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FX3 Battery Charging
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FX3 Battery Charging

MacrossF posted on 08 Aug 2011 6:38 PM PST
Senior Member
16 Forum Posts
Hi We would like to evaluate about battery charging of FX3. In our simple test, FX3 seems not to do the charger detection operation in default. Can you provide solution about that?


Re: FX3 Battery Charging

aasi posted on 09 Aug 2011 01:45 AM PST
Cypress Employee
1090 Forum Posts

Hi,

How are you testing this? What is your test environment?

Are  you using FX3 with no firmware or after downloading firmware?

Regards,

Anand



Re: FX3 Battery Charging

MacrossF posted on 10 Aug 2011 01:07 AM PST
Senior Member
16 Forum Posts
Hi, Thank you for your reply. > How are you testing this? What is your test environment? Test board is FX3 DVK in default. Test method is like "Battery Charging 1.2 Compliance Plan". > Are you using FX3 with no firmware or after downloading firmware? I tested boot loader only. If I use sample firmware then FX3 run charger detection? If no, I'd like to know how to enable charger detection. We can get result of charger detection by "Charger detect output pin = high". Is that correct? Regards,

Re: FX3 Battery Charging

aasi posted on 11 Aug 2011 12:01 AM PST
Cypress Employee
1090 Forum Posts

The boot mode "USB Boot" by default should support battery charging. Please confirm if you're in this mode.

Regards,

Anand



Re: FX3 Battery Charging

MacrossF posted on 11 Aug 2011 04:04 AM PST
Senior Member
16 Forum Posts
Hi, I'll try "USB boot mode". Thanks,

Re: FX3 Battery Charging

MacrossF posted on 23 Aug 2011 04:02 AM PST
Senior Member
16 Forum Posts
Hi, I tested "USB Boot mode". But FX3 doesn't work battery charger detection. My procedure is the following. 1. Power supply select for VBUS by jumper pin(J53). 2. PMODE select for USB boot by DIP switches(SW25[2:0]: OFF, ON, ON) 3. USB cable connect to CDP(Charging Downstream Port) host. Should I download the firmware? If there is any problem, please help me. Regards,

Re: FX3 Battery Charging

aasi posted on 29 Aug 2011 03:34 AM PST
Cypress Employee
1090 Forum Posts

Missed this response somehow. I'm checking on this, will get back to you once I have a proper response.

Regards,

Anand



Re: FX3 Battery Charging

MacrossF posted on 29 Aug 2011 05:50 PM PST
Senior Member
16 Forum Posts
Thans, I looking forward your update. Regards,




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