Post Created date
Pulse counting problem
theusch wrote:Quote: Any simple idea to detect the object is presence? Set up a timer-as-counter using a Tn pin. Periodically, examine the count and see if it below the...
Monday, 1 November 2010 - 15:07
Pulse counting problem
I also thought abt using PCINT, but no object 1-0-1-0-1-0 will continue to send interrupt, which I dont want. What I want is 1-1-1-1-1-1-1 to send interrupt. How to do that?
Monday, 1 November 2010 - 14:53
Pulse counting problem
if (prevPin1==prevPin2 && prevPin2==prevPin3 && prevPin3==prevPin4 && prevPin1==1) count++; prevPin1=currentPin; prevPin2=prevPin1; prevPin3=prevPin2; prevPin4=prevPin3; Not...
Monday, 1 November 2010 - 14:41
out growing 8 bit AVR?
I heard NXP is releasing an LPC based on ARM Cortex M4 with single floating point unit! Which means it can do real time signal processing. Will get a sample as soon as they...
Saturday, 30 October 2010 - 15:07
out growing 8 bit AVR?
Try NXP LPC xpresso. I have one LPC1768 Xpresso board with me. Really a cool board.
Saturday, 30 October 2010 - 14:09
max232 for rs232
If you want to use RS232, then you must connect the MAX232 to your PD0 and PD1, else, you can use it as TTL UART. Many devices operated as TTL UART, so it depends what you want to...
Saturday, 30 October 2010 - 05:01
Wiznet812MJ cold start problem
Problem solved! Thanks anyway... Weird, everytime I posted here, I can solve the problem in 5 min AFTER I post it...AVRFreaks forum got some divine power? Haha....Happy, job done...
Saturday, 30 October 2010 - 04:47
How to write an advanced menu system in C
steve17 wrote:so I wrote my own, in C++. C++? Are you using ARM?
Saturday, 30 October 2010 - 04:36
prevent EEPROM data corruption at power-off?
js wrote:Have a LARGE reservoir cap before the regulator and some fast way of detecting power loss (again before the regulator) and raise an interrupt. A cap of the correct size...
Monday, 25 October 2010 - 04:56
prevent EEPROM data corruption at power-off?
Why dont u use CRC byte. Say u have 6 data bytes, add 1 more byte for CRC, total 7 bytes. Then your program will know if any corruption by checking the CRC bytes.
Monday, 25 October 2010 - 04:53
Wiznet812MJ UDP problem
A simple way is to use ping. Ping to a few known good servers, if ALL no reply, it means the PHY link is down.
Monday, 25 October 2010 - 03:54
Wiznet812MJ UDP problem
Thanks clawson, problem solved! :) It was due to timing issue...
Sunday, 24 October 2010 - 16:34