- 使用16DIO的xml文件,不需要mcu来设计PDO/SDO的协议栈;利用该模式的DO表示FPGA寄存器,DI表示数值;[ 关于该PDI接口,AX58100手册有说明The Process Data Interface (PDI, also name host interface) provides SPI slave, asynchronous 8/16-bit microcontroller interface (also name Asynchronous Local Bus) and Digital I/O. The SPI slave and asynchronous 8/16-bit Local Bus interface will be used when external MCU in employed the slave system, and the Digital I/O is used for when direct I/O control.]
- 关于16DIO.XML文件中地址与索引的对应关系,可能是芯片内固定好的.[The AX58100 supports function register mirror from/to ESC memory space, the mirror registers located at process data memory address from 0x3000 to 0x33FF]
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从AX58100手册来看,16DIO.XML文件中使用的SM地址是差不多的。
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DIO的输出属性
手册上,E2PROM的第7-8字节定义了输入输出属性:
与xml文件一致: