短信软件 通过手机与电脑连接 发出AT指令进行收发指令 测试过可以发 读SIM卡内的信息一直失败 而在手机内查看 SIM卡内不存信息的.可能是导致失败的原因-SMS software to connect through the phone and computer to issue commands to send and receive AT commands can be issued tested read SIM card information has been a failure

UART串口在SIM卡读写中的应用-UART serial application in the SIM card reader

sim card driver, 在cyw下编译，支持sim卡读写操作，比如authenticate，等等操作(this is sim card driver. code is wrote in cyw, supporting sim card read and write like authenticate, language.)

sim卡读写，非常详细，而且有注释，欢迎大家下载观看。(SIM card driver development)