1
Discussion - Hardware / FT2232H remains in suspend mode & not able to get detected in Windows/Linux
« on: September 23, 2021, 11:19:30 AM »
Hi Team
I am using Ft2232h with my Custom design board. I observed that my pin no.60 (PWREN) is showing 3.3V & pin 36 (Suspend) is showing 0V, I assume that my FTDI is probably in suspend mode and hence not able to get detected on my Windows/Linux system.
I have attached snap from my Schematic. I have observed the following thing:
- Voltage wise its perfect getting 3.3V & 1.8V(VCORE)
- Have checked the assembly wise & its ok
- Also checked by Removing EEPROM
- Many times I have observed Device descriptor failed error message on Windows machine
Questioners:
- Whenever the power ON condition happens does FT2232H needs any particular sequence ?
- What will be the Crystal Frequency to be observed at Oscillator pin's 2 & 3?
Can you please guide through on what can be the solution to remove FT2232H out from Suspend mode ?
I am using Ft2232h with my Custom design board. I observed that my pin no.60 (PWREN) is showing 3.3V & pin 36 (Suspend) is showing 0V, I assume that my FTDI is probably in suspend mode and hence not able to get detected on my Windows/Linux system.
I have attached snap from my Schematic. I have observed the following thing:
- Voltage wise its perfect getting 3.3V & 1.8V(VCORE)
- Have checked the assembly wise & its ok
- Also checked by Removing EEPROM
- Many times I have observed Device descriptor failed error message on Windows machine
Questioners:
- Whenever the power ON condition happens does FT2232H needs any particular sequence ?
- What will be the Crystal Frequency to be observed at Oscillator pin's 2 & 3?
Can you please guide through on what can be the solution to remove FT2232H out from Suspend mode ?