LCD degree symbol with sprintf (BoostC) - Page 2 - Electronic Circuits Projects Diagrams Free

blueroomelectronics · 30th May 2008, 06:28 AM

I will say Stella looks familiar

As for the two wire LCD interface I had a SPI + 2 wire (4 wires) that I was going to use in a future kit design. I tied RW to gnd but used the 8 bit mode and standard mode 1 SPI . The E line was CS and RS was the other wire.

futz · 30th May 2008, 06:32 AM

Quote:

Originally Posted by BaCaRdi

Ok now I need to start using c again too...lol Damn that learning curve!

Ya, I swore off C many years ago. Went back to assembler and wouldn't touch C. I remembered hating it.

Then the dsPIC kind of forced me to get back into C programming and I realized I didn't hate it as much as I had remembered. Lately I'm doing nothing but C.

Quote:

I really like that 2-wire LCD interface!

Me too. Think I'll build a board or two with 2-wire LCD circuits that I can plug into any PIC board or breadboard I'm using when I want a quick, easy LCD.

BaCaRdi · 30th May 2008, 06:35 AM

Very nice, I am too much a beginner to design anything nifty yet, hope to be their soon. Just a hobby as of now, but never know.

Maybe I will have to switch to that C complier, I am using ME's Pascal version right now, just because programed in pascal for a while so easier transition for me atm. I do allot in Linux in C of course mostly old school hacking, aka patching code..lol I also have their EasyPIC 5 board, and I like it allot, but as a company I think they are on the wrong track for the long haul. We'll see

-BaC

futz · 30th May 2008, 06:37 AM

Quote:

Originally Posted by blueroomelectronics

I will say Stella looks familiar

Heh, ya.

Quote:

As for the two wire LCD interface I had a SPI + 2 wire (4 wires) that I was going to use in a future kit design. I tied RW to gnd but used the 8 bit mode and standard mode 1 SPI . The E line was CS and RS was the other wire.

How do you mean?

BaCaRdi · 30th May 2008, 06:44 AM

You talking Stella the drink or the board?..lol

-BaC

futz · 30th May 2008, 06:47 AM

Quote:

Originally Posted by BaCaRdi

You talking Stella the drink or the board?..lol

Stella's a drink? Never heard of it.

BaCaRdi · 30th May 2008, 06:56 AM

OK you pulling my leg or serious;

Belgium beer to be exact.

Well look at the nick and I guess you can tell I used to drink allot maybe that is why I recognized it as a beer. Why did he name it Stella anyways, was he drinking it when he thought of /designed it?..lol

Quote:

Originally Posted by futz

Stella's a drink? Never heard of it.

futz · 30th May 2008, 07:10 AM

Quote:

Originally Posted by BaCaRdi

OK you pulling my leg or serious;

Belgium beer to be exact.

Well look at the nick and I guess you can tell I used to drink allot maybe that is why I recognized it as a beer. Why did he name it Stella anyways, was he drinking it when he thought of /designed it?..lol

OH! Stella Artois! Ya, I've drunk it. Not exactly common around here.

He names his boards after women. He has another design named Michelle.

BaCaRdi · 30th May 2008, 09:30 AM

Yep that is it

Ahh, good thing I don't use that naming convention, there be about 30 names and all wouldn't work, just cost more-and-more money...lmao

-BaC

Quote:

Originally Posted by futz

OH! Stella Artois! Ya, I've drunk it. Not exactly common around here.

He names his boards after women. He has another design named Michelle.

blueroomelectronics · 30th May 2008, 01:49 PM

My SPI + 2 LCD design is practical if you have other SPI devices like EEPROM. Since the LCD is in 8bit mode you simply send the data as you would normally to the SPI port.

Mike, K8LH · 30th May 2008, 02:08 PM

That actually looks like a very nice way to do it too, Bill. And much more flexible as an 8-bit latch for other tasks when you don't toggle the LCD 'E' line as you've shown with the 4x4 keypad option. Heck, you could even drive 4 digit 7 segment display (and lots of other things) with that configuration.

