I recently buy a new MCIMX6ULL-EVK board. There seems to be 2 problems with the board.
1. After powering on or resetting the board, it sometimes cannot start sucessfully.
The console messages are shown as follows.
Power on
U-Boot 2016.03-imx_v2016.03_4.1.15_2.0.0_ga+g0ec2a01 (Nov 05 2016 - 01:13:31 -0500)
CPU: Freescale i.MX6ULL rev1.0 at 396MHz
CPU: Commercial temperature grade (0C to 95C) at 47C
Reset cause: POR
Board: MX6ULL 14x14 EVK
I2C: ready
DRAM: 512 MiB
No following messages anymore, the board seems to be not working, and then I Reset the board by pressing the reset button.
U-Boot 2016.03-imx_v2016.03_4.1.15_2.0.0_ga+g0ec2a01 (Nov 05 2016 - 01:13:31 -0500)
CPU: Freescale i.MX6ULL rev1.0 at 396MHz
CPU: Commercial temperature grade (0C to 95C) at 46C
Reset cause: POR
Board: MX6ULL 14x14 EVK
I2C: ready
DRAM: 512 MiB
Still not boot up.
After another reset, it finally boots up the u-boot.
U-Boot 2016.03-imx_v2016.03_4.1.15_2.0.0_ga+g0ec2a01 (Nov 05 2016 - 01:13:31 -0500)
CPU: Freescale i.MX6ULL rev1.0 at 396MHz
CPU: Commercial temperature grade (0C to 95C) at 47C
Reset cause: POR
Board: MX6ULL 14x14 EVK
I2C: ready
DRAM: 512 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
*** Warning - bad CRC, using default environment
Display: TFT43AB (480x272)
Video: 480x272x24
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc1 is current device
Net: FEC1
Normal Boot
Hit any key to stop autoboot: 0
2. It hangs at Starting kernel ...
(BTW, I start the board without connecting LCD screen. Does it matter?)
U-Boot 2016.03-imx_v2016.03_4.1.15_2.0.0_ga+g0ec2a01 (Nov 05 2016 - 01:13:31 -05 00)
CPU: Freescale i.MX6ULL rev1.0 at 396MHz
CPU: Commercial temperature grade (0C to 95C) at 47C
Reset cause: POR
Board: MX6ULL 14x14 EVK
I2C: ready
DRAM: 512 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
*** Warning - bad CRC, using default environment
Display: TFT43AB (480x272)
Video: 480x272x24
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc1 is current device
Net: FEC1
Normal Boot
Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc1 is current device
switch to partitions #0, OK
mmc1 is current device
reading boot.scr
** Unable to read file boot.scr **
reading zImage
6635528 bytes read in 1104 ms (5.7 MiB/s)
Booting from mmc ...
reading imx6ull-14x14-evk.dtb
35921 bytes read in 82 ms (427.7 KiB/s)
Kernel image @ 0x80800000 [ 0x000000 - 0x654008 ]
## Flattened Device Tree blob at 83000000
Booting using the fdt blob at 0x83000000
Using Device Tree in place at 83000000, end 8300bc50
Starting kernel ...
I use the original SD card (no content changes) shipped with the board. It is brand new product and I buy it from certified distributor. Is there something wrong with the HW or SW of the board? Need help.
Hi boshen
one can try latest Demo Images from official i.mx software page
i.MX Software and Development Tools | NXP
Also nxp has a service which process a return of failure board.
Returns and Warranty Information | NXP
Best regards
igor
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