Discussion forum for the BasicX family of microcontroller chips.
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I have an ADXL202 accelerometer attached to my BX24. I have things working fairly well. The ADXL is being used as a tiltmeter. When I place it level (x-axis perpindicular to the gravity field) the x-axis output converts to approximatly 6.5 degrees. I have the system set up level to within 1 or 2 degrees and expected to read this as the x-axis tilt. I am unable to figure out what the problem is. Yes I have read the 'Attaching the ADXL202 to a BX24' and have closely followed the code examples. I am using the ADXL202EB (Stamp sized) for my application. I am particulary interested in understanding how to calibrate the accelerometer. I would like to correspond with anyone that has successfully attached a ADXL202 to a BX24. Any enlightenment would be appreciated. Please e-mail me directly PLEASE. TIA Vic ________________________________________________________ Victor Fraenckel - The Windman KC2GUI www.windsway.com Home of the WindReader Electronic Theodolite Read the WIND |
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Good afternoon, I have a rampackb which I'm unable to use correctly with my bx24. From my input queue, I always read the same data as what I had sent in my outbuffer queue. The Tm and Fm pins are tied together, as I will either talk or listen, never both. Is there any trick to getting this to work? I send the sync bit, the command, and high and low address bytes, followed by the data byte. I know Dan B. had mentioned the serial pin (com3) must be in input pullup. Any other tips? Thank you for your help, Paul |
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If the TM and FM pins are tied together (one wire option) then the original command will be echoed in the receive queue. This is because the command is being transmitted out...but since the pins are tied together...the command command comes right back in on the receive pin. You can account for this by using my ClearQueue( ) routine (posted in the files section with the StampMEM utilities) This will clear the inbound queue of the echo. Make a call to ClearQueue( ) just after the pin goes input pull-up and use the time the RamPack is internally fetching data to clear your receive queue and prepare for it to be transmitted. .db. -----Original Message----- From: Paul J. Csonka [mailto:] Sent: Sunday, July 08, 2001 01:32 PM To: BasicX Maillist Subject: [BasicX] RampackB trouble Good afternoon, I have a rampackb which I'm unable to use correctly with my bx24. From my input queue, I always read the same data as what I had sent in my outbuffer queue. The Tm and Fm pins are tied together, as I will either talk or listen, never both. Is there any trick to getting this to work? I send the sync bit, the command, and high and low address bytes, followed by the data byte. I know Dan B. had mentioned the serial pin (com3) must be in input pullup. Any other tips? Thank you for your help, Paul Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. [Non-text portions of this message have been removed] |