Support

Why am I Missing ACK Signals with the Aardvark I2C/SPI Host Adapter Using the Python API?

Question from the customer:

I am using the Aardvark I2C/SPI Host Adapter to imitate a temperature sensor on an I2C bus and am experiencing problems with request replies. I am using the Python API to reply to I2C requests. Everything seems to work fine until I decrease the delay between the requests to 1 ms.

The ACK signal is not bein...

How Do I Quickly Resume Using the Aardvark I2C/SPI Host Adapter when the Application is Restarted?

Question from the Customer:

I am writing a program to detect multiple Aardvark I2C/SPI Host Adapters and connect to them.

I want to ensure that when the application fails and is restarted, it can connect to the Aardvark adapters that were open and working. This is where I am having issues:

  • If I write some buggy application code tha...

How Do I Set Up the Timing for SPI Slave and SPI Master Devices to Communicate?

Question from the Customer:

I am streaming 5.56 MHz SPI data over the MOSI line. I am using the Aardvark I2C/SPI Host Adapter as the slave device in SPI + GPIO mode with the Control Center Serial Software. My problem is I do not see data at either 4 MHz or 8 MHz in the transaction log window.  I see that the master sends out dat...

Which Aardvark I2C/SPI Host Adapter Pins Can Be Made Available for GPIO Signals and How Are They Controlled?

Question from the Customer:

I am starting to use the Aardvark I2C/SPI Host Adapter and I have some questions about the GPIO pins, including how to program them with your software. I am using the Aardvark adapter with an I2C device.

  • Can you provide guidelines for configuring Aardvark adapter's MISO pin as an output and setting the l...

How Many Promira Serial Platforms Can I Run Simultaneously and How Many SPI Target Devices Can Be Driven?

Question from the Customer:

We are looking to use two Promira Serial Platforms to drive multiple SPI target devices from the same computer.

  • How can we best control two Promira platforms? Which software applications would work best? We are running several tests and gathering a lot of data per test run.
  • How many target devices can each...

How Do I Pass Data Arrays using VBA with the Aardvark I2C/SPI Host Adapter?

Question from the Customer:

I am using the Aardvark I2C/SPI Host Adapter with an Excel VBA (32-bit Excel) script. I have questions about using the function aa_i2c_read for data arrays:

If I have the array of data_in defined in Integer type (i.e. Dim data(512) As Integer), would I have the problem to pass my data array of Intege...