Tlv 2543 help needed.

mosquito56

· I cannot get the tlv object from the object exchange to work. I am not familiar with asm.

Can anyone· tell me how to setup the pins for the cs,clk, do,di,eoc. The program uses a config.spin which is gibberish to me.

I hooked it up on pins 15-19 as per tlv2543 pub start instructions.

I changed the start to· adc.start(cs,clk,do,di,eoc) with each pin as per instructions.·No luck. Any help apreciated.

I·am using the·8038 for about 6 months so I am familiar· with adc chips but the program has got me lost.

I am using the professional dev board.



Thanx

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······· "What do you mean, it doesn't have any tubes?"
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Timmoore

TLV2543 connections
Vcc (pin 20) and Ref+ (pin 14) 3.3V
Gnd (pin 10) and Ref- (pin 13) 0V
CS (pin 15) Prop
IOClock (pin 18) Prop
Datain (pin 16) Prop
Dataout (pin 17) Prop
EOC (pin 19) Prop
AIN0-10 (pin 1-9,11-12) Analog inputs

the pin numbers on the left are the pins on the tlv2543, when connecting to prop pins, put the prop pins in the right place in start()

mosquito56

· adc.start(config.GetPin(CONFIG#TLV2543_CS),config.GetPin(CONFIG#TLV2543_CLK),{
}·· config.GetPin(CONFIG#TLV2543_DO), config.GetPin(CONFIG#TLV2543_DI),config.GetPin(CONFIG#TLV2543_EOC

This seems to indicate (cs,clk,do,di,eoc). Is this correct? You say put them is right place.

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·······

······· "What do you mean, it doesn't have any tubes?"
······· "No such thing as a dumb question" unless it's on the internet
········

Greg LaPolla

here is how I have done it:

CON

  EOC    = 1                                                                    ' tlv2543 config  EOC Pin
  CLK    = 2                                                                     ' tlv2543 config  CLK Pin
  SDI    = 3                                                                     ' tlv2543 config  SDI Pin
  SDO    = 4                                                                    ' tlv2543 config  SDO Pin
  CS     = 5                                                                     ' tlv2543 config  CS Pin

OBJ
   adc : "TLV2543"                                                            ' Driver for TLV2543    

PUB Main

  adc.start(CS, CLK, SDI, SDO, EOC)                                 ' start TLV2543 driver       
 ...

then you can just use somevar := adc.GetData(x) where x is the channel you want.


Hope that helps


Greg

mosquito56

con

cs=15········· 'chip 15
· do=16········· '···· 16
· di=17········· '···· 17
· clk=18········ '···· 18
· eoc=19········ '···· 19

adc.start(cs,clk,do,di,eoc)

I have di· and do reversed. Thanx

That got it. It's working



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······· "What do you mean, it doesn't have any tubes?"
······· "No such thing as a dumb question" unless it's on the internet


Post Edited (mosquito56) : 8/20/2009 6:35:32 AM GMT