PIC Development Board User Manual
Contents
1. PIC Development Beard User Manu i PIC Development Board User Manual Version 1 0 emenT X PIC Development Board User Manual Contents L EE EO eene 3 2 Programmer Connectivity EE 4 Syme Gia Cig e Boles o EE 5 A Light Emitting Riet EE 6 Dx HAUIA e E ERR 7 OWIEC IES ee 8 7 Serial Communication 9 POCE KENS Eeer 10 2 8 EE 11 TEs EE 12 11 Rente en EE 13 e RE 14 E 02 Gene eee ee one ne nee one ne ee ee een eee eee en eee 15 TE gectaeeceepednaesoattneetactnstnette onc ttnceeactretnceineence nce act denceacenceucencendenceaceseruceetosaueouste se todner sins 16 hoe US EE 17 15 1 USB Application jumper settings 18 15 2 USB Application HEEN 19 BE eg e e D 19 16 TROUDIECS NO OUN e erserennkn aE E EEEE EE 20 16 1 Power Supply EHECHIE et wet et set seg ker weert berg ege ebe beg Ree ee age Een 20 16 2 LIGHT Emitting DIOGOS E 20 16 3 Liquid Crystal Display 20 DG e lr 21 16 6 5 rial CO ole FRC MUO 2c Set coher beet ae heen eet east ete eacen dase anne caer 21 MGs Port eege EE 21 PIC Develooment Beard User Manuc 1 Features On Board ICSP connectivity Any 40 pin compatible PIC controller Serial communication I2C EEPROM SPI EEPROM USB with supported controllers PS 2 connectivity Voltage references Vref Vref RTC crystal 10 Temperature sensor 11 16x2 LCD connectivity 12 Led array 13 Switches 14 Port extensions GE Ee POWER ADAPTER EMERT X E www emert2. is connected to the to oscillator inputs T1OSO RCO and T1OSI RC1 pins of PIC microcontrollers Using this circuitry we can achieve lots of applications which needs real time 32 TEBEH REAL TIME CLOcE CL mmm LJB 22 768kHz Note see the troubleshooting section if any problem exits PIC Development Board User Manual 10 ADC Most of the PIC controllers have ADC inbuilt which can be used in several applications The are two presets connected to two PORTA pins RA2 and RA3 Now this pins can also be used as the voltage references Refer the controller data sheet for more information RA3 RE2 Saile IRAS NC VOLTAGE REFERENCE PROTOCOL There is option to connect the potentiometers POT to different analog port pins using the jumpers EXT1 and EXT2 This can be achieved by connecting the EXT pins to Extension ports vce Note see the troubleshooting section if any problem exits PIC Develooment Beard User Manuc 11 Temperature Sensor You have a provision to connect a temperature sensor LM35 on board You can even connect an compatible sensor in place of LM35 But be sure of the pin diagram before connecting on board This pin is connected to PORTA RAO RAI RAJ RE2 SENSOR TEMP mmm SS SSS OS Oe ek RER Ep eg Note see the troubleshooting section if any problem exits PIC Development Board User Manual 12 SPI Basically this board is desi
3. 3 2 R W is directly grounded 3 The RS pin is connected to R4 4 Enable pin is connected to R5 Note see the troubleshooting section if any problem exits PIC Development Board User Manual 6 Switches The connection of the switches depends upon the logic level you want as the input to the controller 1 If you want HIGH 5V as the input then 1 Jumper SOURCE to VCC 2 Jumper PULL to pull down mode SWITCH ETTING Jumper Connected Jumper Open 2 If you want LOW OV as the input then 1 Jumper SOURCE to GND 2 Jumper PULL to pull up mode Jumper Connected Jumper Open There are 5 switches connected to PORTB The PORTB pin from RBO to RB4 are multiplexed with LCD data lines Note see the troubleshooting section if any problem exits PIC Develooment Beard User Manud i 7 Serial Communication This feature enables you to have communication like USART with the PC Connect JP1 RX and JP2 TX using the short links Jumper Connected Jumper Open Note see the troubleshooting section if any problem exits PIC Development Board User Manual 8 Port Extensions You can extend all the ports of the controller outside the board for your customized circuit Note see the troubleshooting section if any problem exits PIC Development Beard User Manua 9 RTC You have very good chance to implement the real time clock RTC ing on board The RTC crystal
4. SB USB communication is one of the most popular communication today But it is little complicated one Not all the PIC controllers support this communication The PIC18F4550 is one of the PIC controller which has the USB support SELECT COMM PROTOCO EEPROM m m m m USE CONHECTOR Jumper Connected Jumper Open Optional REES VEC eg Al Kaze dadl E E j CIS Note see the troubleshooting section if any problem exits PIC Development Board User Manual 15 1 USB Application jumper settings lt E D Hi ei a d Jumper Connected Jumper Open PIC Development Beard User Manu il 15 2 USB Application Schematic Vee sW 6 Optional L 1 VER Le E C E LED 15 3 Getting Started Setup the board as shown in the jumper setting diagram Switch on the power Watch the LED status for USB state State LED1 LED2 LED3 LED4 Detached State Attached State Powered State Default State Address Pending State Address State Configured State PIC Development Board User Manual 16 Troubleshooting 16 1 Power Supply Circuit Take the following steps if the power led does not glow i e no supply voltage to the board e Check whether you are getting the adapter output voltage at the anode of diode 1 If yes check the output pins of voltage regulators 7805 pin no 3 2 If no ch
