some stuff

labW6barnestr/Inc/delay.h

@@ -0,0 +1,37 @@
+/*
+ * delay.h
+ *
+ * Created on: Dec 10, 2021
+ * Author: Trevor Barnes
+ */
+
+//include guards
+#ifndef DELAY_H_
+#define DELAY_H_
+
+#include <inttypes.h>
+
+#define STK_CTRL (volatile uint32_t*) 0xE000E010
+#define STK_LOAD (volatile uint32_t*) 0xE000E014
+#define STK_VAL (volatile uint32_t*) 0xE000E018
+
+#define EN 1
+#define TICKINT (1<<1)
+#define CLKSOURCE (1<<2)
+#define COUNTFLAG (1<<16)
+
+/*
+ * delay_1ms
+ * 		Busy wait for n ms
+ *
+ * 		For n iterations
+ * 			load number of cycles for 1 ms
+ * 			set one to enable and clock source
+ *
+ * 			wait for countflag to be set
+ */
+void delay_1ms(uint32_t n);
+
+
+
+#endif /* DELAY_H_ */

labW6barnestr/Inc/led.h

@@ -0,0 +1,101 @@
+/*
+ * led.h
+ *
+ * Created on: Dec 10, 2021
+ * Author: Trevor Barnes
+ */
+
+#ifndef LED_H_
+#define LED_H_
+
+#include <inttypes.h>
+
+#define RCC_AHB1ENR (volatile uint32_t*) 0x40023830
+#define GPIOBEN 1
+#define GPIOB_MODER (volatile uint32_t*) 0x40020400
+#define GPIOB_PUPDR (volatile uint32_t*) 0x4002040C
+#define GPIOB_IDR (volatile uint32_t*) 0x40020410
+#define GPIOB_ODR (volatile uint32_t*) 0x40020414
+#define GPIOB_BSRR (volatile uint32_t*) 0x40020418
+
+#define ALL_LEDS (0b11110111111<<5)
+
+/*
+ * led_init()
+ * This function should:
+ * 		1. Enable the GPIOB in RCC_AHB1ENR
+ * 		2. Turn on to set LED0 - LED9 to output mode ("01")
+ */
+void led_init();
+
+/*
+ * led_allOn()
+ * 		1. Turn on all leds (hint use ODR or BSRR)
+ * 		Note you should not effect other pins on PortB
+ */
+void led_allOn();
+
+/*
+ * led_allOff()
+ * 		1. Turn off all leds (hint use ODR or BSRR)
+ * 		Note you should not effect other pins on PortB
+ */
+void led_allOff();
+
+/*
+ * led_on()
+ * 		Args: 0-9 to turn on specific led
+ * 		print error message is arg is out of range
+ */
+void led_on(uint8_t ledIndex);
+
+/*
+ * led_off()
+ * 		Args: 0-9 to turn off specific led
+ * 		print error message is arg is out of range
+ */
+void led_off(uint8_t ledIndex);
+
+
+/*
+ * led_scan()
+ * 		Scan the light across and back at the current speed
+ */
+void led_scan();
+
+/*
+ * led_flash()
+ * 		flash all of the lights 10 times at the current speed
+ */
+void led_flash();
+
+/*
+ * led_setSpeed (uint8_t speed)
+ * 		arg: speed (0 slow - 9 fast)
+ * 		Args out of range should print error to console
+ */
+void led_setSpeed(uint8_t speed);
+
+/*
+ * led_incSpeed()
+ * 		increases the speed by one
+ * 		if maxed out leaves the speed at the max value
+ */
+void led_incSpeed();
+
+/*
+ * led_decSpeed()
+ * 		decreases the speed by one
+ * 		if at zero should stay at zero
+ */
+void led_decSpeed();
+
+/*
+ * getCurrentSpeed
+ * 		returns the current speed
+ */
+uint8_t getCurrentSpeed();
+
+
+
+#endif

