LM4F232 - USB+CAN Evaluation Kits

The Texas Instruments' Stellaris LM4F232 USB+CAN Evaluation Kit is a compact and versatile evaluation platform for the Stellaris LM4F232 ARM® Cortex™-M4F-based microcontroller. The evaluation kit design highlights the LM4F232 microcontroller’s integrated USB 2.0 On-the-Go/Host/Device interface, CAN, analog, and low-power capabilities.

The evaluation kit features a Stellaris microcontroller in a 144-LQFP package, a color OLED display, USB OTG connector, a microSD card slot, a coin cell battery for use with the Stellaris low-power Hibernate mode, a temperature sensor, a three-axis accelerometer for motion detection, and easy access through holes to all of the available device signals.

The kit also includes extensive source code examples, allowing you to start building C code applications quickly.

LM4F232 Features

ARM Cortex-M4F processor core
– 80-MHz operation; 100 DMIPS performance
– ARM Cortex SysTick timer
– Nested Vectored Interrupt Controller (NVIC)
– Wake-Up Interrupt Controller (WIC) with clock gating
– Embedded Trace Macro and Trace Port
– IEEE754-compliant single-precision Floating-Point Unit (FPU)
On-Chip memory
– 256 KB single-cycle Flash memory up to 40 MHz; a prefetch buffer improves performance above 40 MHz
– 32 KB single-cycle SRAM
– Internal ROM loaded with StellarisWare® software:
• Stellaris peripheral driver library
• Stellaris boot loader
• Advanced Encryption Standard (AES) cryptography tables
• Cyclic Redundancy Check (CRC) error detection functionality
– 2 KB EEPROM
Advanced serial integration
– Two CAN 2.0 A/B controllers
– USB 2.0 OTG/Host/Device
– Eight UARTs with IrDA, 9-bit and ISO 7816 support (one UART with modem flow control and status)
– Six I²C modules
– Four Synchronous Serial Interface modules (SSI)
System integration
– Direct Memory Access Controller (DMA)
– System control and clocks including on-chip precision 16-MHz oscillator
– Six 32-bit timers (up to twelve 16-bit)
– Six wide 64-bit timers (up to twelve 32-bit)
– Twelve 16/32-bit Capture Compare PWM (CCP) pins
– Twelve 32/64-bit Capture Compare PWM (CCP) pins
– Lower-power battery-backed Hibernation module
– Real-Time Clock in hibernation module
– Two Watchdog timers
– One timer runs off the main oscillator
– One timer runs off the precision internal oscillator
– Up to 105 GPIOs, depending on configuration
• Highly flexible pin muxing allows use as GPIO or one of several peripheral functions
• Independently configurable to 2, 4 or 8 mA drive capability
• Up to 4 GPIOs can have 18 mA drive capability
Advanced motion control
– Two PWM modules, with a total of 16 advanced PWM outputs for motion and energy applications
– Eight fault inputs to promote low-latency shutdown
– Two Quadrature Encoder Inputs (QEI)
Analog
– Two 12-bit Analog-to-Digital Converters (ADC) with 24 analog input channels and a sample rate of one million samples/second
– Three analog comparators
– 16 digital comparators
– On-chip voltage regulator
JTAG and ARM Serial Wire Debug (SWD)

LM4F232 Kit Content

Uses Stellaris LM4F232H5QD with 256KB internal Flash and 144-LQFP with excellent prototyping capability
96×64 color OLED display providing useful output and interface options
USB Micro-AB for prototyping USB application
microSD card slot for data storage
5-mm screw terminals for attaching external sensors and other analog inputs
Precision 3.0-V reference for accurate analog-to-digital conversion
Temperature sensor for temperature monitoring
3-axis accelerometer for position sensing
All I/O brought out to headers for easy prototyping
Five user/navigation buttons (including select/wake) for user input
One user LED
10-pin JTAG header providing standard debug interface

LM4F232 Overview