Differences

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--- wrtu54g-tm:uboot [2011/04/04 12:18] – alexhulse
+++ wrtu54g-tm:uboot [2023/11/04 22:30] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== U-Boot ======
 The WRT54G and like Broadcom devices seem to allow a boot_wait option where we can fix any broken flash remotely by TFTP without opening the router. Currently our only solution is opening the device and installing a serial connection, with use of a TTL RS232 converter.  This isn't within the ability of many end-users.
+An easier solution to the serial add-on is to acquire a USB-Serial converter such as that built into a typical e-bay Nokia CA-42 clone cable and use that to do the level conversion. You will need to hook up TX, RX and GND - see [[wrtu54g-tm:info#serial_port|Serial Port]].
 U-boot has no TFTP server. It only has a client. U-Boot maintainers like it this way and see no point in a server. Well, they're mostly right. Anything could be done using scripting of environment variables and starting a TFTP client. So let's see if we can somewhat mimic other routers with what we have...
+Note that the built in tftp client in Windows and OSX won't work - TFTPD32 for Windows and TFTPServer for OSX do work.
+===== Just to replace firmware =====
+If you're just looking to replace the firmware that is on the device and did create the necessary serial port connections, you don't need to read all the ramblings below. \\
+You can set the PC to IP 192.168.0.250, place the firmware in the TFTPD root directory with the name **vmlinuz-8668** and simply type **run update_kernel** at the ADM8668 prompt.
 ===== Figuring it out =====