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Altera_Forum's avatar
Altera_Forum
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20 years ago

NIOSII - Write output to Dev kit LCD

I am trying to switch over to eCos from MicroC/OS-II. I have succesfully installed eCos for NIOS 5.0. I have built and run the eCos hello example. I am now trying to modify the hello example ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

monkeyboy,

Thanks for your assistance. I can now access all of my PIO interfaced devices.

FYI for anyone coming from MicroC/OS:

You need to include the following header file.

# include <cyg/hal/io.h> /* Additional HAL device IO support.*/

You will also need to replace all ALTERA AVALON PIO reads and writes

Such as:

IOWR_ALTERA_AVALON_PIO_DATA and IORD_ALTERA_AVALON_PIO_DATA

With:

IOWR_16DIRECT(BASE, OFFSET, DATA) and IORD_16DIRECT(BASE, OFFSET)

You will need to use the appropriate size function i.e. 8,16,32 bits too.

http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/cool.gif