labW6barnestr/Inc/memory.h

@@ -0,0 +1,35 @@
+/**
+ * @file memory.h
+ * @author Trevor Barnes
+ * @brief 
+ * @version 0.1
+ * @date 2022-01-19
+ * 
+ * @copyright Copyright (c) 2022
+ * 
+ */
+
+//include guards
+#ifndef MEMORY_H_
+#define MEMORY_H_
+
+#include <inttypes.h>
+#include "uart_driver.h"
+
+void initMemConsole();
+
+/**
+ * Reads and prints the memory value at address provided: "addr"
+ */
+void readMem(uint32_t addr);
+/**
+ * Writes the provided "data" value as an unsigned 32-bit word at the provided address: "addr"
+ */
+void writeMem(uint32_t addr, uint32_t data);
+/**
+ * Prints out formatted, hexadecimal memory values in "byte-sized" chunks starting at the provided
+ * memory address: "addr". The length of the memory dump is provided by "length".
+ */
+void dumpMem(uint32_t addr, int length);
+
+#endif /* MEMORY_H_ */

labW6barnestr/Inc/piezoSpeaker.h

@@ -0,0 +1,171 @@
+/**
+ * @file piezoSpeaker.h
+ * @author Trevor Barnes
+ * @brief 
+ * @version 0.1
+ * @date 2022-01-19
+ * 
+ * @copyright Copyright (c) 2022
+ * 
+ */
+
+#ifndef PIEZOSPEAKER_H_
+#define PIEZOSPEAKER_H_
+
+// RCC
+#define RCC_AHB1ENR (volatile uint32_t*) 0x40023830
+#define RCC_APB1ENR (volatile uint32_t*) 0x40023840
+
+// GPIOB
+#define GPIOB_MODER (volatile uint32_t*) 0x40020400
+#define GPIOBEN 1
+#define GPIOB_AFRL (volatile uint32_t*) 0x40020420
+#define AFRL_TIM3_CH1_EN 17
+
+// Timer 3
+#define TIM3_EN 1
+#define TIM3_CCMR1 (volatile uint32_t*) 0x40000418
+#define OC1PE 3
+#define OC1M_PWM2 0b1110000
+#define TIM3_CCER (volatile uint32_t*) 0x40000420
+#define CCER_CC1E 1
+#define TIM3_EGR (volatile uint32_t*) 0x40000414
+#define EGR_UG 1
+#define TIM3_PSC (volatile uint32_t*) 0x40000428
+#define TIM3_ARR (volatile uint32_t*) 0x4000042C
+#define TIM3_CCR1 (volatile uint32_t*) 0x40000434
+#define TIM3_CR1 (volatile uint32_t*) 0x40000400
+#define CR_ARPE_EN 7
+#define CR_CEN 1
+
+#define PB4_AF_V 0b10
+#define PB4_AF_P 9
+
+#define mil 1000000
+
+typedef struct{
+	double noteFrequency;
+	double noteDuration;
+} Note;
+
+void piezo_init();
+
+int play_note(Note noteToPlay);
+// void play_note(double playFrequency, double playDuration);
+
+void play_song(Note *song);
+
+// Note Frequency Symbols
+// Rest technically = 0
+#define r	0
+#define	C0  16.35
+#define	Db0	17.32
+#define	D0	18.35
+#define	Eb0	19.45
+#define	E0	20.60
+#define	F0	21.83
+#define	Gb0	23.12
+#define	G0	24.50
+#define	Ab0	25.96
+#define	A0	27.50
+#define	Bb0	29.14
+#define	B0	30.87
+#define	C1	32.70
+#define	Db1	34.65
+#define	D1	36.71
+#define	Eb1	38.89
+#define	E1	41.20
+#define	F1	43.65
+#define	Gb1	46.25
+#define	G1	49.00
+#define	Ab1	51.91
+#define	A1	55.00
+#define	Bb1	58.27
+#define	B1	61.74
+#define	C2	65.41
+#define	Db2	69.30
+#define	D2	73.42
+#define	Eb2	77.78
+#define	E2	82.41
+#define	F2	87.31
+#define	Gb2	92.50
+#define	G2	98.00
+#define	Ab2	103.83
+#define	A2	110.00
+#define	Bb2	116.54
+#define	B2	123.47
+#define	C3	130.81
+#define	Db3	138.59
+#define	D3	146.83
+#define	Eb3	155.56
+#define	E3	164.81
+#define	F3	174.61
+#define	Gb3	185.00
+#define	G3	196.00
+#define	Ab3	207.65
+#define	A3	220.00
+#define	Bb3	233.08
+#define	B3	246.94
+#define	C4	261.63
+#define	Db4	277.18
+#define	D4	293.66
+#define	Eb4	311.13
+#define	E4	329.63
+#define	F4	349.23
+#define	Gb4	369.99
+#define	G4	392.00
+#define	Ab4	415.30
+#define	A4	440.00
+#define	Bb4	466.16
+#define	B4	493.88
+#define	C5	523.25
+#define	Db5	554.37
+#define	D5	587.33
+#define	Eb5	622.25
+#define	E5	659.26
+#define	F5	698.46
+#define	Gb5	739.99
+#define	G5	783.99
+#define	Ab5	830.61
+#define A5	880.00
+#define	Bb5	932.33
+#define	B5	987.77
+#define	C6	1046.50
+#define	Db6	1108.73
+#define	D6	1174.66
+#define	Eb6	1244.51
+#define	E6	1318.51
+#define	F6	1396.91
+#define	Gb6	1479.98
+#define	G6	1567.98
+#define	Ab6	1661.22
+#define	A6	1760.00
+#define	Bb6	1864.66
+#define	B6	1975.53
+#define	C7	2093.00
+#define	Db7	2217.46
+#define	D7	2349.32
+#define	Eb7	2489.02
+#define	E7	2637.02
+#define	F7	2793.83
+#define	Gb7	2959.96
+#define	G7	3135.96
+#define	Ab7	3322.44
+#define A7	3520.01
+#define	Bb7	3729.31
+#define	B7	3951.07
+#define	C8	4186.01
+#define	Db8	4434.92
+#define	D8	4698.64
+#define	Eb8	4978.03
+// Ending "termination" value indicating end of a song
+#define T 5000.00
+// Tempo value set at 120 beats per min
+#define BPM 120
+#define H 2*Q
+#define Q 60000/BPM
+#define E Q/2
+#define S Q/4
+#define W 4*Q
+
+#endif

