Manual SAM3U Firmware Update - Revision history

Adewar at 18:14, 5 May 2023

2023-05-05T18:14:33Z

Coflynn at 17:14, 30 June 2016

2016-06-30T17:14:47Z

Coflynn at 17:12, 30 June 2016

2016-06-30T17:12:22Z

Coflynn at 17:10, 30 June 2016

2016-06-30T17:10:14Z

Coflynn: /* Entering Bootloader Mode */

2016-06-30T17:07:34Z

‎Entering Bootloader Mode

Coflynn: /* Entering Bootloader Mode */

2016-06-30T17:05:27Z

‎Entering Bootloader Mode

Coflynn at 17:05, 30 June 2016

2016-06-30T17:05:15Z

Coflynn: Created page with "The SAM3U device has a ROM-resident bootloader. This means the bootloader is always present - unless the chip is damaged it can be run, making the device almost "unbrickable"...."

2016-06-30T17:03:12Z

Created page with "The SAM3U device has a ROM-resident bootloader. This means the bootloader is always present - unless the chip is damaged it can be run, making the device almost "unbrickable"...."

New page

The SAM3U device has a ROM-resident bootloader. This means the bootloader is always present - unless the chip is damaged it can be run, making the device almost "unbrickable". If you have trouble running the instructions on this webpage it's most likely an issue with your host computer, and not an issue with the SAM3U being damaged.

==Install BOSSA==

The suggested utility to program the device is BOSSA - see [http://www.shumatech.com/web/products/bossa] for details. Before proceeding, install BOSSA for your system.

==Entering Bootloader Mode==

The only way to enter the bootloader mode is to erase the FLASH memory. Before erasing the FLASH memory you should install the programmer tool and confirms it works (it won't connect to the device, but at least check the install works). See the next heading for details of the programming tool.

To erase the FLASH memory, simply short the jumper labeled "ERASE" on the ChipWhisperer-Lite. Do this while the device is connected via micro-USB. The blue LED should stop flashing at this point, and will stay either on or off (depending when you shorted the jumper). This can be accomplished by anything metallic - for example using a screwdriver or tweezers:

Once this is accomplished, unplug and replug the micro-USB port. This will install a new driver (assuming you installed BOSSA already), and the red and blue LED should be only dimmly lit:

← Older revision		Revision as of 18:14, 5 May 2023
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		+
		+	'''WARNING: THE INFORMATION IN THIS PAGE IS WOEFULLY OUT OF DATE! UPDATED DOCUMENTATION IS AVAILABLE AT: https://chipwhisperer.readthedocs.io/en/latest/firmware.html'''
		+
		+	'''CONTINUE AT YOUR OWN RISK!'''
		+
		+
	The SAM3U device has a ROM-resident bootloader. This means the bootloader is always present - unless the chip is damaged it can be run, making the device almost "unbrickable". If you have trouble running the instructions on this webpage it's most likely an issue with your host computer, and not an issue with the SAM3U being damaged.		The SAM3U device has a ROM-resident bootloader. This means the bootloader is always present - unless the chip is damaged it can be run, making the device almost "unbrickable". If you have trouble running the instructions on this webpage it's most likely an issue with your host computer, and not an issue with the SAM3U being damaged.

@@ Line 29: / Line 29: @@
 # Press Exit to close out the program.
 # Unplug & Replug the Micro-USB and you've got a working ChipWhisperer-Lite again, with the latest SAM3U firmware!
 ==BOSSA Command Line==

@@ Line 1: / Line 1: @@
 The SAM3U device has a ROM-resident bootloader. This means the bootloader is always present - unless the chip is damaged it can be run, making the device almost "unbrickable". If you have trouble running the instructions on this webpage it's most likely an issue with your host computer, and not an issue with the SAM3U being damaged.
 ==Entering Bootloader Mode==
@@ Line 23: / Line 19: @@
 If using Linux, you can use ''dmesg'' to verify the serial port was connected OK.
 ==BOSSA Command Line==

