iMx RT1176 SPI / GPIO pins as Tristate

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iMx RT1176 SPI / GPIO pins as Tristate

514 次查看
HemantrajUndale
Contributor I

I need to configure SPI pins as Tristate

Can anyone support on this ?

Thanks

 

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458 次查看
HemantrajUndale
Contributor I

Thank You @Bio_TICFSL  for your reply.

Actually we have below test scenario,

1. iMX processor (Master 1 SPI) is communicating with IC1(Slave SPI).

2. We need to add one more master in between case 1. So that when Master 2 is communicating with IC1 slave, imx processor Master SPI is in tristate/IDLE/Disable but it should affect communication between additional master 2 and IC1 slave.

At a time only one master will be active.

When we are disabling master 1 iMX processir  SPI then we are seeing that Master 2 is not able to communicate with slave IC1

(We need help to solve this.)

3. This master 1 is imx processor. SPI lines are shared between Master 1 Master 2 and Slave IC1.

4. When Master 2 is connected with Slave IC1 on another setup where imx processor is NOT present then SPI communication is working.

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491 次查看
Bio_TICFSL
NXP TechSupport
NXP TechSupport

Hello

Sorry the GPIO and SPI can not be in TriState but you LPUART and I2C can.

Regards

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