How to convert HX2VL to HX3

[GrCa_1363456]

How can I replace an HX2VL, CY7C65632-28LTXC, with a HX3, CYUSB2304-68LTXI?

Is it possible to set PID or Maximum Power in ROM on HX3?

Configuration of the HX2VL is default, no EEPROM, which appears to match some defaults of HX3, but not all. VID and Port defaults appear to be the same. PID for HX2VL = 6570h and for HX3 = 6503h. I don't see Maximum Power report option in HX3. Maximum Power default is 100 (32h) in HX2VL.

Any help, words of wisdom or lessons learned on the effort to change from HX2VL to HX3 would be appreciated.

I'd prefer to NOT add a configuration EEPROM.

Greg

[MallikaK_22 · Accepted solution]

Hi Greg,

The default values for HX3 stored in ROM cannot be altered.

For changing the configurations, you need an EEPROM which can be done using the Blaster Plus.

Regards,

Mallika

[GrCa_1363456]

Mallika, Is there a comprehensive list of default configuration stored in HX3 ROM?

Following is the closest I could find for CYUSB2304-68LTXI:

Parameter Default Value	Default Value
VID	04B4h
PID	6503h
Number of ports	4
Port 1	Removable
Port 2	Removable
Port 3	Removable
Port 4	Removable
Maximum Power	????

[MallikaK_22]

Hi Greg,

The default values are mentioned in Table 8 in the HX3 datasheet: https://www.cypress.com/file/141031/download

Regards,

Mallika

[GrCa_1363456]

Mallika,

I don't see the default setting for "Maximum Power"  in the HX3 datasheet. 

It's difficult to compare the configuration tables between various hub devices. Do they all contain the same paramters?

Greg

[MallikaK_22]

Hi Greg,

Yes, there is no option to configure power in HX3.

However, you may refer to Tables 11 & 12 in the HX3 datasheet regarding power consumption.

Regards,

Mallika