← Older revision		Revision as of 17:10, 30 June 2016
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	If using Linux, you can use ''dmesg'' to verify the serial port was connected OK.		If using Linux, you can use ''dmesg'' to verify the serial port was connected OK.
		+
		+
		+	==BOSSA Command Line==
		+
		+	On certain systems it may be easier to use the command-line version of BOSSA, called bossac. You can also build just this version if required (see instructions below).
		+
		+	You can also run the BOSSA utility at the command line, with an instruction like the following:
		+
		+	bossac -e -w -v -b /path/to/SAM3U_CW1173.bin
		+
		+	If you are on Linux, you may need to either fix permissions on the serial port, or run bossac as root/sudo. See below for details.
		+
		+	=== Linux-Specific Instructions ===
		+
		+	You may need to give yourself write permission for the serial port. This can be done on some systems easily by adding yourself to the <code>dialout</code> user group. For example, assuming your username was <code>cwuser</code>:
		+
		+	# <code>$ sudo usermod -a -G dialout cwuser</code>
		+	# Log out and log back in again for changes to take effect.
		+
		+	You may also need to build bossac from sources, as the provided binary does not work with your system. Details of how to perform this are provided next:
		+
		+	To build BOSSA, it is recommended to use our simplified bossac repository, which only builds the command-line version. To build this perform these steps:
		+
		+	# Download [https://github.com/newaetech/BOSSA/archive/master.zip a copy of the GIT repo], or clone with <code>git clone git@github.com:newaetech/BOSSA.git</code> (see github.com/newaetech/bossa for the full repo).
		+	# Unzip the directory if you downloaded the zip.
		+	# Run <code>make</code>.
		+	# The binary should be in <code>bin\bossac</code>.

← Older revision		Revision as of 17:07, 30 June 2016
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	Once this is accomplished, unplug and replug the micro-USB port. This will install a new driver (assuming you installed BOSSA already), and the red and blue LED should be only dimmly lit:		Once this is accomplished, unplug and replug the micro-USB port. This will install a new driver (assuming you installed BOSSA already), and the red and blue LED should be only dimmly lit:
		+
		+	[[File:lights_prog.jpg\|400px]]
		+
		+	This indicates it is in bootloader mode. The device will now attach as a serial port. If you are using Windows this may take a few minutes to happen.
		+
		+	If using Linux, you can use ''dmesg'' to verify the serial port was connected OK.

@@ Line 13: / Line 13: @@
 [[File:short_screwdriver.jpg|400px]]
-[[File:short_tweezers.jpg|image]]
+[[File:short_tweezers.jpg|400px]]
 Once this is accomplished, unplug and replug the micro-USB port. This will install a new driver (assuming you installed BOSSA already), and the red and blue LED should be only dimmly lit:

← Older revision		Revision as of 17:05, 30 June 2016
Line 10:		Line 10:

	To erase the FLASH memory, simply short the jumper labeled "ERASE" on the ChipWhisperer-Lite. Do this while the device is connected via micro-USB. The blue LED should stop flashing at this point, and will stay either on or off (depending when you shorted the jumper). This can be accomplished by anything metallic - for example using a screwdriver or tweezers:		To erase the FLASH memory, simply short the jumper labeled "ERASE" on the ChipWhisperer-Lite. Do this while the device is connected via micro-USB. The blue LED should stop flashing at this point, and will stay either on or off (depending when you shorted the jumper). This can be accomplished by anything metallic - for example using a screwdriver or tweezers:
		+
		+	[[File:short_screwdriver.jpg\|400px]]
		+
		+	[[File:short_tweezers.jpg\|image]]

	Once this is accomplished, unplug and replug the micro-USB port. This will install a new driver (assuming you installed BOSSA already), and the red and blue LED should be only dimmly lit:		Once this is accomplished, unplug and replug the micro-USB port. This will install a new driver (assuming you installed BOSSA already), and the red and blue LED should be only dimmly lit: