[U-Boot-Users] Uboot runs but applications do not?

John.Jeffers at bjservices.com John.Jeffers at bjservices.com
Tue Oct 10 18:02:52 CEST 2006


I am have not been able to run any application.

Using example code Hello_world.c and further simplifying it to ..... 
printf("hello world" line only.

results in.  It seems to me I have not gotten an interface to Uboot stdio 
correct.

Using a BDI 2000 results in a crash as well.  The BDI-2000 will not allow 
Uboot to "boot" without dropping out into a reset.

Is there an example of BDI-2000 running correctly as Uboot comes up?  I am 
most uncertain about my tools!

Regards John

CPU:   MOTOROLA Coldfire MCF5235
RESET: Core External Reset
RESET: External
BOARD: M5235BCC
DRAM:  16 MB
FLASH:  2 MB
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Das-Uboot > loads
## Ready for S-Record download ...

## First Load Addr = 0x00020000
## Last  Load Addr = 0x0002218B
## Total Size      = 0x0000218C = 8588 Bytes
## Start Addr      = 0x00020000
Das-Uboot > go 20000
## Starting application at 0x00020000 ...


*** Unexpected exception ***
Vector Number: 4  Format: 04  Fault Status: 0

PC: 00ffa0ac    SR: 00002700    SP: 00f91c18
D0: 00000000    D1: 0000022d    D2: 00000002    D3: 00000000
D4: 00000000    D5: 00000000    D6: 00000001    D7: 00fa1f8c
A0: 00000002    A1: 00fef940    A2: 00ffa0ac    A3: 00fee52e
A4: 00f91cd4    A5: 00ff8c00    A6: 00f91c68

*** Please Reset Board! ***


John Jeffers P.Eng. , MS1074
Software Applications Engineering
11211 FM 2920, Tomball, TX, 77375
281.357.2773, 281.357.5491 Fax




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