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| general description the USBTO232 is an adapter board that converts a pc? usb port into a standard com port. a com port is also known as the standard serial port that uses recommended standard 232 (rs-232). the USBTO232 is included with selected maxim ev kits and ev systems that were originally designed for the pc com port and later updated to also support the usb port. data sheets for ev kits and ev systems that can use the USBTO232 have been updated to reflect compatibility and also provide ordering information. use of the USBTO232 in applications other than those ev kits specified by maxim is not supported. important: before using the USBTO232, see the quick start section of this data sheet to correctly install the usb driver for the appropriate windows operating system. features usb powered usb driver for windows 98se/2000/xp operating systems usb and i/o power led indicators two gpio led indicators usb cable included 8-pin signal header proven pcb layout fully assembled and tested USBTO232 usb-to-com port adapter board user guide ________________________________________________________________ maxim integrated products 1 ordering information 19-0677; rev 0; 11/06 for pricing, delivery, and ordering information, please contact maxim/dallas direct! at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. + denotes lead-free and rohs compliance. part pc interface operating systems supported USBTO232+ usb windows 98se/2000/xp component list windows is a registered trademark of microsoft corp. designation qty description c1 1 0.01? ?0%, 50v x7r ceramic capacitor (0603) tdk c1608x7r1h103k c2, c3 2 47pf 5%, 50v cog ceramic capacitors (0603) tdk c1608c0g1h470j c4?8, c11, c12 7 0.1? 10%, 16v x7r ceramic capacitors (0603) tdk c1608x7r1c104k c9 1 4.7? 10%, 6.3v x5r ceramic capacitor (0603) tdk c1608x5r0j475k c10 1 1? 10%, 6.3v x5r ceramic capacitor (0603) tdk c1608x5r0j105k d1 1 red led (0603) panasonic lnj208r8ara d2 1 green led (0603) stanley electric bg1111c-tr panasonic lnj314g8tra fb1 1 40 ? @ 100mhz, 1.5a ferrite bead (0805) steward mi0805k400r-10 h1 1 8-pin header ju1, ju2, ju3 3 3-pin headers designation qty description p1 1 usb type b right-angle female receptacle connector assmann au-y1007-r p2 1 short db9 right-angle male receptacle connector (without cable-locking screws) r1, r2 2 270 ? 5% resistors (0603) (use lead-free parts only) u1 1 usb-to-uart converter ftdi ft232rl (28-pin ssop) u2 1 max213eeai+ (28-pin ssop) 3 shunts 1 USBTO232+ pcb 1 usb high-speed a-to-b 6ft cable note: indicate the maxim ev kit that you are using when con- tacting this component supplier. supplier phone website tdk 847-803-6100 www.component.tdk.com component supplier
USBTO232 2 _______________________________________________________________________________________ quick start the following instructions are for installing usb drivers and the ev kit software. once the usb drivers and ev kit software have been installed, refer to the quick start section of the appropriate ev kit data sheet for ev kit- specific instructions. recommended equipment ? USBTO232 board (usb cable included) ? maxim ev kit (or ev system) with a com port pc connection ? corresponding ev kit data sheet ? user-supplied pc with a usb port note: in the following sections, software-related items are identified by bolding. text in bold refers to items directly from the ev kit software. text in bold and underlined refers to items from the windows 98se/2000/xp operating system. procedure 1) visit the maxim website (www.maxim-ic.com/evkit- software) to download the latest version of the ev kit software that supports usb. save the ev kit soft- ware to a temporary folder and uncompress the file, if it is a .zip file. 2) install the ev kit software on your computer by run- ning the install.exe program inside the tempo- rary folder. the program files are copied to c:\program files\maxxxxxx and icons are creat- ed in the windows start | programs menu. 3) uncompress the usb driver file copied into c:\program files\maxxxxxx after the software is installed. if you are using windows 98se, uncom- press the usb_driver_98_me_v1.09.zip file. if you are using windows 2000/xp, uncompress the usb_driver_xp_2k_v2.00.zip file. uncompress the contents of the .zip file into c:\program files\maxxxxxx . 4) verify that the following USBTO232 jumpers are in the default positions: ju1: (1-2) ju2: (2-3) ju3: (2-3) 5) connect the included usb cable from the pc? usb port (type a) to the type b usb connector on the USBTO232 board. 