/**********************************************************************
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* Copyright: (C)2021 LingYun IoT System Studio <www.weike-iot.com>
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* Author: GuoWenxue<guowenxue@gmail.com> QQ: 281143292
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* Description: BearKE1 NB-IoT Board GPIO simulate I2C bus source code
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*
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* ChangeLog:
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* Version Date Author Description
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* V1.0.0 2021.08.10 GuoWenxue Release initial version
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***********************************************************************/
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#ifndef INC_GPIO_I2C_H_
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#define INC_GPIO_I2C_H_
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/* I2C Bus ERROR Number */
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enum
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{
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NO_ERROR = 0x00, // no error
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PARM_ERROR = 0x01, // parameter out of range error
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ACK_ERROR = 0x02, // no acknowledgment error
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CHECKSUM_ERROR = 0x04, // checksum mismatch error
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TIMEOUT_ERROR = 0x08, // timeout error
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BUS_ERROR = 0x10, // bus busy
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};
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enum
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{
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ACK_NONE, /* Without ACK/NAK Reply */
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ACK, /* Reply with ACK */
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NAK, /* Reply with NAK */
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};
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extern int I2C_Master_Receive(uint8_t addr, uint8_t *buf, int len);
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extern int I2C_Master_Transmit(uint8_t addr, uint8_t *data, int bytes);
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#endif /* INC_GPIO_I2C_H_ */
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