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  Topic: HW UART comms problem URGENT help required...
shahidmk

Replies: 5
Views: 1201

PostForum: BASCOM-AVR Archive   Posted: Sun Oct 16, 2011 3:26 pm   Subject: HW UART comms problem URGENT help required...
Hi All,

I have a ublox GPS connected to atmega1284p. I am trying out the attached code for testing comms with the GPS. but I am not getting any data throughput, inkey returns "0" . I only get bits ...
  Topic: Fusebits problem in atmega 1284p
shahidmk

Replies: 7
Views: 828

PostForum: AVR   Posted: Mon Apr 25, 2011 8:29 am   Subject: Fusebits problem in atmega 1284p
Thank you all who helped me in their own way. I managed to get the problem solved with all your help.

It turns out that the 1284p is extremely touchy about the type of external crystal attached to ...
  Topic: Fusebits problem in atmega 1284p
shahidmk

Replies: 7
Views: 828

PostForum: AVR   Posted: Mon Apr 25, 2011 6:32 am   Subject: Fusebits problem in atmega 1284p
@Mark,
just tried programming the fusebits using bascom's programmer. The first time around I can program the fusebits with success but when I tried to read them again I got the READLB error and the ...
  Topic: Fusebits problem in atmega 1284p
shahidmk

Replies: 7
Views: 828

PostForum: AVR   Posted: Sun Apr 24, 2011 7:34 am   Subject: Fusebits problem in atmega 1284p
@mark,
thanks I will try the bascom programmer to try to program the fusebits an report back...

ust out of curosity can the onfiguration files used by the programmers used contain an error as most ...
  Topic: Fusebits problem in atmega 1284p
shahidmk

Replies: 7
Views: 828

PostForum: AVR   Posted: Sat Apr 23, 2011 6:59 pm   Subject: Fusebits problem in atmega 1284p
@hubert.. the thing is that if I replace the 1284p with the 324p in the same circuit all is well... and I can program the Low fuse... I have even tried a 644p in the same circuit. and that seems to wo ...
  Topic: Fusebits problem in atmega 1284p
shahidmk

Replies: 7
Views: 828

PostForum: AVR   Posted: Sat Apr 23, 2011 9:05 am   Subject: Fusebits problem in atmega 1284p
I seem to be having a problem setting fuses up for an atmega1284p
the 1284p has a 20MHz external crystal. If I try to set up the low fuse to anything but internal osc. settings. The avr bricks... the ...
  Topic: 4 inputs, 2 outputs, bascom solution required
shahidmk

Replies: 4
Views: 602

PostForum: BASCOM-AVR Archive   Posted: Thu Apr 07, 2011 10:17 am   Subject: 4 inputs, 2 outputs, bascom solution required
Thanks for the input Hubert..

am not looking for code that solves my problem and while I sit on my laurels..
I am looking for example logic that tells me how to :-

1: measure the pulse to make ...
  Topic: 4 inputs, 2 outputs, bascom solution required
shahidmk

Replies: 4
Views: 602

PostForum: BASCOM-AVR Archive   Posted: Thu Apr 07, 2011 7:19 am   Subject: 4 inputs, 2 outputs, bascom solution required
Hi all,

I have 4 inputs all at 10Hz(encoder pulse). and 2 outputs (LEDs).

The logic is:-

if signalA=10Hz then LedA = pulse at 10Hz and LedB = off
if signalB=10Hz then LedA = ON and LedB = O ...
  Topic: Signal transmission before or after A/D conversion...
shahidmk

Replies: 4
Views: 1775

PostForum: Various   Posted: Wed Nov 03, 2010 2:44 am   Subject: Signal transmission before or after A/D conversion...
@frankeman,
Thank you fo your reply, My question related to the length of the wire which would connect the sensor to th signal processing circuit. Perhaps I didn't word it exactly as to what I was as ...
  Topic: Signal transmission before or after A/D conversion...
shahidmk

Replies: 4
Views: 1775

PostForum: Various   Posted: Tue Nov 02, 2010 4:49 am   Subject: Signal transmission before or after A/D conversion...
A general question. I have an analog sensor that will go through an I to V conversion before being submitted to an AVR ADC. The max distance is 65 inches. Is it bettr to run the cable straight from th ...
  Topic: Wanted - S5991-01 or any 10X10 psd for that matter
shahidmk

Replies: 0
Views: 772

PostForum: Various   Posted: Sun Oct 24, 2010 4:16 pm   Subject: Wanted - S5991-01 or any 10X10 psd for that matter
Any ideas where I can get a hamamtsu S5991-01 or any two dimensional PSD with 10x10mm effeective area under 100 usd. I would be willing to pay for it to be shipped to me in Kentucky if anyone has one ...
  Topic: Fastest way of communicating between two AVR's
shahidmk

Replies: 4
Views: 578

PostForum: BASCOM-AVR Archive   Posted: Tue Oct 19, 2010 3:38 am   Subject: Fastest way of communicating between two AVR's
Thank you 'SIX1' for that, I will do some experiments and provide feedback to your help!

cheers
  Topic: Fastest way of communicating between two AVR's
shahidmk

Replies: 4
Views: 578

PostForum: BASCOM-AVR Archive   Posted: Mon Oct 18, 2010 2:29 pm   Subject: Fastest way of communicating between two AVR's
uni-driectional. just pushing a lot of processed data to another 328 to handle writes to an SD and allow RS232 access from the PC...

No bidirectional stuff.

any code examples!!!!!
  Topic: Fastest way of communicating between two AVR's
shahidmk

Replies: 4
Views: 578

PostForum: BASCOM-AVR Archive   Posted: Mon Oct 18, 2010 12:31 pm   Subject: Fastest way of communicating between two AVR's
Any suggestions to what would be the fastest possible way of communications between two ATMEGA328P's.

Somewhere I read about parallel data transfer between two AVR's but am unable to find any more ...
  Topic: Recording multiple inputs in smallest time frame possible..
shahidmk

Replies: 5
Views: 579

PostForum: BASCOM-AVR Archive   Posted: Sun Oct 17, 2010 6:53 am   Subject: Recording multiple inputs in smallest time frame possible..
the GPS is formula1 racing grade 20Hz. But that will only be used to verify the data obtained/calculated from other inputs.

The MCU clock is 20MHz. The input trigger clock is from the RTC at 32.768 ...
 
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