Differences

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--- en:xu4_hardware_hsi2c [2017/04/26 14:49]
charles.park
+++ en:xu4_hardware_hsi2c [2017/04/26 14:57] (current)
charles.park
@@ Line 1: / Line 1: @@
-====== HS-I2C ======
+====== HS-I2C (HighSpeed) ======
 This page introduces how you can I2C interface using Expansion Board.
 The Expansion Board have two I2C devices.\\
-You can use the devices via H/W I2C(I2C-A : HSI2C).
+You can use the devices via H/W I2C(I2C-A : HS-I2C).
 {{:en:xu4:xu4_hsi2c_with_expansion.png?700|}}
-**H/W I2C(I2C-A : HSI2C)**
+**H/W I2C(I2C-A : HS-I2C)**
 ^  Kernel 3.10.y\\ (node name)  ^  Kernel 4.9.y\\ (node name)  ^  Pin Number\\ (XU4-CON11)  ^  Net Name            ^  Export Number  ^  Description  ^
 |  /dev/i2c-1                   |  /dev/i2c-5                  |  4                         |  GPA2[2](I2C_5.SDA)  |  187            |  SDA          |
 |  :::                          |  :::                         |  6                         |  GPA2[3](I2C_5.SCL)  |  188            |  SCL          |
-** Using the HW-HSI2C(/dev/i2c-1) with Expansion Board. I2C Physical Address : 0x12CB0000 **
-** Must Read : Can't use SMBus Quick Write command on this bus.(Not support i2cdetect) **
+<note warning>I2C-A(HS-I2C) doesn't work with i2cdetect command on Kenrnel 3.10.y</note>
+  * Using the H/W I2C(I2C-A : HS-I2C) with Expansion Board. I2C Physical Address : 0x12CB0000
 **HW-HSI2C Test Code**
 <file c xu4_hsi2c.c>
 //------------------------------------------------------------------------------------------------------------
@@ Line 110: / Line 114: @@
 //
 //------------------------------------------------------------------------------------------------------------
-// const char *i2cHandleNode = "/dev/i2c-3";
+// kernel 4.9.y device node
+// const char *i2cHandleNode = "/dev/i2c-5";
+// kernel 3.10.y device node
 const char *i2cHandleNode = "/dev/i2c-1";
 static  int i2c_fd = -1;