Category Archives: nRF52

“New OpenWRT Series” #1: Setting up OpenWRT (Chaos Calmer) for Arduino Yún

The latest OpenWRT release (Chaos Calmer) has already there for a long time. It ships with Linux kernel version 3.8.21 which supports 6LowPAN via Bluetooth Low Energy (BLE). Both of them features Open WRT routers as a very good solution for … Continue reading

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RT-Thread support for nRF52832

RT-Thread[1][2] is an open source real-time operating system for embedded devices. It is distributed under the GPLv2 licence. RT-Thread is developed by the RT-Thread Studio based in China, after five years’ fully concentrated development. It is aimed to change the … Continue reading

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DWT example with CMSIS for nRF52

The DWT is short for Data Watchpoint and Trace. The DWT unit performs the following debug functionality: It contains four comparators that you can configure as a hardware watchpoint, an ETM trigger, a PC sampler event trigger, or a data … Continue reading

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CMSIS RTX Blinky for nRF52

The CMSIS RTX implements the CMSIS-RTOS API, which is a generic RTOS interface for Cortex-M processor-based devices. The CMSIS-RTOS API provides a standardized interface for software components that require RTOS functionality. This RTX implementation gives therefore serious benefits to the … Continue reading

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nRF52 Systick Example

The foundational change of the latest nRF52832 chip is that it ships Cortex™-M4F core which support FPU and Systick timer. The later can provide heartbeat (tick interrupt) for a operating system. Today I will give a simple example of usage … Continue reading

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