i.MX ProcessorsのトピックRe: Boot mode Imx8mini

Boot mode Imx8mini

idom — Sun, 26 Jan 2020 17:10:54 GMT

I custome board with IMX8mini.

I have two issues:

1. When boot mode0=0 and boot_mode1=0 the boot sequence does not start,

2. When Boot_mode0=1 or 0 and Boot_mode1=1 boot seqeunce start and finished but only when the UART-USB DBG connected to the terminal.

Re: Boot mode Imx8mini

igorpadykov — Mon, 27 Jan 2020 09:21:19 GMT

Hi Ido

boot mode0=0 and boot_mode1=0 selects boot from fuses, which probably not programmed.

For details one can look at sect.6.1.2.3 Boot From Fuses mode (BOOT_MODE[1:0] = 00b)

i.MX 8M Mini Applications Processor Reference Manual

Best regards
igor
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Re: Boot mode Imx8mini

idom — Mon, 27 Jan 2020 18:35:16 GMT

Hello Igor

With my custom board I have flashed with UUU the original NXP's Android kernel (the NXP default U boot) port(without making any changes to it). So, I suppose that BT_FUSE_SEL should be already programmed similar to the NXP EVM ?