Post Created date
Changing ADC channels (round robin) question
I just posted the relevant parts of main. There is an end to it. Would that 100 ms hurt? I agree I could use ADIF. I tried this and it did not work: #define new_channel 0x04...
Tuesday, 17 November 2009 - 14:59
ISP trouble after migrating to M328P
Thanks,Cliff. I will try to use HV programming to see if this works.
Monday, 16 November 2009 - 14:02
Switching GND through transistor switch
Thanks that makes sense. I will this by setting the AVR o/p pin (non ADC pin) as input.
Monday, 16 November 2009 - 14:01
Can I implement a GPS receiver?
Thanks,Jim. Quote: Importing and displaying maps, which many GPS units do, is challenging as most of the commercial maps for GPS units are proprietary. What if I used Google maps...
Monday, 16 November 2009 - 13:58
Can I implement a GPS receiver?
Thanks for the feedback,JC. That is great for me to start with. I looked at the EM406 and it is a little expensive at $60 a pop. Are there any cheaper ones in the $20-25 range? I...
Monday, 16 November 2009 - 04:33
ISP trouble after migrating to M328P
Sorry that was a typo, I meant M328P. :)
Monday, 16 November 2009 - 03:22
Switching GND through transistor switch
@dak, I can't do that since I am measuring voltage on node A from another device that needs a solid GND. If I understand correctly, I think as David suggests, I may be able to get...
Monday, 16 November 2009 - 03:21
Switching GND through transistor switch
I guess I could use a relay then to switch it to hard GND?
Sunday, 15 November 2009 - 19:59
Switching GND through transistor switch
Ok what I am doing is measuring the voltage at node A with the AVR ADC. When the transistor is off, it is measuring the voltage from another part of the circuit which drives to...
Sunday, 15 November 2009 - 19:59
Switching GND through transistor switch
Thanks for the quick response,Dave. Yes I am trying to pull that line to GND. I have MUX on line A and I am not sure if I can tri-state node A so that I can drive it with the MUX...
Sunday, 15 November 2009 - 19:02
ISP trouble after migrating to M328P
I tried that too. I have tried all possible combinations i.e. setting/resetting the CLKDIV8 fuse, different oscillators and frequencies, programming frequencies, etc. With my M48...
Sunday, 15 November 2009 - 15:28
which mcu is suitable???
Here is a link to the table (it's a little hard to find): [url] http://www.atmel.com/dyn/product... [/url]
Monday, 9 November 2009 - 13:26

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