Differences

toh:gigaset:sx76x [2012/12/29 17:03] delboy		toh:gigaset:sx76x [2013/04/09 17:08] (current) delboy
Line 13:		Line 13:
	===== Hardware Highlights =====		===== Hardware Highlights =====
	^ CPU ^ Ram ^ Flash ^ Network ^ USB ^ Serial ^ UART ^		^ CPU ^ Ram ^ Flash ^ Network ^ USB ^ Serial ^ UART ^
-	| Lantiq Xway Danube @333Mhz Dual Core | 32MB | 8MB | 4 RJ45 ports | Yes | Yes | Yes |	+	| Lantiq Xway Danube @333Mhz Dual Core (second core is for voip dsp) | 32MB | 8MB | 4 RJ45 ports | Yes | Yes | Yes |
Line 107:		Line 107:
	| **Bootloader:** [[doc:techref:bootloader:uboot]] |		| **Bootloader:** [[doc:techref:bootloader:uboot]] |
	| **System-On-Chip:** Lantiq PSB 50702 E  v1.3 or (v1.4) (MIPS 24Kc) |		| **System-On-Chip:** Lantiq PSB 50702 E  v1.3 or (v1.4) (MIPS 24Kc) |
-	| **CPU/Speed** 333 Mhz Dual Core |	+	| **CPU/Speed** 333 Mhz (second core is for voip dsp)|
	| **Flash-Chip:** \\ [[http://www.spansion.com/Support/Datasheets/s29gl-a_00_a12_e.pdf|Spansion S29GL064A10TFIR4]] \\ [[http://www.spansion.com/Support/Datasheets/s29gl-n_01.pdf|Spansion S29GL064N90TFI04]] |		| **Flash-Chip:** \\ [[http://www.spansion.com/Support/Datasheets/s29gl-a_00_a12_e.pdf|Spansion S29GL064A10TFIR4]] \\ [[http://www.spansion.com/Support/Datasheets/s29gl-n_01.pdf|Spansion S29GL064N90TFI04]] |
	| **Flash size:** 8 MiB |		| **Flash size:** 8 MiB |
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	</code>		</code>
		+	==== USB POWER ====
		+	SX763 uses a DC/DC switching regulator for 5V USB power, and unfortunately the chip is disabled by OpenWRT and other unofficial firmware (as of april 2013).
		+	The chip that provides 5V for USB has enable pin (number 7 to be exact), and the original firmware pulls the enable pin from 0.3V to 3.3V about two seconds before the relay makes a click sound.
-	==== Source code ====	+	According to datasheet, enable pin can be unconnected if we want the chip to auto-start, and that is exactly what we want. Therefore, we just need to disconnect the pin number 7 and SX763 will have 5V at USB connector all the time.
-	There is a tarball with basic code at http://opensource.sagemcom.com/index.php?id=54	+
		+	Note: When sx76x support gets back to trunk, there will be usb power by default so this hack wont be needed.
-	===== External links =====	+	{{:media:sx763-5v-usb-hack-medium.jpg|}}
-	http://www.bcsaba.net/	+	A close-up:
		+
		+	{{:media:sx763-5v-usb-hack-closeup.jpg|}}
		+
		+	Another close-up is available at :[[http://pljusak.com/papuk/RSCN1314.JPG]]
		+
		+	The good sides of this hack are: 1) if you break the pin on the chip no harm is done, and 2) there are no side-effects in possible overloading the other 5V regulator that is used if you bring the 5V from another DC/DC regulator, as in hack that follows.
		+
		+	Previous version of 5V-USB hack follows:
		+	----
		+
		+	Here is example of added usb power (5.05V measured) over simple pin solder so devices can be recognized on boot.
		+	You can even use WIFI dongles as from Attitude Adjustment 12.09-RC1 it works just fine.
		+	USB Dongle tested and working: Edimax EW-7722UnD a/b/g/n - Tested in 40mhz HT mode. Max speed measured (TCP): 20mbit (dirty conditions).
		+	Over USB hub you could add few more which makes this even a very good base station.
		+
		+	On USB port - solder first pin from top.
		+
		+	{{:media:sx763_whole.jpg?300}}
		+	{{:media:sx763_usb5v_pin.jpg?300}}
		+	{{:media:sx763_5v_pin.jpg?300}}
		+
		+	More info can be found on:
		+	http://linux.jezgra.net/2013/02/sx763-hack/
		+
		+	Please note that side-effects of this power mod are unknown.
		+	(Probably there should be no 'ugly-usb-patch' added anymore, so it doesn't give power on already powered pin.)
		+
		+	==== Source code ====
		+	There is a tarball with basic code at http://opensource.sagemcom.com/index.php?id=54
	===== Tags =====		===== Tags =====
-	{{tag>fxo ADSL2plus}}	+	{{tag>fxo ADSL2plus usb}}

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toh/gigaset/sx76x.1356797021.txt.bz2 · Last modified: 2012/12/29 17:03 by delboy