Serial ports usage on Linux - Revision history

FabienM: /* Generalities */

2018-07-26T07:58:10Z

Generalities

← Older revision		Revision as of 09:58, 26 July 2018
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	** on [[APF9328]], [[APF27]], [[APF51]] & [[OPOS6UL]]: ''/dev/ttySMXN'' (with kernels <= 2.6.29) or ''/dev/ttymxcN'' (with kernels > 2.6.29)		** on [[APF9328]], [[APF27]], [[APF51]] & [[OPOS6UL]]: ''/dev/ttySMXN'' (with kernels <= 2.6.29) or ''/dev/ttymxcN'' (with kernels > 2.6.29)
	** on [[APF28]]: ''/dev/ttySP[0-4]'' (general purpose serial ports) or ''/dev/ttyAMxx'' (debug serial ports)		** on [[APF28]]: ''/dev/ttySP[0-4]'' (general purpose serial ports) or ''/dev/ttyAMxx'' (debug serial ports)
	** on [[OPOS6UL]]: ''/dev/ttymxc[0,1,7]'' (general purpose serial ports)
	* ''/dev/ttyUSBN'' for USB <-> serial converters		* ''/dev/ttyUSBN'' for USB <-> serial converters
	* ''/dev/ttySnN'' for 16550 compatible FPGA's IP		* ''/dev/ttySnN'' for 16550 compatible FPGA's IP

2018-07-26T07:39:36Z

With terminal (miniterm.py)

← Older revision		Revision as of 09:39, 26 July 2018
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	--- Miniterm on /dev/ttymxc1 115200,8,N,1 ---		--- Miniterm on /dev/ttymxc1 115200,8,N,1 ---
	--- Quit: Ctrl+] \| Menu: Ctrl+T \| Help: Ctrl+T followed by Ctrl+H ---		--- Quit: Ctrl+] \| Menu: Ctrl+T \| Help: Ctrl+T followed by Ctrl+H ---
			Hello world !
	</pre>		</pre>

2018-07-26T07:39:11Z

With terminal (miniterm.py)

← Older revision		Revision as of 09:39, 26 July 2018
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	</pre>		</pre>

	On [[OPOS6UL_DEV]] if Rx/Tx are not in loop, nothing will be prompted on key input. To see something prompted the Rx/Tx must be plugged together with a jumper on [[OPOS6ULDev#Connectors \|RaspberryPi connector]].		On [[OPOS6UL_DEV]] if Rx/Tx are not in loop, nothing will be prompted on key input. To see something prompted the Rx/Tx must be plugged together with a jumper on [[OPOS6ULDev#Connectors \|RaspberryPi connector]] (pin 8 and 10).

	==Statistics==		==Statistics==

2018-07-26T07:37:46Z

Sending/Receiving data

@@ Line 46: / Line 46: @@
 ==Sending/Receiving data==
 * It is as simple as opening the device as a file and writing data to it:
 <pre class=apf>
@@ Line 54: / Line 56: @@
 # cat /dev/ttymxc0
 </pre>
 ==Statistics==

2018-07-26T07:31:13Z

Generalities

← Older revision		Revision as of 09:31, 26 July 2018
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	* i.MX processor internal ports:		* i.MX processor internal ports:
	** on [[APF9328]], [[APF27]], [[APF51]] & [[OPOS6UL]]: ''/dev/ttySMXN'' (with kernels <= 2.6.29) or ''/dev/ttymxcN'' (with kernels > 2.6.29)		** on [[APF9328]], [[APF27]], [[APF51]] & [[OPOS6UL]]: ''/dev/ttySMXN'' (with kernels <= 2.6.29) or ''/dev/ttymxcN'' (with kernels > 2.6.29)
	** on APF28: ''/dev/ttySP[0-4]'' (general purpose serial ports) or ''/dev/ttyAMxx'' (debug serial ports)		** on [[APF28]]: ''/dev/ttySP[0-4]'' (general purpose serial ports) or ''/dev/ttyAMxx'' (debug serial ports)
	** on [[OPOS6UL]]: ''/dev/ttymxc[0,1,7]'' (general purpose serial ports)		** on [[OPOS6UL]]: ''/dev/ttymxc[0,1,7]'' (general purpose serial ports)
	* ''/dev/ttyUSBN'' for USB <-> serial converters		* ''/dev/ttyUSBN'' for USB <-> serial converters

