Sign in
Search basicx
Subscribe to basicx
basicx by Keywords
Accelerometer | ADC | ADXL | Adxl20 | AVR | BasicStamp | BX-35 | BX28 | BX35 | COM3 | Compiler | Downloader | EEPROM | Electromagnet | GetADC | GP2D1 | GPS | I2C | IDE | Keypad | LCD | LCD+ | MIDI | Motors | Multitasking | Netmedia | Networking | PCB | PID | PlaySound | PWM | Relays | RTC | Servo | ShiftOut | SitePlayer | SPI | Stack | Timer | USB
Ads
Discussion Groups
See Also
Discussion Groups | BasicX | Re: Digest Number 1762
Discussion forum for the BasicX family of microcontroller chips.
Re: Digest Number 1762 - andrew meehan - Sep 7 0:29:00 2004
|
hi, i hope this helps. changing the duty cycle changes the length of time a pulse is pos. or neg. , but NOT the speed of the frequency or in your case the number of readings a second. try to change the frequency to a higher amount. this is what i know about duty cycles but i haven't worked with the ADXL202, keep this in mind. > Message: 1 > Date: Mon, 06 Sep 2004 16:22:13 -0000 > From: "larzyharzy" <> > Subject: adxl202 - improving reading rate > > I am experimenting with an ADXL202. > > I have been testing it with the two example programs > DisplayAngle and > DisplayAcceleration. > > My problem is that I only get 5 - 6 readings a > second. > > I have tried changing the resistor that controls the > duty cycle for the accelerometer. > The lowest value I have tried is 125k ohm, which > should set the duty cycly to 1 ms > according to the datasheet for the ADXL202. > > Why do I only get so few readings a second? Is it > because of the calculations the BX24 > has to perform? > > /lars __________________________________ |
|
|
controlSUITE™ software. Comprehensive. Intuitive. Optimized.
Real-world software for real-time control. Details Here!
(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )
Re: Digest Number 1762 - andrew meehan - Sep 7 15:08:00 2004
|
hi, i hope this helps. changing the duty cycle changes the length of time a pulse is pos. or neg. , but NOT the speed of the frequency or in your case the number of readings a second. try to change the frequency to a higher amount. this is what i know about duty cycles but i haven't worked with the ADXL202, keep this in mind. > Message: 1 > Date: Mon, 06 Sep 2004 16:22:13 -0000 > From: "larzyharzy" <> > Subject: adxl202 - improving reading rate > > I am experimenting with an ADXL202. > > I have been testing it with the two example programs > DisplayAngle and > DisplayAcceleration. > > My problem is that I only get 5 - 6 readings a > second. > > I have tried changing the resistor that controls the > duty cycle for the accelerometer. > The lowest value I have tried is 125k ohm, which > should set the duty cycly to 1 ms > according to the datasheet for the ADXL202. > > Why do I only get so few readings a second? Is it > because of the calculations the BX24 > has to perform? > > /lars __________________________________ |
(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )