We normally flash our custom linux image (based on V2.3) onto the Colibri T20 modules with the provided ‘update.sh’. This has been working for at least over 400 modules.
However in the latest lot of 20 modules there were 2 modules which stopped at ‘waiting for bootloader to initialize’.
These 2 modules seem to be from a different production lot. Their serial numbers are 10707188 and 10707187, whereas the serial numbers of the 18 working modules all start with 066xxxxx.
Here the flash log:
vo@PC033:~/Schreibtisch/xbbz4v-image-Colibri-T20_V1.0r6$ ./update.sh -r 512 -v V1_2
Colibri T20 rootfs detected
LD_LIBRARY_PATH=../t20_nvflash ../t20_nvflash
Nvflash version 19.0041 started
rcm version 0X20001
System Information:
chip name: t20
chip id: 0x20 major: 1 minor: 4
chip sku: 0x8
chip uid: 0x0359b007437ff057
macrovision: disabled
hdcp: enabled
sbk burned: false
dk burned: false
boot device: nand
operating mode: 3
device config strap: 0
device config fuse: 4128
sdram config strap: 0
sending file: ColibriT20_333_512_V1_2_nand.bct
- 4080/4080 bytes sent
ColibriT20_333_512_V1_2_nand.bct sent successfully
odm data: 0x1
downloading bootloader -- load address: 0x8300000 entry point: 0x8300000
sending file: loader.nb0
\ 360208/360208 bytes sent
loader.nb0 sent successfully
waiting for bootloader to initialize