MSP430FR4133_Temperature

A low level project for the MSP430FR4133 written in Rust.

Displays the temperature on the MSP430FR4133 LCD. Previous versions of this project did not really do anything, that is to say I ended up doing something else instead of finishing it..

It's now been brought up to date to use Rust 2018 edition and uses the newer msp430 & msp430-rt crates.

Uses the msp430fr4133 peripheral access crate which was generated by svd2rust & msp430_svd for device level access.

System interrupts are handled by msp430-rt and at the moment no other interrupts are implemented.

This project does not rely on any external hardware abstraction libraries. FYI: There is no HAL for msp430 (yet), however chances are the cortex-m HAL can be ported. 🙂

How to build

Install the latest msp430-gcc toolchain Texas Instruments: http://www.ti.com/tool/MSP430-GCC-OPENSOURCE

Linux:

wget http://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSPGCC/8_3_2_2/export/msp430-gcc-8.3.1.25_linux64.tar.bz2 -O /tmp/msp430-gcc.tar.bz2
tar -xvjf /tmp/msp430-gcc.tar.bz2
export PATH=$PATH:$PWD/msp430-gcc-8.3.1.25_linux64/bin

Windows:

Download & export msp43-gcc for Windows:

http://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSPGCC/8_3_2_2/export/msp430-gcc-8.3.1.25_win64.zip

Note: Make sure to update your environment PATH variable to include the bin path. Alternatively run the installer from: https://gnutoolchains.com/download/

Using cargo-xbuild

cargo install cargo-xbuild
rustup component add rust-src

Producing the elf file:

cargo xbuild --target msp430-none-elf

Once you've compiled you'll want to load the elf onto your msp430. I recommend using mspdebug: https://github.com/dlbeer/mspdebug mspdebug is also available on Linux in many of the built-in repositories.

Note: mspdebug does not work on WSL due to limitations with USB device access.

Loading the elf file onto your msp430:

• Use mspdebug tilib or mspdebug ezfet
• mspdebug load targetfile and read the on-screen instructions.

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Notes on functionality:

• Displays the temperature from ADC12 on the LCD.
• Ability to write numbers to the LCD.
• Ability to write strings to the LCD (currently scrolling is not supported).

Please keep in mind:

• This is not a complete project, it was used as a learning experience writing Rust code for the msp430.
• No interrupt handling aside from system hardware interrupts (which essentially are infinite loops).
• The LCD implementation could be much better.