Add Serial Port - Revision history

Ramuk: /* Enable Write Mode (optional) */

Ramuk — Wed, 20 May 2009 18:53:59 GMT

Enable Write Mode (optional)

← Older revision		Revision as of 18:53, 20 May 2009
Line 36:		Line 36:

	===Enable Write Mode (optional)===		===Enable Write Mode (optional)===
-	This step is optional, but you might find that the serial port is more useful with bi-directional traffic. To enable write support across the serial port, remove the 10K ohm pullup resistor from R75 and solder this, or another 10K ohm pullup resistor (SMD package size is 0603 if you want to buy one), to R76.	+
		+	This step is optional, but you might find that the serial port is more useful with bi-directional traffic. To enable write support across the serial port either bridge R76 with a piece of wire or remove the 10K ohm pullup resistor from R75 and solder this, or another 10K ohm pullup resistor (SMD package size is 0603 if you want to buy one), to R76.
		+
		+	====Method 1 (easier)====
		+	*To enable write support across the serial port bridging r76 with a short piece of wire
		+	*IN SHORT, ALL THAT IS NECESSARY TO GET 2 WAY SERIAL COMMUNICATION ON THE KURO HG, HD, AND PPC LINKSTATIONS IS TO BRIDGE THE CONTACTS FOR THE SERIES RESISTOR AT R76.
		+	http://forum.buffalo.nas-central.org/viewtopic.php?f=42&t=9186
		+
		+	====Method 2 (original)====
		+	[[Image:Kuro-r76.jpg\|thumb\|Right\|200px\| To enable write support across the serial port, remove the 10K ohm pullup resistor from R75 and install it , or another 10K ohm pullup resistor, to R76. From http://www.larwe.com ]]
		+	*To enable write support across the serial port, remove the 10K ohm pullup resistor from R75 and install it , or another 10K ohm pullup resistor, to R76.
		+	[[Image:HG_J1_RXTX_enable.jpg\|thumb\|Right\|200px\| HG hardware requires different procedure. Instead of adding 10K ohm, a short wire connecting two pads perpendicular to R69 worked for me (I replaced R69 with 10K ohms, you can keep the original part.)]]
		+

	{{Tip\|To desolder an SMD resistor you can apply the following trick:		{{Tip\|To desolder an SMD resistor you can apply the following trick:

Ramuk: /* Level shifter */

Ramuk — Wed, 22 Aug 2007 01:23:08 GMT

Level shifter

← Older revision		Revision as of 01:23, 22 August 2007
Line 44:		Line 44:

	==Level shifter==		==Level shifter==
		+	[[Image:IMG_1392.jpg\|200px\|thumb\|right\| Here's a photo of the level shifter]] [[Image:IMG_1393.jpg\|200px\|thumb\|right\|a photo of the connector on the back of the Kuro]]
	An RS232/TTL level shifter needs to be added. You can buy one or as an alternative you can make the level shifter cable yourself:		An RS232/TTL level shifter needs to be added. You can buy one or as an alternative you can make the level shifter cable yourself:

	The Interface should be attached as close as possible to the board. The signals are very weak and wires as short as 2" (5 cm) have been reported to cause data loss across the serial port.		The Interface should be attached as close as possible to the board. The signals are very weak and wires as short as 2" (5 cm) have been reported to cause data loss across the serial port.

-	If you use the Compsys level shifter you should remove the 9 pin D connector from the shifter and solder the transmit and receive pins directly to the new header. This makes the shifter sit directly above the circuit board and makes the wires as short as possible. You will need to use 2 short (about 3/4", 2 cm) pieces of wire to connect the power and ground connections on the level shifter to the header. Next you should connect 6" (15 cm) pieces of wire to the transmit, receive and ground connections on the RS-232 side of the level shifter and route them to the 9 pin D connector which can be mounted on the rear of the Kurobox. ~~[[Image:IMG_1392.jpg\|200px\|thumb\|right\| Here's a photo of the level shifter]] [[Image:IMG_1393.jpg\|200px\|thumb\|right\|a photo of the connector on the back of the Kuro]]~~	+	If you use the Compsys level shifter you should remove the 9 pin D connector from the shifter and solder the transmit and receive pins directly to the new header. This makes the shifter sit directly above the circuit board and makes the wires as short as possible. You will need to use 2 short (about 3/4", 2 cm) pieces of wire to connect the power and ground connections on the level shifter to the header. Next you should connect 6" (15 cm) pieces of wire to the transmit, receive and ground connections on the RS-232 side of the level shifter and route them to the 9 pin D connector which can be mounted on the rear of the Kurobox.

