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Part Number: HDC1010
I am using HDC1010 with Xilinx Spartan6 FPGA and I am trying access it through I2C.
When i send slave address(0x40), then a NACK is coming from slave(HDC1010).
Do any settings needs to done before accessing I2C with slave adddress?
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In reply to Amit Ashara:
Hello Sir, Is the NAK coming for the first transaction for Slave address of 0x40 or for every transaction?
Yes, NAK is coming in both read/write transaction. Also can you please provide the information 1. ADDR0-1 pin connection in your schematic
ADDR0-1 - Both are connected to ground. 2. Did you perform a check of all the Slave Address to make sure it is not a lose soldering
Yes, We have checked.3. Is this happening on every system or just one of the units?
we have only one board, because its prototype for us.
In reply to Akarsh Agrawal:
pl. find the attached schematic & scope snapshot.
Also we have changed the device with new one on the board, but still we get NAK.
Pl. do help.
Sir, as per datasheet my start conditions seems to be correct, if you thing their is any problem in start condition,pl. correct me.
Also tell me, to start this device any power on sequence or any initialization is required?
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