2018-07-26T07:31:02Z

Generalities

← Older revision		Revision as of 09:31, 26 July 2018
Line 7:		Line 7:
	** on [[APF9328]], [[APF27]], [[APF51]] & [[OPOS6UL]]: ''/dev/ttySMXN'' (with kernels <= 2.6.29) or ''/dev/ttymxcN'' (with kernels > 2.6.29)		** on [[APF9328]], [[APF27]], [[APF51]] & [[OPOS6UL]]: ''/dev/ttySMXN'' (with kernels <= 2.6.29) or ''/dev/ttymxcN'' (with kernels > 2.6.29)
	** on APF28: ''/dev/ttySP[0-4]'' (general purpose serial ports) or ''/dev/ttyAMxx'' (debug serial ports)		** on APF28: ''/dev/ttySP[0-4]'' (general purpose serial ports) or ''/dev/ttyAMxx'' (debug serial ports)
	** on OPOS6UL: ''/dev/ttymxc[0,1,7]'' (general purpose serial ports)		** on [[OPOS6UL]]: ''/dev/ttymxc[0,1,7]'' (general purpose serial ports)
	* ''/dev/ttyUSBN'' for USB <-> serial converters		* ''/dev/ttyUSBN'' for USB <-> serial converters
	* ''/dev/ttySnN'' for 16550 compatible FPGA's IP		* ''/dev/ttySnN'' for 16550 compatible FPGA's IP

2018-07-26T07:30:47Z

Generalities

← Older revision		Revision as of 09:30, 26 July 2018
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	** on [[APF9328]], [[APF27]], [[APF51]] & [[OPOS6UL]]: ''/dev/ttySMXN'' (with kernels <= 2.6.29) or ''/dev/ttymxcN'' (with kernels > 2.6.29)		** on [[APF9328]], [[APF27]], [[APF51]] & [[OPOS6UL]]: ''/dev/ttySMXN'' (with kernels <= 2.6.29) or ''/dev/ttymxcN'' (with kernels > 2.6.29)
	** on APF28: ''/dev/ttySP[0-4]'' (general purpose serial ports) or ''/dev/ttyAMxx'' (debug serial ports)		** on APF28: ''/dev/ttySP[0-4]'' (general purpose serial ports) or ''/dev/ttyAMxx'' (debug serial ports)
			** on OPOS6UL: ''/dev/ttymxc[0,1,7]'' (general purpose serial ports)
	* ''/dev/ttyUSBN'' for USB <-> serial converters		* ''/dev/ttyUSBN'' for USB <-> serial converters
	* ''/dev/ttySnN'' for 16550 compatible FPGA's IP		* ''/dev/ttySnN'' for 16550 compatible FPGA's IP

2018-07-26T07:26:50Z

Statistics

← Older revision		Revision as of 09:26, 26 July 2018
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	* To have some statistics on serial port usage:		* To have some statistics on serial port usage:
	<pre class=apf>		<pre class=apf>
	# cat /proc/tty/driver/<driver_name> (for example ttyAPP on APF28)		# cat /proc/tty/driver/<driver_name> (for example ttyAPP on APF28, IMX-uart on OPOS6UL)

	serinfo:1.0 driver revision:		serinfo:1.0 driver revision:

2017-12-01T10:32:07Z

← Older revision		Revision as of 12:32, 1 December 2017
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	<pre class=apf>		<pre class=apf>
	# cat /dev/ttymxc0		# cat /dev/ttymxc0
			</pre>

			==Statistics==
			* To have some statistics on serial port usage:
			<pre class=apf>
			# cat /proc/tty/driver/<driver_name> (for example ttyAPP on APF28)

			serinfo:1.0 driver revision:
			0: uart:8006a000.serial mmio:0x8006A000 irq:214 tx:0 rx:0 CTS
			1: uart:8006c000.serial mmio:0x8006C000 irq:215 tx:0 rx:0 CTS
			3: uart:80070000.serial mmio:0x80070000 irq:216 tx:875195 rx:4024187 CTS
			4: uart:80072000.serial mmio:0x80072000 irq:217 tx:0 rx:0 CTS
	</pre>		</pre>

	== Links ==		== Links ==

	* [http://tldp.org/HOWTO/Serial-HOWTO.html Serial ~~uart~~ manual in Linux]		* [http://tldp.org/HOWTO/Serial-HOWTO.html Serial UART manual in Linux]

	[[Category:Serial ports]]		[[Category:Serial ports]]

2017-07-20T20:48:13Z

Sending/Receiving data

← Older revision		Revision as of 22:48, 20 July 2017
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	==Sending/Receiving data==		==Sending/Receiving data==
	* It is simple as opening the device as a file and writing data to it:		* It is as simple as opening the device as a file and writing data to it:
	<pre class=apf>		<pre class=apf>
	# echo "HELLO" > /dev/~~ttySMX0~~		# echo "HELLO" > /dev/ttymxc0
	</pre>		</pre>
	* To receive data (ASCII in that case):		* To receive data (ASCII in that case):
	<pre class=apf>		<pre class=apf>
	# cat /dev/~~ttySMX0~~		# cat /dev/ttymxc0
	</pre>		</pre>