Maxim MXB7843 - SPI?

Forum 2005-2010 (read only) Hardware Interfacing
1

Hi. I am Vincent. I have a somewhat good experience in programming, and an 'okay' one in electronics.

I am now facing a challenge, witch is to connect a MXB7843 via SPI to my arduino. I have no freaking idea how to do the code to run this. This is where I come here to ask... how?

I have the datasheet in front of me; and I see this little diagram.

From what I can see I need ~7 wires or so:
VDD, GND, CS, DCLK, DOUT, DIN, BUSY.
Page 18, i see "SPI Interface".
Page 17, is the only info about SPI "The MXB7843 can be used with the QSPI/SPI interface using the circuit in Figure 12 with CPOL = 0 and CPHA = 0. This interface can be programmed to do a conversion on any analog input of the MXB7843"

Can anyone give me some help here?

2

Vincent:

While I don't know the MXB7843 I have spent some time getting SPI to work with the MAX7456 OSD chip. Taking a quick look at the data sheet they appear to have a similar interface, set a couple of values in registers, set the CS line, clock the data in. Check out some of the code for the Arduino + MAX7456 in the 'Exhibition' forum. It might help.

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1220054359/0

dfraser