USB: Difference between revisions
 (→Charger:  Adding hardware links)  | 
				 (→Micro-USB3 OTG Port:  Hardware - Removed TPS22963CYZPT digital switch as its no longer used)  | 
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* [https://www.mouser.co.uk/ProductDetail/Texas-Instruments/TPD4EUSB30DQAR?qs=Ze4%2FuFuz19JpY4uqYOLMbQ%3D%3D TPD4EUSB30] - 4-Channel Transient Voltage and ESD Protection for Super-SpeedUSB 3.0 Interface  | * [https://www.mouser.co.uk/ProductDetail/Texas-Instruments/TPD4EUSB30DQAR?qs=Ze4%2FuFuz19JpY4uqYOLMbQ%3D%3D TPD4EUSB30] - 4-Channel Transient Voltage and ESD Protection for Super-SpeedUSB 3.0 Interface  | ||
* [https://www.mouser.co.uk/ProductDetail/Nexperia/IP4220CZ6125?qs=me8TqzrmIYWNWIOv4%2FpxMw%3D%3D IP4220CZ6,125] - Dual USB 2.0 integrated ESD protection  | * [https://www.mouser.co.uk/ProductDetail/Nexperia/IP4220CZ6125?qs=me8TqzrmIYWNWIOv4%2FpxMw%3D%3D IP4220CZ6,125] - Dual USB 2.0 integrated ESD protection  | ||
* [https://www.mouser.co.uk/ProductDetail/Murata-Electronics/DLP11TB800UL2L?qs=%2Fha2pyFaduivauEJsdu3mthN%2F2orsRh1J3oM3dYXTIK42V4EBuEtOw%3D%3D DLP11TB800UL2L] - 2 x Common Mode Chokes / Filters 0504 80ohm EMI Suppression   | * [https://www.mouser.co.uk/ProductDetail/Murata-Electronics/DLP11TB800UL2L?qs=%2Fha2pyFaduivauEJsdu3mthN%2F2orsRh1J3oM3dYXTIK42V4EBuEtOw%3D%3D DLP11TB800UL2L] - 2 x Common Mode Chokes / Filters 0504 80ohm EMI Suppression Filter  | ||
* [https://www.mouser.co.uk/ProductDetail/TDK/ACM2012-900-2P-T001?qs=%2Fha2pyFadug3t8tNY0QxAI5VFTC0YpAxfiy9XGGS8ZWghpnNNX9yBOzLmauQpYX3 ACM2012-900-2P-T001] - Common Mode Choke / Filter 50V 200mA 680ohms AEC-Q200  | * [https://www.mouser.co.uk/ProductDetail/TDK/ACM2012-900-2P-T001?qs=%2Fha2pyFadug3t8tNY0QxAI5VFTC0YpAxfiy9XGGS8ZWghpnNNX9yBOzLmauQpYX3 ACM2012-900-2P-T001] - Common Mode Choke / Filter 50V 200mA 680ohms AEC-Q200  | ||
* [https://www.mouser.co.uk/ProductDetail/ON-Semiconductor-Fairchild/FPF3040UCX?qs=%2Fha2pyFadugFS4y9FPVZuPGu3r1FS%252B6Gghb2pjWrbNdQOmVgbq%2FncA%3D%3D FPF3040UCX] - 18V-RatedDual Input Single OutputPower-Source-Selector Switch  | * [https://www.mouser.co.uk/ProductDetail/ON-Semiconductor-Fairchild/FPF3040UCX?qs=%2Fha2pyFadugFS4y9FPVZuPGu3r1FS%252B6Gghb2pjWrbNdQOmVgbq%2FncA%3D%3D FPF3040UCX] - 18V-RatedDual Input Single OutputPower-Source-Selector Switch  | ||
** When "EN-OTG" is enabled, connects "VBUS" power line to "VBUS-EXT" on the USB 3.0 OTG port.  | ** When "EN-OTG" is enabled, connects "VBUS" power line to "VBUS-EXT" on the USB 3.0 OTG port.  | ||
===Serial-via-micro-USB2 Port===  | ===Serial-via-micro-USB2 Port===  | ||
Revision as of 20:33, 2 April 2021
The Pyra has four USB ports, as detailed below.
For our purposes:
- "USB2" means "capable of Low, Full and High-speed"
 - "USB3" means "capable of low, full, high and super-speed"
 - "OTG" means capable of operating in either host- or slave-mode.
 
