SPI CLK voltage level not correct in TC387

[Preth123]

Hi,

I am trying to run the sample code for SPI for TC397 from below link in TC 387 board.

https://github.com/Infineon/AURIX_code_examples/tree/master/code_examples/SPI_DMA_1_KIT_TC397_TFT

The voltage level on CLK, MOSI pins are expected to be 5V but its only coming around 3 V.

May I know the reason for this please?

[Nambi]

Hi,

I think you are using KIT_A2G_TC387_3V3_TFT at your end. If not, please let us know the exact kit used at your end.

In the following link, you can refer to the section "3.2 Power Supply" on the possible I/O voltage on your board. You can check the voltage at pin "V_UC" from the connectors X102 or X103 in your board to understand if it is operating at 3.3V or 5V. You can find details about the connectors in the section "6 Connector Pin Assignment".

https://www.infineon.com/dgdl/Infineon-ApplicationKitManual_TC3X7-UM-v02_00-EN.pdf?fileId=5546d46269...

Best Regards.

[Preth123 · Accepted solution]

Thanks for your guidance . I have checked the schematic and we had to power on a pin to get the 5V. 

Now everything is working fine. 

Regards,

Preth123