Junebug Assembly Tips - Page 4 - Electronic Circuits Projects Diagrams Free

blueroomelectronics · 12th November 2007, 03:30 PM

What are you using to program the 18F2550?

jeremygaughan · 12th November 2007, 05:39 PM

I'm using a kit149 BE. I read the 18f2550 after programming and the hex looks exactly like the hex I was trying to put into it. Should there be any info in the EEPROM? I'm going to continue with my build and put a few pictures in a little while.

blueroomelectronics · 12th November 2007, 07:50 PM

It uses the eeprom but I don't think having it unprogrammed is a problem. The PICkit 2 standalone software will let you calibrate and name your PK2 / Junebug.

jeremygaughan · 12th November 2007, 09:34 PM

Almost done with it. My clone is probably the ugliest programmer ever.

I'm gonna call it jumper. When you see the pictures you'll understand. Thanks for all the help

blueroomelectronics · 12th November 2007, 09:37 PM

Well just for the record here's my prototype. I used a 18F4550 because I had one handy at the time. Still works too!

futz · 12th November 2007, 11:31 PM

Quote:

Originally Posted by 3v0

These are the parts numbers for JuneBug
So far I have switches and Semiconductors.
Added the inductor L1 and the USB connector CON1
I did not include the LEDs.

I made a partial parts list with Digikey "ND" numbers. Maybe it will help someone. I only put in the numbers of what I ordered. The rest came out of my parts boxes:

Code:

Parts List JUNEBUG 

Capacitors 
1  C1      22uF 16V (must be at least 16V rated) 
2  C2,3    22pF ceramic (18pF thru 22pF acceptable) (495-3298-1-ND)
2  C4,8    0.1uF 
1  C5      100uF (47uF or greater acceptable) 
1  C6      0.47uF (0.22uF thru 0.47uF acceptable) (445-3850-ND)
1  C7      22uF  (4.7uF thru 47uF acceptable) 
 
Resistors ¼W  
1  R1      10K  x 5  SIP 10pin 5 independent resistors (4610X-2-103LF-ND)
1  R2      100  x 5  SIP 10pin 5 independent resistors (4610X-2-101LF-ND)
1  R3      4.7K x 5  SIP 10pin 5 independent resistors (4610X-2-472LF-ND)
1  R4,5,10    1K   Brown,  Black,  Red,  Gold 
1  R6    2.7K   Red,  Yellow,  Red,  Gold 
1  R7    100K   Brown,  Black,  Yellow,  Gold 
4  R8,13,14,17    330    Orange, Orange, Brown, Gold 
3  R9,11,12    100    Brown, Black, Brown, Gold 
2  R15,16    22K   Red,  Red,  Orange,  Gold 
2  VR1,VR2    10K   10K  Trimmer  potentiometers 

Semiconductors  
2  D1,3      1N4148 Small Signal Diode 
1  D2    1N5817  Schottky  Diode (1N5817-TPCT-ND)
6  LED1,2,3,4,5,6    3mm or 5mm RED or GREEN LED 
1  LED7    3mm  GREEN  LED 
1  LED8    3mm  YELLOW  LED 
1  LED9    3mm  RED  LED 
1  IR1      TSOP34838 38KHz IR detector 
1  Q1,3,6     2N3904 NPN (EBC)  
1  Q4    2N3906  PNP  (EBC) 
1  Q5    2N7000 N-Channel 200ma MOSFET (2N7000FS-ND)
1  Q2    BS250P P-Channel 230ma MOSFET (BS250P-ND)
1  U1    PIC18F2550 (firmware) (PIC18F2550-I/SP-ND)
1  U2    PIC18F1320 (Tutor) (PIC18F1320-I/P-ND)
1  Y1    20MHz Crystal (631-111-ND)

Switches 
3  SW1,2,3   Pushbutton (450-1131-ND)  
2  SW4,5    Small pushbutton (450-1173-ND ***Discontinued Part***) 
1  SW6      DIP Switch 8 position (GH7176-ND)

