Discussion:
PPC850 problem?
(too old to reply)
voipfqw
2004-10-16 16:14:55 UTC
Permalink
Hello,everyone
I have a problem about PPC850,I want to configure two serial
ports(RS232) on this CPU at the same time.Can I do like this way?

Best regards
Voipfqw
Andrew J. Brehm
2004-10-17 01:07:01 UTC
Permalink
Post by voipfqw
Hello,everyone
I have a problem about PPC850,I want to configure two serial
ports(RS232) on this CPU at the same time.Can I do like this way?
Best regards
Voipfqw
Who are you?
--
Andrew J. Brehm
Marx Brothers Fan
PowerPC User
Supporter of Chicken Pizza
voipfqw
2004-10-17 06:22:41 UTC
Permalink
Sorry I don't introduce myself.I am a R&D Engineer in China,and now I want
to study and apply PPC850.perhaps this problem is too simple,but I will be
honoured of your attention.
Post by Andrew J. Brehm
Post by voipfqw
Hello,everyone
I have a problem about PPC850,I want to configure two serial
ports(RS232) on this CPU at the same time.Can I do like this way?
Best regards
Voipfqw
Who are you?
--
Andrew J. Brehm
Marx Brothers Fan
PowerPC User
Supporter of Chicken Pizza
kirbalo
2004-10-17 16:53:25 UTC
Permalink
Post by voipfqw
Sorry I don't introduce myself.I am a R&D Engineer in China,and now I want
to study and apply PPC850.perhaps this problem is too simple,but I will be
honoured of your attention.
Post by Andrew J. Brehm
Post by voipfqw
Hello,everyone
I have a problem about PPC850,I want to configure two serial
ports(RS232) on this CPU at the same time.Can I do like this way?
Best regards
Voipfqw
Who are you?
--
Andrew J. Brehm
Marx Brothers Fan
PowerPC User
Supporter of Chicken Pizza
Since the MPC850(DE, SR, or DSL) derivatives have two SCC's and each can be
independently configured as UART's, you can do what you ask. The MPC850
(with no derivative) has only 1 SCC. You need to read chapters 21 and 22
of the MPC850UM/D users manual. You can download it from here:

http://www.freescale.com/files/product/doc/MPC850UM_D.pdf

There are links to all of the other app. notes and manuals here:

http://www.freescale.com/webapp/sps/site
prod_summary.jsp?code=MPC850&nodeId=01DFTQJk194204

You may want to look at the Freescale Chinese site also...
--
Kirbalo...

K7S5A Pro, Athlon XP 1600+
1 Gig DDR, 120 GB, nVidia GeForce 4 MX 440
SuSE Linux 9.0 Pro & XP Pro Dual Boot
Linux 2.4.21-243-athlon
11:44am up 2 days 15:08, 3 users, load average: 1.00, 1.00, 1.00
voipfqw
2004-10-18 00:39:59 UTC
Permalink
But in the MPC850 user manual, even in the chapter 22, it was "SCC2 OR SCC3
can be configure to a UART(RS232)", did it mean that I cannot configure two
serial UART(RS232) at the same time?
Post by kirbalo
Post by voipfqw
Sorry I don't introduce myself.I am a R&D Engineer in China,and now I want
to study and apply PPC850.perhaps this problem is too simple,but I will be
honoured of your attention.
Post by Andrew J. Brehm
Post by voipfqw
Hello,everyone
I have a problem about PPC850,I want to configure two serial
ports(RS232) on this CPU at the same time.Can I do like this way?
Best regards
Voipfqw
Who are you?
--
Andrew J. Brehm
Marx Brothers Fan
PowerPC User
Supporter of Chicken Pizza
Since the MPC850(DE, SR, or DSL) derivatives have two SCC's and each can be
independently configured as UART's, you can do what you ask. The MPC850
(with no derivative) has only 1 SCC. You need to read chapters 21 and 22
http://www.freescale.com/files/product/doc/MPC850UM_D.pdf
http://www.freescale.com/webapp/sps/site
prod_summary.jsp?code=MPC850&nodeId=01DFTQJk194204
You may want to look at the Freescale Chinese site also...
--
Kirbalo...
K7S5A Pro, Athlon XP 1600+
1 Gig DDR, 120 GB, nVidia GeForce 4 MX 440
SuSE Linux 9.0 Pro & XP Pro Dual Boot
Linux 2.4.21-243-athlon
11:44am up 2 days 15:08, 3 users, load average: 1.00, 1.00, 1.00
kirbalo
2004-10-18 20:02:20 UTC
Permalink
The SCC's are independent. You can configure both to be full UART's at the
same time, if you wish. You can configure the SMC to be a simple UART
also...



