Freescale Semiconductor TWR-K64F120M User manual

TWR-K64F120M
Quick Start Guide
Low-power MCUs at 120 MHz with FPU,
up to 1 MB Flash and up to
256 KB SRAM
Tower System
Development Board
Platform

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Quick Start Guide
Get to Know the K64F120M Board
Figure 1: Front side of TWR-K64F120M
Power/OpenSDA
Mini-USB
OpenSDA Debug
RESET
K64 Micro-USB
Potentiometer
Board power
indicator
Regulator
Option Selector
50 MHz OSC
Enable/Disable
VBAT
Options
K64 JTAG
SW1
1588
SW3
LEDs
General-Purpose
TWRPI Plug-In
Accelerometer

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TWR-K64F120M Freescale Tower System
Development Board Platform
The TWR-K64F120M board is designed to work either in standalone
mode or as part of the Freescale Tower System, a modular development
board platform that enables rapid prototyping and tool re-use through
reconfigurable hardware. Begin constructing your Tower System platform
today by visiting freescale.com/Tower for additional Tower System boards
and compatible peripherals.
SD Card
Receptacle
Battery
Receptacle
Potentiometer

Step-by-Step
Installation Instructions
• MK64FN1M0VMD12 (120 MHz, 1
MB Flash, 256 KB RAM, FPU, USB,
encryption, low power, 144 MAPBGA)
• Dual-role USB interface with Micro-AB
USB connector
• Onboard open-standard serial and
debug adaptor (OpenSDA)
• General-purpose Tower plug-in (TWRPI)
socket
• Three-axis accelerometer (MMA8451Q)
• Four user-controlled status LEDs
• Pushbuttons 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
In this Quick Start Guide, you will learn
how to set up the TWR-K64F120M board
and run the included demonstrated
software. For more detailed information,
review the user manual at freescale.com/
TWR-K64F120M.
2Install the
Software and Tools
Install the P&E Micro Kinetis Tower toolkit.
The toolkit includes the OpenSDA and USB
to serial drivers.
TWR-K64F120M
Features
Download Software
and Tools
Download installation
software and documentation
under “Jump Start
Your Design” at
freescale.com/TWR-K64F120M.
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3Configure 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/OpenSDA micro-B
connector on the TWR-K64F120M module.
Allow the PC to automatically configure the
USB drivers if needed.
4Tilt the
Board
Tilt the board side to side to see the LEDs
on D5, D6, D7 and D9 light up as it is
tilted. While the board is held flat, press
SW2 and SW3 to toggle LEDs D5 and D6,
respectively.
5Download 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.

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Quick Start Guide
TWR-K64F120M Jumper Options
The following is a list of all jumper options on the TWR-K64F120M. The default installed
jumper settings are indicated in the shaded boxes.
Jumper Option Setting Description
50 MHz Clock
OSC Power
J33 1–2 Enable V_BRD power supply to 50 MHz OSC
J32 1–2 Disable V_BRD power supply to 50 MHz OSC
JTAG Board
Power
Selection
J14 ON Connect 5 V output (P5V_TRG_USB) to JTAG port (supports
powering board from JTAG pod supporting 5 V supply output)
OFF Disconnect JTAG 5 V output (P5V_TRG_USB) from JTAG port
UART4_TX J36
ON Connect PTE24 as UART4_TX to Secondary TWR_ELEV
OFF Disconnect PTE24 as UART4_TX to Secondary TWR_ELEV
UART4_RX J27
ON Connect PTE25 as UART4_RX to Secondary TWR_ELEV
OFF Disconnect PTE25 as UART4_RX to Secondary TWR_ELEV
SDHC_WP /
UART4_RTS_B J34
ON Connect PTE27 as UART4_RTS_B to Secondary TWR_ELEV or as
SDHC_WP to SD card slot as write protect signal
OFF Disconnect PTE27 as UART4_RTS_B to Secondary TWR_ELEV or
as SDHC_WP to SD card slot as write protect signal
GPIO3_ELEV J35
ON Connect PTE28 as General-Purpose I/O to TWR_ELEV
OFF Disconnect PTE28 as General-Purpose I/O to TWR_ELEV
UART_CTS /
RTC_CLKOUT/ J31
ON Connect PTE26 as UART_CTS to Secondary TWR_ELEV or as
RTC_CLKOUT to primary TWR_ELEV or as Clock input for 1588
1588_CLKIN OFF Disconnect PTE26 as UART_CTS to Secondary TWR_ELEV or as
RTC_CLKOUT to primary TWR_ELEV or as Clock input for 1588
TAMPER0 J21 ON
OFF

