2022-04-13 1:24 AM
I'm using STM32L053 to send an SPI data to other compenet.
i don't know if the data has been send or not. I don't have an oscilloscope to see the signal.
what should i do to know if the data is sent correctly or not?
2022-04-13 5:12 AM
External USB logic analyzers start at $10. Or you build one using a FTDI chip https://sigrok.org/wiki/FTDI-LA.
You could read the SPI back by using a 2nd SPI port on the MCU. But even then, you cannot tell if the data on the wire is exactly as it should be.
hth
KnarfB
2022-04-13 5:28 AM
thank you knarfB,
