[AKD4186-A] 2009/2 - 1 - general description AKD4186-A is the board for evaluation of the t ouch screen controller ak4186, which adopted the csp small package suitable for the cellular phone, the handheld game machine. since AKD4186-A has a touch-screen i/f and a digital i/o power supply input termi nal, it is easily connectabl e with a target system of low power/voltage drive. furthermore, since the analog input terminal is equipped analog voltage can also be measured. ordering guide AKD4186-A --- evaluation board for ak4186 (cable for connecting with printer port of ib m-at compatible pc and control software are packed with this. this control software does not operate on windows nt.) function ? i 2 c serial i/f ? touch-screen i/f (4-wire, 5-wire) ? analog input terminal ? digital i/o power supply terminal vdd agnd ain ifvdd dgnd ak4186ecb control port port1 option port2 touch panel i/f figure 1. akd4186 block diagram * circuit diagram and pcb layout are attached at the end of this manual. evaluation board rev.1 for ak4186 a kd4186- a
[AKD4186-A] 2009/2 - 2 - board outline chart outline chart figure 2. AKD4186-A outline chart comment (1) 4/5 wire touch screen connector for the touch screen connection. match the pins of the screen with these c onnecters and connect the touch screen. (2) ain-p, ain-n ain-p is an analog input pin. the signal of 0v~vdd can be input. ain-n must be left open. (3) vdd, agnd, dgnd, ifvdd connect power supply with these pins. (4) d1 led turns on when the ak4186 is powered up. (5) port1 control port. connect the bundled cable into this port. (6) port2 this port is for test. (7) jp1~jp8 jumper pins. please refer to the following sections for explanation. vdd ifvdd dgnd ain-n u3 jp2 u2 d1 j1 touch screen 1 2 3 4 5 6 7 8 ain-p agnd jp1 u1 port1 1 10 port2 1 10 jp8 jp5 jp4 jp3 jp7 ak4186 12 3 a b c d jp6
[AKD4186-A] 2009/2 - 3 - operation sequence (1) set up the power supply lines. set up the jumper pin. jp2 vdd (short) set up the power supply lines. name color voltage comments vdd red +1.6 +3.6v(typ1.8v) power supply for vdd of ak4186. ifvdd orange +1.2 +3.6v(typ3.3v) power supply for digital logic circuits. agnd black 0v analog gnd. dgnd black 0v digital gnd. table 1. set up of power supply lines * each supply line should be distributed from the power supply unit. (2) set up the evaluation mode and jumper pins. (see the followings.) (3) power on. run the control soft of the ak4186, and click the ?reset? button.
[AKD4186-A] 2009/2 - 4 - evaluation mode in case of evaluating a touch screen function of th e ak4186, it is necessary to connect the touch screen with j1 terminal. regarding pin assignment of j1, refer to table 2, table 3 or circuit diagram in this manual. as for the ak4186?s register definitions, refer to datasheet of the ak4186. applicable evaluation mode (1) 4-wire touch screen position, pressure m easurement and evaluation of a/d using the analog input terminal. (2) 5-wire touch screen position measurement. (1-1) 4-wire touch screen position and pressure measurement. 4-wire resistive touch screen must be connected to j1. the pin assignment of j1 is shown on table 2. no. name description 8 7 yn 4-wire touch screen y- 6 5 yp 4-wire touch screen y+ 4 3 xn 4-wire touch screen x- 2 1 xp 4-wire touch screen x+ table 2. j1 (8p header) pin assign set up the jumper pins. jp3 yp/bl 4-wire jp4 xn/wiper jp 5 xp/tr 5-wire 4 - wire 5 - wire 4 -wire 5 -wire the ?panel? of the ak4186?s control soft must be set to ?4-wire?. the a/d converter converts the voltage measured at the point where the screen is touched. (1-2) evaluation of a/d using the analog input terminal. the analog generator must be connected to ain-p terminal. set up the jumper pin. jp6 ain-p extxp extin extyp the ?screen? of the ak4186?s control soft must be set to ?4-wire?. the a/d converter converts the voltage measured at ain-p.