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Jumper Option Setting Description
K64 VREG IN
Selector J19
1–2 VBUS Signal on micro USB connector J17 connects to K64_VREGIN
to allow standalone USB operation
2–3 VBUS signal from TWR ELEV connector connects to K64_VREGIN to
allow USB operation with complete Tower System
3.3 V Voltage
Regulator
Input Selector
J18
1–2 Output of USB power switch controlled by the VTRG_EN signal from
the K20 MCU. Provides input to 3.3 V regulator.
3–4 Output of USB power from primary elevator Pin A57 to 3.3 V
regulator
5–6 Output of USB power from K64 VREGIN to 3.3 V regulator
Board Power
Selector J29
1–2 Connect K20 USB regulator output (VOUT_3V3) to onboard supply
(V_BRD)
3–4 Connect K64 USB regulator output (VOUT_3V3) to onboard supply
(V_BRD)
5–6 Connect 3.3 V onboard regulator output (P3V3) to onboard supply
(V_BRD)
7–8 Connect 1.8 V onboard regulator output (P1V8) to onboard supply
(V_BRD)
MCU Power
Connection J28
ON Connect onboard 3.3 V or 1.8 V supply (V_BRD) to MCU VDD
OFF Disconnect onboard 3.3 V or 1.8 V supply (V_BRD) to MCU VDD
MCU Power
VDDA for
Current
Measurement
J22
ON Connect MCU_PWR (3.3 V or 1.8 V) to VDDA and VREFH
OFF Disconnect MCU_PWR (3.3 V or 1.8 V) to VDDA and VREFH
VBAT Power
Source J20
1–2 Connect VBAT to onboard 3.3 V or 1.8 V supply
2–3 Connect VBAT to the higher voltage between MCU supply (MCU_
PWR) or coin cell supply (VBATD)

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Quick Start Guide
TWR-K64F120M Jumper Options (cont.)
Jumper Option Setting Description
Accelerometer
IRQ Connection
J7 ON Connect PTA8 to INT2 pin of accelerometer
J8
ON Connect PTA6 to INT1 pin of accelerometer
OFF Disconnect PTA6 and/or PTA8 from INT1 and/or INT2 of
accelerometer
External
Pulldown on
SDHC D3
J13
ON External 10 K ohm Pulldown on SDHC_D3
OFF No pull down on SDHC_D3
LED
connections J30
1–2 Connect PTE6 to Yellow/Green LED (D5)
3–4 Connect PTE7 to Yellow LED (D6)
5–6 Connect PTE8 to Orange LED (D7)
7–8 Connect PTE9 to Blue LED (D8)
5 V power
selection J38
1–2 Connect 5 V power from OpenSDA (mini-USB) to power switch
MIC2026
2–3 Connect 5 V power from Elevator to power switch MIC2026
Micro USB
power enable J26
ON Connect PTC9 to USB power enable on power switch MIC2026
OFF Disconnect PTC9 from USB power enable on power switch
MIC2026
Micro USB
Overcurrent
Flag
J23
ON Connect PTC8 to overcurrent flag on power switch MIC2026
OFF Disconnect PTC8 from overcurrent flag on power switch
MIC2026
Micro USB ID
Selection J25 ON USB Host / Device ID selection is controlled by PTE12
OFF No ID selection USB Host/Device
Potentiometer
Connection J24
ON Connect potentiometer to ADC1_SE18
OFF Disconnect potentiometer from ADC1_SE18

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Jumper Option Setting Description
General-
Purpose TWRPI
V_BRD Power
Enable
J6
ON Connect onboard 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)
GPIO
RESET_OUT_B
Connection
J1
1–2 Connect PTB7 to RESET_OUT_B signal
2–3 RESET_OUT_B signal resets the target MCU
Target MCU
UART1_RX
Output Selection
J10
1–2 Connect MCU’s UART1_RX to OpenSDA virtual COM RX port
2–3 Connect MCU’s UART1_RX to primary Elevator (A41) UART0_RX
Target MCU
UART1_TX
Output Selection
J15
1–2 Connect MCU’s UART1_TX to OpenSDA virtual COM TX port
2–3 Connect MCU’s UART1_RX to primary Elevator (A42) UART0_RX
SWD_CLK_
TGTMCU
Output Selection
J39
ON Enable the SWD_CLK_TGTMCU connection between the
OpenSDA and target MCU
OFF Isolate the SWD_CLK_TGTMCU connection between the
OpenSDA and target MCU
Reset Selection
for SW2 Reset
Button
J16
1–2 Connect the reset button to target MCU before level shifter
2–3 Connect the reset button to target MCU without passing through
level shifter

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Quick Start Guide