	Note that the Compsys level shifter is designed to be used on a client device as opposed to a host device. As such it has the wrong gender 9 pin D connector. it also has the transmit and receive pins switched on the serial connector. This may not be an issue depending on what you plan to do with the serial port. If you plan to connect it to your computer for monitoring the console messages, you can just use a straight through cable. It will become an issue when you start connecting peripherals to it as the connector will not mate with your peripherals. You have two options in this case. the first is to buy a null modem connector to sit between the Kurobox and your peripherals. The second option is to replace the connector with the correct connector and switch the wires on pins 2 and 3.		Note that the Compsys level shifter is designed to be used on a client device as opposed to a host device. As such it has the wrong gender 9 pin D connector. it also has the transmit and receive pins switched on the serial connector. This may not be an issue depending on what you plan to do with the serial port. If you plan to connect it to your computer for monitoring the console messages, you can just use a straight through cable. It will become an issue when you start connecting peripherals to it as the connector will not mate with your peripherals. You have two options in this case. the first is to buy a null modem connector to sit between the Kurobox and your peripherals. The second option is to replace the connector with the correct connector and switch the wires on pins 2 and 3.

Ramuk: /* Level shifter */

Ramuk — Wed, 22 Aug 2007 01:22:09 GMT

Level shifter

← Older revision		Revision as of 01:22, 22 August 2007
Line 48:		Line 48:
	The Interface should be attached as close as possible to the board. The signals are very weak and wires as short as 2" (5 cm) have been reported to cause data loss across the serial port.		The Interface should be attached as close as possible to the board. The signals are very weak and wires as short as 2" (5 cm) have been reported to cause data loss across the serial port.

-	If you use the Compsys level shifter you should remove the 9 pin D connector from the shifter and solder the transmit and receive pins directly to the new header. This makes the shifter sit directly above the circuit board and makes the wires as short as possible. You will need to use 2 short (about 3/4", 2 cm) pieces of wire to connect the power and ground connections on the level shifter to the header. Next you should connect 6" (15 cm) pieces of wire to the transmit, receive and ground connections on the RS-232 side of the level shifter and route them to the 9 pin D connector which can be mounted on the rear of the Kurobox. [~~http~~:~~//www.kurobox.com/downloads/Hardware/~~IMG_1392.jpg Here's a photo of the level shifter] ~~and~~ [~~http~~:~~//www.kurobox.com/downloads/Hardware/~~IMG_1393.jpg a photo of the connector on the back of the Kuro.]	+	If you use the Compsys level shifter you should remove the 9 pin D connector from the shifter and solder the transmit and receive pins directly to the new header. This makes the shifter sit directly above the circuit board and makes the wires as short as possible. You will need to use 2 short (about 3/4", 2 cm) pieces of wire to connect the power and ground connections on the level shifter to the header. Next you should connect 6" (15 cm) pieces of wire to the transmit, receive and ground connections on the RS-232 side of the level shifter and route them to the 9 pin D connector which can be mounted on the rear of the Kurobox. [[Image:IMG_1392.jpg\|200px\|thumb\|right\| Here's a photo of the level shifter]] [[Image:IMG_1393.jpg\|200px\|thumb\|right\|a photo of the connector on the back of the Kuro]]

