The development of autonomous mobile communication system (AMCS) can reduce our dependence on technologies of foreign companies, and shorten the technology difference with the developed countries. Also, it can drive a series of related industries to progress and develop, which would greatly push forward the national economic development. In this context, based chi pink dazzle on the design of GSM/GPRS system at Datang Mobile Communication Terminal, this paper analysed and investigated the application of mobile terminal based on DTT6C01B platform.The paper chi hair straightener uses direct memory access (DMA) controller to adopt the direct access mode to control the input and output of UART. After configurated, DMA may not occupy any CPU resources. DMA controller cheap polo shirts will automatically move data from the specified device to the designated target, consequently release the CPU resources. So the situation of system halted arose from the frequent interruption will disappear. The quality of product is improved. Thereinto, DMA control the input of UART, which move data from Lacoste Polo Shirts UART to SRAM. The of module was designed as the mode of automatic overload, so that DMA Lacoste Polo Shirtscan repeatedly and continuously fill SRAM buffer without any CPU intervention, so as to liberate a large number of CPU resources. And through launching a mission, which can regular query whether the data buffer updated, send the updated datum of buffer to the corresponding module. This improves the system response speed. DMA control the output of UART, which move data from SRAM to UART. The module design adopted the mode of linked list because the sending buffer of UART is larger, which can not finish the datum move one time in most cases.
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