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manual:demos:infineon_xmc4700_relax_kit_gcc

ARM-CM4 XMC4 Infineon XMC4700 Relax Kit GCC Dave 4

Supported firmware update interfaces

RS232 CAN USB TCP/IP SD-card
Yes Yes No Yes Yes

Development Environment

This demo is targeted towards the Infineon XMC4700 Relax Kit board, with 2048 kB internal Flash EEPROM and 352 kB internal RAM.

To program the bootloader into the internal flash on the XMC4700 microcontroller, the on-board Segger J-Link JTAG interface was used. However, this is not required if you have another means of programming the internal flash.

To compile the demo programs you can use the Dave (version 4) development environment for XMC microcontrollers.

Workspace creation in Dave

Two demo projects are included in the OpenBLT bootloader package. One for the bootloader itself and one for the demo user program. This user program is configured such that it can be programmed, into the internal flash memory of the microcontroller, during a firmware update with the bootloader.

The first step in getting the the bootloader up-and-running, is the creation of the Eclipse workspace in Dave. After starting Dave, you are prompted to open a workspace. It is easiest to create a new one in the following directory: .\Target\Demo\ARMCM4_XMC4_XMC4700_Relax_Kit_GCC\

To import the demo programs into the workspace, select File → Import from the program menu. Then select Infineon → DAVE Project. On the next screen you select the following directory as the root directory: .\Target\Demo\ARMCM4_XMC4_XMC4700_Relax_Kit_GCC\. Eclipse will automatically find the Boot and Prog projects and select them:

Click the Finish button to complete the project import operation.

Building and programming the Bootloader

Before the bootloader can be used, it needs to be built and programmed into the XMC4700's internal flash memory. The steps in this section only need to be done once.

Set the project as the active project in Eclipse. This is achieved by right-clicking the Boot project in the project navigator called C/C++ Projects. From the context menu, select Set Active Project. Next, select Project → Rebuild Active Project from the menu to compile all the bootloader sources and link them together into the final executable.

The bootloader program is now ready to be programmed into the internal flash memory of the XMC4700. Make sure the XMC4700 Relax Kit is connected to your PC via a USB cable. Next, right-click the Boot project in the project navigator and select Debug As → Dave C/C++ Application from the context menu to flash the bootloader program. This will launch the Debug perspective in Eclipse. Once done, you can start the bootloader program by clicking the green play button on the toolbar or by pressing F8 on the keyboard.

Alternatively, you can use your favorite programmer to flash the bootloader using one of the following files, depending on what file type your programmer supports:

  • \Target\Demo\ARMCM4_XMC4_XMC4700_Relax_Kit_GCC\Boot\Debug\openblt_xmc4700.elf
  • \Target\Demo\ARMCM4_XMC4_XMC4700_Relax_Kit_GCC\Boot\Debug\openblt_xmc4700.srec

Note that after closing the debug session in Eclipse, the on-board Segger J-Link interface halts the CPU. If you want to continue running the bootloader program, a reset of the microcontroller is needed. An easy method to achieve this is by disconnecting and then reconnecting the USB cable.

Building the Demo Program

Set the project as the active project in Eclipse. This is achieved by right-clicking the Prog project in the project navigator called C/C++ Projects. From the context menu, select Set Active Project. Next, select Project → Rebuild Active Project from the menu to compile all the user program sources and link them together into the final executable.

The output file is

  • \Target\Demo\ARMCM4_XMC4_XMC4700_Relax_Kit_GCC\Prog\Debug\demoprog_xmc4700.srec

Firmware update procedure

To download the demo program \Target\Demo\ARMCM4_XMC4_XMC4700_Relax_Kit_GCC\Prog\Debug\demoprog_xmc4700.srec using the bootloader, follow the instructions in the following links, depending on the communication interface you intend to use:

manual/demos/infineon_xmc4700_relax_kit_gcc.txt · Last modified: 2020/02/06 16:48 by voorburg