资 源 简 介
功能:利用时钟芯片DS12887在LCD(LCM141)上显示时间,通过4×4键盘来修改时间,利用MAXIM232进行标准串口发送。4×4键盘中有数字键(0~9)和功能键(F1键为“→”,F2键为“←”,F4键为“发送”,设置键为“设置当前时间”,确定键为“把修改的当前时间写入到DS12887相应的存储单元中”)。
硬件:单片机为8K的98C52(ATMEL),LCD为北京青云的LCM141,标准串口总线为MAXIM的232芯片,时钟芯片为DS12887(DALLAS)
-Function: the use of clock chip DS12887 in the LCD (LCM141) show time, through the 4 × 4 keyboard to modify the time and using the standard serial port to send MAXIM232. 4 × 4 keyboard in numeric keypad (0 ~ 9) and the function keys (F1 key for the