UM0564 STR9 dongle device firmware upgrade

About this manual

This user manual guides users through flashing DFU firmware into the STR9 microcontroller, creating a DFU image from an application, downloading the image, and running the application. It includes hardware and software requirements, step-by-step instructions using tools like IAR Embedded Workbench and CAPS, and a troubleshooting section for common issues.

The document assumes users have the STR9 dongle, IAR J-link or RLink-ST debugger, and Windows XP. It covers configuring the STR9 with CAPS, flashing firmware, generating DFU images, and verifying the upgrade process.

What's inside

• Requirements
• STR9 configuration - CAPS
• Flash DFU project into the STR9 - IAR Embedded Workbench®
• Create output for DFU image - IAR Embedded Workbench
• Create DFU image - DFU file manager
• Firmware upgrade - download your application image
• Run your downloaded application
• Troubleshooting
• Revision history

Frequently asked questions

What should I do if the downloaded application doesn’t run?

Check the 91x_init.s file for FMI configuration (it must be unused) and verify your system clock settings, as the clock is already running and register re-configuration must follow the correct order.

What hardware is required to upgrade the STR9 dongle firmware?

You need the STEVAL-IFD001V1 dongle, an IAR J-link debug probe, an RLink-ST programmer, and a USB cable.

Which operating system is required to run the DFU software?

The PC must be running Windows XP.

How do you start the application after downloading it to the dongle?

Plug the STR9 dongle into a supply, such as a USB port, and the application will start automatically.