6 years, 9 months ago.

Problem with KL25Z SPI and on board RGB led

The pin PTD1 is occupied by the RGB led on board and shared with signal sck of SPI as well. The implement of SPI is always with flash of blue led just like a communication indicator... Is there any workaround for this?

1 Answer

6 years, 9 months ago.

Remove the LED, or cut the connection to only the blue pin of the LED, or use another pin. Here is the full list of available SPI pins: http://mbed.org/users/mbed_official/code/mbed-src/file/c1fbde68b492/targets/hal/TARGET_Freescale/TARGET_KL25Z/spi_api.c (all the pins you use for your SPI connection need to be either SPI_0 or SPI_1, besides that you can mix it around as much as you like).

Accepted Answer

Practical and useful solution. Thanks a lot!

posted by Yuan Co 21 Jan 2014