📄 example_280xgpiosetup.c
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GpioCtrlRegs.GPAQSEL2.bit.GPIO23 = 0; // Synch to SYSCLKOUT
GpioCtrlRegs.GPAMUX2.bit.GPIO20 = 1; // GPIO20 = EQEP1A
GpioCtrlRegs.GPAMUX2.bit.GPIO21 = 1; // GPIO21 = EQEP1B
GpioCtrlRegs.GPAMUX2.bit.GPIO22 = 1; // GPIO22 = EQEP1S
GpioCtrlRegs.GPAMUX2.bit.GPIO23 = 1; // GPIO23 = EQEP1I
// Enable eCAP1 on GPIO24
GpioCtrlRegs.GPAPUD.bit.GPIO24 = 0; // Enable pullup on GPIO24
GpioCtrlRegs.GPAQSEL2.bit.GPIO24 = 0; // Synch to SYSCLKOUT
GpioCtrlRegs.GPAMUX2.bit.GPIO24 = 1; // GPIO24 = ECAP1
// Set input qualifcation period for GPIO25 & GPIO26
GpioCtrlRegs.GPACTRL.bit.QUALPRD3=1; // Qual period = SYSCLKOUT/2
GpioCtrlRegs.GPAQSEL2.bit.GPIO25=2; // 6 samples
GpioCtrlRegs.GPAQSEL2.bit.GPIO26=2; // 6 samples
// Make GPIO25 the input source for XINT1
GpioCtrlRegs.GPAMUX2.bit.GPIO25 = 0; // GPIO25 = GPIO25
GpioCtrlRegs.GPADIR.bit.GPIO25 = 0; // GPIO25 = input
GpioIntRegs.GPIOXINT1SEL.all = 25; // XINT1 connected to GPIO25
// Make GPIO26 the input source for XINT2
GpioCtrlRegs.GPAMUX2.bit.GPIO26 = 0; // GPIO26 = GPIO26
GpioCtrlRegs.GPADIR.bit.GPIO26 = 0; // GPIO26 = input
GpioIntRegs.GPIOXINT2SEL.all = 26; // XINT2 connected to GPIO26
// Make GPIO27 wakeup from HALT/STANDBY Low Power Modes
GpioCtrlRegs.GPAMUX2.bit.GPIO27 = 0; // GPIO27 = GPIO27
GpioCtrlRegs.GPADIR.bit.GPIO27 = 0; // GPIO27 = input
GpioIntRegs.GPIOLPMSEL.bit.GPIO27=1; // GPIO27 will wake the device
SysCtrlRegs.LPMCR0.bit.QUALSTDBY=2; // Qualify GPIO27 by 2 OSCCLK
// cycles before waking the device
// from STANDBY
// Enable SCI-A on GPIO28 - GPIO29
GpioCtrlRegs.GPAPUD.bit.GPIO28 = 0; // Enable pullup on GPIO28
GpioCtrlRegs.GPAQSEL2.bit.GPIO28 = 3; // Asynch input
GpioCtrlRegs.GPAMUX2.bit.GPIO28 = 1; // GPIO28 = SCIRXDA
GpioCtrlRegs.GPAPUD.bit.GPIO29 = 0; // Enable pullup on GPIO29
GpioCtrlRegs.GPAMUX2.bit.GPIO29 = 1; // GPIO29 = SCITXDA
// Enable CAN-A on GPIO30 - GPIO31
GpioCtrlRegs.GPAPUD.bit.GPIO30 = 0; // Enable pullup on GPIO30
GpioCtrlRegs.GPAMUX2.bit.GPIO30 = 1; // GPIO30 = CANTXA
GpioCtrlRegs.GPAPUD.bit.GPIO31 = 0; // Enable pullup on GPIO31
GpioCtrlRegs.GPAQSEL2.bit.GPIO31 = 3; // Asynch input
GpioCtrlRegs.GPAMUX2.bit.GPIO31 = 1; // GPIO31 = CANRXA
// Enable I2C-A on GPIO32 - GPIO33
GpioCtrlRegs.GPBPUD.bit.GPIO32 = 0; // Enable pullup on GPIO32
GpioCtrlRegs.GPBMUX1.bit.GPIO32 = 1; // GPIO32 = SDAA
GpioCtrlRegs.GPBQSEL1.bit.GPIO33 = 3; // Asynch input
GpioCtrlRegs.GPBPUD.bit.GPIO33 = 0; // Enable pullup on GPIO33
GpioCtrlRegs.GPBQSEL1.bit.GPIO33 = 3; // Asynch input
GpioCtrlRegs.GPBMUX1.bit.GPIO33 = 1; // GPIO33 = SCLA
// Make GPIO34 an input
GpioCtrlRegs.GPBPUD.bit.GPIO34 = 0; // Enable pullup on GPIO34
GpioCtrlRegs.GPBMUX1.bit.GPIO34 = 0; // GPIO34 = GPIO34
GpioCtrlRegs.GPBDIR.bit.GPIO34 = 0; // GPIO34 = input
EDIS;
}
void Gpio_setup2(void)
{
// Example 1:
// Communications Pinout.
