包耀宗 发表于 2013-7-21 17:59:56

关于STM32驱动RC500的问题

小弟最近在做从51上驱动RC500读卡器移植到STM32上的实验。
知道STM32是3.3V芯片，RC500是5V芯片.
硬件电路我是这样做的：
    使用RC500的独立读/写选通的复用地址总线的连接方式，使用STM32的5V兼容引脚加5V上拉电阻和RC500相连
    采用模拟总线的方式，底层相关驱动代码如下：
<div class="blockcode" style="word-wrap: break-word; margin: 10px 0px; padding: 10px 0px 5px 10px; overflow: hidden; background-color: rgb(247, 247, 247); color: rgb(102, 102, 102); zoom: 1; border: 1px solid rgb(204, 204, 204); font-family: sans-serif; font-size: 14px; line-height: 21px; background-position: 0px 0px; background-repeat: no-repeat repeat; "><div id="code_axT" style="word-wrap: break-word; margin: 0px; padding: 0px; "><ol style="word-wrap: break-word; margin: 0px 0px 0px 10px !important; padding: 0px !important; list-style: none; ">    <li style="word-wrap: break-word; margin: 0px 0px 0px 2em; padding: 0px 0px 0px 10px; list-style-type: decimal-leading-zero; font-family: Monaco, Consolas, '"Lucida Console"', '"Courier New"', serif; font-size: 12px; line-height: 1.8em; ">/**            <li style="word-wrap: break-word; margin: 0px 0px 0px 2em; padding: 0px 0px 0px 10px; list-style-type: decimal-leading-zero; font-family: Monaco, Consolas, '"Lucida Console"', '"Courier New"', serif; font-size: 12px; line-height: 1.8em; ">      *      @name                static void GPIO_Write1(u8 value)    <li style="word-wrap: break-word; margin: 0px 0px 0px 2em; padding: 0px 0px 0px 10px; list-style-type: decimal-leading-zero; font-family: Monaco, Consolas, '"Lucida Console"', '"Courier New"', serif; font-size: 12px; line-height: 1.8em; ">* @briefGPIOBÒý½Å¸ß8λÊä³öÊý¾Ý    <li style="word-wrap: break-word; margin: 0px 0px 0px 2em; padding: 0px 0px 0px 10px; list-style-type: decimal-leading-zero; font-family: Monaco, Consolas, '"Lucida Console"', '"Courier New"', serif; font-size: 12px; line-height: 1.8em; ">* @paramvalue ÒªÊä³öµÄÊý¾Ý      <li style="word-wrap: break-word; margin: 0px 0px 0px 2em; padding: 0px 0px 0px 10px; list-style-type: decimal-leading-zero; font-family: Monaco, Consolas, '"Lucida Console"', '"Courier New"', serif; font-size: 12px; line-height: 1.8em; ">* @retval None    <li style="word-wrap: break-word; margin: 0px 0px 0px 2em; padding: 0px 0px 0px 10px; list-style-type: decimal-leading-zero; font-family: Monaco, Consolas, '"Lucida Console"', '"Courier New"', serif; font-size: 12px; line-height: 1.8em; ">*/    <li style="word-wrap: break-word; margin: 0px 0px 0px 2em; padding: 0px 0px 0px 10px; list-style-type: decimal-leading-zero; font-family: Monaco, Consolas, '"Lucida Console"', '"Courier New"', serif; font-size: 12px; line-height: 1.8em; ">void GPIOB_Write1(u8 value)      <li style="word-wrap: break-word; margin: 0px 0px 0px 2em; padding: 0px 0px 0px 10px; list-style-type: decimal-leading-zero; font-family: Monaco, Consolas, '"Lucida Console"', '"Courier New"', serif; font-size: 12px; line-height: 1.8em; ">{    <li style="word-wrap: break-word; margin: 0px 0px 0px 2em; padding: 0px 0px 0px 10px; list-style-type: decimal-leading-zero; font-family: Monaco, Consolas, '"Lucida Console"', '"Courier New"', serif; font-size: 12px; line-height: 1.8em; ">      RC500_Adress_Data_GPIO_Config(GPIO_Mode_Out_OD);//ÅäÖÃΪ¿ªÂ©Êä³ö    <li style="word-wrap: break-word; margin: 0px 0px 0px 2em; padding: 0px 0px 0px 10px; list-style-type: decimal-leading-zero; font-family: Monaco, Consolas, '"Lucida Console"', '"Courier New"', serif; font-size: 12px; line-height: 1.8em; ">            <li style="word-wrap: break-word; margin: 0px 0px 0px 2em; padding: 0px 0px 0px 10px; list-style-type: decimal-leading-zero; font-family: Monaco, Consolas, '"Lucida Console"', '"Courier New"', serif; font-size: 12px; line-height: 1.8em; ">      GPIO_SetBits(GPIOB, (value

包耀宗 发表于 2013-7-21 18:01:19

RE:关于STM32驱动RC500的问题

自己先顶一下
对了，STM32的GPIOB 8-15连接RC500的AD0-AD15
PA11      NCS
PA12      NWR
PA13      NRD
PA14      ALE
PA15      RST
PA8      RC500IRQ
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