ELEC2645 (2015/16) / Mbed 2 deprecated Main_code_ver18

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Dependencies:   FATFileSystem N5110_mod SDFileSystem USBDevice mbed

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main.h File Reference
Data Structures | Namespaces | Functions | Variables

main.h File Reference

Header file containing functions prototypes, defines, and global variables. More...

Go to the source code of this file.

Data Structures

struct  buttons_struct
 # Flags, maps & variables More...

Namespaces

namespace  keyMap
 

indicates name of button pressed


namespace  ButtonOut_val
 

used to map the button presses on to the boolean flags


namespace  ButtonOut_pos
 

stores the current position of the ButtonOut scan, in order to select the correct value for the output from the ButtonOut_val array


namespace  Button_init
 

# Functions


namespace  Button_scan_ISR
 

function called by Button_scan_tkr


namespace  Button_update
 

Used to update the boolean flags within Buttons_struct.


namespace  shift_LED
 

LED above the shift button on the PCB.


namespace  LED_buffer
 

# Flags, maps & variables


namespace  LED_pos
 

stores the current position of the LED_bus scan, in order to select the correct value for the output from the LED_buffer array


namespace  LED_write
 

updates the values within LED_buffer to those required for the current output


namespace  Sequence_struct
 

generates the variables requred for a sequence


namespace  drawMenu
 

draws menu to LCD, and returns selected value


namespace  drawVariable
 

draws variable to LCD


namespace  bool_to_int
 

converts boolean array to integer


namespace  selector
 

selects value between 0 and 7 based on step button press


Functions

BusOut ButtonOut (PTE26, PTE25, PTD3, PTC8)
 # IO & interrupts
InterruptIn ButtonIn_A (PTB11)
 interrupt pins connected to button matrix outputs
void Button_init ()
 initialises button matrix
void Button_scan_ISR ()
void Button_update (int row)
void ButtonIn_A_ISR ()
 interrupt subroutines for ButtonIn_* input
void ButtonIn_B_ISR ()
void ButtonIn_C_ISR ()
void ButtonIn_D_ISR ()
void ButtonIn_E_ISR ()
BusOut LED_bus (PTC0, PTC9, PTC5, PTC7, PTC2, PTA2, PTB23, PTA1)
 # IO & interrupts
void LED_scan_ISR ()
 # LED functions
void LED_write (uint16_t value)
 Matrix refresh routine.
void LED_init ()
 initialises LEDs
N5110 lcd (PTE26, PTA0, PTC4, PTD0, PTD2, PTD1, PTC3)
 # IO
void LCD_init ()
 # LCD functions
void LCD_set ()
 function to set brightness and PWM frequency values
void LCD_printMain ()
 function to print main screen to display
void Sequence_init ()
 # Sequence functions
void Sequence_write ()
 writes input data to sequence gate
void Sequence_increment_ISR ()
 interrupt call for sequence increment
void Sequence_increment ()
 increments sequencer
InterruptIn tempo_tapIn (PTB9)
 interrupt for tap tempo button
void tempo_init ()
 # functions
void tempo_ISR ()
 interrupt called by tap tempo input
void tempo_set ()
 tempo set routine
void tempo_update ()
 Indicates tempo to be updated (used when tempo is set via menu)
void Audio_init ()
 map to indicate positions of RAW WAV files on SD card
void Audio_ISR ()
 updates speaker output
void USB_init ()
 # functions
void decay_ISR ()
 called by decay ticker
void audio_tkr_ISR ()
 # USB audio functions
void mainMenu_draw ()
 # functions
void editMenu_draw ()
 function to control edit menu navigation
int drawMenu (const char *array[])
 draws single level menu on screen
void drawVariable (const char *variableName, float *variable, float step_size, float max, float min, void(*function)())
SDFileSystem sd (PTE3, PTE1, PTE2, PTE4,"sd")
 # IO
void load ()
 # Functions
void save ()
 saves current sequence data to SD card
AnalogOut SOUND_OUT_1 (DAC0_OUT)
 # IO
void init ()
 trigger channels
void IO_init ()
 initialises general IO
int bool_to_int (bool *array, int shifter)
void selector (bool *flag, int *variable)
void check_flags ()
 checks interrupt flags

Variables

Ticker Button_scan_tkr
 ticker to rotate ButtonOut bus
bool ButtonFlag_zero = 0
 used to indicate if any button has been pressed
bool ButtonFlag_cols [4] = {0,0,0,0}
 used to indicate if the input on the column during the last scan was equal to zero
Ticker LED_scan_tkr
 ticker used to scan through the LED matrix values
float brightness = 0.32
 # LCD variables
float PWM_freq = 50
 current backlight PWM frequency
bool inverse = false
 boolean to keep track of screen colour inversion
char * inst_names []
 # Sequence data
Ticker Sequence_increment_tkr
 # Sequence IO & interrupts
int Seq_current_inst = 0
 # flags & variables
int Seq_current_seq = 0
 currently selected sequence
int Seq_prev_inst = 0
 previously selected instrument channel (used when skip button is pressed)
int Seq_current_step = 15
 current sequence step
volatile int Seq_flag = 0
 flag to indicate step increment
float tempo = 60
 current tempo value
bool running = 1
 flag to indicate if the sequence is currently running
bool inst_flag = 0
 indicates whether system is waiting for instrument channel selection
bool pattern_flag = 0
 indicates whether system is waiting for sequence pattern selection
bool skip_flag = 0
 indicates whether in skip setup mode
Timer tempo_time
 # IO & interrupts
volatile int tempo_flag
 # flags & variables
int tempo_timerState
 indicates how many times tap tempo button has been pressed
float tempo_debounce = 0
 keeps track of button bounces
volatile int tempo_update_flag = 0
 indicates that tempo has been changed
char * audio_buffer [8]
 # flags & variables
int USB_mode = 3
 # flags & variables
volatile int decay_flag = 0
 indicates whether the output needs clearing
USBMIDI * midi = 0
 # IO & interrupts
USBSerial * pc = 0
 pointer to serial function
USBAudio * audio = 0
 pointer to audio function
Ticker decay_tkr
 ticker for note decay
Ticker audio_tkr
 # flags & variables
int16_t USBaudio_buffer [96/2]
 buffer to contain incoming audio packets
volatile bool USBaudio_packet_available = false
 indicates availability of audio data
int USBaudio_index_buffer = 0
 indicates current position within USBaudio_buffer
uint16_t audio_prev_val = 0
 maintains previous speaker value until more data is available
const char * mainMenu []
 # Menu maps
const char * displayMenu []
 map for display submenu
const char * usbMenu []
 map for USB mode submenu
const char * outputMenu []
 map for output mode submenu
const char * editMenu []
 map for edit menu

Detailed Description

Header file containing functions prototypes, defines, and global variables.

K64F drum machine project, for ELEC2645

Author:
Peter J.G. Nye
Date:
May 2016

Definition in file main.h.

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