	Note that the Compsys level shifter is designed to be used on a client device as opposed to a host device. As such it has the wrong gender 9 pin D connector. it also has the transmit and receive pins switched on the serial connector. This may not be an issue depending on what you plan to do with the serial port. If you plan to connect it to your computer for monitoring the console messages, you can just use a straight through cable. It will become an issue when you start connecting peripherals to it as the connector will not mate with your peripherals. You have two options in this case. the first is to buy a null modem connector to sit between the Kurobox and your peripherals. The second option is to replace the connector with the correct connector and switch the wires on pins 2 and 3.		Note that the Compsys level shifter is designed to be used on a client device as opposed to a host device. As such it has the wrong gender 9 pin D connector. it also has the transmit and receive pins switched on the serial connector. This may not be an issue depending on what you plan to do with the serial port. If you plan to connect it to your computer for monitoring the console messages, you can just use a straight through cable. It will become an issue when you start connecting peripherals to it as the connector will not mate with your peripherals. You have two options in this case. the first is to buy a null modem connector to sit between the Kurobox and your peripherals. The second option is to replace the connector with the correct connector and switch the wires on pins 2 and 3.

Ramuk: /* Level shifter */

Ramuk — Sat, 18 Aug 2007 13:35:33 GMT

Level shifter

← Older revision		Revision as of 13:35, 18 August 2007
Line 50:		Line 50:
	If you use the Compsys level shifter you should remove the 9 pin D connector from the shifter and solder the transmit and receive pins directly to the new header. This makes the shifter sit directly above the circuit board and makes the wires as short as possible. You will need to use 2 short (about 3/4", 2 cm) pieces of wire to connect the power and ground connections on the level shifter to the header. Next you should connect 6" (15 cm) pieces of wire to the transmit, receive and ground connections on the RS-232 side of the level shifter and route them to the 9 pin D connector which can be mounted on the rear of the Kurobox. [http://www.kurobox.com/downloads/Hardware/IMG_1392.jpg Here's a photo of the level shifter] and [http://www.kurobox.com/downloads/Hardware/IMG_1393.jpg a photo of the connector on the back of the Kuro.]		If you use the Compsys level shifter you should remove the 9 pin D connector from the shifter and solder the transmit and receive pins directly to the new header. This makes the shifter sit directly above the circuit board and makes the wires as short as possible. You will need to use 2 short (about 3/4", 2 cm) pieces of wire to connect the power and ground connections on the level shifter to the header. Next you should connect 6" (15 cm) pieces of wire to the transmit, receive and ground connections on the RS-232 side of the level shifter and route them to the 9 pin D connector which can be mounted on the rear of the Kurobox. [http://www.kurobox.com/downloads/Hardware/IMG_1392.jpg Here's a photo of the level shifter] and [http://www.kurobox.com/downloads/Hardware/IMG_1393.jpg a photo of the connector on the back of the Kuro.]

-	Note that the Compsys level shifter is designed to be used on a client device as opposed to a host device. As such it has the wrong gender 9 pin D connector. it also has the transmit and receive pins switched on the serial connector. This may not be an issue depending on what you plan to do with the serial port. If you plan to connect it to your computer for monitoring the console messages, you can just use a straight through cable. It will become an issue when you start connecting ~~periferals~~ to it as the connector will not mate with your ~~periferals~~. You have two options in this case. the first is to buy a null modem connector to sit between the Kurobox and your ~~periferals~~. The second option is to replace the connector with the correct connector and switch the wires on pins 2 and 3.	+	Note that the Compsys level shifter is designed to be used on a client device as opposed to a host device. As such it has the wrong gender 9 pin D connector. it also has the transmit and receive pins switched on the serial connector. This may not be an issue depending on what you plan to do with the serial port. If you plan to connect it to your computer for monitoring the console messages, you can just use a straight through cable. It will become an issue when you start connecting peripherals to it as the connector will not mate with your peripherals. You have two options in this case. the first is to buy a null modem connector to sit between the Kurobox and your peripherals. The second option is to replace the connector with the correct connector and switch the wires on pins 2 and 3.

	Once you have the level shifter installed you should be able to see console messages via the serial port.		Once you have the level shifter installed you should be able to see console messages via the serial port.