labW6barnestr/Inc/uart_driver.h

@@ -0,0 +1,49 @@
+/*
+ * uart_driver.h
+ *
+ *  Created on: Nov 8, 2016
+ *      Author: barnekow
+ */
+
+#ifndef UART_DRIVER_H_
+#define UART_DRIVER_H_
+
+#include <inttypes.h>
+
+// RCC registers
+#define RCC_APB1ENR (volatile uint32_t*) 0x40023840
+#define RCC_AHB1ENR (volatile uint32_t*) 0x40023830
+
+#define GPIOAEN 0		// GPIOA Enable is bit 0 in RCC_APB1LPENR
+#define USART2EN 17  // USART2 enable is bit 17 in RCC_AHB1LPENR
+
+// GPIOA registers
+#define GPIOA_MODER (volatile uint32_t*) 0x40020000
+#define GPIOA_AFRL  (volatile uint32_t*) 0x40020020
+#define USART_SR    (volatile uint32_t*) 0x40004400
+#define USART_DR    (volatile uint32_t*) 0x40004404
+#define USART_BRR   (volatile uint32_t*) 0x40004408
+#define USART_CR1   (volatile uint32_t*) 0x4000440c
+#define USART_CR2   (volatile uint32_t*) 0x40004410
+#define USART_CR3   (volatile uint32_t*) 0x40004414
+
+// CR1 bits
+#define UE 13 //UART enable
+#define TE 3  // Transmitter enable
+#define RE 2  // Receiver enable
+
+// Status register bits
+#define TXE 7  // Transmit register empty
+#define RXNE 5  // Receive register is not empty..char received
+
+// Function prototypes
+extern void init_usart2(uint32_t baud, uint32_t sysclk);
+extern char usart2_getch();
+extern void usart2_putch(char c);
+
+// syscalls overrides
+int _read(int file, char *ptr, int len);
+int _write(int file, char *ptr, int len);
+
+
+#endif /* UART_DRIVER_H_ */