i2c/uart: Use low speed to reduce noise

xil-se / xildebug_sw

XilDebug is a CMSIS-DAP compliant debugger, UART bridge and power profiler all in one package.

5 stars 1 forks source link

i2c/uart: Use low speed to reduce noise #74

Closed kbeckmann closed 6 years ago

kbeckmann commented 6 years ago

Using faster speed configuration leads to faster slew rates. This will lead to high frequency noise that we don't want unless we actually transfer data at very high speeds. GPIO_SPEED_FREQ_LOW is specified to support up to 5 MHz.