STEVAL-MKI077V1 MEMS: demonstration board based on the LPR4150AL (analog output two axis gyroscope) Data brief Features ■ Two working modes: – analog (AWM) – digital (DWM) ■ RoHS compliant Description The STEVAL-MKI077V1 is a demonstration kit designed to provide the user with a complete, ready-to-use platform for demonstration of ST MEMS devices in the LPR4150AL product family. The kit includes a sensing element and an IC interface capable of translating information from the sensing element into a measured signal that can be used for external applications. STEVAL-MKI077V1 In addition to the MEMS sensor, the demonstration board uses an ST7 microcontroller which functions as a bridge between the sensor and the PC. This makes it possible to download the graphical user interface (GUI) from the website or to use dedicated software routines for customized applications. The STEVAL-MKI077V1 demonstration board has been designed for use in two different working modes: analog and digital. In analog working mode (AWM), the microcontroller on the board is disabled and the analog outputs of the device are available to the user on a dedicated connector. This is the default working mode when the power supply is applied either through the USB connector or through the supply connector. In digital working mode (DWM), the microcontroller on the board is enabled and it allows the user to digitally acquire the output signals of the device, to see them on the PC through the dedicated GUI, and to manage the control pins of the device. June 2010 Doc ID 17630 Rev 1 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com 4 * 6 $ $0 NC '.$ 53"?MINI?" $ # N& 2 + 2 # + N& 6REF 2 2 2 $.- # N& 2 2 2 + /548 # TBD .# X).?8 .# .# .# # N& .OT -OUNTED # # N& U& 6DDF 2LED 'LED $&5?3%, # U& # U& 6## *0 &),46$$ 6#/.4 34 0$ X/UT # N& 40 40 56SS 5$5$0 56CC 56DD 6DDF 6SSF 0% 0% 0% 0" 0" 0" 0" 0" 0" 37 6REF # U& 07- !). !). !). !). !). /#-0 /#-0 0$ 0$ 0$ 0$ 0# 0# 0# 0# -(Z 9OSCM 6## # N& X/UT /UT X/UT /UT 6REF /UT!NA /UT 'LED $ /UT!NA #OSC P& OSCOUT 6#/.4 6DD?DUT &),46$$ 5 34&!24% #OSC P& OSCIN .OT -OUNTED # TBD .# X).?9 6#/.4 &),46$$ 6DD /549 5 * 2 2 2 2 6DDF *0 *0 *0 2LED 6## 2 $.- 2 2 6REF (0 *0 0$ *0 34 *0 )#0 * 2 + 6DDF (0?U 6DDF 0$?U 6DDF 34?U # N& # N& ICCDATA ICCCLK N2%3%4 ICCSEL 2 + (0 2 + 0$ 2 + 34 # U& 2 + 37 .2ESET $&5?3%, 6DD?DUT # N& 2 + 2 + 6## 6DDF *0 #URRENT?-EASURE 2 + /UT 34 0$ 6DD?DUT X/548 (0 .# '.$ 6DD (0 2ES .# .# .# .# 6REF X/549 X/UT .# OSCOUT OSCIN 6DDF IC CDATA IC CCLK N2 %3%4 IC CSEL /3#/54 /3#). 6SS 6SSA 6DDA 6DD )##$!4! )###,+ 53"%. !). !). 3$! 3#, 2%3%4 6PP)##3%, 07- 2 2 # N& # N& 1 3/ 1 342 # U& 34!"$ # # # # 5 ,%#$ 5 40 # N& # N& # U& 6 6## 6/54 '.$ 3($. 6## *0 ICCSEL 0OWER 3UPPLY * # U& 6 .# 0" 0" 0! 0! 0! 0! 0! 0! 0! 0! 33 -)3/ -/3) 3#+ 6DD 6SS (0?U 0$?U 34?U 6DDF ' Doc ID 17630 Rev 1 /UT!NA /UT!NA 6REF STEVAL-MKI077V1 circuit schematic Figure 1. Schematic diagram 1 2 2/4 # N& Schematic diagram STEVAL-MKI077V1 !-V STEVAL-MKI077V1 2 Revision history Revision history Table 1. Document revision history Date Revision 16-Jun-2010 1 Changes Initial release. Doc ID 17630 Rev 1 3/4 STEVAL-MKI077V1 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. 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