[En-Nut-Discussion] 940kBaud instead of 1MBaud by Nut OS 4.2.1
harald.kipp at egnite.de
Wed Jan 10 10:21:32 CET 2007
martin.anrig at ch.trumpf.com schrieb:
> Based on the RS232d Sample on the AT91SAM7X-EK Hardware I build an Ethernet to Serial Gateway. For the first release I used Nut-OS 22.214.171.124rc and the baud rate of the serial interface was more or less exactly 1Mbaud.
> Now I switched to the final release 4.2.1 and the baud rate is now 941kBaud instead of 1MBaud. I have measured the baud rate with the oscilloscope.
I'm working on a software MP3 decoder, may have changed the SAM7X PLL
settings and accidently commited this change to the CVS. If that is
true, I'm sorry.
Use NutGetCpuClock() to verify the current setting. The relevant
initialization is available in arch/arm/init/crtat91sam7x256_rom.S.
More information about the En-Nut-Discussion