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| Overview
The TWR-KL25Z48MTWR-KL25Z48M microcontroller module is designed to work either in standalone mode or as part of the Freescale Tower System, a modular development platform that enables rapid prototyping and tool re-use through reconfigurable hardware. The TWR-KL25Z48M is supported by a range of Freescale and third-party development softwares. Take your design to the next level and begin constructing your Tower System today.
The TWR-KL25Z48MTWR-KL25Z48M features two pushbutton switches connected to GPIO/interrupt signals, one pushbutton connected to the master reset signal, two capacitive touch pad electrodes, four user-controllable LEDs, and a potentiometer connected to an ADC input signal. Refer to Table 5 “I/O Connectors and Pin Usage Table” for information about which pins are connected to these features.
The TWR-KL25Z48MTWR-KL25Z48M Tower MCU Module features the MKL25Z128VLK4MKL25Z128VLK4 — a Kinetis microcontroller with USB 2.0 full-speed OTG controllers. It is intended for use in the Freescale Tower System but can operate stand-alone. An on-board debug circuit, openSDA, provides a JTAG interface and a power supply input through a single USB mini-AB connector, as well as a serial to USB, CDC class compliant UART interface.
The Kinetis MCUs start up from an internal digitally controlled oscillator (DCO). Software can enable the main external oscillator (EXTAL0/XTAL0) if desired. The external oscillator/resonator can range from 32.768 KHz up to a 32 MHz. An 8 MHz crystal is the default external source for the MCG oscillator inputs (XTAL/EXTAL). A 32.768 KHz crystal is connected to the RTC oscillator inputs by default.
The touch sensing input (TSI) module of the KL25Z128 MCU provides capacitive touch sensing detection with high sensitivity and enhanced robustness. Each TSI pin implements the capacitive measurement of an electrode. The TWR-KL25Z provides two methods for evaluating the TSI module. There are two electrodes on-board. Additionally, 12 TSI signals are connected to a Touch Tower Plug-in (TWRPI) socket (J2) that can accept Touch TWRPI daughter cards that may feature keypads, rotary dials, sliders, etc.
Key Applications: Low-power applications, Battery-operated applications, USB peripherals, Consumer applications | |||||||||||
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Development Tools
Software Development Tools:
| Tool Type | Supplier | MPN | Supported Family | Description |
|---|---|---|---|---|
| IDE | Freescale | CodeWarrior | All Freescale MCU's | Freescale's software and development solutions take you beyond the silicon, helping to bring your embedded applications to life. Learn More |
| IDE | ARM Keil | MDK ARM | ARM Cortex -M / Cortex-R4 / ARM7 / ARM9 | The MDK-ARM (Microcontroller Development Kit) is the complete software development environment for ARM7, ARM9, Cortex-M, and Cortex-R4 processor-based devices. Learn More |
| RTOS | Freescale | MQX | ColdFire / HC08 / HC12 / ARM / S08 / RS08 / PowerPC | The Freescale MQX Real-Time Operating System (RTOS) provides real-time performance within a small, configurable footprint. This RTOS is designed to allow you to configure and balance code size with performance requirements. Learn More |
| RTOS | Micrium | uC/OS III | ColdFire / HC08 / HC12 / ARM / S08 / RS08 / PowerPC | μC/OS-III is Micrium’s newest RTOS, designed for developers who need to save time on their current and next embedded sytem projects. Using a commercial real-time kernel such as μC/OS-III provides a solid foundation and framework to the design engineer dealing with the growing complexity of embedded designs. Learn More |