Ramuk: /* Level shifter */

Ramuk — Sat, 18 Aug 2007 13:34:57 GMT

Level shifter

← Older revision		Revision as of 13:34, 18 August 2007
Line 44:		Line 44:

	==Level shifter==		==Level shifter==
-		+	An RS232/TTL level shifter needs to be added. You can buy one or as an alternative you can make the level shifter cable yourself:
-	~~The serial port signals from the processor are only 3.3V. For proper RS-232 5V signaling, an RS-232~~ level shifter needs to be added. ~~These are very common in PDA serial cables also, but~~ can ~~be purchased: See [[Serial_port#Buy_a_TTL.2FRS232_or_TTL.2FUSB_interface \| Serial port: Buy a TTL/RS232~~ or ~~TTL/USB interface]]~~	+
-		+
-	As an alternative you can make the level shifter cable yourself:	+
-	[http://www.type-g.com/index.php?plugin=attach&refer=LinkStation%2F%A5%B3%A5%F3%A5%BD%A1%BC%A5%EB%B0%FA%BD%D0%A4%B7&openfile=Circuit_ConsoleCable.pdf Circuit Console Cable.pdf] (courtesy Type-G). Components can be found at e.g. [http://www.digikey.com Digikey]	+
-		+
-	~~You can also etch a circuit board which makes building the interface and installing the interface really easy. Instructions are [[Building_a_Custom_Serial_Interface\|Here]].~~	+

	The Interface should be attached as close as possible to the board. The signals are very weak and wires as short as 2" (5 cm) have been reported to cause data loss across the serial port.		The Interface should be attached as close as possible to the board. The signals are very weak and wires as short as 2" (5 cm) have been reported to cause data loss across the serial port.
Line 59:		Line 53:

	Once you have the level shifter installed you should be able to see console messages via the serial port.		Once you have the level shifter installed you should be able to see console messages via the serial port.
		+
		+	{{Level Shifter}}

	==Serial Port Settings==		==Serial Port Settings==

Ramuk: /* Level shifter */

Ramuk — Sat, 18 Aug 2007 04:20:39 GMT

Level shifter

← Older revision		Revision as of 04:20, 18 August 2007
Line 45:		Line 45:
	==Level shifter==		==Level shifter==

-	The serial port signals from the processor are only 3.3V. For proper RS-232 5V signaling, an RS-232 level shifter needs to be added. These are very common in PDA serial cables also, but can be purchased ~~from~~ [~~http://www~~.~~compsys1~~.~~com~~/~~workbench Compsys Bench]~~ or ~~[http:~~/~~/www.digitalnemesis.com/products/rlc1/ Digital Nemesis~~]	+	The serial port signals from the processor are only 3.3V. For proper RS-232 5V signaling, an RS-232 level shifter needs to be added. These are very common in PDA serial cables also, but can be purchased: See [[Serial_port#Buy_a_TTL.2FRS232_or_TTL.2FUSB_interface \| Serial port: Buy a TTL/RS232 or TTL/USB interface]]
-	~~Item Name: A232DBH3v Max232 3.3v ver. adapter assembled w/hood kit~~	+
-	~~Item Number: A232DBH3v~~	+

	As an alternative you can make the level shifter cable yourself:		As an alternative you can make the level shifter cable yourself:

Ramuk at 00:13, 13 July 2007

Ramuk — Fri, 13 Jul 2007 00:13:47 GMT

← Older revision		Revision as of 00:13, 13 July 2007
Line 89:		Line 89:
	*http://www.kurobox.com		*http://www.kurobox.com
	*http://www.tldp.org		*http://www.tldp.org
-		+	{{Template:Articles\|Kurobox\|Hardware}}
-	~~[[Category:HowTo]]~~	+
-	~~[[Category~~:Hardware]]	+

Ramuk: 29 revision(s)

Ramuk — Thu, 12 Jul 2007 19:36:07 GMT

29 revision(s)

← Older revision

Revision as of 19:36, 12 July 2007

Rosco pc: Reverted edit of IqzPia, changed back to last version by Sylver

Rosco pc — Sat, 23 Jun 2007 02:30:28 GMT

Reverted edit of IqzPia, changed back to last version by Sylver

← Older revision		Revision as of 02:30, 23 June 2007
Line 8:		Line 8:
	== Attach the serial port ==		== Attach the serial port ==
	{\| style="background:Gainsboro;border-collapse:collapse;border:solid 1px black"		{\| style="background:Gainsboro;border-collapse:collapse;border:solid 1px black"
-	\| ''' J1 Pinout '''	+	\|+ ''' J1 Pinout '''
	\|-		\|-
	\| style="border:solid 1px white" \|'''Pin'''		\| style="border:solid 1px white" \|'''Pin'''
Line 50:		Line 50:

