Go Down

Topic: Problem with my lis3lv02dq (Read 858 times) previous topic - next topic


Jan 19, 2011, 08:51 pm Last Edit: Jan 19, 2011, 10:35 pm by trank Reason: 1
Hello everybody,
I have a problem with my sensor lis3lv02dq.
I want to do a function that when you press a button, set to 0 the values of the 3-axis sensor to start from a point of reference.
I'm playing with several values in CTRL_REG2, but I can not reset using the boot.

I leave part of the code of my accelerometer

Code: [Select]

void Sensor_Init(void)
unsigned int xx = 0;
unsigned int yy = 0;
unsigned int zz = 0;
xx= Sensor_RX(WHO_AM_I);
yy= Sensor_RX(CTRL_REG1);
zz= Sensor_RX(CTRL_REG3);
printf(" W: %x 1: %x  2: %x \n", xx, yy, zz);

// war: Sensor_TX(CTRL_REG1, 0x87); // Power on device, enable all axis, and turn off self test
// war: Sensor_TX(CTRL_REG2, 0x45);

//Axel: REG2: 0x65, REG1: 0x47
//Sensor_TX(CTRL_REG2, 0x14);
Sensor_TX(CTRL_REG2, 0x44);
Sensor_TX(CTRL_REG1, 0x87);

  if ((B1) == 0 && b1_flag == 0)          //if B1 pressed
      draw_array32_to_lcd("Calibrate  ");
      b1_flag = 1;
  if ((B1) != 0 && b1_flag != 0)          //if B1 released
      Sensor_TX(CTRL_REG2, 0x14);
      b1_flag = 0;



Do you have a website or URL that points to the datasheet of the sensor, that would be a great help.
Furthermore posting the whole code helps also, please use the # butto so the code appears between the [ code] and [/code] tags
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)


but I can not reset using the boot

What does that mean?

As well as your code, it would be useful to see your debug print output.
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.



You say you are trying to set the values to zero somehow - yet your code seems to simply reboot the chip.

So what exactly are you trying to do and what makes you think its not happening?
[ I will NOT respond to personal messages, I WILL delete them, use the forum please ]


Jan 20, 2011, 08:21 am Last Edit: Jan 20, 2011, 08:23 am by trank Reason: 1
My idea is, when you press B1, display counters are in 0 to start measuring from a reference point.
It is a very simple idea, but I can not.
My problem is, when I press B1, donĀ“t get to set 0

Go Up

Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

via Egeo 16
Torino, 10131