The VCM 2 serial console is available on pins 24 (Rx), 25 (Tx), & 26 (Gnd) of the HDL26-PL-B connector. The connection is 38400 8-N-1 @ RS-232 levels.
Make sure to use pin 26 for ground and not the shield. The shield floats and wont produce a usable connection.
This is the U-Boot bootloader from the serial console:
Codes:
U-Boot 1.3.0 (Jan 14 2011 – 17:19:53) ETAS VCI (r68531)
RAM Configuration: on-board
Bank #0: a0000000 64 MB
HW Configuration: (0x1) VCI STD variant 0x1 with SMSC9215I
Flash: 32 MB
*** Warning – bad CRC, using default environment
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
$ help
? – alias for ‘help’
askenv – get environment variables from stdin
autoscr – run script from memory
base – print or set address offset
bdinfo – print Board Info structure
boot – boot default, i.e., run ‘bootcmd’
bootd – boot default, i.e., run ‘bootcmd’
bootm – boot application image from memory
bootp – boot image via network using BootP/TFTP protocol
clock – display or set processor clock speed
cmp – memory compare
coninfo – print console devices and information
cp – memory copy
crc32 – checksum calculation
dhcp – invoke DHCP client to obtain IP/boot params
dispgd – get info on mmc(sd) card
dmamove – memory to memory move using DMA
echo – echo args to console
erase – erase FLASH memory
exit – exit script
ext2load- load binary file from a Ext2 filesystem
ext2ls – list files in a directory (default /)
fatinfo – print information about filesystem
fatload – load binary file from a dos filesystem
fatls – list files in a directory (default /)
flinfo – print FLASH memory information
flock – physical lock of Strataflash
funlock – physical unlock of Strataflash
go – start application at address ‘addr’
help – print online help
icrc32 – checksum calculation
iloop – infinite loop on address range
imd – i2c memory display
iminfo – print header information for application image
imls – list all images found in flash
imm – i2c memory modify (auto-incrementing)
imw – memory write (fill)
inm – memory modify (constant address)
iprobe – probe to discover valid I2C chip addresses
itest – return true/false on integer compare
loadb – load binary file over serial line (kermit mode)
loads – load S-Record file over serial line
loady – load binary file over serial line (ymodem mode)
loop – infinite loop on address range
macaddr – display or store MAC address in Strataflash
mapadd – add a memory map item
mapdel – delete a memory map item
mapinfo – display the memory map information
md – memory display
mm – memory modify (auto-incrementing)
mmcinfo – get info on mmc(sd) card
mmcinit – init mmc card
mtest – simple RAM test
mw – memory write (fill)
nfs – boot image via network using NFS protocol
nm – memory modify (constant address)
pinit – PCMCIA sub-system
printenv- print environment variables
protect – enable or disable FLASH write protection
rarpboot- boot image via network using RARP/TFTP protocol
reset – Perform RESET of the CPU
run – run commands in an environment variable
saveenv – save environment variables to persistent storage
serialnum – display or store serial number in Strataflash
setenv – set environment variables
sleep – delay execution for some time
test – minimal test like /bin/sh
tftpboot- boot image via network using TFTP protocol
usb – USB sub-system
usbboot – boot from USB device
version – print monitor version
$
