Problem with board DE0-Nano-SoC - in reset loop

Hello all,

Maybe it is known problem or my board is broken. I don’t know.

Generally I would like start with: HPS Boot first(Linux)… Quick Start Guide.

1, I set the MSEL like in instruction then plugged the SD card.
2. Connect the 5V to power jack.
3. Enable the console in my PC

sudo screen /dev/ttyUSB0 115200

What I can see:

  • HPS User LED - blinking
  • FPGA User LEDs - little shining
  • Ethernet LED - blinking

In console I see only ( the first lines of booting ):

SDRAM: Initializing MMR registers
SDRAM: Calibrating PHY
SEQ.C: Preparing to start memory calibration
SEQ.C: CALIBRATION PASSED
SDRAM: 1024 MiB
ALTERA DWMMC: 0
reading ATLAS_SOC_GHRD/u-boot.img
reading ATLAS_SOC_GHRD/u-boot.img

U-Boot 2013.01.01 (Sep 21 2015 - 06:53:50)

CPU : Altera SOCFPGA Platform
BOARD : Altera SOCFPGA Cyclone V Board
I2C: ready
DRAM: 1 GiB
MMC: ALTERA DWMMC: 0
*** Warning - bad CRC, using default environment

U-Boot SPL 2013.01.01 (Sep 21 2015 - 06:53:43)
BOARD : Altera SOCFPGA Cyclone V Board
CLOCK: EOSC1 clock 25000 KHz
CLOCK: EOSC2 clock 25000 KHz
CLOCK: F2S_SDR_REF clock 0 KHz
CLOCK: F2S_PER_REF clock 0 KHz
CLOCK: MPU clock 925 MHz
CLOCK: DDR clock 400 MHz
CLOCK: UART clock 100000 KHz
CLOCK: MMC clock 50000 KHz
CLOCK: QSPI clock 3613 KHz
RESET: COLD
SDRAM: Initializing MMR registers
SDRAM: Calibrating PHY
SEQ.C: Preparing to start memory calibration
SEQ.C: CALIBRATION PASSED
SDRAM: 1024 MiB
ALTERA DWMMC: 0
reading ATLAS_SOC_GHRD/u-boot.img
reading ATLAS_SOC_GHRD/u-boot.img

U-Boot 2013.01.01 (Sep 21 2015 - 06:53:50)

CPU : Altera SOCFPGA Platform
BOARD : Altera SOCFPGA Cyclone V Board
I2C: ready
DRAM: 1 GiB
MMC: ALTERA DWMMC: 0
*** Warning - bad CRC, using default environment

It looks like my board is in reset loop.

Do you have any ideas?

Thank you,

BR,

HI przemek. You could check your power supply. I had a problem like this, and when I checked the power supply with an oscilloscope, I could saw little glitches that was making restart the HPS.
I changed the power supply and the problems were fixed.

I hope that this help you.

Regards.

Damian B.

Hello Damian,

Exactly, it is solution of my problem. The current power supply should be 2A, but I used the version with 1A. My mistake.

Best Regards,
Przemek