5. eck the adapter output amp DENOTES PIN NUMBER i AC LINE ADAPTER OUTPUT If you still unable to resolve the problem contact the hardware designer 16 2 Light Emitting Diodes Take the following steps if the power led does not glow 1 Check your software whether you have selected proper port proper configurations etc Check whether the jumper settings are proper Check the signal level at the pin you should get OV Check the led with the multimeter Check the LED using multimeter P I W RO 16 3 Liquid Crystal Display 1 Check your software whether you have selected proper port proper configurations etc Make sure you are using 4 BIT mode of communication since the hardware is designed for 4 BIT mode Check whether the jumper settings are proper Make sure the contrast level is tuned properly W N PIC Development Beard User Manu i lt www emertxe com 16 4 Switches 1 2 3 4 Check your software whether you have selected proper port proper configurations etc Check whether the jumper settings are proper Make sure you have set proper source and the corresponding pulls i e Pull up or pull down Check the signal level at the pin you should get 5V if you have choose 5V as source and OV if it is GND Check the continuity by pressing the switch using the multimeter 16 6 Serial Communication Check your software whether you have selected proper port proper config
6. gned to explore the internal peripherals of PIC microcontrollers The board has a SPI supported EEPROM on it By connecting jumpers from SELECT COMM PROTOCOL section in SPI mode the board is connected to SPI EEPROM COMP co SELECT PROTO Jumper Connected Jumper Open VEC Note see the troubleshooting section if any problem exits PIC Development Beard User Manu il 13 12C The best way to explore the communications can be achieved by having the bidirectional communication The best way to have this is using EEPROM where we can write and read in it The board even has a I2C supported EEPROM on it By connecting jumpers from SELECT COMM PROTOCOL section in I2C mode the board is connected to I2C EEPROM ED J Ize USB SPI SELECT COMM PROTOCO Jumper Connected Jumper Open T i i vec AO Vee E Al E A2 l GD l E i RS E T Note see the troubleshooting section if any problem exits PIC Development Board User Manual 14 PS2 Using the PS2 protocol we can connect the keyboard or mouse to the controller The DATA and CLK pin from the device is not directly connected to the controller just have different approach of connecting the hardware polling or interrupt method SWITCH SETTINGS em a FS 2 CONNECTOR VEC VEC Note see the troubleshooting section if any problem exits PIC Develooment Beard User Manuc 15 U
7. urations etc Check the voltage levels at MAX232 if you have 5V as input then the expected output of MAX232 is 8 to 12V and the other way round if the input is OV 16 7 Port Extensions Check your software whether you have selected proper port proper configurations etc Check whether the jumper settings are proper Make sure you enable proper pulls to the external connected circuits Make sure external hardware is connected with the proper signals from the baseboard Le Check the connections of VCC GND and 9 12V if you use it Check the signal level at the pin Check for proper continuity once the circuit is connected
8. xe com TETERE TETERE NC mm 0 0 aan RK oO TEMP SENSOR VOLTAGE EXT1 REFERENCE ExT aoaaa PS 2 CONNECTOR PIC Development Board User Manual 2 Programmer Connectivity Most of the PIC microcontrollers supports ICSP This board does not support low voltage programming The programmer is not built on board due to the future enhancement of programming circuit MCLE A PIC Development Beard User Manu il 3 Getting Started 1 Connect the power adapter 12V AC or 9 12V DC to Power Jack 2 Switch on the Power Switch the power led should glow 3 Once the power led glows you are ready to work with the board Power Jack Power Switch Power Led Note Refer the troubleshooting section if any problem exist PIC Development Board User Man li 4 Light Emitting Diodes Do the following settings to make LEDs work 1 Jumper J1 to Enable LEDs mode Jumper Connected Jumper Open All the eight LEDs are connected to PORTD of the microcontroller The anode of the LEDs are tied to VCC So to glow the LED you should make the corresponding pin low gem IR 8 YCC Note see the troubleshooting section if any problem exits PIC Development Beard User Manu il 5 Liquid Crystal Display The LCD is connected to PORTB The type of data communication used here is 4 bit mode The connections are as follows 1 Data line are from RBO to RB
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