單片機(jī)畢業(yè)設(shè)計(jì)外文翻譯--語音電子密碼鎖的設(shè)計(jì)-單片機(jī)-在線瀏覽
2025-03-24 07:59本頁(yè)面
【正文】 to 5 mA, do not have to drive circuit to reach normal brightness. In order to meet the reliability of systems design, driven by a transistor circuit. The whole process showed that the use of dynamic, that is, six monitors each cycle, each sustained lms or 10 ms cycle again, can also be appropriate to make changes, but the refresh rate not less than 30 per second, so that temporary stay because of the visual phenomenon , Is six Qiduan see the LED display at the same time show. Enter key part of a total of the number keys, passwords, keys set, the key shown password, to confirm removal of keys and passwords, and other key 16 keys, enter your password and for the realization of function keys. This design uses a wakeup function keys of the IO low eight IOA0 ~ IOA7 to 4 4 as the control input of the keyboard, which can be rational use of hardware resources and programming flexibility. Recognition keyboard keys are pressed whether the method is: Let all out lines are low, check the traffic on whether there is a highlevel, if there is a statement that a key is pressed, if not, then no keys are pressed (Actual programming keys should be taken into account the impact of jitter, usually always use the software delay processing methods Consumers buffeting). Identify specific keys used scanning method: homebyzero level out and check the level of the carriageway of the changes, if a line from the low level into a high, this trip can be sure this column crosspoint Button is pressed. SPCEO61A FLASH memory chip of only 32 K, large number of players in the voice of resources needs of expanding memory. The design Sunplus Technology, Inc., SPR4096 as a memory expansion, bined with SPCE061A broadcast voice. SPR4096 in use, the use of SPR4096 ResWriter to read and write operation, used to store the speaker39。s current / voltage converter chip MAX471. The chip can be measured current I into pairs to the output voltage U, and is measured Wai, high precision, and U output voltage proportional to the measured current I characteristics. Current monitor output voltage service A / D converter, read through the single A / D converter results in the current line was informed of the situation, through the timely detection of abnormal, issued its report. SPCE061A the development of online debugger PROBE To achieve. It uses a builtin online SPCE061 Circuit Simulation ICE (InCircuit Emulator) and Sunplus39。s programming and missioning work more convenient and efficient. In addition, IDE software simulation can not connect the simulation board under the simulated conditions of the various functions to the hardware debugger. When the system work, the main function of the call to plete a specific function of the human voice training, training for the future success of voice recognition, according
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