[AKD4186-A] 2009/2 - 5 - (2) 5-wire touch screen position measurement. 5-wire resistive touch screen should be connected to j1. the pin assignment of j1 is shown on table 3. no. name description 8 nc nothing is connected to this pin 7 nc nothing is connected to this pin 6 nc nothing is connected to this pin 5 bl 5-wire touch screen bottom-left 4 tl 5-wire touch screen top-left 3 wiper 5-wire touch screen wiper 2 br 5-wire touch screen bottom-right 1 tr 5-wire touch screen top-right table 3. j1 (8p header) pin assign set up the jumper pins. jp3 yp/bl jp4 xn/wiper jp5 xp/tr 4 - wire 5 - wire 4 -wire 5 -wire 4 - wire 5 - wire the ?panel? of the ak4186?s control soft should be set to ?5-wire?. the a/d converter converts the voltage measured at the point where the screen is touched.
[AKD4186-A] 2009/2 - 6 - other jumper pins set up main board [jp1] analog ground and digital ground open: separated. short: common. (the connector ?dgnd? can be open.) [jp6] (ain-p): selection of ain-p extxp: ain-p signal is input to xp/br pin. extyp: ain-p signal is input to yp/tr pin. extin: ain-p signal is input to in/wiper pin. [jp7] (ain-n): selection of ain-n extxn: ain-n signal is input to xn/tl pin. extyn: ain-n signal is input to yn/bl pin. [jp8] (cad0): sel ection of cad0 open: select cad0 pin to ?h? (cad0 bit = ?1?). short: select cad0 pin to ?l ? (cad0 bit = ?0?).
[AKD4186-A] 2009/2 - 7 - indication for led [d1]: led turns on when ak4186 power up. serial control the akd4186 can be connected via the printer port (parallel port) of ibm-at compatible pc. connect port1 (control port) with pc by 10 wire flat cable packed with the akd4186. connect sda(ack) sda control port akd4186 scl port1 10pin connector pc penirqn 10 wire flat cable figure 3. connect of 10 wire flat cable
[AKD4186-A] 2009/2 - 8 - touch screen input circuits jp3 yp/bl jp4 xn/wiper jp5 xp / tr jp7 ain-n jp6 ain-p ain-n t45-bl 1 ain-p t45-gr 1 r2 0 r3 0 xp yn/bl xn 4-wire 4-wire yp 5-wire yn 5-wire nc 5-wire nc wiper tl bl tr br 3 2 1 6 5 4 8 7 j1 xn / tl yp/tr 5-w ire xp / b r in/wper nc extxp extin exty p extxn exty n j1 touchscreen 1 2 3 4 5 6 7 8 4-w ire yp yn xp 4-wire xn figure 4. touch screen input circuits ? akemd assumes no responsibility for the troubl e when using the above circuit examples.
[AKD4186-A] 2009/2 - 9 - control software manual set-up of evaluation board and control software 1. set up the akd4186 board. 2. connect ibm-at compatible pc with akd4186 by 10-line type flat cable (packed with akd4186). take care of the direction of 10pin header. (please install the driver in the cd-rom when this control software is used on windows 2000/xp/vista. please refer ?installation manual of control software driver by akm device control software?. in case of windows95/98/me, this installation is not needed. in case of windows vista, please open the property of the control soft, a nd set the compatibility to ?windows xp ?. this control software does not operate on windows nt.) 3. turn on power supply for the akd4186 board. 4. insert the cd-rom labeled ?ak4186 evaluation kit? into the cd-rom drive. 5. access the cd-rom drive and double-click the icon of ?akd4186.exe? to set up the control program. 6. click the ?reset? on the top-left of the control soft window to reset the ak4186. 7. then evaluate accord ing to the follows.
[AKD4186-A] 2009/2 - 10 - explanation of main window when runs the control program, the window as shown in figure 5 opens. figure 5. control soft window
[AKD4186-A] 2009/2 - 11 - 1. initial setting [reset]: the ak4186 is reset. [cad0]: please make it fit to the setting of cad0 pin. [port address]: the setting of parallel port. (normally, this setting is not needed.) 2. single mode measurement ak4186 measures the position of 4-wire or 5-wire touch screen and the vo ltage of analog input. [panel]: select the touch screen interface. (panel bit) [1st measurement]: select last measur ement channel for the 1st measurement. [2nd measurement]: select last measurement channel for the 2nd measurement. [continuous]: set a/d conve rsion times and continuously outputs adc data. [repeat]: set measurement times of repeat. [single mode start]: star t the single measurement. 3. sequence mode measurement ak4186 measures the position of 4-wire or 5-wire touch screen and the vo ltage of analog input. [panel]: select the touch sc reen interface. (panel bit) [scan mode]: select the sequence mode. [adc count]: set the a/d c onversion count. (count bit) [interval time]: set the sampling interval time. (interval 2-0 bits) [repeat]: set the measurement times of repeat. [sequence mode start]: star t the sequence measurement. 4. show the measurement result (ad out section) [mean]: the average value of measurement result is shown. [max]: the maximum value of measurement result is shown. [min]: the minimum value of measurement result is shown. [sigma]: the standard deviation of measurement result is shown. 5. show the measurement result of pen pressure (for 4-wire touch screen) in case of selecting the scan mode to ?x y z1 z2? at the sequence measurem ent mode, the measurement results of pen pressure are shown. 6. register setup [add 00h]: setup command. [add 01h]: status of sequence mode. [write]: write the register data after setting the register bits. [read]: read the register data. *please refer to the ak4186 datasheet about register command functions.
