PR19_01_XMC Infineon XMC4800 development environment with Docker containers.

• TODO: Add lizard static analysis
• TODO: https://interrupt.memfault.com/blog/boostrapping-libc-with-newlib
• TODO: https://interrupt.memfault.com/blog/automate-debugging-with-gdb-python-api

PR19_02_Sensors Air quality PM sensor measurements and data visualization.

• TODO: https://www.freecodecamp.org/news/how-to-monitor-your-air-quality-with-this-diy-setup-3399793137c3/
• TODO: https://seetheair.wordpress.com/2020/02/18/low-cost-portable-monitors-vs-reference-monitors-part1/
• Sensirion SPS30 (https://www.digikey.de/product-detail/en/sensirion-ag/SEK-SPS30/1649-1107-ND/9598991)
• Renesas ZMOD4410
• http://www.ica.miteco.es/
• see sensors
• see air monitoring system components

PR19_03_Yocto Yocto environment for STM32P1 board.

• TODO: real-time
• TODO: https://onlinelibrary.wiley.com/doi/full/10.1002/eng2.12114

PR20_01_STM32 STM32 development environment with libopencm3.

• TODO: Consolidate makefiles (use XMC4800 makefile, http://reecestevens.me/blog/2016/07/08/embedded-programming-without-ide/). Add also improvements from https://tty.uchuujin.de/2016/02/stm32-from-scratch-makefile/.
• TODO: Measure improvements by using SRAM for code, as well as using ITCM memory (https://rhye.org/post/stm32-with-opencm3-4-memory-sections/).
• TODO: STM32MP1 environment, follow https://bootlin.com/blog/building-a-linux-system-for-the-stm32mp1-basic-system/

PR20_02_RTEMS Develop a simple application on an ARM platform (SPI sensor throughput, CPU load, GPIO interrupt latency, interrupt latency with user thread processing, PPS jitter).

• MCU execution time
• pulse measurement
• TODO: Run RTEMS examples in Nucleo hardware
• TODO: Run RTEMS tests in Nucleo hardware
• RTEMS BSP for TMS570LC4357
• Run Nucleo examples from SRAM

1. GPIO toggling on bare-metal. Compare performance of different boards, flash/RAM/ITCM, etc.
2. Interrupt latency (GPIO input/output) on bare-metal. Compare performance of different boards, flash/RAM/ITCM, etc.
3. GPIO toggling on RTEMS using a single uninterrupted task. Compare performance of different boards. Useful to make sure the systems and toolchains are working as expected. Running from flash/RAM/ITCM.
4. RTEMS interrupt latency and jitter at different CPU loads (GPIO input/output). Compare performance of different boards.
5. RTEMS scheduling latency and jitter using mutex at different CPU loads (measured using two GPIO outputs). Compare performance of different boards.
6. RTEMS periodic timer jitter at different CPU loads (measured using one GPIO output). Compare performance of different boards.
7. RTEMS contribution: CPU load
8. RTEMS contribution: task priority assignment with ML

PRXX_XX_Micropython

• TODO: https://neil.computer/notes/how-to-compile-and-flash-micropython-firmware-on-stm32f7/

EtherCAT

IMU helicopter control

PTP

linuxptp

ptp4l -i eth0 -m
pmc -u -b 0 'GET CURRENT_DATA_SET'
pmc -u -b 0 'GET TIME_STATUS_NP'
phc2sys -s eth0 -w

nohz=off

Statistics

Linux PPS support

GPS NTP timestamps

High resolution timers

Power management

BBB

i.MX6

MSP430

serial

Vehicle counting

Other useful hardware

Digital filters

Implementing FIR filters

Implementing EMA filters

Implementing IIR filters

Unit testing