// This basic communications pinout includes:
// PWM1-3, CAP1, CAP2, SPI-A, SPI-B, CAN-A, SCI-A and I2C
// and a number of I/O pins
// Enable PWM1-3 on GPIO0-GPIO5
EALLOW;
GpioCtrlRegs.GPAPUD.bit.GPIO0 = 0; // Enable pullup on GPIO0
GpioCtrlRegs.GPAPUD.bit.GPIO1 = 0; // Enable pullup on GPIO1
GpioCtrlRegs.GPAPUD.bit.GPIO2 = 0; // Enable pullup on GPIO2
GpioCtrlRegs.GPAPUD.bit.GPIO3 = 0; // Enable pullup on GPIO3
GpioCtrlRegs.GPAPUD.bit.GPIO4 = 0; // Enable pullup on GPIO4
GpioCtrlRegs.GPAPUD.bit.GPIO5 = 0; // Enable pullup on GPIO5
GpioCtrlRegs.GPAMUX1.bit.GPIO0 = 1; // GPIO0 = PWM1A
GpioCtrlRegs.GPAMUX1.bit.GPIO1 = 1; // GPIO1 = PWM1B
GpioCtrlRegs.GPAMUX1.bit.GPIO2 = 1; // GPIO2 = PWM2A
GpioCtrlRegs.GPAMUX1.bit.GPIO3 = 1; // GPIO3 = PWM2B
GpioCtrlRegs.GPAMUX1.bit.GPIO4 = 1; // GPIO4 = PWM3A
GpioCtrlRegs.GPAMUX1.bit.GPIO5 = 1; // GPIO5 = PWM3B
// Enable an GPIO output on GPIO6
GpioCtrlRegs.GPAPUD.bit.GPIO6 = 0; // Enable pullup on GPIO6
GpioDataRegs.GPASET.bit.GPIO6 = 1; // Load output latch
GpioCtrlRegs.GPAMUX1.bit.GPIO6 = 0; // GPIO6 = GPIO6
GpioCtrlRegs.GPADIR.bit.GPIO6 = 1; // GPIO6 = output
// Enable eCAP1 on GPIO7
GpioCtrlRegs.GPAPUD.bit.GPIO7 = 0; // Enable pullup on GPIO7
GpioCtrlRegs.GPAQSEL1.bit.GPIO7 = 0; // Synch to SYSCLKOUT
GpioCtrlRegs.GPAMUX1.bit.GPIO7 = 3; // GPIO7 = ECAP2
// Enable GPIO outputs on GPIO8 - GPIO11
GpioCtrlRegs.GPAPUD.bit.GPIO8 = 0; // Enable pullup on GPIO8
GpioDataRegs.GPASET.bit.GPIO8 = 1; // Load output latch
GpioCtrlRegs.GPAMUX1.bit.GPIO8 = 0; // GPIO8 = GPIO8
GpioCtrlRegs.GPADIR.bit.GPIO8 = 1; // GPIO8 = output
GpioCtrlRegs.GPAPUD.bit.GPIO9 = 0; // Enable pullup on GPIO9
GpioDataRegs.GPASET.bit.GPIO9 = 1; // Load output latch
GpioCtrlRegs.GPAMUX1.bit.GPIO9 = 0; // GPIO9 = GPIO9
GpioCtrlRegs.GPADIR.bit.GPIO9 = 1; // GPIO9 = output
GpioCtrlRegs.GPAPUD.bit.GPIO10 = 0; // Enable pullup on GPIO10
GpioDataRegs.GPASET.bit.GPIO10 = 1; // Load output latch
GpioCtrlRegs.GPAMUX1.bit.GPIO10 = 0; // GPIO10 = GPIO10
GpioCtrlRegs.GPADIR.bit.GPIO10 = 1; // GPIO10 = output
GpioCtrlRegs.GPAPUD.bit.GPIO11 = 0; // Enable pullup on GPIO11
GpioDataRegs.GPASET.bit.GPIO11 = 1; // Load output latch
GpioCtrlRegs.GPAMUX1.bit.GPIO11 = 0; // GPIO11 = GPIO11
GpioCtrlRegs.GPADIR.bit.GPIO11 = 1; // GPIO11 = output
// Enable SPI-B on GPIO12 - GPIO15
GpioCtrlRegs.GPAPUD.bit.GPIO12 = 0; // Enable pullup on GPIO12 (SPISIMOB)
GpioCtrlRegs.GPAPUD.bit.GPIO12 = 0; // Enable pullup on GPIO13 (SPISOMIB)