Full-size USB2 Port
This is a straightforward USB port as found on many desktop PCs. I can be used for keyboards, mice, USB memory sticks, network adaptors and many other things (subject to driver support)
Hardware:
- Assmann AU-Y1006-2-R - USB TYPE-A USB 2.0 Receptacle Connector 4 Position Surface Mount, Right Angle
 - IP4220CZ6F - Dual USB 2.0 integrated ESD protection
 
Full-size USB2 Port with eSATA
This can be used as a simple USB2 port as above. Although this uses a blue Connector designed for USB3 Ports, it is not capable of USB3 (with the current CPU-Board). The additional pins are used for (e-)SATA Lanes for to an Adapter.
Hardware:
- Molex 48393-0003 - USB 3.0 Female Type A Connector
- USB 2.0 data pins connect to "HOST1-D" pins of the CPU module
 - USB 3.0 data pins connect to "SATA-RX" and "SATA-TX" pins of the CPU module
 
 - TPD4EUSB30 - 4-Channel Transient Voltage and ESD Protection for Super-SpeedUSB 3.0 Interface used on eSATA lines
 
See Storage for more details.
Micro-USB3 OTG Port
This can be used much like the full-size USB2 ports, but at higher speeds and with the obvious requirement for a passive adaptor when using most peripherals. It can also be used to charge the Pyra (either from another computer, or a mains adaptor) and to operate as a USB slave. The Pandora has software allowing it to operate as a USB mouse, joystick, keyboard or SD-card reader in slave mode. It is expected that similar software will be available for the Pyra.
Hardware:
- BossConn USB3-MICABF-CO02 - USB 3.0 Micro AB Female Connector
 - TPD4EUSB30 - 4-Channel Transient Voltage and ESD Protection for Super-SpeedUSB 3.0 Interface
 - IP4220CZ6,125 - Dual USB 2.0 integrated ESD protection
 - DLP11TB800UL2L - 2 x Common Mode Chokes / Filters 0504 80ohm EMI Suppression Filter
 - ACM2012-900-2P-T001 - Common Mode Choke / Filter 50V 200mA 680ohms AEC-Q200
 - FPF3040UCX - 18V-RatedDual Input Single OutputPower-Source-Selector Switch
- When "EN-OTG" is enabled, connects "VBUS" power line to "VBUS-EXT" on the USB 3.0 OTG port.
 
 
Serial-via-micro-USB2 Port
This is not a general-purpose USB port (as a result of limitations of the SOC) but can be used in two ways:
- Charging the Pyra while the primary microUSB3 port is in host mode.
 - Monitoring the Pyra using another computer (Serial output from the Pyra's processor, via a built-in Serial-USB translator, with the Pyra as USB slave)
 
Hardware:
- Molex 105017-001 - Micro-USB B Receptacle, Bottom Mount, Surface Mount, with Solder Tabs
 - FT232RQ - USB to serial UART interface
 
Charger
The Pyra will charge from a standard microUSB2 cable, connected to a standard 5V USB2+ charge brick. This can either be plugged into the USB2 section of the Micro-USB3 port, or the serial debug and charge Micro-USB2 port.
Hardware:
- BQ24297RGER - I2C (addr 0x6b) Controlled 3A Single Cell USB Charger With Narrow VDC PowerPath Management and Adjustable Voltage USB OTG
- Looks after "VBUS", "VBATT", "VSYS", and the USB "OTG" voltages.
 - Provides a "CHG-STAT" charging status used to make "LED-PWR" red.
 - Monitors the "BATTEMP" battery middle pin.
 - Sends "CHG-INT" 256-μs pulses to the CPU module to report charger device status and fault.
 
 - TLV70233DBVR - LDO Voltage Regulator, drops VSYS down to 3V3, but only when CPU Module supplies "1V8" to the LDO's enable input
 - INA231YFFT - High or Low-Side Measurement, Bidirectional Current and Power Monitor With 1.8-V I2C (addr 0x4x) interface
 - TPS22963CYZPT - 5.5V, 3A, 13mΩ On-Resistance Load Switch
- To control "VMODEM" from "EN-MODEM" signal
 
 
Sample of potentially official charger