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FRDM-K64F Freedom Module User’s Guide

1. Introduction

The NXP Freedom development platform is a set of

software and hardware tools for evaluation and

development. It is ideal for rapid prototyping of

microcontroller-based applications. The NXP Freedom

K64 hardware, FRDM-K64F, is a simple, yet

sophisticated design featuring a Kinetis K series

microcontroller, built on the ARM

Cortex

-M4 core.

FRDM-K64F can be used to evaluate the K64, K63, and

K24 Kinetis K series devices. It features the

MK64FN1M0VLL12 MCU, which boast the maximum

operation frequency of 120 MHz, 1 MB of flash, 256

KB RAM, a full-speed USB controller, Ethernet

controller, secure digital host controller, and analog and

digital peripherals. The FRDM-K64F hardware is form-

factor compatible with the Arduino

R3 pin layout,

providing a broad range of expansion board options.

The onboard interface includes a six-axis digital

accelerometer & magnetometer, RGB LED, SDHC,

add-on Bluetooth module, add-on RF module, and

Ethernet.

The FRDM-K64F platform features OpenSDAv2, the

NXP open-source hardware embedded serial and debug

adapter running an open-source bootloader. This circuit

offers several options for serial communication, flash

programming, and run-control debugging. OpenSDAv2

is an mbed™ HDK-compatible debug interface

preloaded with the open-source CMSIS-DAP Interface

firmware (mbed interface) for rapid prototyping and

product development, with a focus on connected

Internet of Things devices.

NXP Semiconductors

Document Number: FRDMK64FUG

User's Guide

Rev. 1

08/2016

Contents

1. Introduction ........................................................................ 1

2. FRDM-K64F Hardware Overview ..................................... 2

3. FRDM-K64F Hardware Description .................................. 4

3.1. Power supply .......................................................... 4

3.2. Serial and Debug Adapter version 2 (OpenSDAv2) 6

4. Microcontroller .................................................................. 7

5. Clocking ............................................................................. 9

6. USB ................................................................................. 10

7. Secure Digital Card .......................................................... 11

8. Ethernet ............................................................................ 12

9. Accelerometer and Magnetometer .................................... 13

10. RGB LED ........................................................................ 13

11. Serial Port ........................................................................ 14

12. Reset ................................................................................ 14

13. Push Button Switches....................................................... 15

14. Debug ............................................................................... 15

15. Add-on modules ............................................................... 15

15.1. RF module ............................................................ 15

15.2. Bluetooth module .................................................. 16

16. Input/output connectors .................................................... 16

17. Arduino Compatibility ..................................................... 18

18. References ........................................................................ 18

19. Revision History .............................................................. 18

Summary of content (20 pages)