Connectors 
1  CON1    RA USB B connector   
1  CON2    ICD 2x5 PCB Male   ICD2 (MHC10K-ND)
1  CON4    3pin  machine  socket  RA3,RA4,GND 
1  CON7    3pin  header   RB3,+5V,GND   
1  CON8    8pin Molex connector   +5V,RA1,RA2,RA3,RA4,RB1/TX,RB4/RX,GND 
1  CON6    16pin header for 18F2550 (pins 11 thru 16 are PICkit2 compatible)   
(RE5,U5V,GND,RB7,RB6,RB1,RB0,RC7,RC6,RC2,VPP,+5V,GND,PGD,PGC,AUX) 
1  SOCKET  IC Socket 28POS (ED3328-ND)
1  SOCKET  IC Socket 18POS (ED3318-ND) 

Miscellaneous 
1  FB1    Ferrite  Bead 
1  L1    680uH  inductor (M8047-ND)

Optional Accessories 
1  Enclosure    Polyview LAB-EASY BT-04

Sparkfun Electronics has female breakaway headers for CON6.

blueroomelectronics · 12th November 2007, 11:40 PM

Quote:

Originally Posted by futz

I made a partial parts list with Digikey "ND" numbers. Maybe it will help someone. I only put in the numbers of what I ordered. The rest came out of my parts boxes:

Code:

Parts List JUNEBUG 

Capacitors 
1  C1      22uF 16V (must be at least 16V rated) 
2  C2,3    22pF ceramic (18pF thru 22pF acceptable) (495-3298-1-ND)
2  C4,8    0.1uF 
1  C5      100uF (47uF or greater acceptable) 
1  C6      0.47uF (0.22uF thru 0.47uF acceptable) (445-3850-ND)
1  C7      22uF  (4.7uF thru 47uF acceptable) 
 
Resistors ¼W  
1  R1      10K  x 5  SIP 10pin 5 independent resistors (4610X-2-103LF-ND)
1  R2      100  x 5  SIP 10pin 5 independent resistors (4610X-2-101LF-ND)
1  R3      4.7K x 5  SIP 10pin 5 independent resistors (4610X-2-472LF-ND)
1  R4,5,10    1K   Brown,  Black,  Red,  Gold 
1  R6    2.7K   Red,  Yellow,  Red,  Gold 
1  R7    100K   Brown,  Black,  Yellow,  Gold 
4  R8,13,14,17    330    Orange, Orange, Brown, Gold 
3  R9,11,12    100    Brown, Black, Brown, Gold 
2  R15,16    22K   Red,  Red,  Orange,  Gold 
2  VR1,VR2    10K   10K  Trimmer  potentiometers 

Semiconductors  
2  D1,3      1N4148 Small Signal Diode 
1  D2    1N5817  Schottky  Diode (1N5817-TPCT-ND)
6  LED1,2,3,4,5,6    3mm or 5mm RED or GREEN LED 
1  LED7    3mm  GREEN  LED 
1  LED8    3mm  YELLOW  LED 
1  LED9    3mm  RED  LED 
1  IR1      TSOP34838 38KHz IR detector 
1  Q1,3,6     2N3904 NPN (EBC)  
1  Q4    2N3906  PNP  (EBC) 
1  Q5    2N7000 N-Channel 200ma MOSFET (2N7000FS-ND)
1  Q2    BS250P P-Channel 230ma MOSFET (BS250P-ND)
1  U1    PIC18F2550 (firmware) (PIC18F2550-I/SP-ND)
1  U2    PIC18F1320 (Tutor) (PIC18F1320-I/P-ND)
1  ??    20MHz Crystal (631-111-ND)

Switches 
3  SW1,2,3   Pushbutton (450-1131-ND)  
2  SW4,5    Small pushbutton (450-1173-ND ***Discontinued Part***) 
1  SW6      DIP Switch 8 position (GH7176-ND)

Connectors 
1  CON1    RA USB B connector   
1  CON2    ICD 2x5 PCB Male   ICD2 (MHC10K-ND)
1  CON4    3pin  machine  socket  RA3,RA4,GND 
1  CON7    3pin  header   RB3,+5V,GND   
1  CON8    8pin Molex connector   +5V,RA1,RA2,RA3,RA4,RB1/TX,RB4/RX,GND 
1  CON6    16pin header for 18F2550 (pins 11 thru 16 are PICkit2 compatible)   
(RE5,U5V,GND,RB7,RB6,RB1,RB0,RC7,RC6,RC2,VPP,+5V,GND,PGD,PGC,AUX) 
1  SOCKET  IC Socket 28POS (ED3328-ND)
1  SOCKET  IC Socket 18POS (ED3318-ND) 

Miscellaneous 
1  FB1    Ferrite  Bead 
1  L1    680uH  inductor (M8047-ND)

Optional Accessories 
1  Enclosure    Polyview LAB-EASY BT-04

Sparkfun Electronics has female breakaway headers for CON6.