GpioCtrlRegs.GPAPUD.bit.GPIO14 = 0; // Enable pullup on GPIO14 (SPICLKB)
GpioCtrlRegs.GPAPUD.bit.GPIO15 = 0; // Enable pullup on GPIO15 (SPISTEB)
GpioCtrlRegs.GPAQSEL1.bit.GPIO12 = 3; // asynch input
GpioCtrlRegs.GPAQSEL1.bit.GPIO13 = 3; // asynch input
GpioCtrlRegs.GPAQSEL1.bit.GPIO14 = 3; // asynch input
GpioCtrlRegs.GPAQSEL1.bit.GPIO15 = 3; // asynch input
GpioCtrlRegs.GPAMUX1.bit.GPIO12 = 3; // GPIO12 = SPISIMOB
GpioCtrlRegs.GPAMUX1.bit.GPIO13 = 3; // GPIO13 = SPISOMIB
GpioCtrlRegs.GPAMUX1.bit.GPIO14 = 3; // GPIO14 = SPICLKB
GpioCtrlRegs.GPAMUX1.bit.GPIO15 = 3; // GPIO15 = SPISTEB
// Enable SPI-A on GPIO16 - GPIO19
GpioCtrlRegs.GPAPUD.bit.GPIO16 = 0; // Enable pullup on GPIO16 (SPICLKA)
GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0; // Enable pullup on GPIO17 (SPIS0MIA)
GpioCtrlRegs.GPAPUD.bit.GPIO18 = 0; // Enable pullup on GPIO18 (SPICLKA)
GpioCtrlRegs.GPAPUD.bit.GPIO19 = 0; // Enable pullup on GPIO19 (SPISTEA)
GpioCtrlRegs.GPAQSEL2.bit.GPIO16 = 3; // asynch input
GpioCtrlRegs.GPAQSEL2.bit.GPIO17 = 3; // asynch input
GpioCtrlRegs.GPAQSEL2.bit.GPIO18 = 3; // asynch input
GpioCtrlRegs.GPAQSEL2.bit.GPIO19 = 3; // asynch input
GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 1; // GPIO16 = SPICLKA
GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 1; // GPIO17 = SPIS0MIA
GpioCtrlRegs.GPAMUX2.bit.GPIO18 = 1; // GPIO18 = SPICLKA
GpioCtrlRegs.GPAMUX2.bit.GPIO19 = 1; // GPIO19 = SPISTEA
// Enable EQEP1 on GPIO20 - GPIO23
GpioCtrlRegs.GPAPUD.bit.GPIO20 = 0; // Enable pullup on GPIO20 (EQEP1A)
GpioCtrlRegs.GPAPUD.bit.GPIO21 = 0; // Enable pullup on GPIO21 (EQEP1B)
GpioCtrlRegs.GPAPUD.bit.GPIO22 = 0; // Enable pullup on GPIO22 (EQEP1S)
GpioCtrlRegs.GPAPUD.bit.GPIO23 = 0; // Enable pullup on GPIO23 (EQEP1I)
GpioCtrlRegs.GPAQSEL2.bit.GPIO20 = 0; // Synch to SYSCLKOUT
GpioCtrlRegs.GPAQSEL2.bit.GPIO21 = 0; // Synch to SYSCLKOUT
GpioCtrlRegs.GPAQSEL2.bit.GPIO22 = 0; // Synch to SYSCLKOUT
GpioCtrlRegs.GPAQSEL2.bit.GPIO23 = 0; // Synch to SYSCLKOUT
GpioCtrlRegs.GPAMUX2.bit.GPIO20 = 1; // GPIO20 = EQEP1A
GpioCtrlRegs.GPAMUX2.bit.GPIO21 = 1; // GPIO21 = EQEP1B
GpioCtrlRegs.GPAMUX2.bit.GPIO22 = 1; // GPIO22 = EQEP1S
GpioCtrlRegs.GPAMUX2.bit.GPIO23 = 1; // GPIO23 = EQEP1I
// Enable eCAP1 on GPIO24
GpioCtrlRegs.GPAPUD.bit.GPIO24 = 0; // Enable pullup on GPIO24 (ECAP1)
GpioCtrlRegs.GPAQSEL2.bit.GPIO24 = 0; // Synch to SYSCLKOUT
GpioCtrlRegs.GPAMUX2.bit.GPIO24 = 1; // GPIO24 = ECAP1
