Switch Science


Switch Science is one of the open source hardware retailers in Japan. We are manufacturing our own products.

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Firmware LPC824

Instruction

This instruction explain how to update your firmware.

1. Entering to the ISP mode
While shorting following pads, plug the USB connector. You can use a jumper wire.
/media/uploads/asagin/pads-rotate-180.png

When the mbed LPC824 is plugged in this way, it will appear as a disk called "CRP DISABLED". When you see the drive, you can release the wire.
/media/uploads/asagin/lpc824-short.jpg

2. Trash the old firmware
Open the "CRP DISABLED" drive, so you can find a file called "firmware.bin". Please trash this old firmware.
/media/uploads/asagin/lpc824-old-firmware.png

3. Copy the new one
Please Drag&Drop the downloaded latest firmware into the "CRP DISABLED" drive. After that, do eject operation like usual USB flash stick.
/media/uploads/asagin/lpc824-new-firmware.png

4. Power cycling
Unplug the USB cable and wait about 5 seconds. After that, please plug it again.
"MBED" drive will be shown. You can use mbed LPC824 as usual.
/media/uploads/asagin/1114_safey_removing_win_en.png

On OS X, you can not process this with finder. You need to do with terminal like below.

rm /volumes/CRP\ DISABLD/firmware.bin
cp /Users/$USER/Downloads/lpc11u35_ssci824_if_crc.bin /volumes/CRP\ DISABLD/
sudo umount /volumes/CRP\ DISABLD/


Linux case:
We don't provide support about Linux and other Unix OS.

rm /media/CRP\ DISABLD/firmware.bin
dd bs=1024 conv=nocreat,notrunc if=~/lpc11u35_ssci824_if_crc.bin of=/media/CRP\ DISABLD/firmware.bin
umount /media/CRP\ DISABLD/firmware.bin



Interface Firmware

Current release:
Download build 20160812
- Built from refactored firmware (DAPLink).

Archives:

20150206
- CMSIS-DAP debug interface support.
- minor bug fixes.

20150115
- Update disk format and emulation for Mac Yosemite
- CDC and HID endpoints don't disconnect when programming via MSC drag 'n drop
- Only erase sectors in target flash that are needed for the new program
- New details text file for information about the version and build
- CMSIS-DAP debug interface doesn't work on this version


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