LPCXpresso IDE中的主题 Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:19 GMT

Content originally posted in LPCWare by DaveNadler on Sat Oct 08 14:12:08 MST 2011
[FONT=Arial]In LPC11Cxx, In Application Programming (IAP) command 57 invokes In-System Programming (ISP).
Unfortunately there is no command 57 input argument to specify load via serial or CAN, and IAP documentation talks about configuring TX/RX but does not mention CAN.
Does bootloader look at PIO0_3 when invoked by IAP ?
Thanks in advance,
Best Regards, Dave
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Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:20 GMT

Content originally posted in LPCWare by Ex-Zero on Sat Oct 08 14:23:53 MST 2011

Quote: DaveNadler
[FONT=Arial]Does bootloader look at PIO0_1 when invoked by IAP ?[/FONT]

No :mad: [FONT=Arial]PIO0_3 [/FONT]:eek:

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:21 GMT

Content originally posted in LPCWare by DaveNadler on Sat Oct 08 14:31:48 MST 2011
[FONT=Arial]Sorry Zero for the typo; fixed.
Question is: Can NXP confirm ISP looks at the pin and boots from CAN when invoked from IAP ?
Really unfortunate to tie up the pin but better than missing functionality...
Thanks ![/FONT]

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:21 GMT

Content originally posted in LPCWare by Ex-Zero on Sat Oct 08 14:38:01 MST 2011

Quote: DaveNadler
[FONT=Arial]Question is: Can NXP confirm ISP looks at the pin and boot from CAN when invoked from IAP ?[/FONT]

Don't know if NXP can confirm that :confused:, but all my LPC11Cxx are starting CAN bootloader after IAP57, if PIO0_3 is low :eek:

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:22 GMT

Content originally posted in LPCWare by DaveNadler on Sat Oct 08 14:45:37 MST 2011
[FONT=Arial]Excellent, Thanks Zero !
NXP, [U]please[/U] update the IAP documentation for LPC11Cxx !
Thanks,
Best Regards, Dave
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Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:23 GMT

Content originally posted in LPCWare by NXP_Europe on Wed Oct 12 04:41:59 MST 2011
Hello Dave,

According the User Manual (UM10398) at:

* Reset [B]&[/B] PIO0_1 = 0 [B]&[/B] PIO0_3 = 1 the start of the flash ISP command handler via [B]UART[/B]
* Reset [B]&[/B] PIO0_1 = 0 [B]&[/B] PIO0_3 = 0 the start of the flash ISP command handler via [B]C_CAN[/B]

Speed of CAN = 100 kbits
node ID value = 0x7D

Using Command code: 57 ... see Reinvoke ISP (table 305 ... Rev6 UM10398).
No choice of C_CAN is possible, only UART is used.

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:23 GMT

Content originally posted in LPCWare by Ex-Zero on Wed Oct 12 05:57:24 MST 2011

Quote: NXP_Europe
Using Command code: 57 ... see Reinvoke ISP (table 305 ... Rev6 UM10398).
No choice of C_CAN is possible, only UART is used.

Do you try to explain us, that IAP57 isn't executing C_CAN bootloader, if PIO0_3 is low :confused:

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:24 GMT

Content originally posted in LPCWare by DaveNadler on Wed Oct 12 15:20:48 MST 2011
[FONT=Arial]NXP Support:
(1) Your answer seems to directly contradict Zero's experience with the part ?
(2) [FONT=Times New Roman][I]"User Manual (UM10398 rev.6 ) 21.7.8 Reinvoke ISP (IAP) Table 305. IAP Reinvoke ISP[/I][/FONT]" should state [U][B]explicitly[/B][/U] whether or not ISP via CAN is supported !
Can you double-check this and clarify ?
Thanks !
Best Regards, Dave
[/FONT]

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:24 GMT

Content originally posted in LPCWare by Ex-Zero on Thu Oct 13 10:04:23 MST 2011
So no answer is an answer as well :rolleyes:

Don't know if there's someone responsible from NXP listening and changing user manuals, but of course IAP57 (table 306) does switch via PIO0_3 to UART [B][COLOR=Red]or[/COLOR][/B] C_CAN bootloader :)

Dozens of LPC11C14 are doing that here :eek:

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:25 GMT

Content originally posted in LPCWare by NXP_Europe on Fri Oct 14 01:42:21 MST 2011
Hello Zero,

we will correct this part in the User Manual.

