[Paparazzi-devel] using USB virtual serial for telemetry

[Martin Mueller]

Hi,

there is a new feature that allows to use the USB port of the autopilot 
for telemetry transfer (instead of the serial link).

http://paparazzi.enac.fr/wiki/DevGuide/USB-Serial

It was needed to change the peripheral clock (PCLK) in the LPC2148 to 
make this possible. Changing this "master" clock affects almost all 
hardware modules on the chip. The drivers (uart, spi, adc, ...) need to 
be aware of that changed clock. They have been adapted and are now able 
to run with different PCLKs.

Please check with caution before you fly with the new cvs code next 
time. If you want to review the code, please take a look at these 
registers/functions:

S0SPCCR
 pt_ant_sensors.c

SSPCPSR
 baro_scp.c
 arm7/ADS8344.c
 arm7/booz_test_scp.c
 arm7/spi_hw.c
 coaxial/tl_imu.c
 coaxial/tl_test_mm_main.c

T0PR
 arm7/sys_time_hw.h

T1PR
 arm7/modem_hw.h

AD0CR
AD1CR
 arm7/adc_hw.c
 vor/lpc_vor_convertions.c

U0DLL
U0DLM
U1DLL
U1DLM
 (uart_hw.c)
 (uart_hw.h)

PWMPR
 arm7/baro_MS5534A.c
 arm7/servos_4015_hw.h
 (arm7/servos_4015_hw.c)
 (arm7/servos_4015_hw_new.c)
 coaxial/tl_baro.c

I2C0SCLL
I2C0SCLH
I2C1SCLL
I2C1SCLH
 arm7/i2c_hw.c

Some of the code is not needed for fixed wing or not used any more.

Thanks!
Martin