User`s guide

LPC3250 Developer’s Kit - User’s Guide

Page 37

Figure 15 – S1L loader up and running

The S1L loader will initialize the board, such as clocks and external memory and then start a console

where you can give input commands to the loader. S1L offers the following booting options.

- MMC/SD card

- UART5

- NAND Flash

Load application from MMC/SD card

First make sure you have stored the srec file on the FAT formatted MMC/SD card. Please note that the

S1L loader doesn’t support long file names.

1. Load srec file to memory

ea3250> load blk timer~1.sre srec

2. Start the application using the exec command

ea3250> exec

If the application has been built and linked to execute from external memory you could also use the

binary file when loading the application. This is, for example, the case for the u-boot bootloader.

1. Load the binary file with type set to raw.

ea3250> load blk u-boot.bin raw 0x83fc0000

2. Start the application using the exec command and the load address.

ea3250> exec 0x83fc0000

Instead of directly executing the binary file you could store it in NAND flash by issuing the nsave

command after it has been loaded to the external memory.

Load application from UART

Loading from UART is similar to loading from MMC/SD card with the difference that source is set to

term.