Way to go!

futz · 30th May 2008, 03:15 PM

Quote:

Originally Posted by blueroomelectronics

My SPI + 2 LCD design is practical if you have other SPI devices like EEPROM. Since the LCD is in 8bit mode you simply send the data as you would normally to the SPI port.

Hey! That's kind of cool. I have some 164's here I think. Must try it.

BaCaRdi · 2nd June 2008, 07:18 PM

Very nice Bill, that is definitely going in my notes, love to free up some i/o's.

Thanks again!
-BaC

Quote:

Originally Posted by blueroomelectronics

My SPI + 2 LCD design is practical if you have other SPI devices like EEPROM. Since the LCD is in 8bit mode you simply send the data as you would normally to the SPI port.

Mike, K8LH · 4th June 2008, 03:37 PM

Quote:

Originally Posted by blueroomelectronics

My SPI + 2 LCD design is practical if you have other SPI devices like EEPROM. Since the LCD is in 8bit mode you simply send the data as you would normally to the SPI port.

Bill,

I was just looking at the timing diagrams for SPI and I was wondering when you would strobe the E line on the LCD?

Would you monitor the TRMT flag in the TXSTA register after sending an SPI byte to insure that all 8 bits have been streamed out and latched into the '164 before sending the E strobe signal?

Mike

blueroomelectronics · 5th June 2008, 05:19 AM

You'd have to wait either a delay depending on how fast your SPI bus is running or wait for the TRMT flag.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar
Title	Starter	Forum	Replies	Latest
College Degree: A Complete Waste so far	DigiTan	Chit-Chat	150	11th August 2008 07:14 PM
math.h and lib for BoostC?	futz	Micro Controllers	3	31st March 2008 06:29 AM
Symbol ?	ATSRND	General Electronics Chat	1	9th January 2008 04:05 AM
Final Year Electronics Degree Project	rgraj	Electronic Projects Design/Ideas/Reviews	2	25th March 2006 05:19 PM
What does this symbol mean?	DJ_ReL@X!	General Electronics Chat	6	24th October 2004 01:01 AM

30th May 2008, 06:28 AM	#16
blueroomelectronics	I will say Stella looks familiar As for the two wire LCD interface I had a SPI + 2 wire (4 wires) that I was going to use in a future kit design. I tied RW to gnd but used the 8 bit mode and standard mode 1 SPI . The E line was CS and RS was the other wire. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com/

30th May 2008, 06:35 AM	#18
BaCaRdi	Very nice, I am too much a beginner to design anything nifty yet, hope to be their soon. Just a hobby as of now, but never know. Maybe I will have to switch to that C complier, I am using ME's Pascal version right now, just because programed in pascal for a while so easier transition for me atm. I do allot in Linux in C of course mostly old school hacking, aka patching code..lol I also have their EasyPIC 5 board, and I like it allot, but as a company I think they are on the wrong track for the long haul. We'll see -BaC __________________ Error[888] "while trying to load":[reality.sh] kernel: [Panic!]...{Universe has been Modified!}... Information Underground - Have you got the Bollox?

30th May 2008, 06:44 AM	#20
BaCaRdi	You talking Stella the drink or the board?..lol -BaC __________________ Error[888] "while trying to load":[reality.sh] kernel: [Panic!]...{Universe has been Modified!}... Information Underground - Have you got the Bollox?

30th May 2008, 01:49 PM	#25
blueroomelectronics	My SPI + 2 LCD design is practical if you have other SPI devices like EEPROM. Since the LCD is in 8bit mode you simply send the data as you would normally to the SPI port. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com/

30th May 2008, 02:08 PM	#26
Mike, K8LH	That actually looks like a very nice way to do it too, Bill. And much more flexible as an 8-bit latch for other tasks when you don't toggle the LCD 'E' line as you've shown with the 4x4 keypad option. Heck, you could even drive 4 digit 7 segment display (and lots of other things) with that configuration. Way to go! Last edited by Mike, K8LH; 30th May 2008 at 02:14 PM.

5th June 2008, 05:19 AM	#30
blueroomelectronics	You'd have to wait either a delay depending on how fast your SPI bus is running or wait for the TRMT flag. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com/