IoTGateway/BSP/Android/Gettingstarted/How to use UART - Revision history

Yuming.lin at 06:39, 6 February 2017

2017-02-06T06:39:34Z

Yuming.lin: link to document

2017-02-06T06:27:13Z

link to document

Yuming.lin at 06:23, 6 February 2017

2017-02-06T06:23:51Z

Yuming.lin at 03:27, 6 February 2017

2017-02-06T03:27:25Z

Yuming.lin at 08:52, 25 January 2017

2017-01-25T08:52:07Z

Yuming.lin at 08:32, 25 January 2017

2017-01-25T08:32:28Z

Yuming.lin at 08:19, 25 January 2017

2017-01-25T08:19:34Z

Yuming.lin at 08:18, 25 January 2017

2017-01-25T08:18:17Z

Yuming.lin at 07:35, 25 January 2017

2017-01-25T07:35:36Z

Yuming.lin: Created page with "1. Overview
2. Configuration 3. Boards 3.1 ROM3420 Borad 3.2 ROM7421 Borad"

2017-01-25T03:27:45Z

Created page with "1. Overview<br/>2. Configuration 3. Boards *3.1 ROM3420 Borad *3.2 ROM7421 Borad"

New page

1. Overview<br/>2. Configuration

3. Boards

*3.1 ROM3420 Borad
*3.2 ROM7421 Borad

← Older revision		Revision as of 06:39, 6 February 2017
Line 20:		Line 20:

	#echo test > /dev/ttymxc1		#echo test > /dev/ttymxc1
		+
		+	== <span style="font-size: medium;"><font color="#0066cc">Change COM mode</font></span> ==
		+
		+	The COM port need to change mode for user space (APK). your can add the chmod cammand in the android init.rc file in device/fsl/rom_3420_a1/.
		+
		+	ex: chmod 666 /dev/ttymxc*

	== <span style="font-size: medium;"><font color="#0066cc">RS-485</font></span> ==		== <span style="font-size: medium;"><font color="#0066cc">RS-485</font></span> ==

@@ Line 25: / Line 25: @@
 RS-485 uses half-duplex communication, which means that one medium is shared for transmitting and receiving data. Therefore the system needs to control the RS-485 transceiver's transmit mode. Usually the UART RTS signal is used to switch the transmitter on and off. Our modules provide the following support:
-Enable the RS-485 feature by either using ioctrl ''TIOCSRS485'' from user space as described in [[Enable_the_RS-485_feature_by_either_using_ioctrl_TIOCSRS485_from_user_space_as_described_in_RS-485_Kernel_Documentation.|<font color="#0066cc">RS-485 Kernel Documentation</font>]].
+Enable the RS-485 feature by either using ioctrl ''TIOCSRS485'' from user space as described in [https://github.com/ADVANTECH-Corp/linux-imx6/blob/imx_4.1.15_1.0.0_ga/Documentation/serial/serial-rs485.txt <font color="#0066cc">RS-485 Kernel Documentation</font>].
 = '''<span style="font-size: large;"><span style="color: rgb(0, 0, 205);">Boards</span></span>''' =
@@ Line 144: / Line 145: @@
 [[File:Imx6ABV1 serialport setup device 2.png|428x140px|Imx6ABV1 serialport setup device 2.png]]

@@ Line 4: / Line 4: @@
 = <br/><span style="color: rgb(0, 0, 205);"><span style="font-size: large;">'''Configuration'''</span></span> =
 <span lang="en"><font color="#000000">The utility stty can configure the serial speed. Then the com port can be accessed as a file:</font></span>
@@ Line 19: / Line 21: @@
   #echo test > /dev/ttymxc1
 = '''<span style="font-size: large;"><span style="color: rgb(0, 0, 205);">Boards</span></span>''' =
@@ Line 135: / Line 144: @@
 [[File:Imx6ABV1 serialport setup device 2.png|428x140px|Imx6ABV1 serialport setup device 2.png]]

← Older revision		Revision as of 03:27, 6 February 2017
Line 105:		Line 105:

	\|}		\|}
		+
		+
		+
		+
		+
		+
		+
		+
		+
		+
		+
		+
		+
		+	= <span style="color: rgb(0, 0, 205);"><span style="font-size: large;">'''Test Sample'''</span></span> =
		+
		+	1. Click "Serial Port"
		+
		+	[[File:Imx6ABV1 APP serialport.png\|972x187px\|Imx6ABV1 APP serialport.png]]
		+
		+	2. Click "Setup"
		+
		+	[[File:Imx6ABV1 serialport setup.png\|973x552px\|Imx6ABV1 serialport setup.png]]
		+
		+	3. Click "Device" , and choose the used device(e.g. ttymxc1)
		+
		+	[[File:Imx6ABV1 serialport setup device 1.png\|492x140px\|Imx6ABV1 serialport setup device 1.png]]
		+
		+	4. Click "Baud rate" , and choose the used baudrate(e.g. 115200)
		+
		+	[[File:Imx6ABV1 serialport setup device 2.png\|428x140px\|Imx6ABV1 serialport setup device 2.png]]