	As an alternative you can make the level shifter cable yourself:		As an alternative you can make the level shifter cable yourself:
-	[http://www.type-g.com/index.php?plugin=attach	+	[http://www.type-g.com/index.php?plugin=attach&refer=LinkStation%2F%A5%B3%A5%F3%A5%BD%A1%BC%A5%EB%B0%FA%BD%D0%A4%B7&openfile=Circuit_ConsoleCable.pdf Circuit Console Cable.pdf] (courtesy Type-G). Components can be found at e.g. [http://www.digikey.com Digikey]
		+
		+	You can also etch a circuit board which makes building the interface and installing the interface really easy. Instructions are [[Building_a_Custom_Serial_Interface\|Here]].
		+
		+	The Interface should be attached as close as possible to the board. The signals are very weak and wires as short as 2" (5 cm) have been reported to cause data loss across the serial port.
		+
		+	If you use the Compsys level shifter you should remove the 9 pin D connector from the shifter and solder the transmit and receive pins directly to the new header. This makes the shifter sit directly above the circuit board and makes the wires as short as possible. You will need to use 2 short (about 3/4", 2 cm) pieces of wire to connect the power and ground connections on the level shifter to the header. Next you should connect 6" (15 cm) pieces of wire to the transmit, receive and ground connections on the RS-232 side of the level shifter and route them to the 9 pin D connector which can be mounted on the rear of the Kurobox. [http://www.kurobox.com/downloads/Hardware/IMG_1392.jpg Here's a photo of the level shifter] and [http://www.kurobox.com/downloads/Hardware/IMG_1393.jpg a photo of the connector on the back of the Kuro.]
		+
		+	Note that the Compsys level shifter is designed to be used on a client device as opposed to a host device. As such it has the wrong gender 9 pin D connector. it also has the transmit and receive pins switched on the serial connector. This may not be an issue depending on what you plan to do with the serial port. If you plan to connect it to your computer for monitoring the console messages, you can just use a straight through cable. It will become an issue when you start connecting periferals to it as the connector will not mate with your periferals. You have two options in this case. the first is to buy a null modem connector to sit between the Kurobox and your periferals. The second option is to replace the connector with the correct connector and switch the wires on pins 2 and 3.
		+
		+	Once you have the level shifter installed you should be able to see console messages via the serial port.
		+
		+	==Serial Port Settings==
		+	{\| style="background:Gainsboro;border-collapse:collapse;border:solid 1px black"
		+	\|-
		+	\| style="width:80px;border:solid 1px white" \|'''Data'''
		+	\| style="border:solid 1px white" \|'''Settings '''
		+	\|-
		+	\| style="border:solid 1px white" \|Baudrate
		+	\| style="border:solid 1px white" \| 57600
		+	\|-
		+	\| style="border:solid 1px white" \|Data bits
		+	\| style="border:solid 1px white" \| 8
		+	\|-
		+	\| style="border:solid 1px white" \|Stop bits
		+	\| style="border:solid 1px white" \| 1
		+	\|-
		+	\| style="border:solid 1px white" \|Parity
		+	\| style="border:solid 1px white" \| None
		+	\|-
		+	\| style="border:solid 1px white" \|Flow Control
		+	\| style="border:solid 1px white" \| None
		+	\|}
		+
		+	==External Links==
		+	*http://www.larwe.com/technical/kuro_serial.html
		+	*http://www.type-g.com
		+	*http://www.kurobox.com
		+	*http://www.tldp.org
		+
		+	[[Category:HowTo]]
		+	[[Category:Hardware]]

IqzPia at 00:40, 23 June 2007

IqzPia — Sat, 23 Jun 2007 00:40:14 GMT

← Older revision		Revision as of 00:40, 23 June 2007
Line 8:		Line 8:
	== Attach the serial port ==		== Attach the serial port ==
	{\| style="background:Gainsboro;border-collapse:collapse;border:solid 1px black"		{\| style="background:Gainsboro;border-collapse:collapse;border:solid 1px black"
-	\|+ ''' J1 Pinout '''	+	\| ''' J1 Pinout '''
	\|-		\|-
	\| style="border:solid 1px white" \|'''Pin'''		\| style="border:solid 1px white" \|'''Pin'''
Line 50:		Line 50:

