Сообщение от Maks_K

Simple Charger
Pinout :
• 1 + 5 volts @ 500 ma
• 2 Short to pin 3
• 3 Short to pin 2
• 4 200kohm pulldown
• 5 GND
The Short between pin2 and pin3 is detected by a 200kohm pullup resistor on pin3 / d+ and a voltage comparator comparing pin2 and pin3. It seems to be possible to switch this pullup resistor off by software.
Instead of having to do a short between pin 2 and 3, a pullup resistor between pin2 and pin1 (+5Vdc) can be used (50 or 100kOhm).
Fast Charger
Pinout :
• 1 + 5 volts @ 1,250 ma
• 2 Short to pin 3
• 3 short to pin 2
• 4 440kohm pulldown
• 5 GND

Сообщение от i

EMU
From OpenEZX

* 1 EMU (Enhanced Mini USB)
* 2 Normal USB device/accesory mode
* 3 UART mode
* 4 Simple Charger
* 5 Fast Charger
* 6 Just Power on the phone
* 7 Headset Mode
* 8 Factory Test & Flash


1. EMU (Enhanced Mini USB)

The A780 has a mini USB connector that has some alternate pinout / functions.

Normal USB device/accesory mode

Pinout :

* 1 +5 volts input used to charge the phones battery at max 500ma.
* 2 Data-
* 3 Data+
* 4 (NC/left open) voltage at adc aprox 2,4-2,8 volt (there seems to be an internal pullup resistor of unknown value)
* 5 GND

In this mode, the Data- and Data+ lines will be routed to a USB transceiver located in PCAP chip, which is connected to the AP (PXA270) via the USB2 single ended interface (GPIO pins 34,35,36,39, 40, and 53). There is a 1,5kohm pullup resistor between the D+ as required by the USB standard to signal a high speed device (12mbits). This resistor is switchable by the PCAP bit BUSCTRL_USB_PU (+3,3volt or high Z). There is a second switchable pullup resistor on the d+ line which is used for charger detection. This resistor seems to be switched off (high Z) when setting the PCAP bit BUSCTRL_VUSB_MSTR_EN. However this does not happen instantly but with some delay (about 5-10 sec). It doesn't happen every time I tried. About 1 in 10 times it didn't work. It apears as if the firmware of the Baseband Processor is scanning from time to time the PCAP bits and then switches the resistor accordingly. I speculate therefore this resistor is connected to a GPIO on the Baseband processor and thats why there is no code in motorolas kernel.

2. UART mode

Pinout :

* 1 NC
* 2 TXD
* 3 RXD
* 4 ???
* 5 GND

The routing of the analog switches is exactly the same as in USB client mode, but inside the PCAP chip, the USB transceiver is bypassed. TXD is bypassed to GPIO 39 of the AP (which is then TXD of FFUART) and RXD is bypassed to GPIO 53 (which is then RXD of FFUART). See drivers/misc/ezx-emu.c of the original kernel for code.

3. Simple Charger

Pinout :

* 1 + 5 volts @ 500 ma
* 2 Short to pin 3
* 3 Short to pin 2
* 4 200kohm pulldown
* 5 GND

The Short between pin2 and pin3 is detected by a 200kohm pullup resistor on pin3 / d+ and a voltage comparator comparing pin2 and pin3. It seems to be possible to switch this pullup resistor off by software.

Instead of having to do a short between pin 2 and 3, a pullup resistor between pin2 and pin1 (+5Vdc) can be used (50 or 100kOhm).

4. Fast Charger

Pinout :

* 1 + 5 volts @ 1,250 ma
* 2 Short to pin 3
* 3 short to pin 2
* 4 440kohm pulldown
* 5 GND


5.Just Power on the phone

Pinout :

* 1 + 5 volts
* 2 NC
* 3 NC
* 4 440kohm pulldown
* 5 GND

6. Headset Mode

Pinout :

* 1 The phone suppiles a voltage to the headset through this pin
* 2 Left Out for Stereo Playback or Mono Out for handsfree
* 3 Right Out for Stereo Playback or Mono In (mix for handsfree)
* 4 102Kohm pulldown
* 5 GND

Depending on what you do (play mp3 / calling) the phone will either switch to stereo mode or handsfree mode. The pins are either routed to the Stereo DAC of PCAP or to a Mono DAC and a Mono ACD in PCAP.

7. Factory Test & Flash

There apears to be a way to force the phone to power-on even when there is NO battery present by applying an unknown voltage on pin 4. It is apparently used during manufacturing of the phones and might therefore be detected somehow by the bootloader. The only difference to USB accesory mode is that the phone powers on even without battery, and that the voltage on pin4 is different. Nothing is known about voltage / resistor to be used. On the other hand this is not an interesting mode anyway.

Сообщение от Andre_de_Turantino

Пробовал!Но я хочу иметь одну зарядку на работе,другую дома,и еще одну в машине!!!!!!!!!!!!!!!!!!!Если кто знает где взять pinout USB порта,который в моторе стоит (там в отличии от компа 5 ног!!!!!!) подскажите где взять!!!!!Ссылку дайте!Буду благодарен!!!!!!!![/QU
спроси в компьютерных магазинах у них есть usb 4х пиновые и 5ти пиновые

Сообщение от digiman

И еще расскажите мне, что за pulldown и pullup, и как вообще корпус этого долбанного зарядного раскрывается..