18006.STM32通过SPI读取LAN9253数据

1 背景

MCU处理器通过SPI 读取ethercat 从站LAN9253数据信息

2 原理图

3 ethercat从站 LAN9253 寄存器手册

#define PRAM_ABORT        			0x40000000
#define PRAM_BUSY         			0x80
#define PRAM_AVAIL        			0x01
#define READY             			0x08
#define DUMMY_BYTE					0xFF#define BYTE_TEST               	0x0064      			// byte order test register
#define HW_CFG                  	0x0074      			// hardware configuration register
#define RESET_CTL               	0x01F8      			// reset register
#define ECAT_CSR_DATA           	0x0300      			// EtherCAT CSR Interface Data Register
#define ECAT_CSR_CMD            	0x0304      			// EtherCAT CSR Interface Command Register
#define ECAT_PRAM_RD_ADDR_LEN   	0x0308      			// EtherCAT Process RAM Read Address and Length Register
#define ECAT_PRAM_RD_CMD        	0x030C      			// EtherCAT Process RAM Read Command Register
#define ECAT_PRAM_WR_ADDR_LEN   	0x0310      			// EtherCAT Process RAM Write Address and Length Register
#define ECAT_PRAM_WR_CMD        	0x0314      			// EtherCAT Process RAM Write Command Register
#define WDOG_STATUS             	0x0440      			// watch dog status
#define ECAT_LOCAL_TIME				0x0910#define DIGITAL_RST       			0x00000003#define ESM_INIT                	0x01          			// state machine control
#define ESM_PREOP               	0x02          			// (state request)
#define ESM_BOOT                	0x03          			//
#define ESM_SAFEOP              	0x04          			// safe-operational
#define ESM_OP                  	0x08          			// operational#define Tout 						2000

4 程序待补充