Philips LPC2138 User's Manual
Contents
1. connects GPIO P0 21 to the LCD enable pin J18 LCD R W Signal connects GPIO P0 22 to the LCD R W pin J19 Analog Output Enable connects DA converter output GPIO P0 25 to the OP amplifier J20 Analog Input Enable connects the TRIM potentiometer to the analog input ADO 0 GPIO P0 27 P21 16 Pin LCD Connector see connectors J22 LCD LED Backlight Enable J22 is set to turn on LCD backlight J25 bottom side Startup mode populated on the bottom side of the target board J25 connects either a pull up USER mode or a pull down BOOT loader mode to P0 14 Default set in position USER User mode J16 must be removed when setting J25 in position BOOT otherwise J25 setting is not effective Jumper pin 1 is marked with a white square on the ITLPC2138 PCB If pin 1 cannot be located directly from the ITLPC2138 please use Figure 2 for assistance Note Don t change jumper settings while the target board is supplied with power iSYSTEM March 2007 6 13 Connectors DB9 male connector UART1 P35 The serial port is configured as a standard RS232 interface with RTS CTS control Cross female to female cable is needed for connection with PC computer COM port 16 pin LCD connector P21 14 12 19 15 0000000000000000 15 11 987654321 16 Top View Pin Assignment for Crystal Clear technology CMC216x04 or EDT EW162B0GLY LCD vaa Supply Terminal vo Power Supply for LOD Driver_ RS Register Sel2. since it s powered from the PC USB port An external ARM7TDMI S debugger including e g ETM support can be used for debugging as an alternative to the on board integrated debugger Description View of the ITLPC2138 o o 3 2 4 o mum Ji ii mum J2 J22 a M um LCD CMC216X04 al al OU wl dd Figure 2 Top View of the ITLPC2138 O SYSTEM March 2007 3 13 Block Diagram BATT RTC power supply 5V from USB USB Figure 3 ITLPC2138 Block diagram Notes 1 The board provides 16 pin connector for the optional LCD display type CMC216x04 or EW162BOGLY checkout backlight LED polarity which is not included in the package SYSTEM March 2007 4 13 Components List Name Description Pa P5 P11 RTC power supply input 3 3V P12 P13 P21 P31 P32 P33 P34 USB connector integrated debugger P35 DB9 connector serial port UART1 J1 J2 J7 J10 J15 J20 Jumpers J22 J25 LDO LD3 User LEDs LD11 Power LED 5V LD12 Power LED 3 3V TO T3 Push buttons Reset T4 Reset button TR2 Trimmer potentiometer R25 R26 Resistors for adjusting LCD contrast See schematic for details Power Supply The target board is powered from the PC USB port through which winIDEA IDE running on a PC connects to the on board integrated debugger Connection is made using a standard USB cable Battery power supply for RTC can be optionally connected to P11 see P11 des
3. 1 1 22 0 5 0 13 0 21 0 30 1 21 0 4 0 12 0 20 0 29 1 20 0 3 0 11 0 19 0 28 1 19 0 2 0 10 0 18 0 27 1 18 GND 0 1 0 9 0 17 0 26 1 17 1 25 0 0 08 916 025 1 16 1 24 VCC vcc VCC vcc vcc vcc 28 as ao Figure 4 Expansion connectors All CPU signals are available on the expansion connectors which are standard connectors with a 2 54 mm raster iSYSTEM March 2007 9 13 Schematic Note On board integrated debugger is not part of the schematic 2 m E E E 3 ES CH je ib le Pe Poes Pe 16 P0 25 n Pee Pees Pe 17 PQ 26 N Pe 02 Pe 18 Pe 18 P0 27 E Ep P812 Er P029 Peas m PAIS 2 pe2 p 30 Pe 86 i P8 14 Pe22 PQ 31 0 27 S Pets g Pen 2 lt a J8 10k 1 PC2138 P1 26 gt P1 16 AP 1 16 TRACEPKTO PO 0 TxDO PWM1 Poego R36 21 17 2 AP1 17 1RACEPKT P 1 R lt DO PWMS EINT Pat P1 18 3 P 1 1 8 TRACEPKT2 P 2 SCLO CAPC C Pa 02 47 10k P1 19 2 P S TRACEPKT3 PO 3 SDAB MATO B EINI 22 P6 03 p120 69 P1 20 24 P 20 TRACESYNC PO 4 SCKQ CAPQ 1 AD0 2 Pas A P1 21 IP1 21 PIPESTATO P8 5 MISOQ MATO 1 ADI 52 Pees R37 P1 22 3 2 P 22 PIPESTAT P 6 NOSI8 CAPO 2 AD 2 P0 06 P1 23 5 pi 23 PIPESTAT2 PO 7 SSELO PWM2 ENT Pa07 P1 24 IP 1 24 TRACECLK P8 B TxD1 PWMA AD1 1 55 Pe es8 P1 25 3 5 P1 25 xniNo P8 9 RxD1 PWM6 EINT3 F829 P126 P1 26 RTCK PQ 18 RTS CAP1 0 AD P0 18 CPU TDO a 1P1 27 100 P9 11 CTS11 CAP1 1 S P 11 CPU TO P 1 28 TO P 12 0SR11 MATI O A Pa 12 CPU TCK
