IMX8QXP

shalanyang — Fri, 19 Apr 2019 07:00:26 GMT

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 ?

Re: IMX8QXP

Yuri — Mon, 22 Apr 2019 07:56:17 GMT

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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