Prior to building and downloading your VI to the Mobile device, you must. Sep 28, Can you read 2 bytes from register 0x1F and confirm that you receive 0x? The subsequent read gives you the contents of register 0, because that is the current register pointer. Hello everyone, I have a small problem with SPI communication. Menu Search through millions of questions and answers User. Do you have another question?

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For all TMP products, the first byte written is the register pointer. Ask a related question What is a related question? Is the data I am reading correct? Can you read 2 bytes from register 0x1F and confirm that you receive 0x? If my assumption is correct, you are setting the register pointer to 0x00, bi then attempting to write 0x1F to the upper 8 bits of this 16 bit register.

Go to Support forums. It contains installation and configuration information, function reference for a. After re- wiring it’ s started working, maybe some bad connectivity between wire and port. The write and read are separate I2C transactions.

This thread has been locked. In reply to Mark Keranen: However, register 0 is the read-only register Sensor Voltage, so the device discards the data you attempted to write to it.


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TMP007: Control with LabVIEW

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Mentions Tags More Cancel. The goal of verification measurements was to determine the actual sensor accuracy especially when measuring.

I am currently unable to figure out the following:. Sep 28, Ask a related question Ask a new question.

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X Contents This guide describes how. The newly created question will be automatically linked to this question. I read 2 bytes from register 1F and received 0xFF Any subsequent bytes are data to be written to the specified register. Vi with NI- x I2C. If you have further questions related to this thread, you may click “Ask a related question” below. It appears that you are writing two bytes, and then performing a read.

In order to ensure that you are reading the desired register, you must perform a write transaction with only one byte to set the register pointer.