Re: [Paparazzi-devel] help on I2c address

[Eric Parsonage]

Hi JH

are you sure you have the wiring correct ? it is simple to get data and clock lines swapped on I2C devices.  I would suggest next time you try that you find on of the esc that does get a green light and swap it with one that doesn’t. If now it doesn’t get a green light then the wiring must be faulty.

Regards

Eric 

On 09/06/2011, at 2:32 PM, J H wrote:

hello, everyone:
     I begin working on Paparazzi Booz Quadrotor project recently. BL-Ctrl is mikrokopter V1.1, when I assign the I2C address to the four BL-Ctrl in the  Booz_quadro.xml by like <define name="ADDR" value="{ 0x54,0x5A, 0x5C, 0x5E}" /> , only two or three BL-Ctrl green lights solid on with red lights off, still have one or two with both green and red lights on. I tried many time by changing the address, and have changed the BL-Ctrls, but still couldn't make all of the four one green light on, could you tell me the reason and what should I do?
    Best Regards!
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