If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Do not fully understand your question. Hope below information is helpful for you:
Normally, there is 18k ohm internal pull on configuration pins.
In most applications, an external 1k ohm pull-up or pull-down resistor is a good solution when opposing the internal resistor.
If no internal resistor is present, if the internal resistor is disabled, or if the external resistor goes to the same supply as the internal resistor, then an external 10k or 4.7K pull-up or pull-down resistor is a good solution.
A DSP board should be designed to be flexible to allow testing in multiple DSP modes. By configuring the board through selectable pullup/pulldown resistors or switches, it is possible to change system settings during the debug process.
my question is ,among the pins of gpio and reset,those equipped with pullups are applied pulldowns externally,while those with pulldowns internally are applied pullups externally. I'm not sure the necessarity to do so.
If it's for the convenience of debug,i think it's just ok to pull the switches on the evm to apply desired voltage level on the gpio pins. what do you think