4. IP1 29 TCK P0 13 DTRTT MAT 1 A P 13 CPUT TMS P1 30 TMS 8 14 DCD11 EINT1 SO P2 14 10k CPU TRST IP1 31 TRST PQ 15 RI1 1 EINT2 AD1 P 15 6 re TS PO 16 EINTO MATO 2 C P8 16 R46 ae vss F0 17 CAP1 2 SCK1 MA P2 17 R47 5 vss P 18 CAP 1 5 MISO ME2 P8 18 TRACECLK L 3 P1 24 i vss PB 19 MAT1 2 MOSI1 CH2S Pa 19 47E a vss PO 20 MAT1 3 SSEL1 E E 20 vss P9 21 PWMS AD1 5 CAP P221 P0 22 AD1 7 CAPO 0 M 2 P222 mejo paz Pa23 2 1av3 421400 PQ 25 00 4 Acut 9 Pa25 e E P0 25 100 5 9 P0 26 Vret P2 27 AD2 O CAPS 1 M I F227 a al P0 28 AD0 1 CAPO 2 413 pQ 28 lol vom P0 29 4D0 2 CAPQ S M P029 RIC BAIT Jie VSSA PO 38 AD 3 EINTS CA 12 P 8 38 1 TM Pas PAJ E A 9n es reset 22 d OR 42 ect Xr i O i e 5 IRTXC2 Xr 2 8 wo ON a xt P1 12MHz 36 Sr ca c GND gal lw E 10 13 iSYSTEM March 2007 Use of the on board integrated debugger Follow below instructions in order to get a sample application running with out of the box experience All jumpers are set in the default position during the final tests in the manufacturing If winIDEA 2006 CD is not part of the package please obtain winIDEA 2006 setup from your local iSYSTEM office or from www isystem com e Install winIDEA 2006 IDE full setup on a PC e Verify jumpers J15 J20 see Jumpers description for their default position e Verify that jumper J8 is s
5. X 1 SY M T E M Solutions for Embedded Systems Development V1 7 User s Guide Philips NXP LPC2138 Target Board Ordering code ITLPC2138 Dimensions 100x96mm Figure 1 ITLPC2138FE Target Board iSYSTEM March 2007 1 13 Contents COMES rodada dien Unde Rodeo eb dude VA ER 2 INT OCUCTION une ee 3 Descriptio sas sss T see 3 View Of the TEEPC2136 iio a o P rt Ree T REI ORDRE Re ERREUR 3 Block DIGS TOI mE 4 Components List aia ico M eaa thugs sakes chou REED AM GR DR E eb ER RR 5 Power Supply i e Mee seach e epe e Er e e a Re e NE E RES 5 Jumper amp Connector Descriptions det arret HERE Ro e Io eg repe de eee aae 6 Guam E eee Toco 7 SOM ia a 10 Use of the on board integrated debugger eecccceeeeeeeeeeeeeeeeeeeeeeeeeneeneneaeeeeeneenneneeees 11 Use of an external debugger een enn enint dana n Eie emen 12 A A 13 O SYSTEM March 2007 2 13 Introduction NXP LPC2138 Target Board is an evaluation and a development system for NXP ARM7TDMI S based LPC2138 microcontroller The ITLPC2138 package consists of a USB cable and a target board populated with NXP LPC2138 CPU minimum peripherals JTAG debug connector ETM trace connector and an on board integrated iSYSTEM debugger The user can write and debug the application using the on board integrated iSYSTEM debugger which connects to the PC through the USB connection The board requires no external power supply
