78 lines
1.6 KiB
C
78 lines
1.6 KiB
C
/*
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* Licensed under the GNU General Public License version 2 with exceptions. See
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* LICENSE file in the project root for full license information
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*/
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/** \file
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* \brief
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* Headerfile for esc_eep.c
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*/
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#ifndef __esc_eep__
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#define __esc_eep__
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#include <cc.h>
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#include "esc.h"
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/* EEPROM commands */
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#define EEP_CMD_IDLE 0x0
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#define EEP_CMD_READ 0x1
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#define EEP_CMD_WRITE 0x2
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#define EEP_CMD_RELOAD 0x4
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/* read/write size */
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#define EEP_READ_SIZE 8
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#define EEP_WRITE_SIZE 2
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/* CONSTAT register content */
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typedef struct CC_PACKED
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{
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union {
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uint16_t reg;
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struct {
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uint8_t wrEnable:1;
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uint8_t reserved:4;
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uint8_t eeEmulated:1;
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uint8_t eightByteRead:1;
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uint8_t twoByteAddr:1;
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uint8_t cmdReg:3;
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uint8_t csumErr:1;
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uint8_t eeLoading:1;
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uint8_t ackErr:1;
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uint8_t wrErr:1;
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uint8_t busy:1;
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} bits;
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} contstat;
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uint32_t addr;
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} eep_stat_t;
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/**
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* ECAT EEPROM configuration area data structure
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*/
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typedef union eep_config
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{
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struct
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{
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uint16_t pdi_control;
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uint16_t pdi_configuration;
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uint16_t sync_impulse_len;
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uint16_t pdi_configuration2;
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uint16_t configured_station_alias;
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uint8_t reserved[4];
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uint16_t checksum;
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};
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uint32_t dword[4]; /**< Four 32 bit double word equivalent to 8 16 bit configuration area word. */
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}eep_config_t;
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/* periodic task */
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void EEP_process (void);
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/* From hardware file */
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void EEP_init (void);
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int8_t EEP_read (uint32_t addr, uint8_t *data, uint16_t size);
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int8_t EEP_write (uint32_t addr, uint8_t *data, uint16_t size);
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#endif
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