[AKD4186-A] 2009/2 - 12 - explanation of draw function when clicks the ?draw mode?, the window as shown in figure 6 opens. figure 6. draw function window 1. measurement mode [averaging 6 data]: count bit is set to ?0? (6 times). [averaging 10 data]: count bit is set to ?1? (10 times). [software algorithm]: predict the movement before and after the measurement of the data based on averaging (6 data), and invalidate the data out of range. 2. panel sensitivity please adjust panel sensitivity regarding to the touch screen. 3. operation [start]: start scanning of the touch screen. the track that you drew on touch screen is shown on the scren. please adjust screen sensitivity to get smooth tracking. the screen will be cleared when [start] button is clicked again. [paint/locate]: when drawing on a touch screen, a tr ack is shown on the screen if paint is active. when drawing on a touch screen, a mouse cursor moves on the screen if locate is active. (shortcut key: ctrl) [stop]: stop the draw function. [pen color]: pen color using is shown. select the color from a color panel on the touch screen to change the pen color. [close]: close the draw function window. 4. record a painting track can be recorded. after clicking the [start] button, pen touch is detected and a recording starts. if pen up is detected, the recording finishes. the recorded file is saved as a time stamp name, without overwrite.
[AKD4186-A] 2009/2 - 13 - trouble shooting 1. application error is occurred and doesn?t start up if the operating system is windows 2000/xp, please install akm port driver first. 2. as click [start] button, ?device send nak!? is shown that can not have a measure. (can not write control command to ak4186.) please set the port address to your pc platform environment. check the connections of the evaluation board and ensure power up of the ak4186. 3. the mean, max, min value doesn't change wherever the pen pushes down on the screen. there is a possibility of the trouble of the contact of the relay connector that connects the touch screen. please open jp3, 4, and 5 on the evaluation board, measure screen seat resistance, and check the resistance. generally, the screen seat resistance is hundreds of ? . there is a possibility that the touc h screen is not correctly connected if the value is over thousands of k ? . please connect the relay connector a nd check the resistance value again.
[AKD4186-A] 2009/2 - 14 - revision history date (yy/mm/dd) manual revision board revision reason page contents 08/10/08 km095900 0 fi rst edition 08/02/02 km095901 1 device rev. changed ak4186: rev.a rev.b important notice z these products and their specifications are subject to change without notice. when you consider any use or application of these produc ts, please make inquiries the sales office of asahi kasei emd corporation (akemd) or authorized distributors as to current status of the products. z akemd assumes no liability for infringement of any patent, intellectual property, or other rights in the application or use of any information contained herein. z any export of these products, or devices or systems containi ng them, may require an export license or other official approval under the law and regulations of the country of e xport pertaining to customs and tariffs, currency exchange, or strategic materials. z akemd products are neither intended nor au thorized for use as critical components note1) in any safety, life support, or other hazard related device or system note2) , and akemd assumes no responsibility for such use, except for the use approved with the express written consent by representative director of akemd. as used here: note1) a critical component is one whose failure to func tion or perform may reasonably be expected to result, whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and which must therefore meet very high standards of performance and reliability. note2) a hazard related device or system is one designed or intended for life support or maintenance of safety or for applications in medicine, aerospace, nuclear energy, or other fi elds, in which its failure to function or perform may reasonably be expected to result in loss of life or in significant injury or damage to person or property. z it is the responsibility of the buyer or distributor of akemd pr oducts, who distributes, dis poses of, or otherwise places the product with a third party, to notify such third party in advance of the above cont ent and conditions, and the buyer or distributor agrees to assume any and all re sponsibility and liability for and hold akemd harmless from any and all claims arising from the use of said product in the absence of such notification.
