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The ADXL375 is a small, thin, 3-axis accelerometer that provides low power consumption and high resolution measurement up to ±200 g. The digital output data is formatted as 16-bit, twos complement data and is accessible through a SPI (3- or 4-wire) or I2C digital interface.An integrated memory management system with a 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor activity and lower overall system power consumption.Low power modes enable intelligent motion-based power management with threshold sensing and active acceleration measurement at extremely low power dissipation.
LibDriver ADXL375 is a full-featured driver of ADXL375 launched by LibDriver. It provides acceleration reading, acceleration FIFO mode acquisition, activity /inactivity state detection, shock detection and other functions. LibDriver is MISRA compliant.
/src inc 8000 ludes LibDriver ADXL375 source files.
/interface includes LibDriver ADXL375 IIC and SPI platform independent template.
/test includes LibDriver ADXL375 driver test code and this code can test the chip necessary function simply.
/example includes LibDriver ADXL375 sample code.
/doc includes LibDriver ADXL375 offline document.
/datasheet includes ADXL375 datasheet.
/project includes the common Linux and MCU development board sample code. All projects use the shell script to debug the driver and the detail instruction can be found in each project's README.md.
/misra includes the LibDriver MISRA code scanning results.
Reference /interface IIC and SPI platform independent template and finish your platform IIC and SPI driver.
Add the /src directory, the interface driver for your platform, and your own drivers to your project, if you want to use the default example drivers, add the /example directory to your project.
You can refer to the examples in the /example directory to complete your own driver. If you want to use the default programming examples, here's how to use them.
#include "driver_adxl375_basic.h"
uint8_t res;
uint8_t i;
float g[3];
res = adxl375_basic_init(ADXL375_INTERFACE_IIC, ADXL375_ADDRESS_ALT_0);
if (res != 0)
{
return 1;
}
...
for (i = 0; i < 3; i++)
{
res = adxl375_basic_read((float *)g);
if (res != 0)
{
(void)adxl375_basic_deinit();
return 1;
}
adxl375_interface_debug_print("adxl375: x is %0.3f.\n", g[0]);
adxl375_interface_debug_print("adxl375: y is %0.3f.\n", g[1]);
adxl375_interface_debug_print("adxl375: z is %0.3f.\n", g[2]);
adxl375_interface_delay_ms(1000);
...
}
...
(void)adxl375_basic_deinit();
return 0;#include "driver_adxl375_fifo.h"
uint8_t res;
float g[3];
void fifo_callback(float (*g)[3], uint16_t len)
{
...
return 0;
}
res = gpio_interrupt_init(adxl375_fifo_irq_handler);
if (res != 0)
{
return 1;
}
res = adxl375_fifo_init(ADXL375_INTERFACE_IIC, ADXL375_ADDRESS_ALT_0, fifo_callback);
if (res != 0)
{
(void)gpio_interrupt_deinit();
return 1;
}
while (1)
{
adxl375_interface_delay_ms(10);
...
}
...
(void)gpio_interrupt_deinit();
(void)adxl375_fifo_deinit();
return 0;#include "driver_adxl375_interrupt.h"
uint8_t res;
void interrupt_callback(uint8_t type)
{
switch (type)
{
case ADXL375_INTERRUPT_DATA_READY :
{
...
break;
}
case ADXL375_INTERRUPT_SINGLE_SHOCK :
{
adxl375_interface_debug_print("adxl375: irq single shock.\n");
...
break;
}
case ADXL375_INTERRUPT_DOUBLE_SHOCK :
{
adxl375_interface_debug_print("adxl375: irq double shock.\n");
...
break;
}
case ADXL375_INTERRUPT_ACTIVITY :
{
adxl375_interface_debug_print("adxl375: irq activity.\n");
...
break;
}
case ADXL375_INTERRUPT_INACTIVITY :
{
adxl375_interface_debug_print("adxl375: irq inactivity.\n");
...
break;
}
case ADXL375_INTERRUPT_OVERRUN :
{
...
break;
}
default :
{
...
break;
}
}
}
res = gpio_interrupt_init(adxl375_interrupt_irq_handler);
if (res != 0)
{
return 1;
}
res = adxl375_interrupt_init(ADXL375_INTERFACE_SPI, ADXL375_ADDRESS_ALT_0,
interrupt_callback,
ADXL375_BOOL_TRUE
ADXL375_BOOL_TRUE,
ADXL375_BOOL_TRUE);
if (res != 0)
{
(void)gpio_interrupt_deinit();
return 1;
}
...
while (1)
{
if (adxl375_interrupt_server() != 0)
{
return 1;
}
adxl375_interface_delay_ms(10);
...
}
...
(void)gpio_interrupt_deinit();
(void)adxl375_interrupt_deinit();
return 0;Online documents: https://www.libdriver.com/docs/adxl375/index.html.
Offline documents: /doc/html/index.html.
Please refer to CONTRIBUTING.md.
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