在使用keil软件时,总是报这样的错误*** ERROR L107: ADDRESS SPACE OVERFLOW。也是多方查找才找到问题所在。就是我们所定义变量是定义在51的RAM里的,而且供变量存储的只有256或者128个字节(看型号吧),这里看网上说在变量前面加idata,然而并不管用。还是尽量节省RAM吧。只读的数组定义前面加上code,全局变量尽量少点...
51单片机rc522射频的与电路图.pdf,INTEGRATED CIRCUITS DATA SHEET MFRC522 Contactless Reader IC Preliminary Specification 2005 August 01 Revision 2.0 INFORMATION Philips Semiconductors Preliminary Specification Revision 2.0 2005 August 01 Contactless Reader
(C8051F500/1/4/5 and C8051F508/9-F510/1) with 64 kB address space Programmable Counter/Timer Array (PCA) with six capture/compare modules and Watchdog Timer function On-chip Voltage Regulator On-chip Power-On Reset, VDD Monitor, and Temperature Sensor On-chip Voltage...