topic Re: LPC4088 and serial expansion connector in LPC Microcontrollers

LPC4088 and serial expansion connector

lpcware — Wed, 15 Jun 2016 18:31:44 GMT

Content originally posted in LPCWare by blex on Thu Apr 17 06:38:13 MST 2014
Hello!

I'm trying to run this display with a EA OEM Base Board. Connected is the display to the serial expansion connector.
To controll the display, I use the example project from EA and modified the header-files with the pin configuration. And here I've some issues. In the LPC4088 OEM Board Users Guide the SPI ports are related with P5.0, P5.1, P5.2 and the comment "SSP#2 is used". But in LPC4088 User Manual P5.x have no SSP2 function. Only P1.0, P1.1, P1.4 and P1.8 have this.
Now I've got no idea how to configurate the SPI ports right.
I tried it with this:

PINSEL_ConfigPin (1, 0, 4);
PINSEL_ConfigPin (1, 4, 4);
PINSEL_ConfigPin (1, 1, 4);

Thanks for the help,
Blex

Re: LPC4088 and serial expansion connector

lpcware — Wed, 15 Jun 2016 18:31:47 GMT

Content originally posted in LPCWare by Wouter on Thu Apr 17 12:15:32 MST 2014
Hi Blex,

Which example project are you actually referring to? I don't know any 1788 BSP which support the 1.5" OLED (though I might just not be aware of it). The OLED display differs quite a lot from the EA 3.2/4.3/7" LCDs, as the OLED uses SPI for LCD data, while the other displays use the RGB interface.

As you may have noticed, the LPC4088 is a pin-compatible replacement for the LPC1788. However, due to the added functionality, the EA4088 OEM module differs a little bit from the EA1788 OEM module. This migration document notes the difference. Most importantly, you'll need to change the SSP0 in your software to SSP2.

P5.x does have the SSP2 functionality, see page 118 & 137 of the LPC4088 UM.

Regards,
Wouter

Re: LPC4088 and serial expansion connector

lpcware — Wed, 15 Jun 2016 18:31:49 GMT

Content originally posted in LPCWare by blex on Tue Apr 22 00:01:07 MST 2014
Hey Wouter,

thank you very much. In my manual (Rev. 1 - 13 Sept 2012) there is nothing but emptiness in column 010. See screenshot.
Now I have signals on the connectors :)

Regards,
Blex

Re: LPC4088 and serial expansion connector

lpcware — Wed, 15 Jun 2016 18:31:53 GMT

Content originally posted in LPCWare by Wael_Murtada on Mon May 05 16:29:09 MST 2014
I used UART1 for zero copy interrupt communication on LPC 4088 IAR starter kit. How can i get output from UART1. I tried to use DB9 connector but i didn't get any result. Please help me to solve problem.

Thanks.

Re: LPC4088 and serial expansion connector

lpcware — Wed, 15 Jun 2016 18:31:55 GMT

Content originally posted in LPCWare by mtesmer on Wed Jun 11 06:07:25 MST 2014
Hi,

Quote:
In the LPC4088 OEM Board Users Guide the SPI ports are related with P5.0, P5.1, P5.2 and the comment "SSP#2 is used". But in LPC4088 User Manual P5.x have no SSP2 function

100% SSP2 is assigned to those pins. (EA guy conifirm this). Whole EA demo working on this config. There is a mistake (or rather misinformation) in manual and so far nobody from NXP bother to update it.

Re: LPC4088 and serial expansion connector

lpcware — Wed, 15 Jun 2016 18:31:57 GMT

Content originally posted in LPCWare by Wouter on Wed Jun 11 10:45:00 MST 2014
Hi mtesmer,

Could you clarify what mistake/misinformation is still present in the LPC4088 UM?
Latest UM (rev 3, March 2014) seems to have all correct information regarding SSP2/P5.x: http://www.nxp.com/documents/user_manual/UM10562.pdf

Please let us know if there are any more errors present.

Regards,
Wouter