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This Traditional UART IP hard core is poor at flexibility and transportability while UART IP soft core is only based on poll and interrupt mode at present which consumes so much time of CPU that the performance of embedded system is reduced greatly. UART IP soft core based on DMA mode is proposed and well elaborated using the characteristic of DMA. The IP core is AVALON bus-compatible with the control...
We will explore how processing power of LEON3 processor can be enhanced by connecting small commercially available embedded FPGA (eFPGA) IP with the processor. We will analyze integration of eFPGA with LEON3 in two ways, inside the processor pipeline and as a co-processor. The enhanced processing power helps to reduce dynamic power consumption by Dynamic Frequency Scaling. More computational power...
This paper reports the design of two courses, "embedded hardware'' and "embedded software" offered in 2008 spring semester at Hiroshima University. These courses use 16-bit processor TINYCPU, cross assembler TINYASM, and cross compiler TINYC. They are designed very simple and compact: The total number of lines of the source code is only 427. Thus, students can understandthe entire design...
The main contribution of this paper is to present a simple, scalable, and portable tiny processing system which can be implemented in various FPGAs. Our processing system includes a 16-bit processor, a cross assembler, and a cross compiler. The 16-bit processor runs in 89 MHz on the Xilinx Spartan-3A family FPGAXC3S700A using 336 out of 5888 slices (5.7%)and in 76 MHz on the Altera Cyclon III family...
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