RT1064: does SWO trace need external component?

jason_lo — Wed, 26 Aug 2020 10:04:15 GMT

For RT1064, I would like to use the SWO trace function, located on pin GPIO_AD_B0_10. Does this require any external component such as pull-up or pull-down resistor? I do not see this information anywhere in RT1064 documentation.

The reason I ask is because on RT1064 EVK, GPIO_AD_B0_10 is used as an interrupt signal for Ethernet (net "ENET_INT") which has a 1k pull-up resistor on it.

Regards,

Jason

Re: RT1064: does SWO trace need external component?

Sabina_Bruce — Mon, 31 Aug 2020 21:50:16 GMT

Hello Jason,

Hope you are doing well.

You may refer to this document for debug considerations. For the SWO you must use a pull-up for better performance.

Design-Considerations-for-Debug

Best Regards,

Sabina

i.MX RT Crossover MCUsのトピックRe: RT1064: does SWO trace need external component?

RT1064: does SWO trace need external component?

Re: RT1064: does SWO trace need external component?