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MCP3021 not working only able to read upper 4 bits

 
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girish2k44



Joined: 12 Oct 2010
Posts: 1
Location: Indore, India

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MCP3021 not working only able to read upper 4 bits
PostPosted: Tue Oct 12, 2010 8:44 am     Reply with quote
Hi there!
I make a code to comunicate with a i2c mcp3021 device.
But I am only able to read read upper 4 bits of ADC and after that it gives NAK bit on next pulse and I am not able to receive any more data.
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Girish
FvM



Joined: 27 Aug 2008
Posts: 2337
Location: Germany

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PostPosted: Tue Oct 12, 2010 9:12 am     Reply with quote
You may want to show the code.
trirath



Joined: 14 Jun 2010
Posts: 20
Location: Pathunthanee Thailand

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PostPosted: Sat Nov 20, 2010 8:24 am     Reply with quote
There are many example code in this forum you can search MCP3202, MCP3204 or MCP32.
Anyway, CCS Complier provided driver in directory Driver MCP3204 and MCP3208 that work. When I adapted to MCP3202 that work fine.
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