Thanks for your efforts.

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:25 GMT

Content originally posted in LPCWare by TheoVanMaanen on Sat Oct 15 06:22:06 MST 2011
Dear ...,

is it possible to reload the software of an LPC11Cxx in a netwerk?
So device is mounted in netwerk of (?) 50 other devices and new software has to be loaded remotely.

Anybody experience with that?

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:26 GMT

Content originally posted in LPCWare by Ex-Zero on Sat Oct 15 07:24:08 MST 2011
Yes, it is :)

User manual describes how bootloader data are transmitted via CAN :eek:

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:27 GMT

Content originally posted in LPCWare by DaveNadler on Mon Oct 17 05:37:22 MST 2011
[FONT=Arial]NXP, thanks in advance for correcting the documentation !
Thanks Zero, looks like you have some big influence at NXP :)
Best Regards, Dave

PS: Theo, you'll want to individually address each device
with (your own) CAN message signalling time to update,
then then have your application start software ISP update
via IAP57 per thread below.

PPS: Zero, next step is to get an example answering:
http://knowledgebase.nxp.com/showthread.php?p=11810#post11810[/FONT]

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:28 GMT

Content originally posted in LPCWare by Ex-Zero on Mon Oct 17 07:42:02 MST 2011

Quote:

...looks like you have some big influence at NXP...

Yes, 2 LPCXpressos lost in space, that magic...

Quote:

...next step is to get an example answering...

Wasn't this question answered by someone :rolleyes:

"left as an exercise for the reader"

So I'm still waiting if you've done your exercise :)

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:28 GMT

Content originally posted in LPCWare by NXP_Europe on Mon Oct 17 11:53:30 MST 2011

Quote: Zero
Yes, 2 LPCXpressos lost in space, that magic...

An email was sent about this to the address associated with your account on the forums. Did you not get that?

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:29 GMT

Content originally posted in LPCWare by Ex-Zero on Mon Oct 17 12:57:18 MST 2011

Quote: NXP_Europe
Did you not get that?

No :eek: When did that happen ?

Checked my email address, it's valid. Checked my 20 PC's, Laptops, Notebooks, cell phones and toasters - nothing :mad:

But there's still an option left, I've a thumbscrew somewhere in my cellar and so I can 'ask' my trainee tomorrow :)

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:29 GMT

Content originally posted in LPCWare by NXP_Europe on Mon Oct 17 15:16:14 MST 2011

Quote: Zero
No :eek: When did that happen ?

I gave it another shot ... let us know if the email made it through.

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:30 GMT

Content originally posted in LPCWare by Ex-Zero on Mon Oct 17 15:24:15 MST 2011

Quote: NXP_Europe
I gave it another shot ... let us know if the email made it through.

Yes, just received it :)

...and replied.

Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:31 GMT

Content originally posted in LPCWare by DaveNadler on Sat Oct 22 12:29:41 MST 2011
[FONT=Arial]Next question:
Rev 6 user manual [B][I]"Fig 68. Boot process flowchart"[/I][/B]
shows that, iff user code is invalid, ISP from serial port will be
invoked. This means if anything interrupts device programming,
a CAN-only device will be bricked. What we would hope for is
invalid user code would test [B][I]C_CAN BOOT? (PIO0_3 = LOW)[/I][/B]
rather than only trying to bootload from serial...

Questions:
- Is this flowchart incorrect ?
- Or, is this a design oversight ?
- Zero, have you tested this ?

Thanks in advance,
Best Regards, Dave

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Re: Invoking CAN bootloader via IAP on LPC11Cxx ?

lpcware — Wed, 15 Jun 2016 23:32:31 GMT

Content originally posted in LPCWare by Ex-Zero on Sat Oct 22 12:45:39 MST 2011

Quote: DaveNadler
...[FONT=Arial]have you tested this...[/FONT]

Since I've no problems with switching to CAN-bootloader via IAP57 I think the part with reading PIO0_3 has been forgotten in many descriptions / charts...

So this chip is working as we think it should work: reading PIO0_3 before switching to serial bootloader :)