Differences
This shows you the differences between two versions of the page.
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toh:gigaset:sx76x [2013/02/18 21:53] darkman |
toh:gigaset:sx76x [2013/04/09 17:08] (current) delboy |
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| ===== 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 | |
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| | **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 | | + | | **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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| ==== USB POWER ==== | ==== 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. | ||
| + | |||
| + | 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. | ||
| + | |||
| + | Note: When sx76x support gets back to trunk, there will be usb power by default so this hack wont be needed. | ||
| + | |||
| + | {{:media:sx763-5v-usb-hack-medium.jpg|}} | ||
| + | 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. | 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. | You can even use WIFI dongles as from Attitude Adjustment 12.09-RC1 it works just fine. | ||
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| Over USB hub you could add few more which makes this even a very good base station. | Over USB hub you could add few more which makes this even a very good base station. | ||
| - | {{:media:photo0113.jpg?300}} | + | 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: | More info can be found on: | ||
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| Please note that side-effects of this power mod are unknown. | 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 ==== | ==== Source code ==== | ||
toh/gigaset/sx76x.1361220828.txt.bz2 · Last modified: 2013/02/18 21:53 by darkman