From: Steven Saunderson
Sent: Saturday, 21 February 2015, 6:06
Subject: Re: [linux-sunxi] CubieTruck internal UARTs with 3.19 kernel
My bluetooth testing is to a mobile phone for wireless broadband. I haven't
tested any other bluetooth functions.
Thanks for confirming radio communicatio
On Saturday, February 21, 2015 at 10:50:42 PM UTC+11, Al Thomas wrote:
>
> The maximum UART speed is stated to be 4Mbps in the datasheet. Have you
> got as far as using the highest rate and if so when do you switch over to
> using it?
>
I tried increasing the bps to 1152000 but it didn't work.
From: Steven Saunderson
Sent: Sunday, 22 February 2015, 3:16
Subject: Re: [linux-sunxi] CubieTruck internal UARTs with 3.19 kernel for
Bluetooth
Due to a reply in another forum I've uploaded my files to
https://github.com/phelum/CT_Bluetooth and might get some feedback. If yo
On Monday, February 23, 2015 at 7:14:45 AM UTC+11, Al Thomas wrote:
>
> It looks as though modifying the Broadcom program allows you to use the
> ioctls on the Linux UART driver because it is written in C so it is easier
> for you to access the ioctl. Have you heard of or used stty ? I've just
On Monday, February 23, 2015 at 7:14:45 AM UTC+11, Al Thomas wrote:
>
> It looks as though modifying the Broadcom program allows you to use the
> ioctls on the Linux UART driver because it is written in C so it is easier
> for you to access the ioctl. Have you heard of or used stty ? I've just
From: Steven Saunderson
Sent: Monday, 23 February 2015, 8:43
Subject: Re: [linux-sunxi] CubieTruck internal UARTs with 3.19 kernel for
Bluetooth
I've checked stty. The -clocal option causes patchram to hang when opening the
serial port. The crtscts option doesn't help unf
On Tuesday, February 24, 2015 at 8:24:32 AM UTC+11, Al Thomas wrote:
>
> Your description of handshaking made me wonder if that was the problem.
> Are you aware there are two serial protocols available on the chip? H4 uses
> the control lines and H5 that seems to use SLIP. Page 30 of the BCM207
From: Steven Saunderson
Sent: Tuesday, 24 February 2015, 10:28
Subject: Re: [linux-sunxi] CubieTruck internal UARTs with 3.19 kernel for
Bluetooth
Today I've tested asserting and negating RTS at various times.
Host RTS must be asserted at the end of the reset pulse and for 30ms aft
>
> On Wednesday, February 25, 2015 at 12:51:13 AM UTC+11, Al Thomas wrote:
>
>
>
> Host RTS must be asserted at the end of the reset pulse and for 30ms after
> to get the device to assert its RTS (our CTS). Since I check for CTS
> before sending this causes the program to time out.
>
> The tim
From: Steven Saunderson
Sent: Wednesday, 25 February 2015, 6:30
Subject: Re: [linux-sunxi] CubieTruck internal UARTs with 3.19 kernel for
Bluetooth
I think the host UART driver ( serial8250 ) should be dealing with the
handshaking. It is hopefully just a question of getting it
Until yesterday I used sun7i-a20-cubietruck.dtb generated from files
supplied with the Linux 3.19.0-rc6 kernel. With this .dtb the Bluetooth
UART is accessed via /dev/ttyS2. This is different from the 3.4 kernels
which provide access via /dev/ttyS1.
Now I've generated a new .dtb using the lat
I've just added a brcm_bt_reset program to my repository
https://github.com/phelum/CT_Bluetooth
. This resets the BCM20710 and leaves it in UART-enabled mode as required
by the download program. So now the download program (should be generic)
doesn't have to call an initialise script (CubieTr
From: Steven Saunderson
Sent: Thursday, 26 February 2015, 9:50
Subject: Re: [linux-sunxi] CubieTruck internal UARTs with 3.19 kernel for
Bluetooth
I've just added a brcm_bt_reset program to my repository
https://github.com/phelum/CT_Bluetooth . This resets the BCM20710 and leave
On Friday, February 27, 2015 at 1:36:43 AM UTC+11, Al Thomas wrote:
>
> Why do you use mmap to access the GPIOs and not write to the sysfs files
> from within the C program?
>
> mmap seems good because it avoids the indirection (and interface
differences across kernel releases) imposed by the d
From: Steven Saunderson
Sent: Thursday, 26 February 2015, 21:57
Subject: Re: [linux-sunxi] CubieTruck internal UARTs with 3.19 kernel for
Bluetooth
On Friday, February 27, 2015 at 1:36:43 AM UTC+11, Al Thomas wrote:
Why do you use mmap to access the GPIOs and not write to the sysfs files
On Friday, February 27, 2015 at 12:19:48 PM UTC+11, Al Thomas wrote:
>
>
> Do the 3.4 kernel and standard Broadcom program work together without the
> restart program? If so then maybe the restart program should just be for
> new kernels with DTS support.
>
>
I've had trouble with the BT fi
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