Texas Instruments Tiva TM4C123GH6PM User Manual

Watchdog Timer
void ROM_WatchdogUnlock (uint32_t ui32Base)
uint32_t ROM_WatchdogValueGet (uint32_t ui32Base)
25.2.1 Function Documentation
25.2.1.1 ROM_WatchdogEnable
Enables the watchdog timer.
Prototype:
void
ROM_WatchdogEnable(uint32_t ui32Base)
ROM Location:
ROM_APITABLE is an array of pointers located at 0x0100.0010.
ROM_WATCHDOGTABLE is an array of pointers located at ROM_APITABLE[12].
ROM_WatchdogEnable is a function pointer located at ROM_WATCHDOGTABLE[2].
Parameters:
ui32Base is the base address of the watchdog timer module.
Description:
This will enable the watchdog timer counter and interrupt.
Note:
This function will have no effect if the watchdog timer has been locked.
See also:
ROM_WatchdogLock(), ROM_WatchdogUnlock()
Returns:
None.
25.2.1.2 ROM_WatchdogIntClear
Clears the watchdog timer interrupt.
Prototype:
void
ROM_WatchdogIntClear(uint32_t ui32Base)
ROM Location:
ROM_APITABLE is an array of pointers located at 0x0100.0010.
ROM_WATCHDOGTABLE is an array of pointers located at ROM_APITABLE[12].
ROM_WatchdogIntClear is a function pointer located at ROM_WATCHDOGTABLE[0].
Parameters:
ui32Base is the base address of the watchdog timer module.
Description:
The watchdog timer interrupt source is cleared, so that it no longer asserts.
342 April 8, 2013

Texas Instruments Tiva TM4C123GH6PM Specifications

General

Core	ARM Cortex-M4F
Clock Speed	80 MHz
Flash Memory	256 KB
SRAM	32 KB
GPIO Pins	43
UART	8
I2C	2
SPI/SSI	4
USB	USB 2.0
Timers	6
Communication Interfaces	UART, I2C, SPI, USB
Operating Temperature	-40°C to 85°C
Package	LQFP64

Summary

Boot Loader

Introduction

Explains the ROM-based boot loader and its interfaces for flash updates.

Serial Interfaces

Details the UART, SSI, and I2C interfaces used by the boot loader.

USB Interface

Describes the USB boot loader functionality using the DFU protocol.

Controller Area Network (CAN)

Flash

GPIO

Hibernation Module

Inter-Integrated Circuit (I2C)

Interrupt Controller (NVIC)

Memory Protection Unit (MPU)

Pulse Width Modulator (PWM)

Synchronous Serial Interface (SSI)

System Control

Timer

UART

uDMA Controller

USB Controller

Using USB with the uDMA Controller

Watchdog Timer

Introduction

Functions

Lists and describes API functions for watchdog timer configuration, interrupts, and lock mechanism.