// Set input qualifcation period for GPIO25 & GPIO26 inputs
GpioCtrlRegs.GPACTRL.bit.QUALPRD3=1; // Qual period = SYSCLKOUT/2
GpioCtrlRegs.GPAQSEL2.bit.GPIO25=2; // 6 samples
GpioCtrlRegs.GPAQSEL2.bit.GPIO26=1; // 3 samples
// Make GPIO25 the input source for XINT1
GpioCtrlRegs.GPAMUX2.bit.GPIO25 = 0; // GPIO25 = GPIO25
GpioCtrlRegs.GPADIR.bit.GPIO25 = 0; // GPIO25 = input
GpioIntRegs.GPIOXINT1SEL.all = 25; // XINT1 connected to GPIO25
// Make GPIO26 the input source for XINT2
GpioCtrlRegs.GPAMUX2.bit.GPIO26 = 0; // GPIO26 = GPIO26
GpioCtrlRegs.GPADIR.bit.GPIO26 = 0; // GPIO26 = input
GpioIntRegs.GPIOXINT2SEL.all = 26; // XINT2 connected to GPIO26
// Make GPIO27 wakeup from HALT/STANDBY Low Power Modes
GpioCtrlRegs.GPAMUX2.bit.GPIO27 = 0; // GPIO27 = GPIO27
GpioCtrlRegs.GPADIR.bit.GPIO27 = 0; // GPIO27 = input
GpioIntRegs.GPIOLPMSEL.bit.GPIO27=1; // GPIO27 will wake the device
SysCtrlRegs.LPMCR0.bit.QUALSTDBY=2; // Qualify GPIO27 by 2 OSCCLK
// cycles before waking the device
// from STANDBY
// Enable SCI-A on GPIO28 - GPIO29
GpioCtrlRegs.GPAPUD.bit.GPIO28 = 0; // Enable pullup on GPIO28
GpioCtrlRegs.GPAQSEL2.bit.GPIO28 = 3; // asynch input
GpioCtrlRegs.GPAMUX2.bit.GPIO28 = 1; // GPIO28 = SCIRXDA
GpioCtrlRegs.GPAPUD.bit.GPIO29 = 0; // Enable pullup on GPIO29
GpioCtrlRegs.GPAMUX2.bit.GPIO29 = 1; // GPIO29 = SCITXDA
// Enable CAN-A on GPIO30 - GPIO31
GpioCtrlRegs.GPAPUD.bit.GPIO30 = 0; // Enable pullup on GPIO30
GpioCtrlRegs.GPAMUX2.bit.GPIO30 = 1; // GPIO30 = CANTXA
GpioCtrlRegs.GPAPUD.bit.GPIO31 = 0; // Enable pullup on GPIO31
GpioCtrlRegs.GPAQSEL2.bit.GPIO31 = 3; // asynch input
GpioCtrlRegs.GPAMUX2.bit.GPIO31 = 1; // GPIO31 = CANRXA
// Enable I2C-A on GPIO32 - GPIO33
GpioCtrlRegs.GPBPUD.bit.GPIO32 = 0; // Enable pullup on GPIO32
GpioCtrlRegs.GPBPUD.bit.GPIO33 = 0; // Enable pullup on GPIO33
GpioCtrlRegs.GPBQSEL1.bit.GPIO32 = 3; // asynch input
GpioCtrlRegs.GPBQSEL1.bit.GPIO32 = 3; // asynch input
GpioCtrlRegs.GPBMUX1.bit.GPIO32 = 1; // GPIO32 = SDAA
GpioCtrlRegs.GPBMUX1.bit.GPIO33 = 1; // GPIO33 = SCLA
// Make GPIO34 an input
GpioCtrlRegs.GPBPUD.bit.GPIO32 = 0; // Enable pullup on GPIO34
GpioCtrlRegs.GPBMUX1.bit.GPIO34 = 0; // GPIO34 = GPIO34
GpioCtrlRegs.GPBDIR.bit.GPIO34 = 0; // GPIO34 = input
EDIS;
}
//===========================================================================
// No more.
//===========================================================================
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