i.MX ProcessorsのトピックRe: Imx6 Boot Configuration

Imx6 Boot Configuration

akshatsaraf — Thu, 18 Jun 2015 05:24:38 GMT

Hi,

I am following reference design of Sabre Board for Smart Devices to make a prototype hardware based on Imx6q processor.

I am having a query related to boot configuration of Imx6. In the reference design Boot Configuration3 and Boot Configuration4

signals are pull down by 14.7k resistor. As I don't want to use them, can I leave them floating?

If I will leave them them floating what will happen?

Please suggest me for the same.

Thank you.

Re: Imx6 Boot Configuration

art — Thu, 18 Jun 2015 07:48:23 GMT

When you use the external resistor network (not the silicon fuses) for boot configuration, _all_ of 32 external boot configuration signals must have a definite state. In the other case, the "floating" signals may have a random state during boot, thus, causing a random boot errors. So, the answer is: no, you cannot leave any boot configuration signal floating.

Have a great day,
Artur

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Re: Imx6 Boot Configuration

akshatsaraf — Thu, 18 Jun 2015 10:47:21 GMT

Thank you Artur.

Can I tied them (Boot Configuration 3 and Boot Configuration 4 signals) directly to the ground?

Re: Imx6 Boot Configuration

akshatsaraf — Tue, 23 Jun 2015 11:02:53 GMT

Hi Artur,

Please tell me can I connect Boot Configuration3 and Boot Configuration4 signal to the ground?

Thanks.