Date: Thu, 1 May 2014 11:38:45 -0400 From: Winston Smith <smith.winston.101@gmail.com> To: Rui Paulo <rpaulo@freebsd.org> Cc: freebsd-arm <freebsd-arm@freebsd.org>, Mark R V Murray <mark@grondar.org> Subject: Re: i2c on RPI-B not working Message-ID: <CADH-AwGxCRncJZGeNigN6B_3S0ojNWCNYZigUV%2BSqrw%2BgMOMtw@mail.gmail.com> In-Reply-To: <CADH-AwFDk2uzOcNQQx%2BL%2BHGBgc7vccQVXLta_g6D3HRHhZxYsQ@mail.gmail.com> References: <93181B67-1944-4DDD-A595-455D2AE9B110@grondar.org> <1CFC3564-65F0-4DC8-950C-3D53BBB2761C@FreeBSD.org> <CADH-AwFDk2uzOcNQQx%2BL%2BHGBgc7vccQVXLta_g6D3HRHhZxYsQ@mail.gmail.com>
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On Wed, Apr 30, 2014 at 7:49 PM, Winston Smith
<smith.winston.101@gmail.com> wrote:
> 1) Hopefully, you'll have more luck with the i2cscan.c tool I wrote than I did!
> 2) Does anyone know why I'm not detecting any i2c devices on the BBB?
I fixed the i2cscan.c tool and it's able to detect the various i2c
devices (including the EEPROM at 0x50) on the BBB's I2C0 bus:
root@beaglebone:~ # ./i2cscan /dev/iic0
Checking device: /dev/iic0
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- 24 -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- 34 -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
I have updated the pastebin for this:
http://pastebin.com/RxpRCyJU
help
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