I have a IMX6 setup and use TTL-RS232-3v3 connect to serial console port, the boot up couldn’t stop as I press any key on keyboard, it kept booting from mmc and I couldn’t update firmware. I tried to turn on echo on the terminal and saw the input, but serial console couldn’t take any input from keyboard. I followed the instruction but it stuck here, not sure what was wrong on the setup. I also tried short the TX with RX lines, it showed me more booting information till the prompt for login.
"Digi Embedded Yocto 2.0-r4 ccimx6sbc /dev/ttymxc3
ccimx6sbc login: "
Here is the information from the booting:
U-Boot dub-2015.04-r5.4+gdbf8184 (Jun 01 2017 - 20:17:59)
CPU: Freescale i.MX6Q rev1.5 1200 MHz (running at 792 MHz)
CPU: Extended Commercial temperature grade (-20C to 105C) at 42C
Reset cause: POR
I2C: ready
DRAM: 1 GiB
MMC: FSL_SDHC: 0 (eMMC), FSL_SDHC: 1
In: serial
Out: serial
Err: serial
ConnectCore 6 SOM variant 0x02: Consumer quad-core 1.2GHz, 4GB eMMC, 1GB DDR3, -20/+70C, Wireless, Bluetooth, Kinetis
Board: ConnectCore 6 SBC, version 3, ID 129
Boot device: MMC4
PMIC: DA9063, Device: 0x61, Variant: 0x60, Customer: 0x00, Config: 0x56
t: FEC [PRIME]
0t any key to stop autoboot: 1
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