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NXP Semiconductors User's Guide Document Number: FRDMK64FUG Rev. 1, 08/2016 FRDM-K64F Freedom Module User’s Guide 1. Introduction The NXP Freedom development platform is a set of software and hardware tools for evaluation and development. It is ideal for rapid prototyping of microcontroller-based applications. The NXP Freedom K64 hardware, FRDM-K64F, is a simple, yet sophisticated design featuring a Kinetis K series microcontroller, built on the ARM® Cortex®-M4 core.
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FRDM-K64F Hardware Overview 2.
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FRDM-K64F Hardware Overview Figure 1. FRDM-K64F block diagram FRDM-K64F Freedom Module User’s Guide, User's Guide, Rev.
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FRDM-K64F Hardware Description Figure 2. FRDM-K64F main components placement 3. FRDM-K64F Hardware Description 3.1. Power supply There are multiple power supply options on the FRDM-K64F board. It can be powered from either of the USB connectors, the VIN pin on the I/O header, DC Jack (not populated), or an offboard 1.71–3.6 V supply from the 3.3 V pin on the I/O header. The USB, DC jack, and VIN supplies are regulated onboard using a 3.3 V linear regulator to produce the main power supply.
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FRDM-K64F Hardware Description Table 1. Supply source OpenSDAv2 USB K64 USB VIN Pin 3.3V Header (J20) DC Jack (Not Populated) FRDM-K64F power requirements Valid range 5V 5V 5-9 V 1.71-3.6 V 5-9 V OpenSDAv2 operational? Yes No No No No Regulated onboard? Yes Yes Yes No Yes NOTE The OpenSDAv2 circuit is only operational when a USB cable is connected and supplying power to OpenSDAv2 USB. However, the protection circuitry is in place to enable multiple sources to be powered at once. Figure 3.
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FRDM-K64F Hardware Description 3.2. Serial and Debug Adapter version 2 (OpenSDAv2) OpenSDAv2 is a serial and debug adapter circuit which includes an open-source hardware design, an open-source bootloader, and debug interface software. It bridges serial and debug communications between a USB host and an embedded target processor as shown in Figure 4. The hardware circuit is based on an NXP Kinetis K20 family microcontroller (MCU) with 128 KB of embedded flash and an integrated USB controller.
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Microcontroller Figure 5. SWD debug connector J9 is populated by default. A mating cable, such as a Samtec FFSD IDC cable, can then be used to connect from the OpenSDAv2 of the FRDM-K64F to an offboard SWD connector. Virtual serial port A serial port connection is available between the OpenSDAv2 MCU and pins PTB16 and PTB17 of the K64. 4. Microcontroller The FRDM-K64F features the MK64FN1M0VLL12 MCU. This 120 MHz microcontroller is part of the Kinetis K6x family and is implemented in a 100 LQFP package.
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Microcontroller Table 3.
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Clocking Table 3. Features of MK64FN1M0VLL12 Feature Description • Reliability, safety and security Hardware encryption coprocessor for secure data transfer and storage. Faster than software implementations and with minimal CPU loading.
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USB Figure 7. MCU receives RMII clock from Micrel Ethernet PHY By default, the 32.768 KHz crystal is connected to the RTC oscillator inputs. Figure 8. 32.768 KHz crystal for RTC 6. USB The MK64FN1M0VLL12 MCU features a full-speed/low-speed USB module with on-thego/host/device capability and built-in transceiver. The FRDM-K64F board routes the USB D+ and D signals from the MK64FN1M0VLL12 MCU directly to the onboard micro USB connector (J22). Figure 9.
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Secure Digital Card When the FRDM-K64F board is operating in USB host mode, J21 must be shunt to supply 5 V power from VBUS (J22). The source of 5 V power can be OpenSDAv2 USB port (J26), pin 10 of J3 I/O header, and P5-9V_VIN DC-DC converter of J27. Figure 10. K64 USB power input for host mode 7. Secure Digital Card A micro Secure Digital (SD) card slot is available on the FRDM-K64F connected to the SD Host Controller (SDHC) signals of the MCU. This slot will accept micro format SD memory cards.
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Ethernet Table 4. Micro SD card socket connection Pin Function TWR-K64120M connection 4 VDD 3.
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RGB LED 9. Accelerometer and Magnetometer An NXP FXOS8700CQ low-power, six-axis Xtrinsic sensor is interfaced through an I2C bus and two GPIO signals, as shown in Table 5. By default, the I2C address is 0x1D (SA0 pullup and SA1 pulldown). Table 5. Accelerometer and magnetometer signals connection FXOS8700CQ SCL SDA INT1 INT2 K64 PTE24/UART4_TX/I2C0_SCL/EW M_OUT_b PTE25/UART4_RX/I2C0_SDA/EW M_IN PTC6/SPI0_SOUT/PDB0_EXTRG/I2S0_RX_BCLK/FB_AD9/I2S0_MCLK/LLWU_P10 PTC13/UART4_CTS_b/FB_AD26 Figure 13.
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Reset Table 6. LED signal connections LED RED BLUE GREEN K64 PTB22/SPI2_SOUT/FB_AD29/CMP2_OUT PTB21/SPI2_SCK/FB_AD30/CMP1_OUT PTE26/ENET_1588_CLKIN/UART4_CTS_b/RTC_CLKOUT/USB0_CLKIN Figure 14. Tricolor LED 11. Serial Port The primary serial port interface signals are PTB16 UART1_RX and PTB17 UART1_TX. These signals are connected to the OpenSDAv2 circuit. 12. Reset The RESET signal on the K20 is connected externally to a pushbutton, named SW1, and also to the OpenSDAv2 circuit.
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Add-on modules 13. Push Button Switches Two push buttons, SW2 and SW3, are available on FRDM-K64F board, where SW2 is connected to PTC6 and SW3 is connected to PTA4. Besides the general purpose input/output functions, SW2 and SW3 can be low-power wake up signal. Also, only SW3 can be a non-maskable interrupt. Table 7. Push button GPIO function Switch GPIO Function SW2 SW3 PTC6/SPI0_SOUT/PD0_EXTRG/I2S0_RX_BCLK/FB_AD9/I2S0_MCLK/LLWU_P10 PTA4/FTM0_CH1/NMI_b/LLWU_P3 14.
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Input/output connectors 15.2. Bluetooth module The Add-on Bluetooth interface on FRDM-K64F board is using UART to interface with JY-MCU BT board V1.05 BT. Alternatively any serial (SCI) module can be used with this connector. Consider that the signals are not conforming to the RS-232 logic levels, and are 0–3.3 V only. A level shifter, like Maxim DS3232, should be used with RS-232 devices through proper RS-232 logic levels. Figure 17. Add-on Bluetooth module 16.
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Input/output connectors Figure 18. FRDM-K64F pinout FRDM-K64F Freedom Module User’s Guide, User's Guide, Rev.
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Revision History 17. Arduino Compatibility The I/O headers on the FRDM-K64F board are arranged to enable compatibility with peripheral boards (known as shields) that connect to Arduino and Arduino-compatible microcontroller boards. The outer rows of pins (even numbered pins) on the headers, share the same mechanical spacing and placement with the I/O headers on the Arduino Revision 3 (R3) standard. 18. References The following references are available on nxp.
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How to Reach Us: Home Page: nxp.com Web Support: nxp.com/support Information in this document is provided solely to enable system and software implementers to use NXP products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits based on the information in this document. NXP reserves the right to make changes without further notice to any products herein.