How to drive WL1815mod by USB

joel.bertrand

Other Parts Discussed in Thread: WL1835MOD, WL1835, WL1837

Hello,

I'm trying to design an USB powered card which contains a WL1835mod and some others RF adapters. I only have one USB interface to connect this card to main CPU.

I have found a USB/SDIO bridge. Indeed the SMSC 2660 that can drive two SDIO ports with interrupts but this chip requires a customized firmware and Microchip does not provide information to write it.

I have found another USB to SDIO bridge, the VUB300. But this bridge is SDIO V2 only and only supports interrupts on DAT1 line. I'm not sure that WL1835 support this feature.

Thus, I'm don't know how I can interface WL1835mod to an USB interface. Do you know some USB to SDIO interface that directly run on a Linux host ?

Regards,

over 11 years ago

0 Joseph Gigi over 11 years ago

TI__Guru* 85400 points

Hi JB,

I am not aware of any USB to SDIO bridge...
But I will check if DAT1 can be used as the interrupt line, and get back to you...

Regards,
Gigi Joseph.

0 joel.bertrand over 11 years ago in reply to Joseph Gigi

Prodigy 20 points

Thanks a lot.

I have seen in wiki also, that WL1835 supports SPI mode but I haven't found more informations in official databook.

Regards,

0 Joseph Gigi over 11 years ago in reply to joel.bertrand

TI__Guru* 85400 points

Hi JB,

The linux driver support is available only for SDIO and the driver does not support using DAT1 as an interrupt line.

Regards,
Gigi Joseph.

0 Frank Earl5 over 9 years ago in reply to Joseph Gigi

Prodigy 110 points

So, does this mean nobody can use SDIO 2.X bridge devices? Would a 3.X one work a bit differently if there were driver support? I ask because that'd explain the screwy things my WL1837 did when I end-ran around the need for the OOB interrupt line.

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How to drive WL1815mod by USB