Getting Started with the KITFS26SKTEVM Evaluation Board

2.1 Board Features

• VBAT power supply connectors (Jack and Phoenix)
• LQFP48 burn in open top socket
• VPRE output output voltage from 3.2 V to 6.35 V, current capability up to 1.5 A
• VBOOST in independent mode or in front-end topology to support battery cranking profiles
• VCORE output voltage from 0.8 V to 3.35 V, current capability up to 1.65 A
• LDO1 and LDO2 from 3.3 V or 5.0 V, up to 400 mA
• VTRK1 and VTRK2, from 3.3 V or 5.0 V, up to 150 mA
• VREF 0.75 % accuracy regulator for external ADC reference
• FS0B, FS1b external safety pins
• USB to SPI protocol for easy connection to software GUI
• LEDs that indicate signal or regulator status
• Manual or Automated OTP fuse programming
• Advance system monitoring via AMUX or external ADC
• Analog variable resistor to test external VMON

2.2 Board Description

The KITFS26SKTEVM provides flexibility to play with all the features of the device and make measurements on the main part of the application. The KL25Z FRDM connected to the board, combined with the FS26 NXP GUI software allows to fully configure and control FS26 SBC. The LQFP48 Socket on board allows to test or to program different samples.

An FS26 SBC sample must be inserted in the socket to enable OTP programming, emulation or evaluation. The performance on this board is limited and KITFS26AEEVM must be used for further evaluation.

2.3 Board Components

Overview of the evaluation board

1. VBAT Phoenix connector
2. VBAT3 position switch
3. VBAT Jack connector
4. VDDIO selection
5. Regulators outputs
6. WAKE1 and WAKE2 inputs switches
7. LQFP48 socket
8. KL25Z FRDM headers (bottom)
9. VDEBUG pin source selection (switch or MCU)
10. VDEBUG pin voltage level switches
11. VDDIO USB voltage level selection
12. VMONEXT variable resistor
13. Signal connector
14. Program connector
15. Regulators output LED indicators
16. Program burning voltage LED indicator
17. Safety output LED indicators
18. Debug mode LED indicator

The programming/evaluation boards are always delivered with the GUI firmware already flashed. If the MCU firmware is already flashed, this section can be ignored. If it is specified that the firmware must be updated, or if it is malfunctioning, follow these instructions.

3.1 Flashing or Updating the GUI Firmware

The KITFS26SKTEVM is delivered with the GUI firmware flashed. If MCU firmware is flashed, ignore this section. If it is specified to update the firmware or it is malfunctioning, follow the instructions below.

3.2 Flashing FRDM Board Firmware from Windows 7/10

If BOOTLOADER is already loaded in the FRDM Board, steps 1 to 3 are not required. Start from step 4.

1. Disable the Storage Service and Windows Search: Run Services, double click, and stop them as shown below Steps 2 and 3 are not required if BOOTLOADER is already loaded in the FRDM board
2. Press the RST push-button and connect the USB cable into the SDA port on the FRDM board.
   A new “BOOTLOADER” device should appear on the left pane of the File explorer.
3. Drag and drop the file “MSD-DEBUG-FRDM-KL25Z_Pemicro_v118.SDA” to the BOOTLOADER drive.
   

   Note: Make sure to allow enough time for the firmware to be saved in the BOOTLOADER.

4. Disconnect and reconnect the USB cable into the SDA port.
   This time without pressing the RST push-button, FRDM_KL25Z device should appear on the left pane of the File explorer as pictured below.
5. Locate the file “nxp-gui-fw-frdmkl25z-usb_hid-fs2630_vX.Y.bin” from the package and drag and drop the file into the FRDM_KL25Z device.
   

   Note: Make sure to allow enough time for the firmware to be saved.

6. FRDM board Firmware is successfully loaded. Disconnect and reconnect the USB cable into the KL25Z USB port.

3.3 Installing GUI Software Package

To install the FS26 NXP GUI, download or obtain the NXP GUI package, unzip 1- NXP_GUI_Setup folder:

Then, double-click NXP_GUI_version-Setup.exe and follow the instructions.

To install the application on Windows PC, proceed with the following pop-up windows:

Figure 1. Application Setup

Figure 2.License Agreement

Figure 3.Select FS2630_GUI

Figure 4. Choose the folder to install

Select the following options before completing the installation of the setup:

• Run NXP_GUI
• Show Readme

Select Finish to complete the installation.

Figure 5. Run NXP_GUI

When the installation is finished, you can find the application by searching for NXPGUI in the windows search bar. Click to launch.

Figure 6. Typical initial configuration

To configure the hardware and workstation, complete the following procedure:

1. With SW1 in middle position, set DC power supply to 12 V and current limit to 1.0 A. Attach the DC power supply positive and negative output to KITFS26SKTEVM VBAT Phoenix connector (J20). Or connect 12 V power supply to VBAT Jack (J21)

4.1 VBAT Phoenix connector (J1)

4.2 VBAT Three Position Connector (SW1)

3. Connect the Windows PC USB port to the KL25Z USB side of the FRDM board included in the kit, using the provided USB 2.0 cable.
4. Turn on SW6 to apply V_DBG to the DEBUG pin or SW7 to apply V_OTP.
5. Turn on the power supply

6. Close SW1

   Note: At this step, the product is either in Debug mode, and all regulators are turned off, or in OTP emulation mode. In the latter, the user can then power up with a preloaded OTP configuration or manually configure the mirror registers before powering up (the power up is effective as soon as SW7 is turned off).