Hi,
My LX2160ARDB board cannot boot without any output in UART1.
After power on, M5,M6,M7 leds turn on and turn off sequentially and repeatedly.
Is the LED status is normal?
What condition do those LEDs indicate?
Thanks
JeongHwan Kim
According to the QorIQ LX2160A Reference Design Board Getting Started Guide, Table 11. LED array functions and CPLD HDL code the LEDs activity corresponds to "idle" pattern - i.e. no error detected during power-up.
Is CodeWarrior debug connection with the processor possible?
Yes, Codewarrior connection is OK.
I flashed the firmware with codewarrior and tested DDR verification with QCVS in codewarrior.
But I did not find any errors.
Is there any more checkpoint I can test?
Thanks
Please use a digital scope and check UART1_SOUT signal activity.
Please disconnect the UART cable and probe the TXD1_CON again.
The signal does not correspond to the LTC2804 datasheet.
It looks like the LTC2804 was damaged.
I changed the console from UART#1 to UART#2 and message is output from console.
It seems that UART#1 transceiver is broken as you said.
Thank you for help.
Which boot source is selected by the SW1[1:4]? (What are positions of the switches?)
Please refer to the QorIQ LX2160A Reference Design Board Getting Started Guide, Table 11. LED array functions.
Please capture video of the LEDs activity.