5 5 4 4 3 3 2 2 1 1 d d c c b b a a ifvdd vdd vdd ifvdd vdd ifvdd title size document number rev date: sheet of main_12csp 0 AKD4186-A a3 11 wednesday, july 30, 2008 title size document number rev date: sheet of main_12csp 0 AKD4186-A a3 11 wednesday, july 30, 2008 title size document number rev date: sheet of main_12csp 0 AKD4186-A a3 11 wednesday, july 30, 2008 gnd scl penirqn sdaoi scl sda(ack) sda penirqn test 4-wire 4-wire 4-wire 5-wire 5-wire 5-wire extxp extyp extin extxn extyn gnd sdaio cad0 4-wire yn yp xp xn 5-wire bl tl wiper br tr 1 2 3 4 5 6 7 8 j1 nc nc nc xp xn yp yn c4 0.001u c4 0.001u jp8 cad0 jp8 cad0 ifvdd t45_or ifvdd t45_or 1 c7 0.001u c7 0.001u r20 51 r20 51 jp2 vdd jp2 vdd u1 ak4186ecb u1 ak4186ecb in/wiper a1 vdd a2 xp/br a3 penirqn b1 cad0 b2 yp/tr b3 sda c1 test c2 xn/tl c3 scl d1 vss d2 yn/bl d3 cn4 7pin_2 cn4 7pin_2 1 2 3 4 5 6 7 r6 51 r6 51 jp6 ain-p jp6 ain-p r10 1.5k r10 1.5k r3 0 r3 0 jp3 yp/bl jp3 yp/bl r8 51 r8 51 + c2 10u + c2 10u r2 0 r2 0 j1 touchscreen j1 touchscreen 1 2 3 4 5 6 7 8 port1 control port port1 control port 1 3 5 7 9 10 8 6 4 2 cn2 7pin_2 cn2 7pin_2 1 2 3 4 5 6 7 vdd t45_red vdd t45_red 1 r13 51 r13 51 cn1 7pin_1 cn1 7pin_1 1 2 3 4 5 6 7 74lvc07 u2 74lvc07 u2 1a 1 2a 3 3a 5 4a 9 5a 11 6a 13 gnd 7 1y 2 2y 4 3y 6 4y 8 5y 10 6y 12 vcc 14 jp4 xn/wiper jp4 xn/wiper c3 0.001u c3 0.001u tp6 cad0 tp6 cad0 tp5 yn/bl tp5 yn/bl r5 51 r5 51 + c12 47u + c12 47u r12 1.5k r12 1.5k r14 51 r14 51 agnd t45_bk agnd t45_bk 1 r17 47k r17 47k r1 1k r1 1k r4 51 r4 51 c9 0.1u c9 0.1u jp5 xp/tr jp5 xp/tr tp10 test tp10 test tp9 scl tp9 scl port2 option port2 option 1 3 5 7 9 10 8 6 4 2 r18 47k r18 47k dgnd t45_bk dgnd t45_bk 1 tp4 xn/tl tp4 xn/tl tp8 sda tp8 sda tp1 in/wiper tp1 in/wiper c8 0.1u c8 0.1u d1 led(red) d1 led(red) 1 2 jp1 gnd jp1 gnd r9 47k r9 47k u3 74avc4t245 u3 74avc4t245 1a1 4 1a2 5 2a2 7 1oe 15 1b1 13 1b2 12 2b1 11 2b2 10 gnd 9 2a1 6 1dir 2 vccb 16 vcca 1 gnd 8 2dir 3 2oe 14 jp7 ain-n jp7 ain-n ain-p t45-gr ain-p t45-gr 1 r19 51 r19 51 + c11 47u + c11 47u r11 1.5k r11 1.5k r7 51 r7 51 tp3 yp/tr tp3 yp/tr c1 0.1u c1 0.1u cn3 7pin cn3 7pin 1 2 3 4 5 6 7 r16 47k r16 47k tp7 penirqn tp7 penirqn c6 0.001u c6 0.001u c10 0.1u c10 0.1u r15 51 r15 51 ain-n t45-bl ain-n t45-bl 1 tp2 xp/br tp2 xp/br c5 0.001u c5 0.001u - 15 -
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