eps_internal_drivers.h File Reference

#include <stdint.h>

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Macros
#define	EPS_I2C_ADDR   (0x20 << 1)
#define	EPS_COMMAND_STID   0x1A
#define	EPS_COMMAND_IVID   0x07
#define	EPS_COMMAND_BID   0x00
#define	EPS_DEFAULT_RX_LEN_MIN   5
#define	EPS_MAX_RESPONSE_POLL_TIME_MS   100

Functions
uint8_t	EPS_send_cmd_get_response (const uint8_t cmd_buf[], uint8_t cmd_buf_len, uint8_t rx_buf[], uint16_t rx_buf_len)
	Sends a command to the EPS, and receives the response.
uint8_t	EPS_run_argumentless_cmd (uint8_t command_code)
	Sends an argumentless command to the EPS (expecting no data in the response).

Macro Definition Documentation

EPS_COMMAND_BID

#define EPS_COMMAND_BID   0x00

EPS_COMMAND_IVID

#define EPS_COMMAND_IVID   0x07

EPS_COMMAND_STID

#define EPS_COMMAND_STID   0x1A

EPS_DEFAULT_RX_LEN_MIN

#define EPS_DEFAULT_RX_LEN_MIN   5

EPS_I2C_ADDR

#define EPS_I2C_ADDR   (0x20 << 1)

EPS_MAX_RESPONSE_POLL_TIME_MS

#define EPS_MAX_RESPONSE_POLL_TIME_MS   100

Function Documentation

EPS_run_argumentless_cmd()

uint8_t EPS_run_argumentless_cmd

(

uint8_t

command_code

)

Sends an argumentless command to the EPS (expecting no data in the response).

Parameters

command_code

Command code number.

Returns

0 on success, >0 if error.

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EPS_send_cmd_get_response()

uint8_t EPS_send_cmd_get_response	(	const uint8_t	cmd_buf[],
		uint8_t	cmd_buf_len,
		uint8_t	rx_buf[],
		uint16_t	rx_buf_len )

Sends a command to the EPS, and receives the response.

Parameters

cmd_buf	Array of bytes to send to the EPS, including the command code, STID, IVID, etc.
cmd_buf_len	Exact length of the command buffer.
rx_buf	Buffer to store the response. Is filled with the response, without tags.
rx_buf_len	Length of the response buffer. Must be the command length.

Returns

0 on success, >0 if error.

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