谈ARM汽车电子控制门锁的遥控

近几年，随着汽车产量的增加汽车电子也在迅速的发展，然而我们的汽车电子仍然处在比较落后的局面。针对这一问题，本文描述的汽车电子控制门锁的遥控仪器采用ARM（先进的精简指令微处理器）芯片．利用它的定时器具有精确定时计算的特征，通过对ABM定时器设置，当TOPC（预分频计数器）到达TOPB（预分频寄存器）的设定FPCLK（外设时钟频率11059200）值时，定时器计数器加1，即每秒加1，从0×00000000加到0×FFFFFFFF，需135年。通过ARM捕获的随机值将在135年内没有重复，使用这一方式作出来的汽车电子控制门锁遥控仪器将永远不会被破译。从而说明汽车电子仪器应多使用当今ARM一类的先进方式，提高中国制造的水平．

Research on Remote Control of ARM Automobile Electron Door Locks

As car output increases, automobile electron develops too fast, nevertheless our automobile electron lags all the same. Aim at the problem, ARM （Advanced RISC Machines） CMOS chip was adopted for remote control of automobile electron door locks. According to the character of precision timing of timer and passing setup, when TOPC （Prescale Counter） arrives at the value of TOPR （Prescale Register） which is enactment value FPCLK （Outer setup timer frequency 11059200）, Timer0 Counter TOTC will add 1, namely TOTC will add 1 for each second. From 0×00000000 to 0×FFFFFFFF,135 years will be needed. The occasion value captured by ARM during 135 years will not be duplicate. The automobile electron remote control of door locks, which is made by this mode, would always unable translates. Therefore, automobile electron instrument should more use the today ARM mode.