doc: update the doc of imu_mpu9250 and graphic_u8glib

update the doc of imu_mpu9250 and graphic_u8glib

Signed-off-by: Wayne Ren <[email protected]>

Author: Wayne Ren

doc/documents/example/example.rst

@@ -32,6 +32,7 @@ JTAG, or the .bin  files through SD card by secondary bootloader.
    example/baremetal/bootloader                             :ref:`example_bootloader`
    example/baremetal/cxx                                    :ref:`example_cxx`
    example/baremetal/dma_spiflash                           :ref:`example_dma_spiflash`
+   example/baremetal/imu_mpu9250                            :ref:`example_mpu9250_test`
    example/baremetal/graphic_u8glib                         :ref:`example_graphic_u8glib`
    example/baremetal/openthread/cli                         :ref:`example_openthread_cli`
    example/baremetal/openthread/ncp                         :ref:`example_openthread_ncp`

example/baremetal/baremetal_based_example.rst

@@ -8,4 +8,3 @@ Baremetal examples
     :glob:
 
     */*
-    test/*/*/*

example/baremetal/graphic_u8glib/README.rst

@@ -2,3 +2,40 @@
 
 Graphic u8glib Example
 ######################
+
+
+Overview
+********
+
+This example is a graphic test based on OLED ssd1306 and U8glib.
+
+
+Detailed Description
+====================
+ * Extra Required Tools
+    NO
+
+ * Extra Required Peripherals
+    PMOD OLED based on SSD1306 128x64 monochrome
+
+ * Design Concept
+    It demonstrates how to use U8glib functions of drawing box, line and ASCII characters. Dynamic graphics are shown in SSD1306.
+    And display width & height information is shown in Tera Term
+
+ * Usage Manual
+    Outputs pitch, roll, yaw get from MPU9250 DMP to the console.
+
+ * Extra Comments
+    NO
+
+Buidling and Running
+********************
+
+The commands to run this example are as follows:
+
+.. code-block:: console
+
+    $ cd <embarc_root>/example/baremetal/graphic_u8glib
+    $ make BOARD=emsk BD_VER=22 CUR_CORE=arcem7d TOOLCHAIN=gnu run
+
+.. note:: As IoTDK's pmod inteface don't support I2C, please use the i2c pins of arduino interface 	mikro bus to connect pmod OLED.

example/baremetal/imu_mpu9250/README.rst

@@ -33,7 +33,7 @@ to run this example are as follows:
 
 .. code-block:: console
 
-    $ cd <embarc_root>/example/test/mpu9250_test
+    $ cd <embarc_root>/example/baremetal/imu_9250
     $ make BOARD=iotdk TOOLCHAIN=gnu run
 
 .. note:: Make sure you have selected the correct configuration of iotdk

example/baremetal/imu_mpu9250/makefile

@@ -1,5 +1,5 @@
 # Application name
-APPL ?= mpu9250_test
+APPL ?= imu_mpu9250
 BOARD = iotdk
 EXT_DEV_LIST += sensor/imu/mpu9250
 #