6) verify that the red vcc power led (d1) lights up. also verify that the green vccio power led (d2) lights up. 7) go to the appropriate usb driver installation sec- tion in this data sheet for the version of windows you are using and return to step 8 when finished. for example, if you are using windows xp, go to the windows xp usb driver installation section. windows xp: page 3 windows 2000: page 11 windows 98se: page 25 8) connect the USBTO232 board to the ev kit (or ev system) by connecting the male db9 connector on the USBTO232 board to the female db9 connector on the ev kit. 9) refer to the quick start section of the appropriate ev kit data sheet for further ev kit-specific instructions. detailed description of hardware the USBTO232 is an adapter board that converts a pc? usb port into a standard com port. the USBTO232 board has three configurable jumpers: ju1, ju2, and ju3. jumper ju1 is the i/o supply selection (see table 1), jumper ju2 is the usb power-supply indicator (see table 2), and jumper ju3 is the 3.3v power-supply indicator (see table 3). table 1. i/o supply selection (vccio) * default position. table 2. usb power-supply indicator (vcc?1) * default position. table 3. 3.3v power-supply indicator (vcc30?2) * default position. jumper shunt position description 1-2* vccio = vcc = 5v ju1 2-3 vccio = vcc30 = 3.3v jumper shunt position description 1-2 general-purpose led connected to cbus0 ju2 2-3* indicates usb power present when red led (d1) is lit jumper shunt position description 1-2 general-purpose led connected to cbus1 ju3 2-3* indicates regulated 3.3v power present when green led (d2) is lit usb-to-com port adapter board user guide USBTO232 usb-to-com port adapter board user guide _______________________________________________________________________________________ 3 windows xp usb driver installation 1) once the USBTO232 board is connected to the pc for the first time in windows xp, a found new hardware wizard | welcome window appears, as shown in figure 1. choose the no, not this time selection and press the next button to get started. if you do not see a window that is similar to the one described above after 30 seconds, remove the usb cable from the USBTO232 board and reconnect it. administrator privileges are required to install the usb device driver on windows 2000/xp. figure 1. windows xp: found new hardware wizard |welcome window USBTO232 2) a found new hardware wizard | ftdi ft8u2xx device window (figure 2) appears next. this win- dow asks what do you want the wizard to do? . choose the install from a list or specific location (advanced) option and press the next button. figure 2. windows xp: found new hardware wizard | ftdi ft8u2xx device window usb-to-com port adapter board user guide 4 _______________________________________________________________________________________ _______________________________________________________________________________________ 5 3) at the found new hardware wizard | search options window (figure 3), choose the search for the best driver in these locations option and check the include this location in the search checkbox. press the browse button and navigate to the path: c:\program files\maxxxxxx (where xxxxx represents the maxim ic part number on the ev kit being evaluated). press the next button when finished. USBTO232 usb-to-com port adapter board user guide figure 3. windows xp: found new hardware wizard | search options window USBTO232 usb-to-com port adapter board user guide 6 _______________________________________________________________________________________ 4) the found new hardware wizard | complete win- dow appears (figure 4). press the finish button. figure 4. windows xp: found new hardware wizard | complete window USBTO232 usb-to-com port adapter board user guide _______________________________________________________________________________________ 7 5) a found new hardware wizard | welcome win- dow appears again (figure 5). choose the no, not this time selection and press the next button. figure 5. windows xp: found new hardware wizard | welcome window USBTO232 6) the next window is the found new hardware wizard | usb serial port window (figure 6). this window asks what do you want the wizard to do? . choose the install from a list or specific location (advanced) option and press the next button. usb-to-com port adapter board user guide 8 _______________________________________________________________________________________ figure 6. windows xp: found new hardware wizard | usb serial port window 7) at the found new hardware wizard | search options window (figure 7), choose the search for the best driver in these locations option and check the include this location in the search checkbox. press the browse button and navigate to the path: c:\program files\maxxxxxx . press the next button when finished. USBTO232 usb-to-com port adapter board user guide _______________________________________________________________________________________ 9 figure 7. windows xp: found new hardware wizard | search options window USBTO232 8) the next window is the found new hardware wizard | complete window (figure 8). press the finish button. 