Cirrus Logic EDB9302A - Manual (Page 34)

EDB9302A
Technical Reference Manual
34
©
Copyright 2006 Cirrus Logic, Inc. DS653DB1
Board Programming Setup
1. At this point, the RJ45 Ethernet port on the Windows PC is configured, HyperTerminal is running,
the TFTP server is running, the Cirrus Logic software has been downloaded to the
C:\TFTPROOT directory and the board is powered up.
2. Connect one end of the Null Modem cable to J2.
3. Connect the other end of the Null Modem cable to the COM1 port on the Windows 2000/XP
computer.
4. Connect the other end of the Ethernet cross-over cable to J3. A green LED in the J3 Ethernet
connector should light up.
5. Open a "Command Prompt" window so DOS commands can be issued.
6. Go to the C:\TFTPROOT directory by typing "cd\tftproot"
7. Click the "Disconnect" button in HyperTerminal to disable serial communication. HyperTerminal
has to be disconnected whenever the download.exe program is executed.
Programming Software into the Board
1. From the Command Prompt, type the following command: download redboot.bin.
2. At this point, the download program is waiting for the user to press AND hold down pushbutton
S1 SERIAL BOOT. While holding down S1, press and release pushbutton S3 /POR. Keep
holding down S1 until red LED, D2 (next to the flashing green LED) is no longer illuminated.
Afterwards, release S1. You should then see the following in the Command Prompt window.