Hi Gil, Thanks for that response. Just before few minutes i tried that and i was surprised to know that even after changing the baudrate i'm getting 8.06uS pulse width.
which means even i'm trying hciattach /dev/ttymxc1 texas 9600 noflow but the UART packet is going out at baudrate of 115200(8.06uS). How can i make a change in this? Also how can i change settings of UART means how can i use different UART then what i'm using for BT? Where to make change for that? Other Observation: Is there any power up sequence i have to take care? Our Power up sequence says " BT_EN should go high for 10ms then make it low and time between BT_EN high and HCI_RTS should be 100 ms". How can i provide such small delays from U-boot? Thanks and Regards, Parth On Wed, Aug 31, 2011 at 7:27 PM, Gil Zhaiek <[email protected]> wrote: > One more thing - try a different baud rate (using a different bts > file). > Try 115200 bts - because you see that this works. > > Gil > > On Aug 30, 11:42 pm, parth shah <[email protected]> wrote: > > Hi Pavan, > > > > We are using imx515 platform from freescale. > > > > We have pulled up connected with BT_EN with 1.8V. and BT_EN is connected > to > > GPIO. > > > > We are making sure that before any BT activity BT_EN should go high. > > > > Is there any other reason? > > > > Thanks, > > Parth > > > > > > > > > > > > > > > > On Tue, Aug 30, 2011 at 7:31 PM, Pavan Savoy <[email protected]> > wrote: > > > On Tue, Aug 30, 2011 at 9:26 PM, parth shah <[email protected]> > > > wrote: > > > > Hello Friends, > > > > > > I'm using WL1271 WIFI/BT module. > > > > > > I'm getting below output while running hciattach /dev/ttymxc1 texas > > > 30000000 > > > > > > [ATH_INFO] (external/bluetooth/bluez/tools/hciattach.c) <init_uart>: > > > Serial > > > > port is opened > > > > [ATH_INFO] (external/bluetooth/bluez/tools/hciattach.c) <init_uart>: > Port > > > > settings is gotten > > > > [ATH_INFO] (external/bluetooth/bluez/tools/hciattach.c) <init_uart>: > Port > > > > settings is set > > > > [ATH_INFO] (external/bluetooth/bluez/tools/hciattach.c) <init_uart>: > > > Initial > > > > baud rate is set > > > > [ATH_INFO] (external/bluetooth/bluez/tools/hciattach.c) <init_uart>: > > > Break > > > > is sent > > > > Initialization timed out. > > > > > What platform is this ? > > > Have you powered the BT chip ? These chips tend to have a > > > BT_EN/NShutDown gpio which needs to be pulled up for it to be powered > > > on. > > > > > > I have Firmware loaded at /lib/firmware/TIInit.... and BT_EN is high > > > before > > > > running hciattach > > > > > > Any idea why does it happen? Thanks in advance. > > > > > > Thanks, > > > > Parth > > > > > > -- > > > > unsubscribe: [email protected] > > > > website:http://groups.google.com/group/android-kernel > > > > > -- > > > --Pavan Savoy > > > > > -- > > > unsubscribe: [email protected] > > > website:http://groups.google.com/group/android-kernel > > -- > unsubscribe: [email protected] > website: http://groups.google.com/group/android-kernel > -- unsubscribe: [email protected] website: http://groups.google.com/group/android-kernel
