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st7 family st7dali evaluation kit user manual release 1.0 ref: doc-ST7DALI-EVAL
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st7 family st7dali evaluation kit user manual march 2004 ref- doc-ST7DALI-EVAL 1
use in life support devices or systems must be expressly authorized. stmicroelectronics products are not authorized for use as critical components in life support devices or systems without the express written approval of stmi- croelectronics. as used herein: 1.life support devices or systems are those which (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accord- ance with instructions for use provided with the product, can be reasonably expected to result in significant injury to the user. 2. a critical component is any component of a life support device or system whose failure to per- form can reasonably be expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
march 2004 5/32 rev. 1.0 ST7DALI-EVAL evaluation kit user manual introduction a microcontroller is needed for communication in dali dimmable ballast applications. a com- munication protocol and the interface parameters have been defined by the leading manufac- turers of lighting equipment. this interface is currently in the process of international standard- ization and will be included in annex e of the iec929/ en60929 international standard for electronic ballast performance requirements. the draft of the standard can be obtained from the standard documentation institutions in the same way as other iec documentation. for more information about dali, visit the information platform at http://www.dali-ag.org/ stmicroelectronics offers a dedicated st7dali microcontroller in its standard 8-bit st7 micro family, and fully documented free software in ansi-c, which is fully compliant with this standard (annex e.4). the corresponding test procedure (annex g) has been followed to val- idate the compliance. the software is described in application note an1601. this evaluation kit allows you to evaluate the stmicroelectronics solution. as a first step, from a master board connected by rs232 to a user-friendly pc software, you can send dali commands to the dali slave boards and see the action on the light (or on yellow led). then, when you start a design, you can consider the slave board itself, hardware and soft- ware, as a reference design for a dali gateway topology. figure 1. ST7DALI-EVAL evaluation kit dali slave board dali master board ballast dali evaluation kit 1-10 v dali slave software 1-10 v up to 64 slave s dali slave board ballast dali master
6/32 table of contents 32 introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1 kit checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2 hardware features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.1 dali slave board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.2 master board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3 getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1 pc software installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.2 microcontroller software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.3 connecting the boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.4 running the pc software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.5 basic commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.5.1 addressing the ballasts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.5.2 light level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4 pc software features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.1 addressing ballasts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.1.1 full search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.1.2 quick search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.2 simulate fading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.3 configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.3.1 storing a group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.3.2 storing a scene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.4 addressing commands to a group . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.5 calling back a scene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.6 manual dali interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.6.1 automatic command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.6.2 manual command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.7 run automated demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.8 save/load configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7/32 table of contents 5 dali slave board features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.1 leds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.1.1 green and red leds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.1.2 yellow led . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.2 jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.3 dali interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 5.4 st7dali software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 5.5 halt mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 5.6 software description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.7 reprogramming the microcontroller . . . . . . . . . . . . . . . . . . . . . . . 25 5.8 debugging the application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.9 useful documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 6 appendix: board schematics and bills of material . . . . . . . . . . . . . . 26 6.1 dali gateway slave board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.1.1 slave board schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.1.2 slave board bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.2 dali master board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 6.2.1 master board schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 6.2.2 master board bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 7 kit picture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8/32 kit checklist 1 kit checklist the ST7DALI-EVAL evaluation kit contains the following items: 1 cd-rom 1 master board 2 slave boards 1 4-wire cable (12v supply + dali bus) 1 rs232 db9 null-modem cable 1 ac/dc adaptor (13.5v dc 600ma)
9/32 hardware features 2 hardware features 2.1 dali slave board st7dali flash microcontroller with dali communication module 1-10v output (standard dimmable ballast input) dali communication interface (this interface passes the iec standard 60929 ?physical oper- ational parameters? test sequences). 12v supply connector. no need for an external resonator, st7fdali has an internal 1% rc oscillator the 12v power for the board is supplied from the master board. an ld2980 linear voltage reg- ulator converts to 5v. the board outputs an analog signal between 1 to 10v to control a standard dimmable ballast. j1 input connector: 12v, 0v, dali1, dali2 j2 output connector: 0-10v green and red leds: indicate if the slave was addressed by the last command or not yellow led: displays the 1-10v output level 2.2 master board dali communication interface rs232 communication interface ac/dc adaptor input j1 output connector: 0v, 12v, dali1, dali2 p1 input/output connector: rs232 green and red leds: limitation: the master board power supply does not fully meet the dali bus specification. it has been de- signed especially for this evaluation kit, to be connected to 2 slave boards only. the function- ality is not guaranteed if more slaves are connected to the bus.
