topic Making on board LEDs work with LPC1837 in LPC Microcontrollers

Making on board LEDs work with LPC1837

gvk51 — Fri, 01 Jul 2016 18:43:20 GMT

Hi Folks,

LEDs do not work with the examples source code shared by NXP, lpcopen_2_18_lpcxpresso_nxp_lpcxpresso_1837

on board we have 3 LEDs

Red - Power indicator

Yellow & Blue - (user configurable), these are connected to GPIO1[11] & GPIO1[12], do the following modifications in the lpc_board_nxp_lpcxpresso_1837/src/board.c file

//remove this line

-static const io_port_t gpioLEDBits[] = {{3, 5}, {0, 7}, {3, 7}};

//add this line

+static const io_port_t gpioLEDBits[] = {{3, 5}, {1, 11}, {1, 12}};

use the MACROS LEDS_LED1 & LEDS_LED2 to make then turn ON/OFF using the api Board_LED_Set(LEDS_LED2, 1);

Thanks & Regards,

Vamshi G.

Re: Making on board LEDs work with LPC1837

jeremyzhou — Tue, 19 Jul 2016 09:13:06 GMT

Hi Vamshi,

I've got a LCP1857 board now, then I'll replicate the issue.

And I'm going to inform you ASAP if I figure it out.
Have a great day,
Ping

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Re: Making on board LEDs work with LPC1837

gvk51 — Tue, 19 Jul 2016 10:43:22 GMT

Hi Jeremyzhou,

I shared my observation on LPC1837, Yeah please check this on your board and update me, I will be following it.