WP409利用Xilinx FPGA打造出高端比特精度和周期精度浮點(diǎn)DSP算法實(shí)現(xiàn)方案：
High-Level Implementation of Bit- and Cycle-Accurate Floating-Point DSP Algorithms with Xilinx FPGAs
CodeWarrior Development Tool Suites are comprehensive integrated developmentenvironments (IDE) that provide a highly visual and automated framework toaccelerate the development of the most complex embedded applications. Acrossmost stages of the development Cycle, we offer tools to help configure, debug andoptimize your design built on Freescale MPUs, MCUs, DSPs and DSCs. These toolsuites provide solutions to get your design up and running fast.
The LPC4350/30/20/10 are ARM Cortex-M4 based microcontrollers for embeddedapplications. The ARM Cortex-M4 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.The LPC4350/30/20/10 operate at CPU frequencies of up to 150 MHz. The ARMCortex-M4 CPU incorporates a 3-stage pipeline, uses a Harvard architecture withseparate local instruction and data buses as well as a third bus for peripherals, andincludes an internal prefetch unit that supports speculative branching. The ARMCortex-M4 supports single-Cycle digital signal processing and SIMD instructions. Ahardware floating-point processor is integrated in the core.The LPC4350/30/20/10 include an ARM Cortex-M0 coprocessor, up to 264 kB of datamemory, advanced configurable peripherals such as the State Configurable Timer (SCT)and the Serial General Purpose I/O (SGPIO) interface, two High-speed USB controllers,Ethernet, LCD, an external memory controller, and multiple digital and analog peripherals
WP409利用Xilinx FPGA打造出高端比特精度和周期精度浮點(diǎn)DSP算法實(shí)現(xiàn)方案：
High-Level Implementation of Bit- and Cycle-Accurate Floating-Point DSP Algorithms with Xilinx FPGAs
Quality, object.oriented architecture is the product of careful study, decision making, and
experimentation. At a minimum, the object.oriented architecture process includes farming of
requirements, architecture mining, and hands.on experience. Ideally, object.oriented
architecture comprises a set of high.quality design decisions that provide benefits
throughout the life Cycle of the system.
This project is created using the Keil ARM CA Compiler.
The Logic Analyzer built into the simulator may be used to monitor and display any variable or peripheral I/O register. It is already configured to show the PWM output signal on PORT3.0 and PORT3.1
This ARM Example may be debugged using only the uVision Simulator and your PC--no additional hardware or evaluation boards are required. The Simulator provides Cycle-accurate simulation of all on-chip peripherals of the ADuC7000 device series.
You may create various input signals like digital pulses, sine waves, sawtooth waves, and square waves using signal functions which you write in C. Signal functions run in the background in the simulator within timing constraints you configure. In this example, several signal functions are defined in the included Startup_SIM.INI file.
he LPC932 can be used to create a Pulse Width Modulated PWM signal. That s an analog signal, with only 2 discrete levels, for example 0V and 5V and a constant period. The current value of this signal at a certain poiTnt of time is proportional to its Duty Cycle. That s the High Time during one period divided by the period. It can also be calculated as the average value during a particular period. That means after low pass filtering, (e.g. RC circuit) the signal becomes analog, with an actual value controlled by the microcontroller. The PWM functionality enables the LPC932 to control for example the speed of DC motors or the brightness of electric lighting.
Simple I2C controller
-- 1) No multimaster
-- 2) No slave mode
-- 3) No fifo s
--
-- notes:
-- Every command is acknowledged. Do not set a new command before previous is acknowledged.
-- Dout is available 1 clock Cycle later as cmd_ack
IDCT-M is a medium speed 1D IDCT core
-- it can accept a continous stream of 12-bit input words at a rate of
-- 1 bit/ck Cycle, operating at 50MHz speed, it can process MP@ML MPEG video
-- the core is 100％ synthesizable