10/32 getting started 3 getting started 3.1 pc software installation the pc software runs under win nt, win 2000, win98 & win95 run the setup.exe file on the cd-rom. and follow the indications. 3.2 microcontroller software st72c334 (master board) and st7dali (slave board) are already programmed. 3.3 connecting the boards connect both slave boards and the master boards with the 4-wire cable you can optionally connect a dimmable ballast, with a standard 1-10v input, to each slave board to run the demo (not provided with this evaluation kit). otherwise, a yellow led on the slave board allows you to see a corresponding change in the level of the lamp. connect the master board to the pc serial port with the rs232 null-modem cable connect the ac/dc adaptor to the master board plug the ac/dc adaptor on the mains. important note: after this operation, send a full search command (select ? extras ? menu, item ? search for ballasts ?? .) and a quick search command (select ? extras ? menu, item ? search for ballasts ?? .). 3.4 running the pc software on the pc, run ? powercontrol ? in start/programs/st7dali. the user interface consists of a main window and 5 other windows. the main window is al- ways visible. select ? view ? menu to choose other visible windows. figure 2. main window
11/32 getting started windows: ballast grid window: ballasts found on the bus after a search light level slider window: buttons and sliders for adjusting light level parameters selection window: buttons for selecting groups scene window: buttons for selecting scenes dali logger window: displays all dali commands sent 3.5 basic commands 3.5.1 addressing the ballasts select ? extras ? menu, item ? search for ballasts ?? . the following window appears: figure 3. figure 3: search for ballast window run a ? full search ? . when it is finished, run a ? quick search ? . the master will find two ballasts on the network. the ballast window shows these ballasts. see section 4.1 addressing ballasts for more details on this topic.
12/32 getting started figure 4. screen overview after a quick search 3.5.2 light level you can choose to change the light level of only selected ballasts or all ballast by pushing ei- ther the ? selected ? or the ? all ? buttons in the ? light level ? window. you can change the light level by pushing the up ? >> ? and down ? << ? buttons, or by moving the slider. figure 5. light level window ballasts change the light level immediately. push the ? update ? button in the ? ballasts ? window to update all the ballast light level in the ? ballasts ? window. to do so, the master asks each bal-
13/32 getting started last on the network its actual level (query actual level command). the colors in the ? ballast ? window represent the light level (black for 0%, yellow for 100%). figure 6. ballasts window after clicking on update
14/32 pc software features 4 pc software features 4.1 addressing ballasts 4.1.1 full search a ? full search ? is an example of address allocation to be done after a dali system installa- tion. each ballast (up to 64) must have a short address. the procedure is the following: to start the algorithm, the master sends the initialize command the master sends the randomize command to make each ballast generate a 24-bit random number the master searches the ballast with the lowest random number (searchaddrh, sear- chaddrm, searchaddrl, compare commands) and a short address (6-bit) is as- signed to this ballast (program short adress command). this ballast stores this short address in the st7dali e 2 prom. the programmed short address is verified (verify short address command) this ballast is removed from the search process (withdraw command) this procedure is repeated until all ballasts have a short address. the process is stopped by the terminate command. if two or more ballasts have the same short address, the addressing procedure is restarted only for these ballasts with the initialize command. all the successive commands are displayed in the dali logger window. from now, every ballast on the network has a short address, stored in the microcontroller`s e 2 prom. 4.1.2 quick search a ? quick search ? searches ballasts with a short address, connected on the dali bus. the master uses the query ballast command. 4.2 simulate fading this operation is done by pushing the ? simulate fading ? button in the ? slider ? window. fade time and fade rate parameters can be adjusted by sliders. push the ? apply ? button to val- idate the modifications. the fading can be done either on ? all ? or ? selected ? ballasts.
