Research On The Freescale Kinetis Microcontroller Based On Cortex-M4 Processer

Kinetis series of microcontroller, based on ARM Cortex-M4 processor, is released by Freescale in the second half of 2010, which is the first microcontroller using ARM Cortex-M4 processor. The Cortex-M4 processor is the latest embedded processor released by ARM in the second half of 2009 specifically developed to address digital signal control markets that demand an efficient, easy-to-use blend of control and signal processing capabilities.UART, SLCD, TSI, USB, Ethernet, CAN and other common modules are integrated in the Kinetis series microcontrollers, as long as high precision 16-bit ADC and 12-bit DAC. Kinetis Microcontroller is mainly for the market of industrial control, including motor control, communication, security and encryption. Becaues the Kinetis sample is not available until November 2010, so learning materials and example programs of Kinetis are very rare. Commissioned by Freescale Company, Freescale Embeded R&D Center of Soochow University takes an early research on the applicathin of this microcontroller.This paper take the K60N512 as an example, designs and implements a Kinetis development kit, including K60N512 core board, Kinetis expansion board and Kinetis debugger OSJTAG. Guided by the idea of embedded components, this paper implements K60N512 module driver, every driver has been sufficiently validated. This paper ports the realtime operating system FreeRTOS and analysis the port process in detail, providing an example and reference of realtime operating system in Kinetis. To speed up the K60N512 Ethernet programming, the open source embedded TCP/IP protocol stack LwIP is ported and the port process in given in detail.To study Ethernet communication with Kinetis and to verify Kineits software and hardware, this paper designs and implements a message modem based on embeded web server. The message modem uses FreeRTOS to schedule tasks and LwIP to implement internet communication and an embeded Web server is implemented as the human interface. The K60N512 core board, Kinetis expansion board, Kinetis debugger OSJTAG and drivers achieved by this paper have been planned to promote in the Freescale university tranning of Soochow in August 2011.