boards/telosb: changed default baudrate to 9600

[haukepetersen]

supposedly fixes #4356

I don't have a board to test here, but I assume this should fix the issue of dropped characters on the telosb, as the main clock is currently configured with ~2MHz, and this is not enough to process UART interrupts at 115200baud...

[haukepetersen]

added the new baudrate also as pyterm parameter to the Makefile and tested this -> confirmed working:

2016-04-01 11:22:47,794 - INFO # RIOT MSP430 hardware initialization complete.
2016-04-01 11:22:47,795 - INFO # 
2016-04-01 11:22:47,892 - INFO # main(): This is RIOT! (Version: 2016.03-devel-1546-g5c6aa-prag-fix_telosb_baudrate)
2016-04-01 11:22:47,912 - INFO # Welcome to RIOT!
help
2016-04-01 11:22:51,992 - INFO # > help
2016-04-01 11:22:52,030 - INFO # Command              Description
2016-04-01 11:22:52,076 - INFO # ---------------------------------------
2016-04-01 11:22:52,118 - INFO # reboot               Reboot the node
2016-04-01 11:22:52,191 - INFO # ps                   Prints information about running threads.
2016-04-01 11:22:52,270 - INFO # saul                 interact with sensors and actuators using SAUL
ps
2016-04-01 11:22:54,280 - INFO # > ps
2016-04-01 11:22:54,369 - INFO #    pid | name                 | state    Q | pri | stack ( used) | location   
2016-04-01 11:22:54,453 - INFO #      1 | idle                 | pending  Q |  15 |    96 (   60) | 0x1124 
2016-04-01 11:22:54,537 - INFO #      2 | main                 | running  Q |   7 |   512 (  384) | 0x1184 
2016-04-01 11:22:54,610 - INFO #        | SUM                  |            |     |   608 (  444)
helphelphelp
2016-04-01 11:22:57,739 - INFO # > helphelphelp
2016-04-01 11:22:57,785 - INFO # shell: command not found: helphelphelp

[cgundogan]

Untested ACK. The changes look sane, but I have no hardware around atm.

[OlegHahm]

Just out of curiosity: shouldn't work 38400 baud work as well? At least it does for the bootloader.

[haukepetersen]

it probably would, but I decided to go with the safe value here. For the mid-term, we should re-work the clock initialization code for the msp430, let the telosb than run with something around 8MHz and then re-evaluate this value...