Hi,

I haven't used this chip but as I interpret the datasheet you should set th=
e=20
register at address 0x2d (bits 15-8) to data 0x01 (bits 7-0) on device 0. B=
it 0=20
determines if the factory set address or the user set address should be use=
d.=20
See table 13 on page 15 in the datasheet.

The datasheet seems a bit misleading since Table 7 on page 13 says N/A for =
the=20
self adressing register but table 13 says something else.

/Ruben

> First off, I'm sorry to wake the list up.  Haven't seen anything for a=20
> few days.  I'm throwing this in [EE] because I'm having troubles with=20
> this IC, not the PIC32MX driving it.
>=20
> Does anybody on the list have any experience with this chip?
>=20
> <http://ams.com/eng/Products/Lighting-Management/LED-Driver-ICs/AS1117>
>=20
> The I2C comms, keys and LEDs all work fine.  My questions are about the=20
> self-addressing mode.  I have qty. 2 of these controllers attached to=20
> the PICs I2C1 port.  First thing after power up you send the data=20
> sequence ' 0x00, 0x2d' (or possibly '0x00,0x2d,0x00') and the=20
> controllers are supposed to look at their key inputs for SEGF and/or=20
> SEGG open/shorted to set an address of 0 to 3.  I've tried multiple=20
> combinations of addresses and self-addressing commands but both=20
> controllers only respond to data sent to address 0, the default address.
>=20
> Thanks,
> Bill
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>=20
>=20
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>=20



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