LPC Microcontrollers中的主题 Re: FDI Development Kit

FDI Development Kit

lpcware — Wed, 15 Jun 2016 17:26:08 GMT

Content originally posted in LPCWare by Dave on Sat Jul 16 21:17:20 MST 2011
Hi all,

I'm using the DK-57VTS-LPC1788 as a tutorial before I design my own system board, based on the LPC1788, and I was looking for others that are doing the same thing.

Anybody else out there using this processor?

It's a new processor (as of May 2011), but looks like it has a lot of potential.

If there's anyone else looking for technical discussion, I'm open.

-Dave

Re: FDI Development Kit

lpcware — Wed, 15 Jun 2016 17:26:09 GMT

Content originally posted in LPCWare by psampaio on Sun Jul 31 23:40:16 MST 2011
Hi Dave,

I start using the LPC1788 this week.
I do my own board based in another board that I made with the LPC2478.
Now I'm assembly the board, step by step.
I put the debugger running (jtag with openocd, gcc toolchain and eclipse).
At moment my SDRAM works at 60Mhz but I will try 120Mhz.
Now I'm working in lcd controller.

PSampaio

Re: FDI Development Kit

lpcware — Wed, 15 Jun 2016 17:26:09 GMT

Content originally posted in LPCWare by nxp21346 on Mon Aug 01 09:42:00 MST 2011
The SDRAM interface runs at a maximum of 80 MHz. This is shown in the timing specs in the Datasheet- minimum clock cycle time is 12.5 ns.<span class="inline inline-left"><img src="http://lpcware.com/sites/default/files/images/Capture.PNG" alt="" title="" class="image image-_original " width="683" height="145" /></span>

Re: FDI Development Kit

lpcware — Wed, 15 Jun 2016 17:26:10 GMT

Content originally posted in LPCWare by Dave on Mon Aug 01 10:54:43 MST 2011
Hi PSampaio!

I'm using the Keil toolchain, and I've been learning about the processor on the development kit. I'm just getting started laying out my own board. I've got fundamental things working like the SDRAM, the LCD controller, the SPI bus (to interface to a SD memory card), I2C, and I just got the Host Lite USB working...

I look forward to talking further with you.

-Dave

Re: FDI Development Kit

lpcware — Wed, 15 Jun 2016 17:26:10 GMT

Content originally posted in LPCWare by Dave on Mon Aug 01 11:02:50 MST 2011
This is what I've heard...

Although, I have it successfully running at 120Mhz... which is 150% faster than this value...

We had a discussion about this on the keil forum ( http://www.keil.com/forum/19185/ ).

and NXP tech support stands by this claim, so my advice is go with what works best for you...

For me, I only have a single piece of hardware right now to test with, so I can't confirm that ALL processors will run faster, just that the one I have currently will...

Seems odd, doesn't it, that even at 150%, it still works fine?

I wish I could talk with the hardware engineers and find out what they have to say...

Re: FDI Development Kit

lpcware — Wed, 15 Jun 2016 17:26:11 GMT

Content originally posted in LPCWare by LesInk on Mon Aug 08 12:49:51 MST 2011
Dave,

The uEZ code at http://sourceforge.net/projects/uez should contain much of the software you may need for the DK-57VTS-LPC1788. If you find problems with it (I see you went through EMC initialization in another post), feel free to let us know.

Lysle
Future Designs, Inc.

Re: FDI Development Kit

lpcware — Wed, 15 Jun 2016 17:26:11 GMT

Content originally posted in LPCWare by Dave on Mon Aug 08 20:03:18 MST 2011
Lysle,

I have downloaded this code, and have used is as a reference many, many times during my learning process - Thank you for the software. It has been an huge help to me.

Although I find it a little under-commented, it certainly made my learning curve a lot steeper than had I started with only a data sheet.

I haven't found any problems with it to date.

Thanks again,

Dave