34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
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// Bump.c
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// RSLK Bumper switches
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// negative logic internal pullup
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// June 28, 2024
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// TM4C MSPM0
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// PA5 PA27 Left, Bump 0,
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// PF0 PB15 Center Left, Bump 1,
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// PB3 PA28 Center Right, Bump 2
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// PC4 PA31 Right, Bump 3
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#include <ti/devices/msp/msp.h>
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#include "../inc/LaunchPad.h"
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void Bump_Init(void){
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IOMUX->SECCFG.PINCM[PA27INDEX] = (uint32_t) 0x00060081; // input, pull up
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IOMUX->SECCFG.PINCM[PB15INDEX] = (uint32_t) 0x00060081; // input, pull up
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IOMUX->SECCFG.PINCM[PA28INDEX] = (uint32_t) 0x00060081; // input, pull up
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IOMUX->SECCFG.PINCM[PA31INDEX] = (uint32_t) 0x00060081; // input, pull up
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}
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// bit 0 is left
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// bit 1 is left center
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// bit 2 is right center
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// bit 3 is right
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uint32_t Bump_In(void){
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// bit 27 is left
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// bit 15 is left center
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// bit 28 is right center
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// bit 31 is right
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return
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((GPIOA->DIN31_0&(1<<27)>>(27-0))| // PA27 into bit 0
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(GPIOB->DIN31_0&(1<<15)>>(15-1))| // PB15 into bit 1
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(GPIOA->DIN31_0&(1<<28)>>(28-2))| // PA28 into bit 2
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(GPIOA->DIN31_0&(1<<31)>>(31-3))) // PA31 into bit 3
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^0x0F; // convert to positive logic
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}
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