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37 lines
859 B
C
37 lines
859 B
C
#ifndef __ic2_mcu__
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#define __ic2_mcu__
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// ========================================================
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#define ERR_OK 0
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#define ERR_NAK 1
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#define ERR_NOSLAVE 2
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// ========================================================
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extern volatile bit iic_mcu_busy;
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extern bit iic_mcu_wo_dma;
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extern u8 iic_mcu_result;
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// ========================================================
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err iic_mcu_read( u8 SLA, u8 adrs, u8 len, u8 * dest );
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u8 iic_mcu_read_a_byte( u8 SLA, u8 adrs );
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err iic_mcu_write( u8 SLA, u8 adrs, u8 len, void * src );
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err iic_mcu_write_a_byte( u8 SLA, u8 adrs, u8 dat );
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err iic_mcu_write_a_byte_codec( u8 adrs, u8 dat );
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// ↓その通信が完了したら解除されます。
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#define iic_mcu_set_wo_dma() { while( iic_mcu_busy ){;} iic_mcu_wo_dma = 1; }
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void iic_mcu_start( );
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void iic_mcu_stop( );
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#endif
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