I have a TS-7260 that has stopped booting from the sd card. The boot starts as
normal, but ends with:
<snip>
Mounted devfs on /dev
Freeing init memory: 76K
Using sdcard.o
sdcard0: Technologic Systems SD card controller, address 0x13000000
sdcard0: card size 3970048 sectors
Partition check:
sdcard0a:
As this point, the boot hangs.
The machine was working fine today, then we change from test fixture to
another, and the problems started.
I booted into Redboot and manually loaded the kernel and initrd via http and
ran into the same problem.
I tried to boot from another SD card that works fine in one of my other 7260s
and ran into the same problem.
The 7260 is equipped with a TS-RELAY8 which is being used to turn several small
12 VDC light bulbs on and off. It also measures its line voltage via a voltage
divider hooked up to ADC2 on DIO2, with a nominal voltage of 1.2 VDC. We have
several switches hookup up between ground and the DIO lines on the DIO1
connector. There is also a 4x20 LCD display with keypad on COM2.
The boxes are under active development, and I am concerned that stray voltage
has entered the 7260 one way or another and has zorched the SD Card socket, but
I really have no idea one way or another.
My question is: what is the likely problem, and is it hardware or software? If
it is software, what might that be?
Anyone have any thoughts?
jw
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