6. cription for more details iSYSTEM March 2007 5 13 Jumper amp Connector Descriptions J1 J2 LCD LED Backlight Polarity If J1 and J2 is set in position 1 2 then LCD pin15 is connected to 5V and pinl6 is connected to GND If J1 and J2 is set in position 2 3 then pin15 is connected to GND and pin16 is connected to 5V Default set in position 1 2 J7 Trace Port Enable J7 is set to enable pins P1 25 16 to operate as ETM Trace port after reset Default not set J8 Debug Port Enable J8 is set to enable pins P1 31 26 to operate as a JTAG Debug port after reset Default is set J9 Debug Mode J9 selects whether iSYSTEM on board integrated USB JTAG debugger is used or an external debug tool Default set in position 1 2 J10 RTC Power Supply Selector J10 connects Vbat pin of LPC2138 to the main 3 3V P11 RTC Power supply PCB terminal providing connection for battery When battery power supply applied to P11 is used J10 must be open P12 Manufacturing purpose connections P13 Analog Output P13 is analog output from OP amplifier which connects to output of the DA converter J15 User LEDs Enable enables the LED driver connecting the on board LEDs to GPIO P0 4 PO 7 J16 User Buttons Enable enables buttons driver connecting the on board buttons to GPIO P0 12 P0 15 Pushing the button generates a low signal If J16 is set the CPU will not start in Boot loader mode see J25 description J17 LCD Enable Signal
7. e RST CPU reset pin If a low level is detected ISP command handler starts and takes over control of the CPU after reset If there is no request for the ISP command handler execution a high level detected a search is made for a valid user program If a valid user program is found then the execution control is transferred to it Refer to CPU User Manual for more details on CPU startup mode Normally jumper J25 is set for User mode by default Boot loader mode should be normally selected only for troubleshooting or when the user explicitly wants to use Boot loader mode J16 must be removed when Boot loader mode is selected see J16 description for more details There was a case where the code was programmed in the flash which disabled the JTAG debug port shortly after reset Due to the NXP implementation the debugger cannot take over control over the CPU immediately after reset but a part of code is executed before the CPU can be stopped by the debugger In this particular case the application disabled JTAG port before the debugger took control over the CPU and the debugger could not connect to the CPU at all Thereby note that if the debugger cannot connect to the CPU winIDEA reports Cannot stop CPU it may be due to bad program in the flash In this case Boot loader mode has to be selected in order for the CPU to start executing ISP command handler in which the debugger can always stop the program and take over control over
8. ect Signal E Enable Signal 7 DB0 Data Bus Line Notused OBI Data Bus Line Notused DB2 Data Bus Line Not used 10 DB3 Data Bus Line Not used 11 DB4 DaaBuslie 12 DBS DataBusline 13 DB6 Data BusLine 14 DB7 DaaBuslme I BL LED Backlight Power Supply 16 BL LEDBackightGrund Verify polarity of LED backlight on your LCD display ND dd O S E BO B1 B2 B3 B4 B5 B6 B7 L T V V R R D D D D D D D D B B iSYSTEM March 2007 7 3 20 pin JTAG Debug Connector P33 Not used CPU_TRST CPU_TDI CPU_TMS CTCK Not used CPU_TDO Not used Not used An external JTAG debug tool can be connected to a 20 pin P33 debug connector Jumper J9 must be set to 2 3 position when using an external debugger 38 pin Mictor JTAG Debug amp ETM Trace Connector P32 D 5 6 TRACECLK Notused 7 8 Notused CPU RESET 9 10 Notused GND 13 14 Not used b 25 26 Pii8 eo 27 28 Pii7 D Pie 33 35 7 mao ND 33 34 Pres as 36 and y ma An external JTAG amp ETM debug tool can be connected to a 38 pin Mictor P32 debug connector Jumper J9 must be set to 2 3 position when using an external debugger 26 28 30 P1 20 34 36 38 iSYSTEM March 2007 8 13 CPU expansion connectors GND GND GND GND GND 9 7 0 15 0 23 1 23 0 6 0 14 0 22 0 3
