====== ARM-CM4 XMC4 Infineon XMC4700 Relax Kit IAR EWARM ======

===== Supported firmware update interfaces =====

^ RS232         ^ CAN            ^ USB         ^ TCP/IP      ^ SD-card      ^ Modbus RTU   ^
| Yes           | Yes            | Yes         | Yes         | Yes          | No           |

===== Development Environment =====

{{:manual:demos:infineon_xmc700_relax_kit.jpg?100 |}}

This demo is targeted towards the [[https://www.infineon.com/cms/en/product/evaluation-boards/kit_xmc47_relax_v1/|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 [[http://www.segger.com/development-tools.html|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 [[http://www.iar.com/|IAR Embedded Workbench for ARM]] development environment. 

===== 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.

When using IAR EWARM, simply open the workspace from within the Embedded Workbench. The workspace file (xmc4700.eww) is located at: \Target\Demo\ARMCM4_XMC4_XMC4700_Relax_Kit_IAR\**Boot**\ide\. Once opened, select //Project->Rebuild All// 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, select //Project -> Download and Debug (Ctrl+D)// from the menu to flash the bootloader program. Once done, you can start the bootloader program by selecting //Debug -> Go (F5)// from the menu.

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_IAR\**Boot**\bin\**openblt_xmc4700.out**
  * \Target\Demo\ARMCM4_XMC4_XMC4700_Relax_Kit_IAR\**Boot**\bin\**openblt_xmc4700.srec**


===== Building the Demo Program =====

When using IAR EWARM, simply open the workspace from within the Embedded Workbench. The workspace file (xmc4700.eww) is located at: \Target\Demo\ARMCM4_XMC4_XMC4700_Relax_Kit_IAR\**Prog**\ide\. Once opened, select //Project->Rebuild All// from the menu to compile all the demo program sources and link the together into the final executable.

The output file is

  * \Target\Demo\ARMCM4_XMC4_XMC4700_Relax_Kit_IAR\**Prog**\bin\**demoprog_xmc4700.srec**


===== Firmware update procedure =====

To download the demo program \Target\Demo\ARMCM4_XMC4_XMC4700_Relax_Kit_IAR\**Prog**\bin\**demoprog_xmc4700.srec** using the bootloader, follow the instructions in the following links, depending on the communication interface you intend to use:

  * [[manual:rs232_demo|Firmware updates using the RS232 communication interface]]
  * [[manual:can_demo|Firmware updates using the CAN communication interface]]
  * [[manual:usb_demo|Firmware updates using the USB communication interface]]
  * [[manual:net_demo|Firmware updates using the TCP/IP communication interface]]
  * [[manual:sdcard_demo|Firmware updates from SD-card]]