| RTOS | Segger | embOS | ColdFire / HC08 / HC12 / ARM / S08 / RS08 | SEGGER embOS (Real Time Operating System) follows strict, yet efficient coding and documentation standards. embOS is a priority-controlled real time operating system, designed to be used as foundation for the development of embedded real-time applications. Learn More |
| IDE | Embest | CoIDE | ARM Cortex-M | CooCox offer freely available powerful software development tool for ARM Cortex-M3 & Cortex-M0 based microcontrollers. Coocox Tools organizes and provides the knowledge required by developers. Learn More |
| RTOS | Embest | CoOS | ARM Cortex-M | CoOS is a free and open RTOS from CooCox, designed specifically for Cortex-M processor, supports preemptive priority and round-robin, Semaphore, Mutex, Flag, Mailbox and Queue for communication & synchronization, highly scalable, minimum system kernel is only 974Bytes, supports interrupt while task switching, supports stack overflow detection, supports the platforms of ICCARM, ARMCC, GCC. Learn More |
Hardware Development Tools:
| Tool Type | Supplier | MPN | Supported Family | Description |
|---|---|---|---|---|
| Debuggers, Emulators & JTAG Tools | Freescale | U-MULTILINKU-MULTILINK | HC08 / HCS12 / S08 / RS08 / Coldfire / Kinetis | P&E USB Multilink Universal debug and programming interface for HCS08, HC(S)12(X), ColdFire, Qorivva MPC55xx/56xx, and Kinetis |
| Debuggers, Emulators & JTAG Tools | ARM | ULINK2ULINK2 | ARM Cortex-M / ARM7 / ARM9 | USB DEBUG |
| Debuggers, Emulators & JTAG Tools | ARM | ULINKProULINKPro | ARM Cortex-M / ARM7 / ARM9 | High-Speed Debug and Trace Unit |
| Emulator | Segger | J-LinkJ-Link | ARM Cortex-M / Cortex-R4 / Cortex-A / ARM7 / ARM9 | JTAG/SWD Emulator with USB interface |
| Programmer | Segger | Flasher ARMFlasher ARM | ARM Cortex-M / Cortex-R4 / Cortex-A / ARM7 / ARM9 | Flash Programmer for ARM and Cortex cores |
| Debugger | Embest | ColinkExColinkEx | ARM Cortex-M | ARM Cortex-M MCU JTAG Hardware Debugging Probe which supports in CooCox software and Keil Realview MDK |
Technical Documents
Learning Center
Design Elements
| Type | Description |
|---|---|
| Schematics | Freescale: Schematic file for TWR-KL25Z48M Kinetis KL2 Tower System Module |
| Application Library | Freescale: Software Code for TWR-KL25Z48M Quick Start Package |
| Application Library | Freescale: Software Code for MQX Board Support Package Porting Guide on KEIL |
Video
| Video1 | Video2 | Video3 |
|---|---|---|
Kit Features
- Tower compatible microcontroller module
- MKL25Z128VLK4MKL25Z128VLK4 MCU (48 MHz, 128KB Flash, 16 KB RAM, Low power, 80LQFP package)
- Dual role USB interface with Micro-AB USB connector
- Touch Tower Plug-in Socket
- General purpose Tower Plug-in (TWRPI) socket
- On-board debug circuit MK20 openSDA serial debug interface with virtual serial port and mass storage device bootloader
- Three axis accelerometer (MMA8451QMMA8451Q)
- Four (4) user-controllable LEDs
- Two (2) capacitive touch pads
- Two (2) user pushbutton switches
- Infrared transmit and receive
- Potentiometer for ADC measurements
- General-purpose pin header to directly access MCU signals
- Tools
- Freescale CodeWarrior Development Studio for Microcontrollers V10.3 (CW-MCU10)
- IAR EWARM V6.40
- Processor Expert with MQX Lite integration available for CodeWarrior or a standalone for integrating generated code into other IDEs
Kit Contents
The Freescale TWR-KL25Z48MTWR-KL25Z48M Tower System Module supplied with below contents:
- TWR-KL25Z48MTWR-KL25Z48M 32-bit MCU module with MKL25Z128VLK4MKL25Z128VLK4 MCU (80LQFP)
- 3ft A to mini-B USB cable for debug interface and power
- 3ft A to micro-B USB cable for MKL25Z128VLK4 USB interface
- Micro-B to A adapter for MKL25Z128VLK4 USB host applications
- Quick Start Guide
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