libre-embed

ARM Cortex-M core programming across M0 to M33: CMSIS, startup code, NVIC, SysTick, FPU, MPU, and sleep modes.

1 skill · 1 command · 1 agent

Bare-metal firmware without a HAL: register-level drivers, linker scripts, startup code, and minimal runtimes.

1 skill · 1 command · 1 agent

MCU bootloader architecture: flash layouts, image verification, signature checks, secure boot, and fail-safe recovery.

1 skill · 1 command · 1 agent

I2C, SPI, UART, CAN, and USB drivers with DMA strategy, error recovery, bit timing math, and MCU peripheral quirks.

1 skill · 1 command · 1 agent

On-target debugging for Cortex-M: SWD and JTAG probes, HardFault decoding, GDB, ITM and SWO trace, and DWT timing.

1 skill · 1 command · 1 agent

Embedded Linux on ARM SoCs: Yocto, Buildroot, device trees, kernel modules, cross-compilation, and U-Boot.

1 skill · 1 command · 1 agent

Firmware testing: Unity, CMock, and Ceedling unit tests, hardware mocks, QEMU, hardware-in-the-loop, and coverage.

1 skill · 1 command · 1 agent

Firmware over-the-air updates: dual-bank flash, MCUboot, ESP-IDF OTA, delta images, version checks, and automatic rollback.

1 skill · 1 command · 1 agent

MCU and FPGA integration: Verilog register interfaces, AXI-Lite and SPI links, timing constraints, and MCU drivers.

1 skill · 1 command · 1 agent

IoT connectivity: choosing between MQTT, CoAP, LwM2M, BLE, LoRaWAN, Thread, and Zigbee, then designing the protocol layer.

1 skill · 1 command · 1 agent

Deterministic firmware memory: static allocation, memory pools, FreeRTOS heaps, stack sizing, and MPU protection.

1 skill · 1 command · 1 agent

Low-power firmware: sleep modes, tickless idle, clock gating, wake sources, current measurement, and battery life budgets.

1 skill · 1 command · 1 agent

FreeRTOS and Zephyr firmware design: task graphs, IPC sizing, priority inversion, watchdogs, and stack sizing.

1 skill · 1 command · 1 agent

Safety-critical firmware: MISRA C, IEC 61508, ISO 26262, DO-178C, defensive coding, watchdogs, and static analysis.

1 skill · 1 command · 1 agent

Sensor integration: drivers from datasheets, calibration, digital filtering, Kalman filters, and IMU sensor fusion.

1 skill · 1 command · 1 agent

Optional safety hooks for firmware work: confirm before flash, erase, and secret-file operations, detect embedded projects at session start, and flag empty files after edits.

hooks