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Discussion Groups | TMS320C54x | McBSP as GPIO.
Technical discussions about the TI C54x DSPs (including the c5401, c5402, c5402a, c5404, c5407, c5409, c5409a, c5410, c5410a, c5416, c5420, c5421, c5441, c549, c5470 and c5471).
McBSP as GPIO. - fraizzer - Nov 22 9:44:00 2002
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Hello I have a 5402 DSK, and want to use the McBSP1 as a small GPIO port. Could anyone help me with a short C example on how to setup the McBSP1 as GPIO and how to control some of the pins as Output's. Best Regards Jacob |
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Re: McBSP as GPIO. - Lucy Jordan - Nov 22 17:38:00 2002
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look in the c54x reference set vol 5 (enhanced peripherals), i believe, and you'll find all the mcbsp registers. there'll be a few bits to set the mcbsp for gpio and another few bits to read/write to the pins. specifically look at page 2-96 (p121). you may also want to read the chip support library api reference guide. both of these documents should show up if you search for them at www.ti.com --- In c54x@y..., "fraizzer" <jacob@j...> wrote: > Hello > > I have a 5402 DSK, and want to use the McBSP1 as a small GPIO port. > Could anyone help me with a short C example on how to setup the > McBSP1 as GPIO and how to control some of the pins as Output's. > > Best Regards Jacob |
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Re: Re: McBSP as GPIO. - Author Unknown - Nov 23 8:16:00 2002
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Thank you. It lead me to this: //Port nr. is CLKRP = 0, CLKXP = 1, FSRP = 2, FSXP = 3. MCBSP_SUBREG_BITWRITE(1, PCR_SUBADDR, iPortNr, 1, 0); MCBSP_SUBREG_BITWRITE(1, PCR_SUBADDR, iPortNr, 1, 1); For setting and reseting the pins in GPIO mode. I chose to setup the McBSP as GPIO from the DSP/BIOS configuration mannager. /Jacob >>>>> "Lucy" == Lucy Jordan <> writes: Lucy> look in the c54x reference set vol 5 (enhanced peripherals), i Lucy> believe, and you'll find all the mcbsp registers. there'll be a Lucy> few bits to set the mcbsp for gpio and another few bits to Lucy> read/write to the pins. specifically look at page 2-96 (p121). Lucy> you may also want to read the chip support library api reference Lucy> guide. both of these documents should show up if you search for Lucy> them at www.ti.com Lucy> --- In c54x@y..., "fraizzer" <jacob@j...> wrote: >> Hello >> >> I have a 5402 DSK, and want to use the McBSP1 as a small GPIO port. >> Could anyone help me with a short C example on how to setup the >> McBSP1 as GPIO and how to control some of the pins as Output's. >> >> Best Regards Jacob |
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