@@ Line 1: / Line 1: @@
-<span style="color: rgb(0, 0, 205);">'''<span style="font-size: large;">1. Overview</span>'''</span>
+= <span style="color: rgb(0, 0, 205);">'''<span style="font-size: large;">Overview</span>'''</span> =
-<span lang="en"><font color="#000000">The Android/Linux UART/serial port access from user is through the tty-devices. The tty-devices have different names depending on UART driver on different board.</font></span><br/><span style="color: rgb(0, 0, 205);"><span style="font-size: large;">'''2. Configuration'''</span></span>
+<span lang="en"><font color="#000000">The Android/Linux UART/serial port access from user is through the tty-devices. The tty-devices have different names depending on UART driver on different board.</font></span>
 <span lang="en"><font color="#000000">The utility stty can configure the serial speed. Then the com port can be accessed as a file:</font></span>
@@ Line 17: / Line 19: @@
   #echo test > /dev/ttymxc1
-'''<span style="font-size: large;"><span style="color: rgb(0, 0, 205);">3. Boards</span></span>'''
+= '''<span style="font-size: large;"><span style="color: rgb(0, 0, 205);">Boards</span></span>''' =
-.1 ROM3420 Borad
+== ROM3420 Borad ==
 {| style="width: 500px;" cellpadding="1" cellspacing="1" border="1" align="left"
@@ Line 36: / Line 38: @@
+|
-No
+Yes
 |-
@@ Line 45: / Line 47: @@
+|
-No
+Yes
 |-
@@ Line 54: / Line 56: @@
+|
-No
+Yes
 |}
@@ Line 72: / Line 74: @@
 &nbsp;
-[[File:ROM3420 COM.png|252x213px]]
+[[File:ROM3420 COM.png|252x213px|ROM3420 COM.png]]
-.2 ROM7421 Borad
+== ROM7421 Borad ==
 {| style="width: 500px;" cellpadding="1" cellspacing="1" border="1" align="left"
@@ Line 91: / Line 93: @@
+|
-Yes
+No
 |-
@@ Line 100: / Line 102: @@
+|
-Yes
+No
 |}

@@ Line 3: / Line 3: @@
 <span lang="en"><font color="#000000">The Android/Linux UART/serial port access from user is through the tty-devices. The tty-devices have different names depending on UART driver on different board.</font></span><br/><span style="color: rgb(0, 0, 205);"><span style="font-size: large;">'''2. Configuration'''</span></span>
-<span lang="en"><font color="#000000">The utility stty can configure the serial speed. Then the com port can be accessed as a file:</font></span> Check baudrate
+<span lang="en"><font color="#000000">The utility stty can configure the serial speed. Then the com port can be accessed as a file:</font></span>
   # stty -F /dev/ttymxc1 115200

@@ Line 1: / Line 1: @@
-. Overview
+<span style="color: rgb(0, 0, 205);">'''<span style="font-size: large;">1. Overview</span>'''</span>
-<span lang="en" style="font-family: &quot;新細明體","serif"; font-size: 12pt; mso-bidi-font-family: 新細明體; mso-font-kerning: 0pt; mso-ansi-language: en; mso-fareast-language: zh-tw; mso-bidi-language: ar-sa;"><font color="#000000">The Android/Linux UART/serial port access from user is through the tty-devices. The tty-devices have different names depending on UART driver on different board.</font></span><br/>2. Configuration
+<span lang="en"><font color="#000000">The Android/Linux UART/serial port access from user is through the tty-devices. The tty-devices have different names depending on UART driver on different board.</font></span><br/><span style="color: rgb(0, 0, 205);"><span style="font-size: large;">'''2. Configuration'''</span></span>
 <span lang="en"><font color="#000000">The utility stty can configure the serial speed. Then the com port can be accessed as a file:</font></span> Check baudrate
@@ Line 15: / Line 15: @@
   #echo test > /dev/ttymxc1
-. Boards
+'''<span style="font-size: large;"><span style="color: rgb(0, 0, 205);">3. Boards</span></span>'''
-*3.1 ROM3420 Borad
+.1 ROM3420 Borad
-{| style="width: 100.54%;" cellpadding="0" cellspacing="0" border="0" width="100%"
+{| style="width: 500px;" cellpadding="1" cellspacing="1" border="1" align="left"
 |-
-! style="width: 18.32%;" |
+! scope="col" | '''COM Name'''
-'''COM Name'''
+! scope="col" | '''NXP/Freescale Name'''
-! style="width: 25.82%;" |
-'''NXP/Freescale Name'''
+No
-! style="width: 27.92%;" |
+|-
-'''Device'''
+| COM1
-! style="width: 27.92%;" |
-'''RS485 support'''
+No
 |-
-| style="width: 18.32%;" |
+| COM2
-COM0
+| UART5
-| style="width: 25.82%;" |
-UART2
+No
-| style="width: 27.92%;" |
+|}
-! style="width: 25.82%;" |
+&nbsp;
-! style="width: 27.92%;" |
+.2 ROM7421 Borad
-! style="width: 27.92%;" |
+{| style="width: 500px;" cellpadding="1" cellspacing="1" border="1" align="left"
 '''RS485 support'''
 |-
-| style="width: 18.32%;" |
+| COM0
-COM0
+| UART2
-−
+|
 /dev/ttymxc1
-| style="width: 27.92%;" |
-No
+Yes
 |-
-| style="width: 18.32%;" |
+| COM1
-COM1
+| UART4
-−
+|
 /dev/ttymxc3
-| style="width: 27.92%;" |
-No
+Yes
 |}