MksTinybee and TMC2209 use uart

I installed Marlin 2 software using tmc2209 drivers on my mkstinybee card and built my own custom 3D printer. I noticed that the strp motors were getting a little hot, so I did some research and learned that I needed to make the UART connections of the tmc2209 drivers. I took into account a few suggestions and the instructions of people who had done this and tried, but I couldn’t succeed. I made connections from the tx and rx pins of the uart2 to the pdn_uart pins of the tmc driver using resistors, but it still didn’t work. It keeps giving the all low error on the M122 code.