====== ARM-CM4 STM32 Olimexino-STM32F3 Keil MDK ======

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

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

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

{{:manual:demos:olimexino_stm32f3.jpg?200 |}}

This demo is targeted towards the [[https://www.olimex.com/Products/Duino/STM32/OLIMEXINO-STM32F3/open-source-hardware|Olimexino-STM32F3]] board, with 256 kB internal Flash EEPROM and 40 kB internal RAM.

To program the bootloader into the internal flash on the STM32F303 microcontroller, the [[http://www.st.com/en/development-tools/st-link-v2.html|ST-LINK/V2]] debugger interface was used. However, this is not required if you have another means of programming the internal flash. To connect the 20-pin cable of the ST-LINK/V2 to the 10-pin SWD connector on the board, the [[https://www.olimex.com/Products/ARM/JTAG/ARM-JTAG-20-10/|ARM-JTAG-20-10 adapter]] was used. For the RS232 communication, the [[https://www.olimex.com/Products/Modules/Interface/MOD-USB-RS232/open-source-hardware|MOD-USB-RS232]] was attached.

To compile the demo programs you can use the [[http://www.keil.com/|Keil MDK]] development environment. 

===== Building and programming the Bootloader =====

Before the bootloader can be used, it needs to be built and programmed into the STM32F303's internal flash memory. The steps in this section only need to be done once.

When using Keil MDK, simply open the project from within uVision. The project file (stm32f303.uvprojx) is located at: \Target\Demo\ARMCM4_STM32F3_Olimexino_STM32F3_Keil\**Boot**\ide\. Once opened, select Project->Rebuild all target files from the menu to compile all the bootloader sources and link the together into the final executable.

The bootloader program is now ready to be programmed into the internal flash memory of the STM32F303. Using your favorite programmer, flash the bootloader using one of the following files, depending on what file type your programmer supports:

  * \Target\Demo\ARMCM4_STM32F3_Olimexino_STM32F3_Keil\**Boot**\bin\**openblt_olimexino_stm32f3.axf**
  * \Target\Demo\ARMCM4_STM32F3_Olimexino_STM32F3_Keil\**Boot**\bin\**openblt_olimexino_stm32f3.srec**

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

When using Keil MDK, simply open the project from within uVision. The project file (stm32f303.uvprojx) is located at: \Target\Demo\ARMCM4_STM32F3_Olimexino_STM32F3_Keil\**Prog**\ide\. Once opened, select Project->Rebuild all target files 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_STM32F3_Olimexino_STM32F3_Keil\**Prog**\bin\**demoprog_olimexino_stm32f3.srec**

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

To download the demo program \Target\Demo\ARMCM4_STM32F3_Olimexino_STM32F3_Keil\**Prog**\bin\**demoprog_olimexino_stm32f3.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:sdcard_demo|Firmware updates from SD-card]]