STM32 Nucleo

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This guide is intended for STM32 Nucleo F767ZI demo board, with Axel runtime.

Quickstart

USB connection

It is possible to connect the Nucleo board via USB-Serial connection; just refer to the following steps:

• Connect USB cable into CN1 connector.
• Open LogicLab.
• Create new Nucleo_F767ZI project.
• Select from LogicLab main menu bar On-line -> Set up communication.
• Select Modbus protocol, click on Activate button and then on Properties button, the settings dialog will appear; configure it as shown in the image below:

• Click Ok
• Now from the main menu bar, choose On-line -> Connect
• Now, in the right-lower corner of the application window, you should see a green rectangle with the word CONNECTED written inside.

Ethernet connection

It is possible to connect the Nucleo board via Ethernet; just refer to the following steps:

• Connect to Ethernet LAN plugging cable into CN14 connector.
• Open LogicLab
• Click Scan Network… button
• If Nucleo board is recognized, you should see this results table:

• By default, IP address is assigned by DHCP
• Click on the (+) button to automatically create a new nucleo project with the right communication settings

• From the main menu bar choose On-line -> Connect
• Now, in the right-lower corner of the application window, you should see a green rectangle with the word CONNECTED written inside.

Modify ethernet communication settings

If the IP address cannot be correctly assigned by DHCP, it is possible to manually configure a fixed IP address for the Nucleo board. See the following instruction:

• Connect USB cable into CN1 connector
• Open SoftTune
• Create new Nucleo_F767ZI project
• From the menu bar choose Target -> Communication settings
• Select Modbus protocol, then click on Activate and then click on Properties
• Configure the Modbus setting as shown in the following image (specify the USB virtual COM port as recognized by your system):

• Click OK
• Click on the connection Icon
• In the bottom-right corner of the application window, you should see a green rectangle with CONNECTED written inside
• Inside the parameters tree, select All Parameters -> Communication -> Configure TCP IP address, and specify the desired IP address (this should write the parameter inside the target)
• Save parameters and reboot (from the menu bar choose Target -> Save parameter, then Target -> Device reboot
• Connect LogicLab to target via Ethernet (see 1.2 Ethernet connection)

Peripheral connection

Peripheral	Connector	Description	Usage
Ethernet	CN14	RJ45 port	Modbus TCP slave
USB	CN1	USB-RS232 virtual port	Modbus RTU slave
GPIO - Out	CN12 – Pin 11 (PA5)	GPIO digital output pin	I/O
GPIO - Out	CN12 – Pin 13 (PA6)	GPIO digital output pin	I/O
GPIO - In	CN12 – Pin 23 (PA8)	GPIO digital input pin	I/O
GPIO - In	CN12 – Pin 21 (PA9)	GPIO digital input pin	I/O
CAN Rx	CN11 – Pin 57 (PD0)	CAN Rx signal	CAN Open master
CAN Tx	CN11 – Pin 55 (PD1)	CAN Tx signal	CAN Open master
USART1 Rx	CN12 – Pin 26 (PB15)	RS485 Rx signal	Modbus RTU master
USART1 Tx	CN12 – Pin 28 (PB14)	RS485 Tx signal	Modbus RTU master
USART1 DE	CN12 – Pin 12 (PA12)	RS485 Direction enable signal	Modbus RTU master

Firmware upgrade

This is the procedure to prepare Nucleo F767ZI demo board to run Axel PLC.

N.B: all data on the flash will be erased, that means license key will be erased too.
If the target has been already licensed please be sure to have the license key available. You can read it from target using SoftTune before proceeding with the target upgrade.

• Download “STM32 ST-LINK Utility” application from ST official website at the following link
  https://www.st.com/en/development-tools/stsw-link004.html#get-software
• Connect Nucleo F767ZI demo board to PC using USB (CN1 connector)
• Launch “STM32 ST-LINK Utility”
• Connect to target (Target -> Connect)
• Erase the flash (Target -> Erase chip)
• Prepare to download (Target -> Program & Verify)
• Choose the new firmware (Select the new firmware file from Axel Installation folder, for example "C:\Program Files (x86)\Axel PC Tools\Catalog\Nucleo_F767ZI_1p0\Firmware\NUCLEO_STM32F767ZI_RTOS_1p0.bin")

• Execute the download (Click Start)