Using the Hitex LPC4350 evaluation board

[lpcware]

Content originally posted in LPCWare by JohnR on Sun Mar 11 10:28:13 MST 2012
I would like to use the Hitex LPC4350 evaluation board together with the NXP/Code_Red compiler. I have several LPCXpresso boards - can I use a
LPC-Link card from one of them to talk to the Hitex board. If so what,interface connector on the board do I use - maybe X18 (debug connector) or X5 (ETM/SWD connector)?

Or should I get the RedProbe debug probe? Is it directly compatible with the Hitex board?

Thanks in advance for any help,

JohnR

[lpcware]

Content originally posted in LPCWare by johngardner58 on Fri Jun 01 15:10:19 MST 2012
LCDTerm.c (in the CMSIS driverLib) is incorrect for A4 and doesn't work.   It doesn't utilize the mux and I'm not sure it configures the correct GPIO lines for LCD that is included on the evaluation board.

I have build 292 v4.2.3 and am using the code that came with it.  We looked at the schematic for the A4 and confirmed a different mapping for the GPIO and the presence of a mux for the LCD output

[lpcware]

Content originally posted in LPCWare by NXP_USA on Tue Mar 13 14:06:45 MST 2012
Floating point- remember, the Cortex-M4 FPU in the LPC43xx is single-precision. Double-precision floating-point math will not be accelerated by the FPU. Make sure to use single-precision math functions for best results.

[lpcware]

Content originally posted in LPCWare by CodeRedSupport on Tue Mar 13 02:13:18 MST 2012
I've certainly not seen any issues with floating point on the LPC43.  There is an option to enable its use within the project wizard.

Regards,
CodeRedSupport

[lpcware]

Content originally posted in LPCWare by JohnR on Mon Mar 12 07:56:09 MST 2012
That's great.

Another question. Is the floating point unit in the chip functional and accessible?

JohnR.

[lpcware]

Content originally posted in LPCWare by CodeRedSupport on Mon Mar 12 06:33:54 MST 2012
We've now created an FAQ to hold LPC1850/4350 related information...

http://support.code-red-tech.com/CodeRedWiki/LPC1850_4350_Support

Regards,
CodeRedSupport.

[lpcware]

Content originally posted in LPCWare by JohnR on Mon Mar 12 04:59:52 MST 2012
Thank you very much for your comprehensive reply.

JohnR

[lpcware]

Content originally posted in LPCWare by CodeRedSupport on Mon Mar 12 01:46:18 MST 2012
The LPC4350 (and LPC1850) have gone through a rather long gestation period, with several pre-production silicon revisions and variants of the Hitex eval board.

Going forward we recommend (and will only provide support in LPCXpresso) production silicon and rev A4 of the Hitex eval board.

The easy ways to tell if your Hitex eval board is rev A4 is...

[LIST]
[*] To look at the text on the underside of the board. If it says "LPC1850EVA-A4, then you have an A4 board. (Earlier revisions may say, for example, "LPC1850EVA-A2.) Or...
[*]As Ken say, look at the JTAG connector, which is just below the long LCD connector. A 10 pin connector means a rev A4 board. A 20pin means an earlier variant.
[/LIST]
You also want to check your silicon revision. To our knowledge (which NXP may be able to comment on), you want production silicon - which is marked "AY". The full markings on the chip that I have here are:

NXP
LPC4350FET256
P6G566.04
ESD11460AY

With regards to LPC-Link - yes this can be used to debug LPC4350. There are several advantages to using a Red Probe+, notably performance (both download and also during general debug), and support for Red Trace (when used with Red Suite rather than LPCXpresso IDE).

If you purchase a Red Probe+ for use with the Hitex LPC4350 rev A4 board, then you will also want a 10-20pin adapter. These can be purchased from a number of sources, including our webstore.

http://store.kagi.com/cgi-bin/store.cgi?storeID=6FFKK_LIVE&lang=en&view=detail&productID=31805985685...

Regards,
CodeRedSupport.

[lpcware]

Content originally posted in LPCWare by JohnR on Sun Mar 11 18:37:56 MST 2012
Thanks Ken and Zero.

After being out of stock for a while, Digikey (US) have recently got a single Hitex LPC4300 board in stock (OM13031,598) but the accompanying documentation refers to the A2 version

Is there anyway of finding out whether the board is A4 or A2? I guess both versions work OK but it would be nice to have the current one.

Is the SD-card socket populated?

JohnR.

[lpcware]

Content originally posted in LPCWare by kendwyer on Sun Mar 11 16:49:09 MST 2012
Hi,

There are two variants of Hitex board A2 and A4 versions, see the schematics here:
http://www.lpcware.com/gfiles/devper/lpc18xx
The A2 is the older board version and it supports a 20 Pin JTAG connection where as the newer A4 version supports the 10pin JTAG connector.
LPC-Link will work with both assuming you have the correct cables as per Zero's comments.

[lpcware]

Content originally posted in LPCWare by Ex-Zero on Sun Mar 11 13:56:15 MST 2012
I'n not familiar with this board, but HITEX schematics and pictures

http://www.hitex.com/index.php?id=lpc1800-download

also doesn't show X4 :(

LPC-Link is a low-cost solution for LPCXpresso, so Red Probe+ is more powerful and includes more functions :)

http://www.code-red-tech.com/red-probe-plus.php

It's standard JTAG connector (20-pin 0.1. pitch) can be used via adapter like:

http://www.embeddedartists.com/products/acc/acc_jtag_adapter_kit.php

[lpcware]

Content originally posted in LPCWare by JohnR on Sun Mar 11 13:09:33 MST 2012
Thanks, Zero.

I got quite puzzled by the different schematic/BPLs available on the web. I think that some of the LPC4300 documents on lpcware are out of date? For instance no JTAG (x4) is shown (http://www.lpcware.com/sites/default/files/LPC1850EVA-A4-2_SCHEMATICS.pdf).

Is the RedProbe debug probe compatible with the JTAG connector (x4)? Is there any advantage using this rather than the LPC-Link card?

JohnR.

[lpcware]

Content originally posted in LPCWare by Ex-Zero on Sun Mar 11 11:40:51 MST 2012

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Quote: JohnR
...what interface connector on the board do I use - maybe [COLOR=Red]X18 [/COLOR](debug connector)...

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Yes, that's an easy way to connect LPC-Link :)