NUCLEO-F767ZI SPI Ringing Observed

[yuva]

Hello Team,

We have Purchased the NUCLEO-F767ZI Eval board for our board bring up activity.

We have configured the SPI with 15Mhz, i can see lot of ringing from the EVAL board which is more than 4 to 4.5V at Clock and MOSI lines can you look into it, any solution for this?

We have observed that at the output of the EVAL board no other devices connected to the Eval board.

[TDK]

Some things you can do:

• Add series resistors or termination resistors.
• Lower pin speed.
• Ignore it.

It's hard to measure overshoot accurately.

[yuva]

Hi,

We are using the SPI lines for Display and that display has the maximum core capability of 4V even for logic levels.

We have tried adding a 20E series resistor in the SPI, 2 displays have gone bad no response from the display, so need to check something can be done for that.