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freeRTOS + LPC210x + SPI driver

Posted by altraqua on October 24, 2004
I'm new to freeRTOS.

I saw that there isn't a SPI driver for LPC210x and freeRTOS.

If i start to write it, i shoud follow some driver interface specifications?

I yes, where i can try this specs?

Hi.

RE: freeRTOS + LPC210x + SPI driver

Posted by Richard on October 25, 2004
Hi,

The function naming convention is detailed here
http://www.freertos.org/a00017.html#NamingConventions

There is no formal functionality or interface convention. It is best to write the driver to be optimal for your own application – if other people then use it they have the option to tinker with it to optimize it for their application – creating a flexible system.

You can use the serial port code as a template for an interrupt driven driver. An SPI driver would be slightly different in that the serial port driver is a single stream of characters, whereas an SPI driver may contain distinct messages within the stream. I will be writing an I2C driver for the LPC2000 in the next few days. This will be similar - probably a queue of messages, each of which is a sequence of characters. I can send you the code (pre release) when complete if you like.

Best regards,
Richard.

RE: freeRTOS + LPC210x + SPI driver

Posted by altraqua on October 25, 2004
OK, thank you!

RE: freeRTOS + LPC210x + SPI driver

Posted by Teun on October 25, 2004
I've written a SPI bus driver for the LPC2114 + FreeRTOS last week. It works on an LPC210x as well except for the 2nd SPI device of course ;)
I'm willing to share it with you if you are interested.
Due to the fact that I am currently missing the required debug hardware it is not working yet. There are probably just a few bugs that need to be solved. This should be completed within a fair amount of time, but of course any help is very much appreciated.

With kind regards,
Teun

RE: freeRTOS + LPC210x + SPI driver

Posted by Allure99 on March 26, 2008
Hi Richard,


I working on AT91SAM7X256_ROWLEY.
Do you have any support code for SPI?
can you please send me the code if you have any or the I2C driver will do as well.

Many Thanks
Regards
H


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