No output from UBOOT serial port

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No output from UBOOT serial port

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muaxi8
Contributor V

My uboot code has already loaded into the DDR. I used codewarrior to step through the init_sequence_f sequence, but there is no output from the serial port. Is there anything I need to set?What could be the problem.

muaxi8_0-1626849572545.png

 

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yipingwang
NXP TechSupport
NXP TechSupport

Please click "Debug" to connect CodeWarrior to the target board, the debugger stops at _start symbol first. Click "Resume" button to let u-boot continue running, then click "Suspend" button to check where u-boot is stuck.

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yipingwang
NXP TechSupport
NXP TechSupport

Please click "Debug" to connect CodeWarrior to the target board, the debugger stops at _start symbol first. Click "Resume" button to let u-boot continue running, then click "Suspend" button to check where u-boot is stuck.

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muaxi8
Contributor V

erratum_a050106();this function can not Performed in the past, After it is removed,uboot can bring up

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muaxi8
Contributor V

 

1:click "Debug" to connect CodeWarrior to the target board, the debugger stops at _start symbol :

muaxi8_0-1626861551594.png

2:Click "Resume" button to let u-boot continue running, The suspend button is grayed out and cannot be used

muaxi8_1-1626861596147.png

 

3: Continue to click the Resum button and Resume grays out, No call stack

muaxi8_2-1626861615354.png

 

 

 

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