Subject:
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Re: swan question
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Sun, 30 Oct 2005 14:53:13 GMT
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Viewed:
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5960 times
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In lugnet.robotics.rcx, David Liddell wrote:
> Hi
> I'm experimenting with the Swan firmware but I have a puzzle. Is the constant
> OUT_A a direct equivalent to MTR_A as replacing OUT_A with MTR_A doesnt seem to
> work.I've used SetMotorPower128(MTR_A,50) to set motor speed. The command that
> doesn't seem to work is OnFwd(MTR_A) or OnRev(MTR_A).
>
> David Liddell
The help file should explain when you can use the MTR_A constant versus when you
can use the OUT_A constant. It will tell you that MTR can be used with the
MotorPowerXXX and SetMotorPowerXXX functions. Use the help system Find feature
and it will list the following functions:
MotorBrakePower, MotorPower128, MotorPower8, MotorPowerSigned,
SetMotorBrakePower, SetMotorPower128, SetMotorPower8, and SetMotorPowerSigned.
You can look at the NQC API via nqc -api and see that MTR_A = 0 and OUT_A = 1
#define MTR_A 0
#define MTR_B 1
#define MTR_C 2
#define MTR_D 3
#define MTR_E 4
#define MTR_F 5
#define OUT_A 0x01
#define OUT_B 0x02
#define OUT_C 0x04
Given that fact, technically, you could use MTR_B as a substitute for OUT_A,
MTR_C as a substitute for OUT_B, and MTR_E as a substitute for OUT_C. I would
HIGHLY recommend that you NOT do that.
John Hansen
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Message is in Reply To:
 | | swan question
|
| Hi I'm experimenting with the Swan firmware but I have a puzzle. Is the constant OUT_A a direct equivalent to MTR_A as replacing OUT_A with MTR_A doesnt seem to work.I've used SetMotorPower128(MTR_A,50) to set motor speed. The command that doesn't (...) (19 years ago, 29-Oct-05, to lugnet.robotics.rcx)
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