9) when finished, return to step 8 of the USBTO232 quick start section. usb-to-com port adapter board user guide 10 ______________________________________________________________________________________ figure 8. windows xp: found new hardware wizard | complete window windows 2000 usb driver installation 1) once the USBTO232 board is connected to the pc for the first time in windows 2000, a found new hardware window appears, as shown in figure 9. USBTO232 usb-to-com port adapter board user guide ______________________________________________________________________________________ 11 figure 9. windows 2000: found new hardware window USBTO232 2) a found new hardware wizard | welcome window then appears (figure 10). press the next button. usb-to-com port adapter board user guide 12 ______________________________________________________________________________________ figure 10. windows 2000: found new hardware wizard | welcome window 3) at the found new hardware wizard | install hardware device drivers window (figure 11), choose search for a suitable driver for my device (recommended) and press the next button when finished. USBTO232 usb-to-com port adapter board user guide ______________________________________________________________________________________ 13 figure 11. windows 2000: found new hardware wizard | install hardware device drivers window USBTO232 4) the found new hardware wizard | locate driver files window appears next (figure 12). check the specify a location checkbox and press the next button when finished. usb-to-com port adapter board user guide 14 ______________________________________________________________________________________ figure 12. windows 2000: found new hardware wizard | locate driver files window 5) the next window is the found new hardware wizard | path window (figure 13). press the browse button and choose the path c:\program files\maxxxxxx . press the ok button when finished. USBTO232 usb-to-com port adapter board user guide ______________________________________________________________________________________ 15 figure 13. windows 2000: found new hardware wizard | path window USBTO232 6) the found new hardware wizard | driver files search results window is shown in figure 14. press the next button after the wizard finds the driver. usb-to-com port adapter board user guide 16 ______________________________________________________________________________________ figure 14. windows 2000: found new hardware wizard | driver files search results window 7) at the found new hardware wizard | complete window (figure 15), press the finish button. USBTO232 usb-to-com port adapter board user guide ______________________________________________________________________________________ 17 figure 15. windows 2000: found new hardware wizard | complete window USBTO232 8) a found new hardware window appears for the usb serial port, as shown in figure 16. usb-to-com port adapter board user guide 18 ______________________________________________________________________________________ figure 16. windows 2000: found new hardware window 9) when the found new hardware wizard | welcome window appears (figure 17), press the next button. USBTO232 usb-to-com port adapter board user guide ______________________________________________________________________________________ 19 figure 17. windows 2000: found new hardware wizard | welcome window USBTO232 10) at the found new hardware wizard | install hardware device drivers window (figure 18), choose search for a suitable driver for my device (recommended) and press the next button when finished. usb-to-com port adapter board user guide 20 ______________________________________________________________________________________ figure 18. windows 2000: found new hardware wizard | install hardware device drivers window 11) the found new hardware wizard | locate driver files window (figure 19) appears. check the specify a location checkbox and press the next button when finished. USBTO232 usb-to-com port adapter board user guide ______________________________________________________________________________________ 21 figure 19. windows 2000: found new hardware wizard | locate driver files window USBTO232 12) at the found new hardware wizard | path win- dow (figure 20), press the browse button and choose the path c:\program files\maxxxxxx . press the ok button when finished. usb-to-com port adapter board user guide 22 ______________________________________________________________________________________ figure 20. windows 2000: found new hardware wizard | path window 13) the found new hardware wizard | driver files search results window ( figure 21) appears. press the next button after the wizard finds the driver. USBTO232 usb-to-com port adapter board user guide ______________________________________________________________________________________ 23 figure 21. windows 2000: found new hardware wizard | driver files search results window USBTO232 14) the next window is the found new hardware wizard | complete window (figure 22). press the finish button. 15) when finished, return to step 8 of the USBTO232 quick start section. usb-to-com port adapter board user guide 24 ______________________________________________________________________________________ figure 22. windows 2000: found new hardware wizard | complete window windows 98se usb driver installation 1) once the USBTO232 board is connected to the pc for the first time in windows 98se, an add new hardware wizard | start window appears, as shown in figure 23. press the next button to get started. USBTO232 usb-to-com port adapter board user guide ______________________________________________________________________________________ 25 figure 23. windows 98se: add new hardware wizard | start window USBTO232 2) an add new hardware wizard | options window appears next (figure 24). choose the search for the best driver for your device (recommended) option and press the next button when finished. usb-to-com port adapter board user guide 26 ______________________________________________________________________________________ figure 24. windows 98se: add new hardware wizard | options window 3) at the add new hardware wizard | specify location window (figure 25), check the specify a location checkbox and press the browse button. choose the path c:\program files\maxxxxxx\ r10906 (where xxxxx represents the maxim ic part number on the ev kit being evaluated). press the next button when finished. USBTO232 usb-to-com port adapter board user guide ______________________________________________________________________________________ 27 figure 25. windows 98se: add new hardware wizard | specify location window USBTO232 4) the add new hardware wizard | search window appears (figure 26). press the next button once the driver has been located. usb-to-com port adapter board user guide 28 ______________________________________________________________________________________ figure 26. windows 98se: add new hardware wizard | search window 5) the next window is the add new hardware wizard | complete window (figure 27). press the finish button to complete the driver installation. 6) when finished, return to step 8 of the USBTO232 quick start section. USBTO232 usb-to-com port adapter board user guide ______________________________________________________________________________________ 29 figure 27. windows 98se: add new hardware wizard | complete window USBTO232 usb-to-com port adapter board user guide 30 ______________________________________________________________________________________ figure 28. USBTO232 schematic max213 p1 vcc vcc vcc30 5 3 1 9 20 23 22 13 14 17 19 vcci0 u1 ft232rl u2 usbdm usbdp n.c. n.c. osci osco cbus4 dcd# ri# cts# dtr# agnd gnd 25 7182126 gnd gnd test sleep# dcd# ri# cts# dtr# 12 10 6 11 2 ju1 1 2 4 3 fb1 c1 0.01 f c2 47pf c11 0.1 f c3 47pf p1-1 p1-2 16 15 8 24 27 28 p1-3 p1-4 usb type b h1 header 8 pin c7 0.1 f c6 0.1 f c10 1 f c4 0.1 f c5 0.1 f h1-1 h1-2 h1-3 h1-4 h1-5 h1-6 h1-7 h1-8 vcc vcc c8 0.1 f c9 4.7 f t3 out 27 cts vcc vcc vcc v cc cts# sleep# t1 out t2 out r2 in dtr txdata rts rxdata 1 2 3 4 r2 out 5 t2 in 6 t1 in 7 r1 out 8 r3 in 28 t4 out 26 r3 out 23 r4 in 24 en 21 t4 in 20 t3 in 22 r4 out 25 shdn r1 in dsr 9 11 13 gnd 10 c1- 14 c1+ v+ 12 ri ri# dtr# 19 r5 out 18 r5 in dcd# dcd cbus0 17 v- 16 c2- 15 c2+ ju2 1 2 3 d1 r1 270 ? vcc30 ju3 1 2 3 d2 r2 270 ? reset# reset# rxd rts# txd dsr# vcc cbus0 cbus1 cbus2 cbus3 3v3out c12 0.1 f vcc30 cbus3 cbus2 cbus1 p2 db9 type dte p2-1 p2-2 p2-3 p2-4 p2-5 p2-6 p2-7 p2-8 p2-9 cbus0 cbus1 dcd rxdata txdata dtr dsr rts cts ri USBTO232 usb-to-com port adapter board user guide maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ____________________ 31 2006 maxim integrated products is a registered trademark of maxim integrated products, inc. cardenas figure 29. USBTO232 component placement guide?omponent side figure 30. USBTO232 pcb layout?omponent side figure 31. USBTO232 pcb layout?older side |
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