LPC11c24: Update over CAN.

[lpcware]

Content originally posted in LPCWare by hetii on Mon Jun 23 07:45:54 MST 2014
Hi :)

As I read from data-sheet of lpc11c24, there is possibility to update his firmware over CAN bus.

where can I see some example code about that and how this functionality is related to CRP protection?

Best regards.

[lpcware]

Content originally posted in LPCWare by 1234567890 on Wed Jul 16 13:27:34 MST 2014

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Quote: hetii

At the end of the day I will have hundred of them (without physical access) and really need possibility to update them over CAN.

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Well, in this case (no physical access) you better want to go on to 26.7 (IAP) in the UM.

[lpcware]

Content originally posted in LPCWare by LabRat on Wed Jul 16 12:56:33 MST 2014

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Quote: hetii
In data-sheet I read: The C_CAN API includes the following functions: Flash ISP programming via C_CAN supported, but there is no any additional information about how to do it.

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:quest:

UM is describing CAN_ISP:

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Quote:

26.6.1 C_CAN ISP SDO communication

26.6.2 C_CAN ISP object directory

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Just start there...

[lpcware]

Content originally posted in LPCWare by hetii on Wed Jul 16 10:05:39 MST 2014
Hi.

Well I have few lpcxpresso board with lpc11c24 so I plan use them for beginning.

I have already working communication over CAN with few of my nodes.

At the end of the day I will have hundred of them (without physical access) and really need possibility to update them over CAN.

In data-sheet I read: The C_CAN API includes the following functions: Flash ISP programming via C_CAN supported, but there is no any additional information about how to do it.

Maybe some engineer from lpcware can provide some information about the way?

Regards.

[lpcware]

Content originally posted in LPCWare by LabRat on Wed Jul 16 04:16:42 MST 2014

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Quote: hetii
Still wait for any tips about updating over CAN....

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OK, you've asked  :O

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Quote: hetii
As I read from data-sheet of lpc11c24, there is possibility to update his firmware over CAN bus.

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Yes, it's possible.

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Quote: hetii
where can I see some example code...

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There's no Open Source Example.

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Quote: hetii
...any tips...

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Tip: Flash-Magic is using a PEAK adapter:  http://www.peak-system.com/PCAN-USB.199.0.html?&L=1

Tip: Using CAN-Bootloader isn't too difficult if you are familiar with CAN ('Segmented Transfer'). So using a LPC11C14 or better a LPC15xx as CAN-Programmer is possible. But that's an awful lot of work so it would strongly recommend to buy a 'cheap' PEAK and use Flash-Magic  ;-)

But anyway, if you want to learn how CAN is working and spent several hundred hours in building your own programmer I would suggest to use a LPC1549. It's USB can read a new image and store it in internal Flash (256k). So it can be used as 'Standard' programmer (with PC) and also as  (3V battery powered) standalone version...  

[lpcware]

Content originally posted in LPCWare by hetii on Wed Jul 16 02:55:26 MST 2014
Hey again.


Still wait for any tips about updating over CAN....