serial download protocol get status

[caoping]

hi everyone!

         now i am debugging an imx536 board which is made by ourselves,the USB can be recognized by the PC and

  the MfgTools,but we can't use the MfgTool download image to microSD,and now when i power it on,it can't boot up,

  when i send 0x05 0x05 to the board using serial terminal,it responses 0xF0 0xF0 0xF0 0xF0,then i press the reset key,

  and send 0x05 0x05 to the board using serial termianl,it responses 0x33 0x33 0x33 0x33,but i don't know the meaning

  of these information like oxF0 and ox33,i want to know if i can find the reason that the board can't boot up  by using the

  serial return information.

[jimmychan]

Have you try to use 'dd' command to program the images to SD card and then boot up the board successfully?

The MFGtool only work for the MX53 Development boards (e.g. MX53QSB, MX53SMD). For your own design board, you need to update the firmware that can boot up your board (the firmware is uboot and kernel loading to DDR at the beginning). Please read the BSP User Guide for how to build your own MFGtool firmware.

[caoping]

Thank you for your apply,the boot up circuit and power-up circuit are the same with MX53QSB,when i use the card that works well on the MX53QSB board, think it should print some information at the serial terminal on PC before it copy data to DDR3, now i only just want to confirm whether it can boot up or not,so i want to know the serial feedback information.and i want to know the reason of that. Do you have any information about the serial feedback information definition?and the serial type thatl i use is the uart1 of the imx536.thank you!

[jimmychan · Accepted solution]

Is your DDR3 same as QSB? if not, you may need to change the setting in DCD header.

Please calibrate your DDR first. make sure the DDR can work well on your board.

You can read the AN4466 for more details.

< http://cache.freescale.com/files/32bit/doc/app_note/AN4466.pdf?fsrch=1&sr=1 >

Also, you may find more board bring up information from others in Community for reference.

e.g.

https://community.freescale.com/message/297286#297286