嵌入式任意波信號發(fā)生器的控制系統(tǒng)設(shè)計

為了實現(xiàn)任意波信號發(fā)生器的協(xié)調(diào)工作，提出了發(fā)生器控制系統(tǒng)的硬件和軟件的設(shè)計方案。硬件部分以HMS30C7202微處理器為核心，F(xiàn)LASH和SDRAM作為存儲設(shè)備，從矩陣鍵盤接受輸入，并在LCD上顯示相應(yīng)內(nèi)容。軟件分為底層驅(qū)動程序和上層控制程序兩部分設(shè)計，系統(tǒng)上電后首先能夠設(shè)置系統(tǒng)模式和時鐘、初始化存儲器。進入主流程后上層控制程序不斷查詢是否有鍵按下,若有鍵按下，則執(zhí)行相應(yīng)的任務(wù)，LCD顯示相應(yīng)內(nèi)容。
關(guān)鍵詞：信號； DDS；HMS30C7202； 控制； 設(shè)計
Abstract: In order to realize the harmonious work for Arbitrary Waveform Generator, the design blue print of? control system that have hardware and software were put forward. The microprocessor ARMHMS30C7202 is core, FLASH and SDRAM are storage, matrix keyboard is input and it is displayed on the LCD in hardware. There ware two part in software those are rock-bottom driving and topper control programmer, when the current is put on, the pattern and clock are intercalated at once. The bond isn’t pressed is inspected ceaselessly by the
topper control programmer when it has gone to the flow main programmer. If the key has done, the content is displayed on LCD.
Keywords: signal; DDS; HMS30C7202; control; design