Re: How to run up CSR chip without eeprom with BLUEZ ?

["Sanja Kolundzija" <Sanja.Kolundzija@xxxxxxxxxxxxxxxxxx>]

Hi Raymond,

> If  I using -r in the bccmd:
>
> ~ # bccmd -t bcsp -d /dev/ttyS1 psload -r csr.psr
> Loading PSKEY_ANA_FREQ ... done
> Loading PSKEY_UART_BAUDRATE ... done
> Loading PSKEY_UART_SEQ_WINSIZE ... done
> Loading PSKEY_BDADDR ... done
> Loading PSKEY_PCM_CONFIG32 ... done
> Loading PSKEY_PCM_FORMAT ... done
> Loading PSKEY_HOSTIO_MAP_SCO_PCM ... done
> Loading PSKEY_HOSTIO_MAP_SCO_CODEC ... done
> Loading PSKEY_CODEC_PIO ... done
> Loading PSKEY_ANA_FTRIM ... done
> ~ #
> ~ # hciattach -s 921600 /dev/ttyS1 bcsp 921600
> BCSP initialization timed out

Which baud rate do you set in your .psr file? You should use the same
speed in hciattach command, otherwise chip will be initialized to one
speed, and hciattach will try to connect using another one.


> I try to use following cmd to see whether the cmd is write in to the
chip, 
> but :
>
> ~ # bccmd -t bcsp -d /dev/ttyS1 psget -s 0x0 0x1be
> UART Baud rate: 0x0000 (0)
> ~ #
> ~ # bccmd -t bcsp -d /dev/ttyS1 psset -s 0x0 0x1be 0x0ebf
> ~ #
> ~ # bccmd -t bcsp -d /dev/ttyS1 psget -s 0x0 0x1be
> UART Baud rate: 0x0000 (0)
>
> seems chip just reset it self between two bccmd with bcsp protocol,
and lost 
> everything write to it.

Yes, I had the same behaviour, and only if I use -r with first bccmd
things worked. Reading the fault code returned FAULT_HOSTIO_INVALID_ACK
(the chip received a BCSP ACK for a message it has not sent) - based on
this I conclude that repeating bccmd messes the chips state machine
during BCHS protocol initialization.

Regards,
Sanja



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