPIO_PORTD_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY;
HWREG(GPIO_PORTD_BASE + GPIO_O_CR) = 0xff;
ROM_GPIOPinConfigure(GPIO_PD6_USB0EPEN);
ROM_GPIOPinTypeUSBAnalog(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1);
ROM_GPIOPinTypeUSBDigital(GPIO_PORTD_BASE, GPIO_PIN_6);
ROM_GPIOPinTypeUSBAnalog(GPIO_PORTL_BASE, GPIO_PIN_6 | GPIO_PIN_7);
ROM_GPIOPinTypeGPIOInput(GPIO_PORTQ_BASE, GPIO_PIN_4);
}
else
{
//
// Keep the default config for most pins used by USB.
// Add a pull down to PD6 to turn off the TPS2052 switch
//
ROM_GPIOPinTypeGPIOInput(GPIO_PORTD_BASE, GPIO_PIN_6);
MAP_GPIOPadConfigSet(GPIO_PORTD_BASE, GPIO_PIN_6, GPIO_STRENGTH_2MA,
GPIO_PIN_TYPE_STD_WPD);
}
//
// PF0/PF4 are used for Ethernet LEDs.
//
if(bEthernet)
{
//
// this app wants to configure for ethernet LED function.
//
ROM_GPIOPinConfigure(GPIO_PF0_EN0LED0);
ROM_GPIOPinConfigure(GPIO_PF4_EN0LED1);
GPIOPinTypeEthernetLED(GPIO_PORTF_BASE, GPIO_PIN_0 | GPIO_PIN_4);
}
else
{
//
// This app does not want Ethernet LED function so configure as
// standard outputs for LED driving.
//
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_0 | GPIO_PIN_4);
//
// Default the LEDs to OFF.
//
ROM_GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_0 | GPIO_PIN_4, 0);
MAP_GPIOPadConfigSet(GPIO_PORTF_BASE, GPIO_PIN_0 | GPIO_PIN_4,
GPIO_STRENGTH_12MA, GPIO_PIN_TYPE_STD);
}
//
// PJ0 and J1 are used for user buttons
//
ROM_GPIOPinTypeGPIOInput(GPIO_PORTJ_BASE, GPIO_PIN_0 | GPIO_PIN_1);
ROM_GPIOPinWrite(GPIO_PORTJ_BASE, GPIO_PIN_0 | GPIO_PIN_1, 0);
//
// PN0 and PN1 are used for USER LEDs.
//
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTN_BASE, GPIO_PIN_0 | GPIO_PIN_1);
MAP_GPIOPadConfigSet(GPIO_PORTN_BASE, GPIO_PIN_0 | GPIO_PIN_1,
GPIO_STRENGTH_12MA, GPIO_PIN_TYPE_STD);
//
// Default the LEDs to OFF.
//
ROM_GPIOPinWrite(GPIO_PORTN_BASE, GPIO_PIN_0 | GPIO_PIN_1, 0);
}
//*****************************************************************************
//
//! This function writes a state to the LED bank.
//!
//! \param ui32LEDMask is a bit mask for which GPIO should be changed by this
//! call.
//! \param ui32LEDValue is the new value to be applied to the LEDs after the
//! ui32LEDMask is applied.
//!
//! The first parameter acts as a mask. Only bits in the mask that are set
//! will correspond to LEDs that may change. LEDs with a mask that is not set
//! will not change. This works the same as GPIOPinWrite. After applying the
//! mask the setting for each unmasked LED is written to the corresponding
//! LED port pin via GPIOPinWrite.
//!
//! \return None.
//
//*****************************************************************************
void
LEDWrite(uint32_t ui32LEDMask, uint32_t ui32LEDValue)
{
//
// Check the mask and set or clear the LED as directed.
//
if(ui32LEDMask & CLP_D1)
{
if(ui32LEDValue & CLP_D1)
{
GPIOPinWrite(CLP_D1_PORT, CLP_D1_PIN, CLP_D1_PIN);
}
else
{
GPIOPinWrite(CLP_D1_PORT, CLP_D1_PIN, 0);
}
}
if(ui32LEDMask & CLP_D2)
{
if(ui32LEDValue & CLP_D2)
{
GPIOPinWrite(CLP_D2_PORT, CLP_D2_PIN, CLP_D2_PIN);
}
else
{
GPIOPinWrite(CLP_D2_PORT, CLP_D2_PIN, 0);
}
}
if(ui32LEDMask & CLP_D3)
{
if(ui32LEDValue & CLP_D3)
{
GPIOPinWrite(CLP_D3_PORT, CLP_D3_PIN, CLP_D3_PIN);
}
else
{
GPIOPinWrite(CLP_D3_PORT, CLP_D3_PIN, 0);
}
}
if(ui32LEDMask & CLP_D4)
{
if(ui32LEDValue & CLP_D4)
{
GPIOPinWrite(CLP_D4_PORT, CLP_D4_PIN, CLP_D4_PIN);
}
else
{
GPIOPinWrite(CLP_D4_PORT, CLP_D4_PIN, 0);
}
}
}
//*****************************************************************************
//
//! This function reads the state to the LED bank.
//!
//! \param pui32LEDValue is a pointer to where the LED value will be stored.
//!
//! This function reads the state of the CLP LEDs and stores that state
//! information into the variable pointed to by pui32LEDValue.
//!
//! \return None.
//
//*****************************************************************************
void LEDRead(uint32_t *pui32LEDValue)
{
*pui32LEDValue = 0;
//
// Read the pin state and set the variable bit if needed.
//
if(GPIOPinRead(CLP_D4_PORT, CLP_D4_PIN))
{
*pui32LEDValue |= CLP_D4;
}
//
// Read the pin state and set the variable bit if needed.
//
if(GPIOPinRead(CLP_D3_PORT, CLP_D3_PIN))
{
*pui32LEDValue |= CLP_D3;
}
//
// Read the pin state and set the variable bit if needed.
//
if(GPIOPinRead(CLP_D2_PORT, CLP_D2_PIN))
{
*pui32LEDValue |= CLP_D2;
}
//
// Read the pin state and set the variable bit if needed.
//
if(GPIOPinRead(CLP_D1_PORT, CLP_D1_PIN))
{
*pui32LEDValue |= CLP_D1;
}
}
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
|
