updating software remotely

Nick King

Dear TI,

http://processors.wiki.ti.com/index.php/Sitara_Linux_Program_the_eMMC_on_Beaglebone_Black

so basically the way i update the software as per above link by linux host is asking processor to boot via USB by holding boot key pressed and in my local /tftpboot folder i have all the required images to boot which will call flasher.sh script this script will flash boot_partition.tar.gz & tisdk-rootfs-image-am335x-evm.tar.gz file on eMMC flash disk

now i am wondering how will the update software happen when the devices are shipped to customer this hardware will be embedded in a large unit the only connection to this unit is via internet. the customer will not have physical access to this device but he can access the device remotely via internet

can you please let me know how to update the software (boot_partition.tar.gz & tisdk-rootfs-image-am335x-evm.tar.gz)on this board from a server which is remotely connected

Regards

over 10 years ago

0 Biser Gatchev-XID over 10 years ago

TI__Guru**** 393215 points

Hi,

You can simply overwrite the old files and reboot.

0 Nick King over 10 years ago in reply to Biser Gatchev-XID

Expert 1280 points

Hi Biser

i think you did not get what i was trying to say may be i did not explain properly ok let me put it this way

i have to erase BBB eMMC Nand & write new images boot_partition.tar.gz & tisdk-rootfs-image-am335x-evm.tar.gz remotely via internet

Question

how can i achieve this remotely?

Regards

0 Yordan Kovachev over 10 years ago in reply to Nick King

TI__Guru**** 161600 points

Hi Nick,

Here are the instructions on how to boot sitara via ethernet:
processors.wiki.ti.com/.../Ubuntu_12.04_Set_Up_to_Network_Boot_an_AM335x_Based_Platform
processors.wiki.ti.com/.../AM335x_U-Boot_User's_Guide

However, if you want to perform this remotely, you'll need to create some kind of custom application to automate the process.

Best Regards,
Yordan

0 Nick King over 10 years ago in reply to Yordan Kovachev

Expert 1280 points

Dear TI,

now i see on the BBB the following signals on its 40 pin headerMMC1_DAT0,MMC1_DAT1,MMC1_DAT2,MMC1_DAT3,MMC1_DAT4,MMC1_DAT5,MMC1_DAT6,MMC1_DAT7,MMC1_CMD,MMC1_CLK

Questions:

if i have a USB to eMMC port and i connect to these above pins will i be able to access the MMC1(NandFlash) of the BBB from external PC like windows,Mac,Linux. via USB and i do not power on the BBB but i give the VDD_3V3B required for eMMC from a 40 pin header

Regards

0 Biser Gatchev-XID over 10 years ago in reply to Nick King

TI__Guru**** 393215 points

I strongly recommend that you do not try this ever. You will damage the processor permanently. See "Steady state max voltage at all IO pins" in section 5 of the AM335X Datasheet Rev. I, and Note 8 below the table.

0 Nick King over 10 years ago in reply to Biser Gatchev-XID

Expert 1280 points

Thanks biser

i can see from the data sheet max voltage is -0.5 to 0.3V

Questions:

on the 40 pin header P9 of the BBB i can see VDD_5V,SYS_5V,VDD_3V3B are they input or output or bidirectional voltage supply?
and i don't understand why the MMC1_DAT0, MMC1_DAT1, MMC1_DAT2, MMC1_DAT3, MMC1_DAT4, MMC1_DAT5, MMC1_DAT6,MMC1_DAT7, MMC1_CMD and MMC1_CLK are connected to the 40 pin header is it to connect an external memory (MMC1) device to the BBB or to allow external processor to access the MMC1(memory device) of the BBB.

Regards

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updating software remotely