15/32 pc software features the target light level is chosen by moving the slider with the mouse. the simulation will begin as soon as you release the left mouse button, taking into account the fade time and fade rate parameters. 4.3 configuration select ? options ? menu, item ? configuration ?? the following window appears: figure 7. configuration window choose if you want the following action to apply to ? all ? or only ? selected ? ballasts by pushing the right button at the top of the window. 4.3.1 storing a group choose the number x of the group you want to create with the combo. push the ? ok ? button to define the group number x. the group ? s name can be customized by selecting the ? option ? menu, item ? change group names ??
16/32 pc software features figure 8. names of groups 4.3.2 storing a scene choose the number x of the scene you want to create with the combo. by pushing the ? ok ? button, the actual light level of selected or all ballasts will be stored as scene number x. the master makes each addressed ballast storing the actual level as its scene x level. the scene name can be customized by selecting the ? option ? menu, item ? change scene names ??
17/32 pc software features figure 9. names of scenes 4.4 addressing commands to a group select a group by pushing the corresponding button in the ? groups ? window.
18/32 pc software features figure 10. group window 4.5 calling back a scene a scene can be called back by pushing the corresponding button in the ? scene ? window. the master sends a go to scene, and a query actual level command to every ballast. each ballast outputs the level corresponding to this scene, previously stored in the microcon- troller`s e 2 prom.
19/32 pc software features figure 11. scene window 4.6 manual dali interface select the ? options ? menu, item ? send dali command ?? the following window appears:
20/32 pc software features figure 12. manual dali interface window 4.6.1 automatic command an ? automatic ? command can be sent by choosing a command in the ? command ? combo box. all dali commands defined in the en60929 are available (see summary of the command set in draft, section e.4.3.5). the second combo box allows the recipient(s) to be chosen: broadcast: all ballasts connected on the dali bus group xx: all ballasts in the xx group (xx between 0 and 15) short yy: ballast with the short address yy (yy between 0 and 63) the third combo box is the data associated with the command. this parameter can be irrele- vant, depending on the command. but it always needs to be filled out. if the command is a ? query ? command, the answer of the ballast addressed is displayed at the bottom of the window. (if the query is addressed to more then 1 ballast, an error occurred) example: in the following window, a push on the ? send ? button will put the light level of the ballast which has the short address 3 to a level of 11.
21/32 pc software features figure 13. light level window 4.6.2 manual command in this way the user has to fill the 2 bytes. refer to en60929 to know command codes. 4.7 run automated demo select the ? extras ? menu, item ? run automated demo ? . the following window appears: figure 14. automated demo configuration window
22/32 pc software features set the timer interval x and the last defined scene y. push the ? run ? button to start the demo. the master will go from scene 0 to scene y, and then restart from scene0, with an interval of x milliseconds between each. 4.8 save/load configuration select the ? file ? menu, item ? save ?? to save the actual configuration. select the ? file ? menu, item ? load ?? to load a configuration.
23/32 dali slave board features 5 dali slave board features 5.1 leds 5.1.1 green and red leds the green or red led on each slave board indicates if the board was addressed or not by the last command sent by the master. for example, if you select both ballasts before changing the light level, the green led will be switched on both slave boards. on the other hand, if you select only one ballast before sending a command, the green led will be switched only on one addressed slave, and the red led will be switched only on the slave that is not concerned by the command. 5.1.2 yellow led the yellow led displays the 1-10v output level corresponding to the light level. it is especially useful if you do not want to connect a ballast to the 1-10v output. 5.2 jumper this jumper allows you to measure the st7dali microcontroller current consumption (partic- ularly in halt mode).
24/32 dali slave board features 5.3 dali interface 5.4 st7dali software the software is compliant with annex e of the iec929/ en60929 standard. a tester performing all the tests defined in annex g of the standard has been used to validate the st7dali dali software. refer to an1601 for a description 5.5 halt mode the ST7DALI-EVAL evaluation board can be used to measure the extremely low consumption of the microcontroller in halt mode, by measuring the voltage on jumper 4.
25/32 dali slave board features 5.6 software description the dali slave software is described in an1601. source code and environment setup files for stvp7 are included in the cd-rom. the software can be compiled with both cosmic and metrowerks compilers. 5.7 reprogramming the microcontroller the microcontroller can be reprogrammed through the icp connector using: stmicroelectronics st7 flash stick softec indart st7f/d (www.softecmicro.com) 5.8 debugging the application the user can debug in two different ways: - emulation using a st7mdt10-emu3 (in this case, solder a dip20 to so20 device adaptor/ socket onto the board. see st7mdt10-emu3 probe user guide, section 3.6). - in circuit debugging with a softec indart st7f/d (www.softecmicro.com). 5.9 useful documentation related documents are: an1601 - software implementation for ST7DALI-EVAL an1756 - choosing a dali implementation strategy with st7dali an1900 - hardware implementation for ST7DALI-EVAL
26/32 appendix: board schematics and bills of material 6 appendix: board schematics and bills of material 6.1 dali gateway slave board 6.1.1 slave board schematics 6.1.2 slave board bill of material item qty reference value voltage % footprint description ref rs 1 2 c2, c3 1uf 20v 10% 3216 tantalium 262- 4327 2 4 c1,c4,c5,c6 100nf 50v 10% 0805 x7r 264- 4416 3 1 c7 22uf 20v 10% 6032 tantalium 262- 4636 4 2 r1, r2 2k49 1/4w 0.1% 0805 resistor 215- 2850 5 1 r6 3k3 1/4w 1% 0805 resistor 223- 0499 6 1 r3 82k5 1/4w 0.1% 0805 resistor 215- 4525 7 3 r4,r5,r12 10k 1/4w 1% 0805 resistor 223- 0562 8 2 r7,r8 0 1/4w 1% 0805 resistor 223- 0146 9 1 r9 11k 1/4w 0.1% 0805 resistor 215- 3544
27/32 appendix: board schematics and bills of material 10 1 r10 332r 1/4w 0.1% 0805 resistor 215- 1914 11 1 r11 4r7 1/4w 1% 0805 resistor 344- 6279 12 1 r13 1k21 1/4w 0.1% 0805 resistor 215- 2513 13 1 r14 3k16 1/4w 0.1% 0805 resistor 215- 2951 14 1 r15 150k 1/4w 1% 0805 resistor 223- 0714 15 1 r16 4k7 1/4w 1% 0805 resistor 223- 0528 16 1 ld1 hsms-c670he 0805 red led cms 2ma 429-546 17 1 ld2 hsmg-c670 0805 green led cms 2ma 429-568 18 1 ld3 lyt670 yellow led 428-830 19 1 d4 mb2s bridge diode 269-366 20 1 d5 bzx284c2v7 0805 zener 2.7v 216- 9599 21 1 d6 bas-16 sot23 diode 436- 7773 22 1 u2 ts271cd so8 operational amplifier stm 23 1 u3 st7fdalif2m 6 so20 micro stm 24 2 u4, u5 sfh6156-2 so4 optoisolator output npn transistor input dc 284- 1190 25 1 u6 ld2980abu50 tr sot89 ultra low drop voltage regula- tors stm 26 1 q1 bc817-25 sot23 npn transistor stm 27 1 j1 mc 1,5/4-g connect connector, pcb, header, 3.81mm pitch, 4 way 220- 4850 28 1 j2 mc 1,5/2-g connect connector, pcb, header, 3.81mm pitch, 2 way 220- 4822 29 1 j4 connect current sense 251- 8086 30 1 j3 connector connect connr, rect, header, idc, low profile box, straight mount, 10 way 120- 7230 item qty reference value voltage % footprint description ref rs 1