Nice work, both 3v0 and futz you have done a nice job. The CON6 connector is completely optional. It was designed for using the Junebug as an USB experimentor platform, programming EEPROMs, ICP, PK2 compatible connector (with AUX).

Thanks for pointing out Y1 was not in the BOM.

**3v0** · 13th November 2007, 12:10 AM

I will use futz's (love that name) work to improve the Octopart list.

It is a bit awkard but they are working on improving the interface to allow us to sort/order the parts and do parameteric searches.

If all goes well one should be able to generate an order for parts using one or more vendors from the Octopart interface.

futz · 13th November 2007, 12:33 AM

Quote:

Originally Posted by 3v0

I will use futz's (love that name) work

Hehehe! Here's the definition:

futz f&ts v.i. To tinker experimentally; to change something just to see what it does.

Pommie · 13th November 2007, 01:32 AM

Quote:

Originally Posted by futz

Hehehe! Here's the definition:

futz f&ts v.i. To tinker experimentally; to change something just to see what it does.

So, all this time I've been Futzing around and didn't realise.

Mike.
P.S. I'm going to populate my board tomorrow but I'm having the same problem of getting a p channel fet. Looks like I'll have to take a trip into the city.

**Krumlink** · 13th November 2007, 02:32 AM

3v0 helped me out a ton today!

He helped me program the 18F1320 to just blink port RB2. He then taught me about the port bits and how to use them. I then kept experimenting with them, changing the timing, and then I ended up with a Binary counter! It counts all the way up to 9, then goes back to 0. I was wondering how I add more bits and ports, such as making the timing go past 9. I couldn't figure this out, and I know you know. Thanks

I LOVE MICROCONTROLLERS! THERE I SAID IT!

blueroomelectronics · 13th November 2007, 04:08 AM

Impressive, you'll have to post some code.

The 18F1320 is an advanced 8bit PIC, I actually enjoy using them over the 16F chips. The original Junebug design was going to use another 16F88 but since you can still use the Firefly Tutor I chose to use the 18F1320 on Junebug. *the 18F1320 shows its age by having an open collector RA4*

Very little bank switching, the LAT instruction, a proper subtract instruction, compare instructions, PUSH, POP, tables, free C compiler. The only drawback is you might not want to work with the 12bit or 14bit cores.

Not officially announced but I'm testing a simple hardware mod to the Inchworm+ design for 3.3V programming. Basically changed the 330 ohm resistors to 2.4K on the PGC & PFD lines, remove the VDD switch and BS250 (will not power the target) and dropping VPP to 10V (jumper to VPP switch)

**Krumlink** · 13th November 2007, 04:13 AM

HEX! That was my problem.

Here is the code. The bottom portion was what I did:

Code:

#include <p18f1320.h>
#include <delays.h>
#include <stdio.h> 
#include <stdlib.h>

#pragma config WDT = OFF
#pragma config OSC = INTIO2
#pragma config LVP = OFF
#pragma config PWRT = ON


// define TESTS
#define byte unsigned char
#define int8 unsigned char

#define CMD   0x00
#define DATA  0x01
#define READ  0x01
#define WRITE 0x00

#define TRIS_ACT_LED       TRISBbits.TRISB2 
// TRISAbits.TRISA2
#define ACT_LED            LATBbits.LATB2
// LATAbits.LATA2  


void delay_10us(unsigned char t);
void delay_ms(long t);

void delay_10us(byte t)
{
   int i;
   for (i=0;i<t;i++)
      Delay10TCYx(5);
}

void delay_ms(long t)   // delays t millisecs
{
   do
   {
     delay_10us(99);    // not 100 to compensate for overhead
   } while(--t);
}

void delay_us(long us)
{
    long x = (us%1000)/10;
    delay_ms(us/1000);
    delay_10us(x);
}    
    


void main (void)
{
  int flip = 0;
  long i,j;

  //
  // Set direction registers
  //
  //TRISA= 0x00;
  //TRISB= 0x00;
  TRIS_ACT_LED = 0; TRISA=0x00;  TRISB=0x00;

