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19 Commits

Author SHA1 Message Date
David Alessio
839efa6669 Merged in david_alessio/apps/bugfix/i2ctool-dev-clobbers-slave-config (pull request #198) 
Bugfix/i2ctool dev clobbers slave config

* friendlier I2C "knock-knock" uses only read request

    While many I2C slave devices have multiple indexed registers, some have
    only one register and it's not indexed.  For example, the I2C bus switch
    TCA9548A has only a Control Register, attempting to index to "Reg[0]"
    alters its contents to 0x00 disabling all subordinate buses.  This patch
    fixes that problem by simply trying to read something/anything from the
    slave.  This also helps coax out slaves with register files that start
    from a higher index, i.e. the AT24CS0x, FLASH chips with a UUID that
    appears as a 2nd I2C slave at (address+8), report their serial number at
    Reg[80]-Reg[8F] and will NAK a read of Reg[0].

* modify get/set to prevent write of reg index if not specifed

Approved-by: Gregory Nutt <gnutt@nuttx.org>
 2019-08-20 20:29:21 +00:00
Juha Niskanen
0bcd50d7a1 apps/: Make more globals static to avoid name clashes 2017-05-19 07:13:12 -06:00
Gregory Nutt
bb9b4c8063 Low level drive access functions should not generate output; it interferes with higher level formatting 2016-02-02 14:42:16 -06:00
Gregory Nutt
7c4f9eb8e9 I2CTOOL: Now uses the I2C driver instead of direct calls into the OS 2016-02-02 10:27:50 -06:00
Gregory Nutt
2709652753 The I2C_TRANSFER method is no longer optional 2016-01-31 14:15:07 -06:00
Gregory Nutt
f0eb017434 Rename i2c_dev_s to i2c_master_s. 2016-01-30 08:37:28 -06:00
Gregory Nutt
c4395122f9 Move include/nuttx/i2c.h to include/nuttx/i2c/i2c_master.h 2016-01-30 08:00:59 -06:00
Gregory Nutt
e9447c6058 Standardize nameing of the pre-processor definitiongs group header 2015-10-02 14:06:11 -06:00
Gregory Nutt
3ec21f41c1 Remove use of CONFIG_MASK_TASK_ARGS from the I2C tool 2014-11-13 06:27:47 -06:00
Gregory Nutt
2b0f1ed109 Change all variadic macros to C99 style 2014-05-22 09:01:51 -06:00
Gregory Nutt
459d89d9db Remove CONFIG_XYZ_BUILTIN configurations, replace with the single CONFIG_NSH_BUILTIN_APPS. Add SAM3/4 sam_periphclks.h which is just a header file that includes the right header file. Misc SAM3U-EK cleanup 2013-06-12 17:32:00 -06:00
patacongo
f8e08440f7 Email address change in apps/ 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5143 42af7a65-404d-4744-a932-0658087f49c3
 2012-09-13 16:58:49 +00:00
patacongo
9233cd668e Add I2C trace capability; Fix another STM32 I2C/FSMC bug; add verify command to the I2C tool 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3961 42af7a65-404d-4744-a932-0658087f49c3
 2011-09-18 17:52:00 +00:00
patacongo
9074172127 Fix I2C/FSMC conflict for STM32; Fix STM32 clock setup 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3942 42af7a65-404d-4744-a932-0658087f49c3
 2011-09-08 17:56:08 +00:00
patacongo
ab04444d75 Fix a error the the STM32 I2C timeout logic 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3940 42af7a65-404d-4744-a932-0658087f49c3
 2011-09-06 21:00:48 +00:00
patacongo
c78380d1c0 I2C tool no longer hangs on dev command 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3930 42af7a65-404d-4744-a932-0658087f49c3
 2011-08-30 19:48:47 +00:00
patacongo
74ae84aa22 First cut at I2C tool 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3927 42af7a65-404d-4744-a932-0658087f49c3
 2011-08-30 15:07:21 +00:00
patacongo
e1c666abbc More I2C tool logic 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3924 42af7a65-404d-4744-a932-0658087f49c3
 2011-08-29 23:06:54 +00:00
patacongo
1008ae7196 Add framework for I2C tools 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3923 42af7a65-404d-4744-a932-0658087f49c3
 2011-08-29 20:12:03 +00:00