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From: llandre <r&d2@dave-tech.it>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] MX31ADS: I2C1 bus
Date: Fri, 06 Jun 2008 10:46:16 +0200	[thread overview]
Message-ID: <4848F958.2060809@dave-tech.it> (raw)

Hi Sascha,

I downloaded current u-boot repo to perform a simple test on MX31ADS: I 
just have to verify that an I2C component connected to JP13 is detected 
by U-Boot (iprobe).
So I enabled the I2C support in MX31ADS config file:

/* I2C */
#define CONFIG_HARD_I2C		1
#define CONFIG_I2C_MXC		1
#define CFG_I2C_MX31_PORT1	1
#define CFG_I2C_SPEED		100000
#define CFG_I2C_SLAVE		0xfe


U-Boot builds and boots fine however, when issuing iprobe command, SDA 
and SCL lines are stuck at ~2.1V. JP6 and JP7 are both in 2-3 position.

Am I missing something?


TIA,
llandre

DAVE Electronics System House - R&D Department
web:   http://www.dave.eu
email: r&d2 at dave-tech.it

             reply	other threads:[~2008-06-06  8:46 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-06  8:46 llandre [this message]
2008-06-09 20:14 ` [U-Boot-Users] MX31ADS: I2C1 bus Robert Schwebel

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