Subject:
|
Re: LCD SCREEN STUFF
|
Newsgroups:
|
lugnet.robotics.handyboard
|
Date:
|
Wed, 23 Oct 1996 12:46:34 GMT
|
Original-From:
|
Mike Ross <mross@outland.jsc.nasa.NOMORESPAMgov>
|
Viewed:
|
1546 times
|
| |
|
|
On Tue, 22 Oct 1996, Joe Doubek wrote:
> I have heard that there is a way to turn of the LCD screen on the
> handyboard to save clock cycles. I have looked all around but cannot
> seem to find any info on how to do this. Is this possible and if so does
> it speed up the handyboard any? Someone told me it speeds the board up
> about 8% even if nothing is being printed to the screen.
Here's the pertinent code in the lib_hb.c file:
/* printing to the LCD: **WARNING** printf's will wedge once the print
buffer becomes full if system printing is disabled */
void system_print_on() {bit_set(0x39, 0b00000001);}
void system_print_off() {bit_clear(0x39, 0b00000001);}
There's more info in the comments in the code, check out the file.
* Michael L. Ross/C33 | Lockheed Engineering & Sciences Co.****
* Robotics Department | 2400 Nasa Rd. 1, Houston, TX 77058*****
*(713)333-7094 voice,(713)333-6071 fax*#include <disclaimer.h>*
* Finger me for my public key. mross@outland.jsc.nasa.gov ****
* If you weren't a socialist in your twenties, you had no heart.
* If you weren't a conservative by your thirties, you have no brain.
|
|
Message is in Reply To:
 | | LCD SCREEN STUFF
|
| I have heard that there is a way to turn of the LCD screen on the handyboard to save clock cycles. I have looked all around but cannot seem to find any info on how to do this. Is this possible and if so does it speed up the handyboard any? Someone (...) (28 years ago, 22-Oct-96, to lugnet.robotics.handyboard)
|
2 Messages in This Thread:
 
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
