data collection with arduino using python

[duzogrenci]

Hi all,

I am collection data with arduino using pyserial. But I am having a problem. I am collecting data from FPGA which has 23 ring oscilators in it. I am collecting the ring oscillator frequency. I am sending the data serially. Each frequency information is 32 bit. I am sending 32 bit and receiving it using pyserial and writing it. I need to download same bitfile 3 times and collect the same data 3 times basically. But After the first measurements and collecting the data. Some of the LSB bits of the 32 bit data comes to MSB place. So, basically, for the other 2 data collection process, bit order changing. I don't really know what the problem could be. Do you have any idea ?

 

[pavans2510]

Just check whether baud rate is configured properly on ur comp and on arduino. You can also add start and stop bits.
Have a look at below links.

https://github.com/dreed1/ArduinoSerialComms
https://www.stealthcopter.com/blog/2010/02/python-interfacing-with-an-arduino/