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This commit is contained in:
tbarnes98
2022-02-20 19:39:36 -06:00
parent debbd37501
commit 76f65fd1e9
5 changed files with 69 additions and 39 deletions
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62
labW6barnestr/Inc/piezoSpeaker.h
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@@ -41,7 +41,8 @@ typedef struct {
// GPIOB
#define GPIOBEN 1
#define AFRL_TIM3_CH1_EN 17
#define PB4_AF_V 0b10
#define PB4_AF_P 9
typedef struct {
uint32_t MODER;
@@ -56,41 +57,44 @@ typedef struct {
uint32_t AFRH;
} GPIO;
// Timer 3
typedef struct {
uint32_t CR1; // Control Register 1
uint32_t CR2; // Control Register 2
uint32_t SMCR; // Slave Mode Control Register
uint32_t DIER; // DMA/Interrupt Enable Register
uint32_t SR; // Status Register
uint32_t EGR; // Event Generation Register
uint32_t CCMR1; // Capture/Compare Mode Register 1
uint32_t CCMR2; // Capture/Compare Mode Register 2
uint32_t CCER; // Capture/Compare Enable Register
uint32_t CNT; // Counter
uint32_t PSC; // Prescaler
uint32_t ARR; // Auto-Reload Register
uint32_t _RESERVED_1_;
uint32_t CCR1; // Capture/Compare Register 1
uint32_t CCR2; // Capture/Compare Register 2
uint32_t CCR3; // Capture/Compare Register 3
uint32_t CCR4; // Capture/Compare Register 4
uint32_t _RESERVED_2_;
uint32_t DCR; // DMA Control Register
uint32_t DMAR; // DMA Address for Full Transfer
uint32_t TIM2_OR; // TIM2 Option Register
uint32_t TIM5_OR; // TIM5 Option Register
} TIM;
// Timers 3 & 4
#define TIM3_EN 1
#define TIM4_EN 2
#define AFRL_TIM3_CH1_EN 17
#define OC1PE 3
#define OC1M_PWM2 0b1110000
#define CCER_CC1E 1
#define EGR_UG 1
#define CR_ARPE_EN 7
#define CR_CEN 1
typedef struct {
uint32_t CR1;
uint32_t CR2;
uint32_t SMCR;
uint32_t DIER;
uint32_t SR;
uint32_t EGR;
uint32_t CCMR1;
uint32_t CCMR2;
uint32_t CCER;
uint32_t CNT;
uint32_t PSC;
uint32_t ARR;
uint32_t _RESERVED_1_;
uint32_t CCR1;
uint32_t CCR2;
uint32_t CCR3;
uint32_t CCR4;
uint32_t _RESERVED_2_;
uint32_t DCR;
uint32_t DMAR;
uint32_t TIM2_OR;
uint32_t TIM5_OR;
} TIM;
#define DIER_TIE 6
#define PB4_AF_V 0b10
#define PB4_AF_P 9
#define pitchDivisor 1000000
// SYSCFG
@@ -125,7 +129,7 @@ extern Note songIM[];
extern Note songMT[];
extern Note songFG[];
// Initializes the piezo speaker to be used with timer 3
// Initializes the piezo speaker to be used with timer 3. Also initializes timer 4 for note duration interrupt
void piezo_init();
// Plays a given note at a certain frequency for a certain duration