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Altera_Forum's avatar
Altera_Forum
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19 years ago

Opencores I2C Core and uClinux Driver

I have added an Altera Avalon SOPC Builder I2C Master component based on the Opencores I2C Host.

http://via.dynalias.org/svn/fpga/cores/i2c_master/trunk/ (http://via.dynalias.org/svn/fpga/cores/i2c_master/trunk/)

Either download using the web, or use SVN to check out the project..

I simply created a wrapper for this and the necessary files to drop this component onto the Avalon bus, so I don't take any credit for this core. This will just make it easier for new people not wishing to go through this hassle.

Also, I am working on getting the uClinux driver up and running. There is an Opencores driver already included in 2.6.16.1, so I will just be modifying/testing that and posting the results here.

J

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  • Altera_Forum's avatar
    Altera_Forum
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    19 years ago

    Hippo,

    OK. I can confirm, I have compiled the uclinux image w/o problem (w/ oc i2c master).

    Now, I need some things to test it.

    Can you point me to some apps and code for testing this ?

    I assume I have to create a device /dev/i2c-0 in romfs_list ?

    I will wire the hardware to some devices I have. Many thanks.
  • Altera_Forum's avatar
    Altera_Forum
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    19 years ago

    --- Quote Start ---

    originally posted by albertyong88@Nov 3 2006, 06:30 AM

    hippo,

    ok. i can confirm, i have compiled the uclinux image w/o problem (w/ oc i2c master).

    now, i need some things to test it.

    can you point me to some apps and code for testing this ?

    i assume i have to create a device /dev/i2c-0 in romfs_list ?

    i will wire the hardware to some devices i have. many thanks.

    <div align='right'><{post_snapback}> (index.php?act=findpost&pid=19115)

    --- quote end ---

    --- Quote End ---

    Look in, linux-2.6.x/Documentation/i2c .
  • Altera_Forum's avatar
    Altera_Forum
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    19 years ago

    Hippo,

    I tried to include lm_sensors (which includes i2ctools) in menuconfig, but it got error.

    Please help 

    make: Entering directory `/home/uclinux/uClinux-dist/lib/sysfsutils&#39;
rm -rf build
mkdir build
(cd build; sh ../configure --host=nios2-linux-uclibc --build=i686-pc-linux-gnu --target=nios2-linux-uclibc )
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for nios2-linux-uclibc-strip... nios2-linux-uclibc-strip
checking build system type... i686-pc-linux-gnu
checking host system type... Invalid configuration `nios2-linux-uclibc&#39;: machine `nios2-linux&#39; not recognized
configure: error: /bin/sh ../config.sub nios2-linux-uclibc failed
make: ***  Error 1
make: Leaving directory `/home/uclinux/uClinux-dist/lib/sysfsutils&#39;
make: ***  Error 2
make: Leaving directory `/home/uclinux/uClinux-dist/lib&#39;
make: ***  Error 2
make: Leaving directory `/home/uclinux/uClinux-dist/lib&#39;
make: ***  Error 1
uclinux@colinux:~/uClinux-dist$
  • Altera_Forum's avatar
    Altera_Forum
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    19 years ago

    You should create a new topic for a new question.

    If the thread got too long, it is difficult to read by others.
  • Altera_Forum's avatar
    Altera_Forum
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    19 years ago

    hey

    i tried to download the link from i2c master in the first post, but link does not match... could u pls update the link ?