Hello,
I am using FS6500 series SBC on safe mode. When I give signal from IO_O wake pin, my system can be awake but after 1-2 second automaticaly goes to down. Maybe go to LPOFF modes.
How can ı take diagnostic where ı am make wrong configuration or where is the mistake?
My configuration are listed below.
Select resistor is 24 k and connected to GND.
FS0B pin connected to MCU with pulled up by 10K to VSUP3
- There is ignition input on IO_O.
- VKAM did not connect to MCU.
- FCCU_F1 connected to MCU with pulled up by 5.1K to VDDIO.
- FCCU_F0 connected to MCU with pulled down by 10K to GND.
- SPI communication connected to MCU.
- RSTB connected to MCU with pulled up by 5.1K to VDDIO.
- I am using buck-boost configuration with external mosfet.
I am thinking the SBC can go to WAKE-UP phase on main state machine but after 1- 2second go to LPOFF mode a thing happened.
Maybe this issue about watchdog timer.. I don't know.
*Note : I can see the required all voltage level when ı give signal from IO_O in a period of 1-2 second.
Best regards,
Alican OZPAY
R&D Engineer
