Search found 105 matches

by atomicdog
Thu Nov 26, 2015 9:17 am
Forum: Developer Discussions
Topic: eeprom
Replies: 28
Views: 5608

Re: eeprom

I haven't worked with this code base in a long time but it looks like you're using two different I2C libraries to me. If you're using CPAL it seems like all the I2C function should start with CPAL_ ? What is I2C1_DEV? Doing a quick look at the functions it doesn't seem to make sense to pass in I2C1_...
by atomicdog
Wed Nov 25, 2015 6:51 pm
Forum: Developer Discussions
Topic: eeprom
Replies: 28
Views: 5608

Re: eeprom

Is the read during a setup/init of the I2C device or are you just testing if it works by doing a random read?

Some I2C devices need to be setup up properly before they respond, so if you just tried to read a random register it wouldn't respond.
by atomicdog
Tue Nov 03, 2015 4:56 am
Forum: Developer Discussions
Topic: eeprom
Replies: 28
Views: 5608

Re: eeprom

But SCL pin is only on around 0.04V so it looks like its shorted.

Is there a way to fix this?
Check for shorts near the expansion port. Either there's a solder short or one of the IC's is holding down the SCL line, which may mean the IC is dead.
by atomicdog
Tue Nov 03, 2015 4:32 am
Forum: Developer Discussions
Topic: accessing i2c-interface of the STM32F4
Replies: 11
Views: 4252

Re: accessing i2c-interface of the STM32F4

Che. wrote:
Do you have an example for an i2c analyser for me? I cant quite imagine what that looks like. Possibly an oscilloscope?
The Aardvark is one. I'm sure there's cheaper ones but I like the Aardvark a lot.

You can use an O-scope of course but it's very tedious work that way.
by atomicdog
Tue Dec 23, 2014 1:21 am
Forum: General discussions
Topic: xbox 360 to pc
Replies: 7
Views: 4009

Re: xbox 360 to pc

You need a usb-to-rf dongle in order to use the xbox 360 wireless controller with a PC.
I bought a knock-off from eBay, which works OK, since the 'Official' one cost more then I wanted to spend.
by atomicdog
Mon Jan 27, 2014 5:26 pm
Forum: Bitcraze
Topic: Hello there
Replies: 1
Views: 1451

Re: Hello there

8-)
by atomicdog
Thu Jan 16, 2014 10:46 pm
Forum: General discussions
Topic: Power and Ground to Crazyradio
Replies: 5
Views: 3555

Re: Power and Ground to Crazyradio

The wiki has the schematic.
The connector has 3.3V and ground.
by atomicdog
Fri Jan 10, 2014 7:31 pm
Forum: Developer discussions
Topic: Using Crazyradio
Replies: 1
Views: 1592

Re: Using Crazyradio

Check out the wiki.
by atomicdog
Thu Jan 09, 2014 4:11 am
Forum: Support
Topic: Crazyflie spins uncontrollably
Replies: 17
Views: 6054

Re: Crazyflie spins uncontrollably

It looks like you have the props reversed. What you have on M1/M3 should be on M2/M4, and then return the motor wires to match the assembly instructions.
by atomicdog
Tue Jan 07, 2014 6:55 am
Forum: Support
Topic: Overcharging
Replies: 4
Views: 1537

Re: Overcharging

Yeah, it's safe, since there is an IC that manages the power and charges the battery.