28/32 appendix: board schematics and bills of material 6.2 dali master board 6.2.1 master board schematics 31 1 connector connect connector, pcb, screw terminal, cable mount, 3.81mm pitch 2 way 220- 4658 32 1 connector connect jumper link 334-561 item qty reference value voltage % footprint description ref rs
29/32 appendix: board schematics and bills of material 6.2.2 master board bill of material item qty reference value voltage % foot print description ref rs 17 c1,c2,c3,c5,c6, c7,c13 100nf 50v 10% 0805 capacitor type x7r 264- 4416 2 1 c4 220nf 50v 10% 0805 capacitor type x7r 264- 4438 3 3 c8, c9, c11 1uf 20v 10% custom- er tantalium capacitor 262- 4327 4 1 c14 22uf 20 10% custom- er tantalium capacitor 262- 4636 5 2 r1,r5 0 1% 0805 resistor 223- 0146 6 1 r2 220 1/2w 5% rc05 resistor 132-337 7 2 r3,r4 10k 0.1w 1% 0805 resistor 223- 0562 8 1 r6 11k 0.1w 0.1% 0805 resistor 215- 3544 9 2 r7,r8 2k49 0.1w 0.1% 0805 resistor 215- 2850 10 1 r9 1k21 0.1w .1% 0805 resistor 215- 2513 11 1 r10 332r 0.1w .1% 0805 resistor 215- 1914 12 1 r11 4r7 0.1w .1% 0805 resistor 344- 6279 13 1 r12 3k16 0.1w .1% 0805 resistor 215- 2951 14 1 r15 4k7 0.1w 1% 0805 resistor 223- 0528 15 1 d1 bzx85c2 2 22v do41 diode zener 812-544 16 1 d2 mb2s 200v to- 269aa bridge smd 269-366 17 1 ld3 hsmg- c670 he 0805 red led smd 429-546 18 1 ld4 hsmg- c670 0805 green led smd 429-568 19 d5 bz84c2v 7 2.7v 0805 diode zener 216- 9599 20 1 d6,d7 bas16 sot23 diode 436- 7773
30/32 appendix: board schematics and bills of material 21 1 x1 csa16.0 0mxza04 0 murata 16mhz (or cst16.00mxwa0c3 or csacv16.00mxa040q or cstcv16.00mxa0h3q) 179- 3810 22 1 q1 bc817- 25 sot23 npn transistor stm 23 1 u1 st7202c d so16 rs-232 drivers and receivers stm 24 1 u2 st72c33 4j4b6 sdip42 micro stm 25 1 u3,u4 sfh6156 -2 so4 opto-isolator 284- 1190 26 1 u5 kf120bd t/ l78m15c dt dpak very low drop volt- age regulators stm 27 1 u6 ld2980a bu50tr sot89 ultra low drop volt- age regulators stm 28 1 j1 connec- tor connector, pcb, header, 3.81mm pitch, 4 way 220- 4850 29 1 j2 jack pcb socket 2.5mm 286- 8763 30 1 j4 connec- tor connr, rect, header, idc, low profile box, straight mount, 10 way 120- 7230 31 1 p1 rs232 rs 232 socket for pcb 457-484 32 4-wire cable, terminated with three connectors for cable mounting rs code 220-4670 item qty reference value voltage % foot print description ref rs
31/32 kit picture 7 kit picture
32/32 kit picture ? the present note which is for guidance only aims at providing customers with information regarding their products in order for them to save time. as a result, stmicroelectronics shall not be held liable for any direct, indirect or consequential damages with respect to any claims arising from the content of such a note and/or the use made by customers of the information contained herein in connection with their products. ? information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the co nsequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publicati on are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics prod ucts are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectro nics. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners ? 2004 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia ? belgium - brazil - canada - china ? czech republic - finland - france - germany - hong kong - india - israel - italy - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states www.st.com

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