From: Dave H. <dhy...@gm...> - 2006-04-05 13:46:07
|
Hi Al/Bruce, > I need two serial ports with RTS/CTS handshake in addition to Bluetooth = from > a basix 400-bt. > It looks like I can achieve this with an HWUART board as follows: > > 1. Switch Bluetooth to use the Bluetooth UART instead of the Hardware UA= RT > (ttyS1 instead of ttyS3). > Set GPIO42 to AF1_in and GPIO43 to AF2_out. > Set GPIO48 to AF1_out and GPIO49 to AF1_in. > The 4-wire HWUART will then be available on U$7. > > 2. Connect Y0_RTS from the Hirose to U$6 pin 6. > Connect Y0_CTS from the Hirose to U$6 pin 2. > Set GPIO35 to AF1_in and GPIO41 to AF2_out. > This will enable the handshake lines for the FFUART on U$6. > > Is there anything on the basix 400-bt that will prevent this from workin= g? > I asked this same question awhile back and it was not answered, did I mi= ss > the answer this time. There are a lot of questions surrounding the seria= l > ports posted, and it sure would be > nice to see a straightforward explanation somewhere. From previous discussions on the mailing list, I believe that this is possible. The BTUART can't deal with the same baud rates over bluetooth that HWUART can, which is why it was switched to use HWUART. And, of course, moving the Y0_RTS/Y0_CTS away from the USB would mean either a minor driver change or loss of USB capability. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |