STEVAL-MKI089V1 STMicroelectronics, STEVAL-MKI089V1 Datasheet - Page 31

• Manufacturer Part Number: STEVAL-MKI089V1
• Description: DEMO BOARD FOR LIS331DLH
• Manufacturer: STMicroelectronics
• Series: MEMS, nanor

Specifications of STEVAL-MKI089V1

• Sensor Type: Accelerometer, 3 Axis
• Sensing Range: ±2g, 4g, 8g
• Interface: I²C, SPI
• Sensitivity: 3.9mg/digit, 2mg/digit, 1mg/digit
• Embedded: No
• Utilized Ic / Part: LIS331DLH
• Acceleration: 2 g, 4 g, 8 g
• Sensing Axis: Triple Axis
• Interface Type: I2C, SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: LIS331DLH
• Other names: 497-10493

UM0701
7.4
Example of MEMS Library usage: digital MEMS over I
This section shows an example of the main function to set-up and read data from a digital
MEMS over the I
SPI) would make this example work over an SPI interface. Do not forget to set-up the
defines in the stm32_mems_adapter.h file according to the STM32 demonstration board
used.
/* This main function sets-up and reads data from LIS302DL digital
MEMS */
int main(void)
{
numbers! */
*/
/* CTRL_REG1 Register - Data rate 400Hz, power up, enable all axes
/* Wait 40ms after reset to let the MEMS turn on from power down*/
u8 i;
u8 i2c_buffer[6];
t_mems_data MEMS_Data={0, 0, 0, 0, 0, 0};
/* Setup STM32 system clock and other peripherals here */
/* … */
/* Setup all peripherals related to digital MEMS */
MEMS_I2C_Setup(LIS302DL_I2C_ADDR);
Delay(40);
/* Check who_am_i value */
MEMS_I2C_ReadReg(LIS302DL_WHO_AM_I, &i);
if (i != LIS302DL_WHO_AM_I_VALUE) return 1;
/* Initialize registers of LIS302DL */
/* IMPORTANT NOTE: These settings differ for different MEMS part
/* Following are settings for LIS302DL. */
MEMS_I2C_WriteReg (LIS302DL_CTRL_REG1, 0x47);
while (1)
{
2
C. Minor modifications (mainly replacing I
Doc ID 15703 Rev 1
STM32-MEMS development kit
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C in names of functions with
2
C
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