DocID027779 Rev 1

3/8

UM1889

SP1ML firmware upgrade

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SP1ML firmware upgrade

When receiving SP1ML or STEVAL-SP1ML samples, the user should ensure that they have

the latest version of the FW (available on request).

Hardware

•

STEVAL-SP1ML evaluation board

or

•

SP1ML module (wired with USB/UART converter)

Figure 2. STEVAL-SP1ML

Software

•

Download “CP210x USB to UART Bridge VCP Drivers” (STEVAL-SP1ML is using

CP2102 USB/UART converter, so driver must be installed)

•

Install the ST Flash loader demonstrator: www.st.com/stm32-flash-loader

•

Ensure that you have the latest SP1ML FW from ST

Documentation

•

Ensure that you have the latest version of the SP1ML datasheet (including AT

command set) and STEVAL-SP1ML data brief available on st.com

(www.st.com\subghzmodules).

Settings

•

In order to force boot mode, the boot0 pin must be set to “1”. On the STEVAL-SP1ML it

can be achieved through JP1 or by connecting PAD10 and PAD11 together.

Figure 3. STEVAL-SP1ML JP1 connector