2016-08-10 23:43:20 +08:00
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2016-11-20 16:05:16 +08:00
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#ifndef I2C_H
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#define I2C_H
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2016-08-10 23:43:20 +08:00
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2016-09-24 21:31:38 +08:00
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#define SCL_PINNUM 15
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2016-11-29 16:03:17 +08:00
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#define SDA_PINNUM 14
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2016-09-24 21:31:38 +08:00
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#define SCL BIT_ADDR((GPIOB_BASE+12), SCL_PINNUM)
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#define SDA BIT_ADDR((GPIOB_BASE+12), SDA_PINNUM)
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//#define AD0 BIT_ADDR((GPIOC_BASE+12), 6)
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2016-08-10 23:43:20 +08:00
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#define GPIOB_IDR_Addr (GPIOB_BASE + 8)
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2016-09-24 21:31:38 +08:00
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#define READ_SDA BIT_ADDR(GPIOB_IDR_Addr, SDA_PINNUM)
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2016-08-10 23:43:20 +08:00
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#define IIC_DELAY() {delay_us(1);}
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void delay_us(volatile unsigned int nus);
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void IIC_init();
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void IIC_Start();
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void IIC_Stop();
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void IIC_Ack(unsigned char ack);
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unsigned char IIC_Wait_Ack();
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void IIC_Send(unsigned char dat);
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unsigned char IIC_Read();
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#endif
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