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IMX8QXP

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Contributor II

how many uarts in imxqxp(imx8qxp support) ? Include scufw+seco+atf(tee)+m4+uboot,and they have some relationship between them, who could tell me ?

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NXP TechSupport
NXP TechSupport

Hello,

 

  

  According to Figure 1 (i.MX 8QuadXPlus/8DualXPlus System Block Diagram) of the i.MX 8X Datasheet(s),

there are the following UARTs: User CM4 UART, SCU CM4 UART, and 4 shared UARTs.

 

 Section 5.1 (Overview) of the i.MX 8DualXPlus/8QuadXPlus Reference Manual describes boot process.

 

  The i.MX 8QuadXPlus MEK Board has two independent UART Ports (UART0, M40_UART0) for debugging:

UART0_TX & UART0_RX are used to output serial debugging information for A35-core.

M40_UART0_TX & M40_UART0_RX are used to output serial debugging information for M4-core.

 

 

Have a great day,

Yuri

 

 

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