TWR-K21F120M

TWR-K21F120MA Quick Start Guide Low-Power 32-bit ARM® Cortex™-M4 MCUs with Floating Point Unit, USB Connectivity and Enhanced Security Tower System Development Board Platform Quick Start Guide Get to Know the TWR-K21F120MA JTAG VBAT Options Primary Connector JM60 BDM OSJTAG Bootloader Selection GeneralPurpose TWRPI Plug-In Power/OSJTAG Micro-USB Regulator Option Selector Potentiometer RESET LEDs K21 Micro-USB Accelerometer SW3 MK21FN1M0AVMC12 MCU Tamper Pins Secondary Connector USB Switch Figure 1: Front side of TWR-K21F120MA 2 SW2 freescale.com Battery Receptacle SD Card Receptacle TWR-K21F120MA Freescale Tower System The TWR-K21F120MA MCU module is designed to work either in stand-alone mode or as part of the Freescale Tower System, a modular development platform that enables rapid prototyping and tool re-use through reconfigurable hardware. Begin constructing your Tower System today by visiting freescale.com/Tower for additional Tower System MCU modules and compatible peripherals. 3 Quick Start Guide TWR-K21F120MA Features Step-by-Step Installation Instructions • MK21FN1M0AVMC12 MCU (120 MHz, 1 MB flash, 128 KB RAM, FPU, USB OTG, tamper detection, encryption, low power, 121 MBGA) In this quick start guide, you will learn how to set up the TWR-K21F120MA module and run the included demonstration software. For more detailed information, review the user manual at freescale.com/ TWR-K21F120M. • Dual-role USB interface with Micro-AB USB connector • On-board open source JTAG (OSJTAG) circuit with virtual serial port • General-purpose Tower plug-in (TWRPI) socket • Three-axis accelerometer (MMA8451Q) • Four user-controlled status LEDs • Push buttons for GPIO interrupts and MCU reset • Potentiometer, SD card socket and coin cell battery holder • Independent, battery operated power supply for real-time clock and tamper detection modules 4 1 Download Software and Tools Download installation software and documentation under “Jump Start Your Design” at freescale.com/ TWR-K21F120M. 2 Install the Software and Tools Install the P&E Micro Kinetis Tower toolkit. The toolkit includes the OSJTAG and USB to serial drivers. freescale.com Step-by-Step Installation Instructions 3 Configure the Hardware Install the included battery into the VBAT (RTC) battery holder. Then, connect one end of the USB cable to the PC and the other end to the Power/OSJTAG micro-B connector on the TWR-K21F120MA module. Allow the PC to automatically configure the USB drivers if needed. 4 5 Download the Freescale CodeWarrior IDE and MQX™ RTOS Download the Freescale CodeWarrior IDE and MQX RTOS by clicking the relevant links at freescale.com/CodeWarrior and freescale.com/MQX. Tilt the Board Tilt the board side to side to see the LEDs on D5, D6, D8 and D9 light up as it is tilted. While the board is held flat, press SW2 and SW3 to toggle LEDs D5 and D9, respectively. 5 Quick Start Guide TWR-K21F120MA Jumper Options The following is a list of all jumper options on the TWR-K21F120MA. The default installed jumper settings are indicated by white text within the gray boxes. Jumper Option JP1 Tamper Connections J6 JTAG Board Power Selection J7 VBAT Power Source J8 J9 J10 MCU Power Connection OSJTAG Bootloader Selection General Purpose TWRPI V_BRD Power Enable Setting 2-3 ON OFF 1-2 2-3 1-2 2-3 ON OFF Debugger mode ON Connect on-board 1.8 V or 3.3 V supply (V_BRD) to TWRPI 3 V power (GPT_VBRD) OFF Disconnect from-board 1.8 V