26488b16e6
can-calc-bit-timing: improve printing of bit timing parameters
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This patch adds additional fields when printing the bit timing
parameters. Now the real bitrate the nominal and the real sample point
as well as the error of the sample point is displayed.
The output now looks like this:
Bit timing parameters for at91 with 100.000000 MHz ref clock
nominal real Bitrt nom real SampP
Bitrate TQ[ns] PrS PhS1 PhS2 SJW BRP Bitrate Error SampP SampP Error CAN_BR
1000000 50 7 7 5 1 5 1000000 0.0% 75.0% 75.0% 0.0% 0x00040664
800000 50 8 8 8 1 5 800000 0.0% 80.0% 68.0% 15.0% 0x00040777
500000 100 8 8 3 1 10 500000 0.0% 87.5% 85.0% 2.9% 0x00090772
250000 250 6 7 2 1 25 250000 0.0% 87.5% 87.5% 0.0% 0x00180561
125000 500 6 7 2 1 50 125000 0.0% 87.5% 87.5% 0.0% 0x00310561
100000 500 8 8 3 1 50 100000 0.0% 87.5% 85.0% 2.9% 0x00310772
50000 1250 6 7 2 1 125 50000 0.0% 87.5% 87.5% 0.0% 0x007c0561
20000 ***bitrate not possible***
10000 ***bitrate not possible***
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2010-07-20 13:43:12 +00:00
ccd199739e
can-calc-bit-timing: use algorithm from the kernel
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This patch copies the algorithm functions (can_update_spt and
can_calc_bittiming) from the kernel. Then some glue code is added that
these functions compile in userspace.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2010-07-20 13:43:08 +00:00
daed6be029
can-calc-bit-timing: fix indention
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Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2010-07-20 13:43:04 +00:00
fa9c05021c
add can-calc-bit-timing
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Add the tool as sent by Wolfgang via email
(<4BE152D2.6060306@grandegger.com>).
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2010-07-20 13:42:57 +00:00
Marc Kleine-Budde