want to program multiple tiva launchpads through usb hub

[blue minerals 0]

I have 5 tiva launchpads connected to a 7 port usb hub. I can select the com port in the Energia IDE but when programming, the IDE "says Found multiple ICDI devices with serial : " and gives up. Is there any way to program the launchpads through the hub?

[Lyon 3]

Hi,

I think the technique is/should be a little bit different - most users/brands uses JTAG chaining for such purposes, and a special PC software, since  each micro can be in a different state (i.e.OK, running or Error or...).

See this link: http://e2e.ti.com/support/microcontrollers/stellaris_arm/f/471/t/123310.aspx for a small discussion.

L

[SixSixSevenSeven 23]

Energia does not actually use the com port for programming, it makes no impact on programming.

[Rickta59 589]

on the command line you can run the lm4flash by hand and pick a specific lm4f board. On linux it is something like this:

 

1.) find the serial numbers of the launchpads

2.) build your energia project to get a bin file

3.) provide the launchpad serial number to the lmf4flash utility with the -s option

 

1.) To find the serial numbers on linux use:

 

# lsusb -d 1cbe:00fd -v | grep  iSerial

  iSerial                 3 0E1011CF

 

* I only had one stellaris launchpd device plugged in. Note: the tiva lp vid/pid might be the same or different

 

2.) Go to the /tmp/buildxxx directory and find the bin file

 

$ cd /tmp/buildxxsomethingxx.tmp

 

3.) Invoke the lm4flash with a serial number

 

$ lm4flash -s 0E1011CF BlinkWithoutDelay.cpp.bin 

Found ICDI device with serial: 0E1011CF

ICDI version: 9270

 

You can do something similar on window but I don't have that setup.

 

Note: all the commands assume you have udev already working and you put the energia tools in your path.