- Jibberish is on the display, so we know the chip is working.
Using:
gcbasic compiler 2012nov04
graphical GC of 9.3
;**
The project is for middle & high school students.
I am planning on having them use Tiny PIC bootloader: www.etc.ugal.ro/cchiculita/software/picbootloader.htm?
Uses less than 100 words of program space
Load via a USB-RS232_ttl on a hser port CP2102 or PL2303 [ebay <$3]
The board is 1.5" x 3"
20 pin Pic, 16f1829, 16f690
Power pins @ 1 and [8 | 14 | 18 | 20]
Any 8, 14, 18, 20 pin "new" pinout
The Board Features:
Ports:
LCD Parrallel 1x16 Hitiachi type
LCD SPI 1x 8 Nokia 5110... type
I2c 1x4 v-, V+ sda, scl -- 2 headers
RS232 [in=a.3 +22kohm software, out=a.0 +1kohm]
nRF24L01 2x4 pin - SPI RF radio
1x1.5" Prototying area
Other parts: lm7805, lm1117-3.3v, 10k trim pot [lcd contrast], xtal, 2.1mm-F power
;**
The code is just a simple "Hello World"
It works for on a 16f690:
;Chip Settings
#chip 16F690,4
-------------------------->> Thanks for any help !! Fuzzy
;**************
;***********************************************************************;***********************************************************************;***********************************************************************
;Chip Settings
#chip 16F1829,4
;Defines (Constants)
#define LCD_IO 4
#define LCD_DB4 PORTC.0
#define LCD_DB5 PORTC.1
#define LCD_DB6 PORTC.2
#define LCD_DB7 PORTC.3
#define LCD_Enable PORTC.4
#define LCD_RS PORTC.5
#define LCD_NO_RW 'Needed when RW is grounded
;Variables
Dim xB As byte
main:
Dir PORTC Out
CLS
For xB = 1 To 20
Print "Hello World ", xb
Wait 250 ms
Next
goto main
end
Last edit: ofuzzy1 2013-09-22
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Frank Thanks, but that did not work.
If you want a PCB I'll gladly send a you & Hugh one each- unpopulated.
1"square 8pin PICs
1.5x3 8,14,18,20 pin PICs
1.5x4" 28 pin PICs USB "UBW" with the features below -- UBW=USB Bit Wacker vairant -- & SD Ram card with the features below
24mm x 9" Rocket PIC -The UBW & 2 accelerometers [200g_Analog and i2c 4g,8,12g] & i2c pressure sensor.
I will post later today a logic analyzer output.
-- ignore the i2c-spi interface that was for something special.
Last edit: ofuzzy1 2013-09-21
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
The first 690, the last is 1829.
It appears the time delay between bits is not long enough.
Slowing it down with did not work. #chip 16F1829, 0.125
image 4 is @ 1.40 ms
Is this associated with ANSELC not being cleared in the GCBASIC INITSYS sub? This has come up several times before here on the forum. Try adding it before Main:
clrf ANSELC
In certain situations, forget which devices and under what circumstances, it helps when "writing" to a port, or using #defines, by using LATC.x instead of PORTC.x
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Ofuzzy. I would like to take you up on your offer. email me. I am in UK, where are you? re: Hugh, if acceptable to Hugh I can get an item couriered to him (for free).
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Fixed!
Thanks Kent!
Using:
gcbasic compiler 2012nov04
graphical GC of 9.3
;**
The project is for middle & high school students.
I am planning on having them use Tiny PIC bootloader: www.etc.ugal.ro/cchiculita/software/picbootloader.htm?
Uses less than 100 words of program space
The board is 1.5" x 3"
20 pin Pic, 16f1829, 16f690
Power pins @ 1 and [8 | 14 | 18 | 20]
Any 8, 14, 18, 20 pin "new" pinout
The Board Features:
Ports:
LCD Parrallel 1x16 Hitiachi type
LCD SPI 1x 8 Nokia 5110... type
I2c 1x4 v-, V+ sda, scl -- 2 headers
RS232 [in=a.3 +22kohm software, out=a.0 +1kohm]
nRF24L01 2x4 pin - SPI RF radio
1x1.5" Prototying area
Other parts: lm7805, lm1117-3.3v, 10k trim pot [lcd contrast], xtal, 2.1mm-F power
;**
The code is just a simple "Hello World"
It works for on a 16f690:
;Chip Settings #chip 16F690,4 -------------------------->> Thanks for any help !! Fuzzy ;************** ;***********************************************************************;***********************************************************************;*********************************************************************** ;Chip Settings #chip 16F1829,4 ;Defines (Constants) #define LCD_IO 4 #define LCD_DB4 PORTC.0 #define LCD_DB5 PORTC.1 #define LCD_DB6 PORTC.2 #define LCD_DB7 PORTC.3 #define LCD_Enable PORTC.4 #define LCD_RS PORTC.5 #define LCD_NO_RW 'Needed when RW is grounded ;Variables Dim xB As byte main: Dir PORTC Out CLS For xB = 1 To 20 Print "Hello World ", xb Wait 250 ms Next goto main endLast edit: ofuzzy1 2013-09-22
First thing I would do, install the latest GCB.
Download from here, http://gcbasic.sourceforge.net/newfiles/update.zip or if you want a completed toolset try here, http://www.franksteinberg.de/ZIPS/GCB%40Syn.zip - Thanks go to Frank!!!!
When you install, locate the directory and you will see the Great Cow Graphical BASIC application.
Let us know the results of trying this version of GCB.
Last edit: Anobium 2013-09-21
Frank's link doesn't work.
I get a 404 error.
http://www.franksteinberg.de/ZIPS/GCB%40Syn.zip
try http://www.franksteinberg.de/ZIPS/GCB%40Syn.zip
Frank Thanks, but that did not work.
If you want a PCB I'll gladly send a you & Hugh one each- unpopulated.
1"square 8pin PICs
1.5x3 8,14,18,20 pin PICs
1.5x4" 28 pin PICs USB "UBW" with the features below -- UBW=USB Bit Wacker vairant -- & SD Ram card with the features below
24mm x 9" Rocket PIC -The UBW & 2 accelerometers [200g_Analog and i2c 4g,8,12g] & i2c pressure sensor.
I will post later today a logic analyzer output.
-- ignore the i2c-spi interface that was for something special.
Last edit: ofuzzy1 2013-09-21
Can you confirm the code works without the bootloader, for both chips? Thank you. I want to check the basics first.
:-) This Anobium.... not Frank. I was thanking Frank for his good work.
Last edit: Anobium 2013-09-21
Anobium, oops on calling you Frank. :)
Anobium: Offer still stands on the boards.
Attached are 2 logic analyzer snap shots. [Open Bench - $50]
http://www.seeedstudio.com/depot/preorder-open-workbench-logic-sniffer-p-612.html?cPath=75
The first 690, the last is 1829.
It appears the time delay between bits is not long enough.
Slowing it down with did not work. #chip 16F1829, 0.125
image 4 is @ 1.40 ms
Last edit: ofuzzy1 2013-09-22
one more run
500kHz @ 45ms after rs goes low
It appears that the hold time on some of the bits is not long enough.
Last edit: ofuzzy1 2013-09-22
Is this associated with ANSELC not being cleared in the GCBASIC INITSYS sub? This has come up several times before here on the forum. Try adding it before Main:
In certain situations, forget which devices and under what circumstances, it helps when "writing" to a port, or using #defines, by using LATC.x instead of PORTC.x
Kent Your the Man!
Something so simple: clrf ANSELC
Thanks a bunch!
Kent... nice one!
Ofuzzy. I would like to take you up on your offer. email me. I am in UK, where are you? re: Hugh, if acceptable to Hugh I can get an item couriered to him (for free).