9. et e Verify that jumper J7 is not set e Verify that jumper J9 is set in position 1 2 on board integrated debugger enabled e Open winIDEA 2006 application and open a sample workspace for the ITLPC2138 running from the internal flash e Connect the USB cable to the PC and to the ITLPC2138 e Windows should auto detect a new USB device and install belonging USB driver In case of any problems the driver is located under winIDEA install directory e g c winIDEA 2006 USBDrv e Disconnect the USB cable from the ITLPC2138 and then connect it again The two power LEDs should turn on The target board is not powered if the LEDs don t lit and the problem needs to be resolved before proceeding to the next step e Finally execute Debug Debug Reset This should initialize the development system and the user should be able to write to the internal CPU RAM through the memory window e Next execute Debug Download This should program and run the application until main function The development system is now ready for the debugging iSYSTEM March 2007 11 13 Use of an external debugger An external debugger can be a JTAG debugger which connects to a 20 pin P33 connector a development tool supporting JTAG debugging and ETM on chip trace which connects to a 38 pin Mictor P32 connector Setting up a debug environment for the first time Verify jumpers J15 J20 see Jumpers description for their default position Verify that ju
10. mper J8 is set Verify that jumper J7 is set if your development tool connects to P32 Verify that jumper J9 is set in position 2 3 on board integrated debugger disabled winIDEA 2006 application must to be installed and run once in order to power the ITLPC2138 board through the USB connection Connect the USB cable to the PC and to the ITLPC2138 Windows should auto detect a new USB device and install belonging USB driver In case of any problems the driver is located under winIDEA install directory e g c winIDEA 2006 USBDrv Disconnect the USB cable from the ITLPC2138 and then connect it again The two power LEDs should turn on The target board is not powered if the LEDs don t lit and the problem needs to be resolved before proceeding to the next step Disconnect the USB cable from the ITLPC2138 once again connect the external development system to P32 or P33 depending on the development system turn it on and then connect back the USB cable Execute a debug command equivalent to the CPU reset debug command This should initialize the development system and the user should be able to write to the internal CPU RAM through the memory window The development system should be now ready for use iSYSTEM March 2007 12 13 Troubleshooting The flash boot loader code is executed every time the CPU is powered or reset The loader can execute the ISP command handler or the user application code P0 14 is sensed on a rising edge on th
11. the CPU Then a new valid program can be programmed in the flash or flash erased Then the User mode can be used again Disclaimer iSYSTEM assumes no responsibility for any errors which may appear in this document reserves the right to change devices or specifications detailed herein at any time without notice and does not make any commitment to update the information herein O SYSTEM All rights reserved iSYSTEM March 2007 13 13
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