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-rw-r--r-- | nuttx/configs/eagle100/README.txt | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/nuttx/configs/eagle100/README.txt b/nuttx/configs/eagle100/README.txt index 4afbe0664..42fd0256b 100644 --- a/nuttx/configs/eagle100/README.txt +++ b/nuttx/configs/eagle100/README.txt @@ -37,6 +37,44 @@ Toolchain detailed PLUS some special instructions that you will need to follow if you are building a Cortex-M3 toolchain for Cygwin under Windows. +Ethernet-Bootloader +^^^^^^^^^^^^^^^^^^^ + + Here are some notes about using the Luminary Ethernet boot-loader built + into the Eagle-100 board. + + - The board has no fixed IP address but uses DHCP to get an address. + I use a D-link router; I can use a web browser to surf to the D-link + web page to get the address assigned by + + - Then you can use this IP address in your browser to surf to the Eagle-100 + board. It presents several interesting pages -- the most important is + the page called "Firmware Update". That page includes instructions on + how to download code to the Eagle-100. + + - You will need the "LM Flash Programmer application". You can get that + program from the Luminary web site. There is a link on the LM3S6918 page. + + - Is there any documentation for using the bootloader? Yes and No: There + is an application note covering the bootloader on the Luminary site, but + it is not very informative. + + - Are there any special things I have to do in my code, other than setting + the origin to 0x0000:2000 (APP_START_ADDRESS)? No. The bootload assumes + that you have a vector table at that address . The bootloader does the + following each time it boots (after you have downloaded the first valid + application): + + o The bootloader sets the vector table register to the APP_START_ADDRESS, + o It sets the stack pointer to the address at APP_START_ADDRESS, and then + o Jumps to the address at APP_START_ADDRESS+4. + + - You can force the bootloader to skip starting the application and stay + in the update mode. You will need to do this in order to download a new + application. You force the update mode by holding the user button on the + Eagle-100 board while resetting the board. The user button is GPIOA, pin 6 + (call FORCED_UPDATE_PIN in the bootloader code). + Eagle100-specific Configuration Options ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |