26 lines
707 B
C
26 lines
707 B
C
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#ifndef __DRV_PCF8574_H
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#define __DRV_PCF8574_H
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#include <board.h>
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#include <finsh.h>
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#include <rtdevice.h>
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#include <rthw.h>
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//PCF8574<37><34><EFBFBD><EFBFBD>IO<49>Ĺ<EFBFBD><C4B9><EFBFBD>
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#define BEEP_IO 0 //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> P0
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#define AP_INT_IO 1 //AP3216C<36>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD> P1
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#define DCMI_PWDN_IO 2 //DCMI<4D>ĵ<EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> P2
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#define USB_PWR_IO 3 //USB<53><42>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> P3
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#define EX_IO 4 //<2F><>չIO,<2C>Զ<EFBFBD><D4B6><EFBFBD>ʹ<EFBFBD><CAB9> P4
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#define MPU_INT_IO 5 //MPU9250<35>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD> P5
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#define RS485_RE_IO 6 //RS485_RE<52><45><EFBFBD><EFBFBD> P6
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#define ETH_RESET_IO 7 //<2F><>̫<EFBFBD><CCAB><EFBFBD><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD> P7
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rt_err_t rt_pcf8574_init(void);
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void rt_pcf8574_write_bit(rt_uint8_t bit, rt_uint8_t state);
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rt_uint8_t rt_pcf8574_read_bit(rt_uint8_t bit);
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#endif
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