Jan Matyáš
Brno, Southeast, Czechia
Summary
🤩
RockstarJan Matyáš is a versatile IT engineer from Brno with seven years' experience across Linux, embedded systems, and digital hardware design, combining hands-on C/C++ and Python development with RTL/FPGA work. He specializes in MCU and RISC-V platforms, realtime and IoT networking stacks, and low-level tooling—evidenced by contributions improving the JTAG VPI driver and GDB-remote handling in the widely used OpenOCD project. Comfortable at both user and programmer levels of Linux, he bridges software and hardware domains from schematic and PCB layout to RTOS application code. A quick learner with strong debugging instincts and C2-level English, he balances engineering rigor with a collaborative, hardworking approach. Outside work he’s an avid mountain hiker and cross-country skier, bringing persistence and attention to detail from the slopes back to the lab.
7 years of coding experience
Stackoverflow
1reputation
44reached
0answers
1question
Github Skills (12)
c1710
debugging10
ip10
embedded10
gdb10
jtag10
c1110
sys10
tcp10
networking9
network-protocol8
openocd8
Programming languages (7)
Github contributions (5)
openocd-org/openocd
May 2019 - Oct 2022
Official OpenOCD Read-Only Mirror (no pull requests)
Role in this project:
Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:25 commits in 3 years 6 months
Contributions summary:Jan primarily contributed to the OpenOCD project by enhancing and refining the JTAG Virtual Peripheral Interface (VPI) driver, focusing on improving its stability, functionality, and debug capabilities. Their work included fixing state transitions, ensuring consistent packet sizes and endianness, and adding features like low-level JTAG IO debugging. Additionally, they addressed issues related to the GDB server and target-specific operations. Their changes indicate expertise in debugging and improving the low-level interfaces in embedded systems.
openocd
espressif/openocd-esp32
May 2019 - Oct 2022
OpenOCD branch with ESP32 JTAG support
Role in this project:Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:8 commits in 3 years 6 months
Contributions summary:Jan primarily contributes to the JTAG VPI driver within the OpenOCD project. They fixed issues related to socket handling, ensured consistent packet sizes and endianness for network communication, and added functionality to stop the simulation on exit. Additionally, the user added events for stepping in the target system, which is crucial for specific processors. They also improved logging of GDB-remote packets and performed general cleanup and minor improvements throughout the jtag_vpi driver code.
esp32jtagopenocd
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