请问SPI3的驱动能力默认是多少，最大能调到多少
从pinmux来看，是有drive0和1两个档位，
请问驱动能力都是多少呢？
Hi zhangwenjing11,
Are you using the devkit or custom board for Thor?
What’s the Jetpack version in use?
The drive strength is not configured in pinmux spreadsheet.
Drive 0/1 in the table means the default(after boot) state High/Low for the GPIO/Output pins.
May I know about your use case? Do you want to use those pins as GPIO or SPI?
Hi, KevinFFF:
Are you using the devkit or custom board for Thor?
=> custom board
What’s the Jetpack version in use?
=> R39.2
Do you want to use those pins as GPIO or SPI?
=> SPI
For SPI3 on Thor, the pinmux exposes two drive settings through DRV_TYPE in Column AY: normal (Disable, 1x driver) and high (Enable, 2x driver).
The pinmux sheet does not provide a direct mA value for these two modes.
If the SPI frequency is above 25 MHz, DRV_TYPE is recommended to be set to Enable (2x) to improve signal integrity and reliability.
Hi, KevinFFF:
Get it.
Thank you for your reply and suggestion.