STEVAL-MKI024V1

STEVAL-MKI024V1 MEMS 3-axis ±2g /±8g smart digital output demonstration board based on the "nano" accelerometer LIS331DL Data brief Features ■ Graphical user interface ■ Mini USB connector ■ Control switches ■ MEMS sensor ■ LED indicators ■ ST72F65x - USB microcontroller Description The STEVAL-MKI024V1 is a demonstration board designed to provide the user with a complete, ready-to-use platform for evaluation of the LIS331DL, the new MEMS belonging to the "nano" family of ST motion sensors. The LIS331DL is the smallest consumer low power three axes linear accelerometer and it features digital I2C/SPI serial interface standard output, smart embedded functions, it has dynamically user selectable full scales of ±2g /±8g and it is capable of measuring accelerations with an output data rate of 100 Hz or 400 Hz. STEVAL-CBL005V1 The device may be configured to generate inertial wake-up/free-fall interrupt signals when a programmable acceleration threshold is crossed at least in one of the three axes. Thresholds and timing of interrupt generators are programmable by the end user. In addition to the MEMS sensor, the demonstration board utilizes an ST72F65x - USB microcontroller which functions as a bridge between the sensor and the PC, on which it is possible to use the graphical user interface (GUI) included with the kit or dedicated software routines for customized applications. April 2009 Doc ID 15563 Rev 1 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com 4 D C B J1 1 V+ 2 DM 3 DP 4 nc 5 GND USB_mini_B D1 1 C8 47nF R6 1.5K R1 180R C9 220nF VCC 2 R7 10K C4 C2 100nF 4.7uF + 1 2 3 4 5 Vddf 6 7 8 Rled 9 Gled DFU_SEL 10 11 CS1 12 C10 13 + 10uF 14 15 16 C1 10uF + 2 C5 100nF 3 UVss UDM UDP UVcc UVdd Vddf Vssf PE5 PE6 PE7 PB0 PB1 PB2 PB3 PB4 PB5 SW2 SW3 R11 10K 3 C3 4.7uF PWM0 AIN6 AIN5 AIN4 AIN3 AIN2 OCMP2 OCMP1 PD3 PD2 PD1 PD0 PC7 PC6 PC5 PC4 + 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 VCC C6 100nF U2 ST7265X_TQFP64 Cosc1 33pF oscin Gled D2 sck Vddf 1 2 3 4 5 12MHz Yoscm Rled J3 SPI 4 16 15 14 Cosc2 33pF oscout TP1 VCC R12 0R 13 12 11 INT1 10 9 U1 Motion Sensor GND GND Int1 Reserved Int2 GND Reserved VDD SDA SDO CS mosi 6 miso 7 cs_pad 8 Vdd_IO NC NC SCL GND R2 R3 100R 100R 4 5 ICP 1 3 5 7 9 INT2 2 4 6 8 10 R13 0R C11 100nF J2 5 iccdata iccclk nRESET iccsel R10 100R R9 100R + C13 10uF D3 VCC R8 1K 6 R5 470R + 2 1 3 4 C15 220nF 3 C14 220nF C18 2.2uF Q2 SO642 Q1 2STR2215 C7 100nF 2 1 Vddf J5 Current_Measure R4 10K SW1 Riccsel NReset 10K DFU_SEL D4 Vdd_dut 6 1 2 A 1 CS1 cs_pad sck miso mosi INT1 INT2 64 oscout 63 oscin 62 61 60 59 58 ic cdata 57 ic cclk 56 55 54 53 52 51 nR ESET 50 ic csel 49 OSCOUT OSCIN Vss2 Vssa Vdda Vdd2 ICCDATA ICCCLK USBEN AIN1 AIN0 SDA SCL RESET Vpp/ICCSEL PWM1 PB6 PB7 PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 SS MISO MOSI SCK Vdd1 Vss1 17 18 19 20 cs_pad21 PD 22 ST 23 INT1 24 INT2 25 26 Vddf 27 miso 28 mosi 29 sck 30 31 32 R Doc ID 15563 Rev 1 2 G 2/4 3 LE25 1 2 3 4 7 ST662ABD C2+ C2- C1+ C1- U3 1 2 3 4 U4 7 8 7 6 5 8 5 6 7 C16 4.7uF 16V VCC VOUT GND SHDN 8 7 6 5 + + 2 J4 TP2 C17 4.7uF 16V C19 100nF C12 100nF VCC 8 1 8 iccsel D C B A Figure 1. 1 1 7 6 5 4 3 2 1 Circuit schematic STEVAL-MKI024V1 Circuit schematic Schematic diagram STEVAL-MKI024V1 2 Revision history Revision history Table 1. Document revision history Date Revision 06-Apr-2009 1 Changes Initial release. Doc ID 15563 Rev 1 3/4 STEVAL-MKI024V1 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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