From: Andreas.Karlsson@combitechsystems.com
To: ecos-discuss@sourceware.cygnus.com, aeb@arm.com
Subject: [ECOS] UART communication
Date: Tue, 05 Sep 2000 06:16:00 -0000 [thread overview]
Message-ID: <2253171AF143D21185A60000F8FA748B0229A94D@pluto.combitech.se> (raw)
Hi,
While receiving several bytes on the UART0 port on my AEB-board the
eCos-serialdriver says it only received 1 byte with the value of 0.
The incoming data looks very nice on an oscilloscope.
Just to be sure that I hadn't messed something up in my receiver-thread I
connected the TX and the RX pin and sent 4 bytes, the packet was received
just as it should.
I compiled the ser0 with a baud rate of 57600 since that's the only one I
can use. The other settings are 1 stop bit, no parity, wordsize=8 and
CTS/RTS enabled.
I noticed that the baudrate of 57600 wasn't supported in aeb_serial.h but
what happens when I make this selection in the configuration?
To be able to enable CTS/RTS I had to modify the select_baud-array in
aeb_serial.h. This because I should be able to set all fields in the
cyg_serial_info_t struct. I added the value of 26 on the bauddivisor for
57600, maybe this is the problem.
I really don't know what could be wrong so if anybody has a clue...
/Andreas
next reply other threads:[~2000-09-05 6:16 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-09-05 6:16 Andreas.Karlsson [this message]
2000-09-05 8:52 ` Dave Airlie
2000-09-05 9:03 ` Gary Thomas
2000-09-05 9:04 ` Jonathan Larmour
2000-09-05 22:32 Andreas.Karlsson
2000-09-06 10:01 ` Jonathan Larmour
2000-09-07 0:25 ` Jesper Skov
2000-09-06 10:21 Andreas.Karlsson
2000-09-06 10:31 ` Jonathan Larmour
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