Hardware reference guide

Chapter 5: Reinstalling The OS
Serial Download
Upgrading The Software Image
58
7535 Hardware Reference Guide
4. Set the serial communications software for the port where the serial
cable is connected. Use 8 data bits, no parity, one stop bit (8N1), a data
rate of 115 200 bits per second, and no flow control.
5. Start the serial communications software.
6. Press Enter. The 7535 echoes a menu to the PC’s screen through the
communications software. This menu is also displayed on the 7535’s
own screen.
In the communications software on the PC, or on the 7535...
7. Press 2 to begin a Y-modem transfer. The 7535 displays:
Attempting YMODEM receive to BooSt loader...
CCCCCCCCCCC
On the PC...
8. Select the OS image file for serial transfer, using Y-modem protocol.
9. Start the download. The 7535 receives the image file and places it in its
internal flash storage, then displays messages similar to the following:
YMODEM successfully received 0x115A880 bytes.
Load copy to nand0 info: size = 12601941
753x Windows CE.NET
K053r
Load completed successfully.
nand0-0 mounted: size = 15728640 (30720 * 512)
Command> load "/nand0-0/753xOS.img" run
Loading "/nand0-0/753xOS.img"...
Load RAM image info: size = 12601941
753x Windows CE.NET
K053r
Loading 9% complete...
Loading 29% complete...
Loading 48% complete...
Loading 68% complete...
Loading 92% complete...
Loading 100% complete...
Resetting to RAM module.
The 7535 automatically reboots copies the newly-loaded operating
system to RAM, then runs it.