or 3.3 V supply (V_BRD) to TWRPI 3 V power (GPT_VBRD) 1-2 J11 VREG IN Selector J12 Potentiometer Connection J13 GPIO RESET_OUT_B connection 5-6 6-8 6 Description JP1-1 through JP1-6 are connected to the MCU Tamper pins TAMPER0 through TAMPER5, respectively, for active tamper detection Connect OSJTAG 5 V output (P5V_TRG_USB) to JTAG port (supports powering board from JTAG pod supporting 5 V supply output) Disconnect OSJTAG 5 V output (P5V_TRG_USB) from JTAG port Connect VBAT to on-board 3.3 V or 1.8 V supply Connect VBAT to the higher voltage between MCU supply (MCU_ PWR) or coin cell supply (VBATD) Connect on-board 3.3 V or 1.8 V supply (V_BRD) to MCU VDD Connect K21 USB regulator output to MCU VDD OSJTAG bootloader mode (OSJTAG firmware reprogramming) ON OFF 1-2 2-3 OFF OSJTAG 5 V output (P5V_TRG_USB) connected to on-board regulator input (VREG_IN) VBUS signal on micro-USB connector J19 connects to K21_VREGIN to allow stand-alone USB operation VBUS signal from Tower elevator connector connects to K21_VREGIN to allow USB operation with complete Tower System Connect potentiometer to ADC0_SE12 Disconnect potentiometer from ADC0_SE12 Connect PTA14 to RESET_OUT_B signal Connect PTA17 to RESET_OUT_B signal Leave RESET_OUT_B signal disconnected freescale.com TWR-K21F120MA Jumper Options (continued) Jumper Option J15 LED Connections J16 SDHC Card J17 V_BRD Power Source (Board Power Selector) J18 Accelerometer IRQ Connection J21 USB ID Connection J22 USB Power Enable J23 USB OverCurrent Flag J24 USB Switch Setting 1-2 3-4 5-6 7-8 OFF OFF ON 1-2 3-5 5-7 1-2 3-4 OFF ON OFF ON OFF ON OFF 1-2 2-3 Description Connect PTD4 to green LED (D5) Connect PTD5 to yellow LED (D6) Connect PTD6 to red LED (D8) Connect PTD7 to blue LED (D9) Disconnect PTD[4:7] from associated LED 10K pulldown resistor is disconnected from CD/DATA3 line 10K pulldown resistor is connected to CD/DATA3 line to allow card detection Connect K21 USB regulator output (VOUT_3V3) to on-board supply (V_BRD) Connect 3.3 V on-board regulator output (P3V3) to on-board supply (V_BRD) Connect 1.8 V on-board regulator output (P1V8) to on-board supply (V_BRD) Connect PTB0 to INT1 pin of accelerometer Connect PTB1to INT2 pin of accelerometer Disconnect PTB0 and/or PTB1 from INT1 and/or INT2 of accelerometer Connect PTD7 to USB ID pin Disconnect PTD7 from USB ID pin Connect PTC9 to USB power enable on power switch MIC2026 Disconnect PTC9 from USB power enable on power switch MIC2026 Connect PTC8 to over-current flag on power switch MIC2026 Disconnect PTC8 from over-current flag on power switch MIC2026 USB micro J19 USB mini J14 on TWR-SER 7 Get Started Download installation software and documentation under “Jump Start Your Design” at freescale.com/TWR-K21F120M. Visit freescale.com/TWR-K21F120M, freescale.com/K20 or freescale.com/Kinetis for more information on the TWR-K21F120MA module. Support Visit freescale.com/support for a list of phone numbers within your region. Warranty Visit freescale.com/warranty for complete warranty information. For more information, visit freescale.com/Tower Join the online Tower community at towergeeks.org Freescale, the Freescale logo, CodeWarrior and Kinetis are trademarks of Freescale semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. Tower is a trademark of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © 2015 Freescale Semiconductor, Inc. Doc Number: TWRK21F120MAQSG REV 0 Agile Number: 926-28703 REV A