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adxl345_interface.c
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adxl345_interface.c
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#include <stdio.h>
#include <unistd.h>
#include <stdint.h>
#include <wiringx.h>
#include "adxl345.h"
int fd_i2c;
uint8_t duo_i2cinit(void)
{
// Duo: milkv_duo
// Duo256M: milkv_duo256m
// DuoS: milkv_duos
if(wiringXSetup("milkv_duo", NULL) == -1) {
wiringXGC();
return -1;
}
if ((fd_i2c = wiringXI2CSetup(I2C_DEV, ADXL345_ADDR)) <0) {
printf("I2C Setup failed: %i\n", fd_i2c);
return -1;
}
return 0;
}
uint8_t duo_i2cdeinit(void)
{
return 0;
}
uint8_t duo_i2cread(uint8_t addr, uint8_t reg, uint8_t *buf, uint16_t len)
{
uint16_t lenth = len;
uint8_t *p = buf;
*p = wiringXI2CReadReg8(fd_i2c, reg);
if (*p < 0) return 1;
lenth--;
p++;
while(lenth > 0)
{
*p = wiringXI2CRead(fd_i2c);
if (*p < 0) return 1;
lenth--;
p++;
}
return 0;
}
uint8_t duo_i2cwrite(uint8_t addr, uint8_t reg, uint8_t *buf, uint16_t len)
{
uint16_t lenth = len;
uint8_t *p = buf;
int err;
err = wiringXI2CWriteReg8(fd_i2c, reg, *p);
if (err != 0) return 1;
lenth--;
p++;
while(lenth > 0)
{
err = wiringXI2CWrite(fd_i2c, *p);
if (err != 0) return 1;
lenth--;
p++;
}
return 0;
}
void duo_delayms(uint32_t ms)
{
delayMicroseconds(ms * 1000);
}
uint8_t duo_spiinit(void) //用不到,暂时不实现
{
return 1;
}
uint8_t duo_spideinit(void) //用不到,暂时不实现
{
return 1;
}
uint8_t duo_spiread(uint8_t reg, uint8_t *buf, uint16_t len) //用不到,暂时不实现
{
return 1;
}
uint8_t duo_spiwrite(uint8_t reg, uint8_t *buf, uint16_t len) //用不到,暂时不实现
{
return 1;
}
void duo_rec_cb(uint8_t type) //用不到,暂时不实现
{
void;
}