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• New PCBs

  Sandfrog • 01/12/2017 at 10:14 • 1 comment

  After the last error I now have the new boards these are the final version.

  I can now start testing all the functions.

• LED Blink Test

  Sandfrog • 12/23/2016 at 13:43 • 0 comments

  A little Blink WWAN LED - Test on the V1.1 Board (Comments will be translated later), Write the Little Code with mpasm.

  main.asm
  

  	;list p=18f2550
  	include "p18f2550.inc"
  	
  	org	0x000800		; Starte Programm
  	goto	init
  	org     0x000808		; Interuptvector High
  	; call or goto blablub
  	org	0x000818		; Interuptvector Low
  	; call or goto blablub
  	org	0x000828		; Erste Rotine auf Adr. 0x820
  	
  	cblock	0x00			; Variabeln ab 0x00
  	t1				; Delay
  	t2				; Delay
  	t3				; Delay
  	endc
  	
  	#define WPAN	PORTC,0		; WPAN LED
  	#define WLAN	PORTC,1		; WLAN LED
  	#define WWAN	PORTC,2		; WWAN LED
  
  	include	"portreg.inc"		; Ports einstellen (portreg)
  	include "delay.inc"		; Software Delays (delay)
  	;include	"i2c.inc"		; I2C Routinen
  
  init
  	call	portreg			; Ports einstellen
  
  main    				; Mainschleife
  	bsf	WWAN
  	call	delay_1s
  	bcf	WWAN
  	call	delay_1s
  	goto	main
  	end

  delay.inc

  delay_1s
  	movlw 0x6d
  	movwf t1
  	movlw 0x5e
  	movwf t2
  	movlw 0x1a
  	movwf t3
  loop_1s
  	decfsz	t1, 1
  	goto	loop_1s
  	decfsz	t2, 1
  	goto	loop_1s
  	decfsz	t3, 1
  	goto	loop_1s
  	return

  portreg.inc

  portreg	; PORTA
  	movlw	B'00000000'		; PortA I/O setzen (1=In, 0=Out) (Reinfolge RB7,RB6...)
  	movwf	TRISA			; PortA I/O setzen
  	clrf	PORTA
  	; PORTB
  	clrf	PORTB			; PortB auf 0 setzen
  	clrf    LATB			; Data Latch löschen
  	movlw	B'00000011'		; PortB I/O setzen (1=In, 0=Out) (Reinfolge RB7,RB6...) (I2C Slave RB7/RB6 = input)
  	movwf	TRISB			; PortB I/O setzen
  	movlw   B'00001111'		; Alle I/0 Digital
  	movwf	ADCON1
  	; PORTC
  	movlw	B'00000000'		; PortC I/O setzen (1=In, 0=Out) (Reinfolge RC7,RC6...)
  	movwf	TRISC			; PortC I/O setzen
  	clrf	PORTC			; PortC auf 0 setzen
  	return

  
  

• Find the Fail;-(

  Sandfrog • 12/21/2016 at 11:40 • 7 comments

  Wait long Time for the new PCB, Error from me and OSHPark, OSHPark forgets the VIAs and I order in the wrong thickness, i Order new and wait for the New One.

  Lock very nice its better as the First Version and not usable.

  Can you see whats is not ok ?

• Order Version 1.3 / Bootloaderfix

  Sandfrog • 12/01/2016 at 10:05 • 2 comments

  - New version V1.3 ordered at OSHPark, some minor improvements, Quartz changed.

  - Fix for the Bootloader, the EEPROM is now nullified by default, otherwise the first Programm will not start.

• Wiring diagram

  Sandfrog • 11/24/2016 at 22:05 • 0 comments

• Work on the next Version

  Sandfrog • 11/24/2016 at 11:10 • 0 comments

  Work on the next version, the first version is usable but not good enough for me.

  Changes:

  - Other Crystal

  - Fix placement pressure

  - Fix overlaps on the connector

  - Remove Bootloder Jumper (JP1)

  - Other Protopads

  - Fix minor things in the libs

  - More Bling Bling;)

• Bootloader Works

  Sandfrog • 11/22/2016 at 00:58 • 0 comments

  I use the Bootloader V5 from

  Http://www.sprut.de/electronic/soft/usboot/usboot.htm (German Page)

  Https://goo.gl/Z53QYX (Translated Page)

  This starts after the reset when RE3 is at GND, or when the EEPROM cell with the address 0xFE has the value 0xFF.

  Drivers / Tools for Windows are included in the USBoot package (Not Tested),

  For Linux I use a customized version of fsUSB (http://www.internetking.org/fsusb/), or Piklab.

  The device has its own USB ID:
  

  Bus 004 Device 002: ID 04d8: ff0b Microchip Technology, Inc.

• PCBs V1.1

  Sandfrog • 11/21/2016 at 18:24 • 0 comments

  PCBs from OSH Park with some layout errors.

  - Quartz footprint with too much soldering resist

  - Smaller errors in the placement pressure
  

  For initial tests the PCB is usable.

• Test Tool

  Sandfrog • 11/19/2016 at 12:52 • 0 comments

  Order a Test Tool for USB, to Test Power consumption, the connection and other things.

  https://aliexpress.com/item/Mini-PCI-Express-pcie-pci-express-PCI-E-Wireless-WWAN-to-USB-Adapter-Card-with-SIM/32657444139.html

• PCB-Order PCB V1.0

  Sandfrog • 10/27/2016 at 16:17 • 0 comments

  Long time ago ;(

  Order a Proof of Concept PCB, wait for it, ETA ~3-4 Weeks ordert by OSH-Park

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