- #1
Chandra214
- 48
- 0
Hi all,
set up:
USB devices in power mode have three types
a. high power mode ( 500mA)
b. Low power mode ( 200mA)
c. Self powered mode.
in one of our applications we are configuring the device as low power device at the descriptor level ( Software).
Once the host has the device information it will be able to monitor the 5V USB power line.
will the host controller play a role in controlling the amount of current to be sourced through VUSB?
or else will the host decide the type of device by sensing the amount of current consumed?
Thank you,
Chandra
set up:
USB devices in power mode have three types
a. high power mode ( 500mA)
b. Low power mode ( 200mA)
c. Self powered mode.
in one of our applications we are configuring the device as low power device at the descriptor level ( Software).
Once the host has the device information it will be able to monitor the 5V USB power line.
will the host controller play a role in controlling the amount of current to be sourced through VUSB?
or else will the host decide the type of device by sensing the amount of current consumed?
Thank you,
Chandra