  //LAT0xA=0x00;
  //LATB=0x00;
  
  
  while (1)
  { 
    //ACT_LED = 0;
    //LATA= 0x00; 
    LATB= 0x01;
    delay_ms(1);
    //ACT_LED = 1; 
    //LATA= 0xFF; 
    LATB= 0x02;
    delay_ms(1);
	LATB= 0x03;
    delay_ms(1);
	LATB= 0x04;
    delay_ms(1);
	LATB= 0x05;
    delay_ms(1);
	LATB= 0x06;
    delay_ms(1);
	LATB= 0x07;
    delay_ms(1);
	LATB= 0x08;
    delay_ms(1);
	LATB= 0x09;
	delay_ms(1);
	LATB= 0x00;
	delay_ms(1);
  }
}

You need 4 LED's, each with a 330ohm resistor and one leading from rb0, rb1 rb2 and rb3, or else it wont work.

blueroomelectronics · 13th November 2007, 04:15 AM

Jaw drop, are you the real Krumlink? in C wow. Which C did you use?

You should have no problem with the LED mux on Junebug. It's the same type of mux the PICkit 1 uses.

**3v0** · 13th November 2007, 06:26 AM

Krumlink is using MCC18 and an Inchworm+.

I provided a simple program that blinked the ACT_LED using

while(1)
{
ACT_LED = 1;
delay_ms(10);
ACT_LED = 0;

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12th November 2007, 03:30 PM	(permalink)
blueroomelectronics	What are you using to program the 18F2550? __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

12th November 2007, 05:39 PM	(permalink)
jeremygaughan	I'm using a kit149 BE. I read the 18f2550 after programming and the hex looks exactly like the hex I was trying to put into it. Should there be any info in the EEPROM? I'm going to continue with my build and put a few pictures in a little while. __________________ jeremy

12th November 2007, 07:50 PM	(permalink)
blueroomelectronics	It uses the eeprom but I don't think having it unprogrammed is a problem. The PICkit 2 standalone software will let you calibrate and name your PK2 / Junebug. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

12th November 2007, 09:34 PM	(permalink)
jeremygaughan	Almost done with it. My clone is probably the ugliest programmer ever. I'm gonna call it jumper. When you see the pictures you'll understand. Thanks for all the help __________________ jeremy

12th November 2007, 09:37 PM	(permalink)
blueroomelectronics	Well just for the record here's my prototype. I used a 18F4550 because I had one handy at the time. Still works too! __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

13th November 2007, 12:10 AM	(permalink)
3v0	I will use futz's (love that name) work to improve the Octopart list. It is a bit awkard but they are working on improving the interface to allow us to sort/order the parts and do parameteric searches. If all goes well one should be able to generate an order for parts using one or more vendors from the Octopart interface. Last edited by 3v0; 13th November 2007 at 12:12 AM.

13th November 2007, 02:32 AM	(permalink)
Krumlink	3v0 helped me out a ton today! He helped me program the 18F1320 to just blink port RB2. He then taught me about the port bits and how to use them. I then kept experimenting with them, changing the timing, and then I ended up with a Binary counter! It counts all the way up to 9, then goes back to 0. I was wondering how I add more bits and ports, such as making the timing go past 9. I couldn't figure this out, and I know you know. Thanks I LOVE MICROCONTROLLERS! THERE I SAID IT! __________________ MechTronics World of Warcraft is a disease

13th November 2007, 04:08 AM	(permalink)
blueroomelectronics	Impressive, you'll have to post some code. The 18F1320 is an advanced 8bit PIC, I actually enjoy using them over the 16F chips. The original Junebug design was going to use another 16F88 but since you can still use the Firefly Tutor I chose to use the 18F1320 on Junebug. the 18F1320 shows its age by having an open collector RA4 Very little bank switching, the LAT instruction, a proper subtract instruction, compare instructions, PUSH, POP, tables, free C compiler. The only drawback is you might not want to work with the 12bit or 14bit cores. Not officially announced but I'm testing a simple hardware mod to the Inchworm+ design for 3.3V programming. Basically changed the 330 ohm resistors to 2.4K on the PGC & PFD lines, remove the VDD switch and BS250 (will not power the target) and dropping VPP to 10V (jumper to VPP switch) __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com Last edited by blueroomelectronics; 13th November 2007 at 04:14 AM.

13th November 2007, 06:26 AM	(permalink)
3v0	Krumlink is using MCC18 and an Inchworm+. I provided a simple program that blinked the ACT_LED using while(1) { ACT_LED = 1; delay_ms(10); ACT_LED = 0;