Ktt20/pitx software guide – Kontron KTT20-pITX User Manual
Page 29
KTD-S0045-D
Page 25
Bootloader Modification and Download
KTT20/pITX Software Guide
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Execute the 'spi.sh' file. The following screen output must appear:
Nvflash
started
rcm
version
0X20001
System
Information:
chip name: t20
chip id: 0x20 major: 1 minor: 3
chip sku: 0x8
chip uid: ........
macrovision: disabled
hdcp: enabled
sbk burned: false
dk burned: false
boot device: spi
operating mode: 3
device config strap: 0
device config fuse: 0
sdram config strap: 0
sending
file:
SPI.bct
4080/4080
bytes
sent
SPI.bct
sent
successfully
downloading bootloader -- load address: 0x108000 entry point: 0x108000
sending
file:
spi-flasher.img
..... / ..... bytes sent
spi-flasher.img
sent
successfully
waiting for bootloader to initialize
bootloader failed NvError 0x0
command failure: bootloader download failed
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Ignore the error messages. The 'nvflash' program expects some additional operations which
are never executed. Now U-Boot is starting and you should see the bootloader serial output
on your terminal program.
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To prevent data loss when switching off the board it is a good solution to control the pro-
gramming progress over the serial output. You should see as a minimum:
SF: Detected SST25VF032B with page size 4096, total 4 MiB
4096 KiB SST25VF032B at 0:0 is now current device
ERASING...
WRITING...