I am designing a PCB which uses the STM32F446 MCU. I have the first revision done and working. But I am wondering if all the pull-up and -down resistors on the board can be excluded and use the internals instead?
The board has the following components connected with pull up/down:
->Micro SD card in SPI mode
->UART connection with other board
When should you use external resistors and when can you rely on the internals?
Thank you for any thoughts on the topic.