	As an alternative you can make the level shifter cable yourself:		As an alternative you can make the level shifter cable yourself:
-	[http://www.type-g.com/index.php?plugin=attach&refer=LinkStation%2F%A5%B3%A5%F3%A5%BD%A1%BC%A5%EB%B0%FA%BD%D0%A4%B7&openfile=Circuit_ConsoleCable.pdf Circuit Console Cable.pdf] (courtesy Type-G). Components can be found at e.g. [http://www.digikey.com Digikey]	+	[http://www.type-g.com/index.php?plugin=attach
-		+
-	~~You can also etch a circuit board which makes building the interface and installing the interface really easy. Instructions are [[Building_a_Custom_Serial_Interface\|Here]].~~	+
-		+
-	~~The Interface should be attached as close as possible to the board. The signals are very weak and wires as short as 2" (5 cm) have been reported to cause data loss across the serial port.~~	+
-		+
-	If you use the Compsys level shifter you should remove the 9 pin D connector from the shifter and solder the transmit and receive pins directly to the new header. This makes the shifter sit directly above the circuit board and makes the wires as short as possible. You will need to use 2 short (about 3/4", 2 cm) pieces of wire to connect the power and ground connections on the level shifter to the header. Next you should connect 6" (15 cm) pieces of wire to the transmit, receive and ground connections on the RS-232 side of the level shifter and route them to the 9 pin D connector which can be mounted on the rear of the Kurobox. [http://www.kurobox.com/downloads/Hardware/IMG_1392.jpg Here's a photo of the level shifter] and [http://www.kurobox.com/downloads/Hardware/IMG_1393.jpg a photo of the connector on the back of the Kuro.]	+
-		+
-	Note that the Compsys level shifter is designed to be used on a client device as opposed to a host device. As such it has the wrong gender 9 pin D connector. it also has the transmit and receive pins switched on the serial connector. This may not be an issue depending on what you plan to do with the serial port. If you plan to connect it to your computer for monitoring the console messages, you can just use a straight through cable. It will become an issue when you start connecting periferals to it as the connector will not mate with your periferals. You have two options in this case. the first is to buy a null modem connector to sit between the Kurobox and your periferals. The second option is to replace the connector with the correct connector and switch the wires on pins 2 and 3.	+
-		+
-	~~Once you have the level shifter installed you should be able to see console messages via the serial port.~~	+
-		+
-	~~==Serial Port Settings==~~	+
-	~~{\| style="background:Gainsboro;border-collapse:collapse;border:solid 1px black"~~	+
-	\|-	+
-	~~\| style="width:80px;border:solid 1px white" \|'''Data'''~~	+
-	~~\| style="border:solid 1px white" \|'''Settings '''~~	+
-	\|-	+
-	~~\| style="border:solid 1px white" \|Baudrate~~	+
-	~~\| style="border:solid 1px white" \| 57600~~	+
-	\|-	+
-	~~\| style="border:solid 1px white" \|Data bits~~	+
-	~~\| style="border:solid 1px white" \| 8~~	+
-	\|-	+
-	~~\| style="border:solid 1px white" \|Stop bits~~	+
-	~~\| style="border:solid 1px white" \| 1~~	+
-	\|-	+
-	~~\| style="border:solid 1px white" \|Parity~~	+
-	~~\| style="border:solid 1px white" \| None~~	+
-	\|-	+
-	~~\| style="border:solid 1px white" \|Flow Control~~	+
-	~~\| style="border:solid 1px white" \| None~~	+
-	\|}	+
-		+
-	~~==External Links==~~	+
-	*http://www.larwe.com/technical/kuro_serial.html	+
-	*http://www.type-g.com	+
-	*http://www.kurobox.com	+
-	*http://www.tldp.org	+
-		+
-	~~[[Category:HowTo]]~~	+
-	~~[[Category:Hardware]]~~	+