kirbalo
Post by voipfqw
But in the MPC850 user manual, even in the chapter 22, it was "SCC2 OR SCC3
can be configure to a UART(RS232)", did it mean that I cannot configure two
serial UART(RS232) at the same time?
Post by kirbalo
Post by voipfqw
Sorry I don't introduce myself.I am a R&D Engineer in China,and now I
want
Post by kirbalo
Post by voipfqw
to study and apply PPC850.perhaps this problem is too simple,but I will
be
Post by kirbalo
Post by voipfqw
honoured of your attention.
Post by Andrew J. Brehm
Post by voipfqw
Hello,everyone
I have a problem about PPC850,I want to configure two serial
ports(RS232) on this CPU at the same time.Can I do like this way?
Best regards
Voipfqw
Who are you?
--
Andrew J. Brehm
Marx Brothers Fan
PowerPC User
Supporter of Chicken Pizza
Since the MPC850(DE, SR, or DSL) derivatives have two SCC's and each can
be
Post by kirbalo
independently configured as UART's, you can do what you ask. The MPC850
(with no derivative) has only 1 SCC. You need to read chapters 21 and 22
http://www.freescale.com/files/product/doc/MPC850UM_D.pdf
http://www.freescale.com/webapp/sps/site
prod_summary.jsp?code=MPC850&nodeId=01DFTQJk194204
You may want to look at the Freescale Chinese site also...
--
Kirbalo...
K7S5A Pro, Athlon XP 1600+
1 Gig DDR, 120 GB, nVidia GeForce 4 MX 440
SuSE Linux 9.0 Pro & XP Pro Dual Boot
Linux 2.4.21-243-athlon
11:44am up 2 days 15:08, 3 users, load average: 1.00, 1.00, 1.00
voipfqw
2004-10-19 01:20:45 UTC
Permalink
Then you mean that I can configure SMC AND BOTH SCC's to be the same UART's
at the SAME time?It means that I can have three UART's at the same
time?Thank you very much.
Post by kirbalo
The SCC's are independent. You can configure both to be full UART's at the
same time, if you wish. You can configure the SMC to be a simple UART
also...
kirbalo
Post by voipfqw
But in the MPC850 user manual, even in the chapter 22, it was "SCC2 OR SCC3
can be configure to a UART(RS232)", did it mean that I cannot configure two
serial UART(RS232) at the same time?
Post by kirbalo
Post by voipfqw
Sorry I don't introduce myself.I am a R&D Engineer in China,and now I
want
Post by kirbalo
Post by voipfqw
to study and apply PPC850.perhaps this problem is too simple,but I will
be
Post by kirbalo
Post by voipfqw
honoured of your attention.
Post by Andrew J. Brehm
Post by voipfqw
Hello,everyone
I have a problem about PPC850,I want to configure two serial
ports(RS232) on this CPU at the same time.Can I do like this way?
Best regards
Voipfqw
Who are you?
--
Andrew J. Brehm
Marx Brothers Fan
PowerPC User
Supporter of Chicken Pizza
Since the MPC850(DE, SR, or DSL) derivatives have two SCC's and each can
be
Post by kirbalo
independently configured as UART's, you can do what you ask. The MPC850
(with no derivative) has only 1 SCC. You need to read chapters 21 and 22
http://www.freescale.com/files/product/doc/MPC850UM_D.pdf
http://www.freescale.com/webapp/sps/site
prod_summary.jsp?code=MPC850&nodeId=01DFTQJk194204
You may want to look at the Freescale Chinese site also...
--
Kirbalo...
K7S5A Pro, Athlon XP 1600+
1 Gig DDR, 120 GB, nVidia GeForce 4 MX 440
SuSE Linux 9.0 Pro & XP Pro Dual Boot
Linux 2.4.21-243-athlon
11:44am up 2 days 15:08, 3 users, load average: 1.00, 1.00, 1.00
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