Curtis Mattull
basic functional test of FT810 LCD via SPI
main.cpp
- Committer:
- cpm219
- Date:
- 2016-07-21
- Revision:
- 17:f98333612db8
- Parent:
- 16:19ade236df07
- Child:
- 18:d1566d9b6ea1
File content as of revision 17:f98333612db8:
/*
Title Block
** Project : data logger: lcd power levels
** Engineers : Curtis Mattull
** Processor : MK20
** Version : 1.0
** Compiler : mbed
** Date/Time : 7/18/2016
** Abstract : This program functions as a simple data logger.
This program also serves as a learning experience with using touch screen LCDs.
modes of operation: (mcu never sleeps)
NOTE: comment line 12 of FT_LCD_TYPE.h unless using beyondtek display!
*/
#include "mbed.h"
#include "FT_Platform.h"
#include "stdio.h"
#include "float.h"
#include "SDFileSystem.h"
/************************
global
*************************/
//comment out for standard display
#define beyondtek
#define mask_present_state 0x38
#define mask_tag_input 0x7
#define mask_reg_tracker_tag 0xF
#define font_title 0x1F
#define font_button 0x1D
#define font_author 0x15
// create object for the LCD, handles all of the data passing and slave select commands (SPI)
FT800 TFT( D11, //mosi
D12, //miso
D13, //sclk
D9, //ss
D8, //intr
D14 ); // pd
DigitalIn card_present(D7); // digital in pin connected to the SD card detect pin input
AnalogIn analog_in9(A9); // analog 9 pin connected to the PSE input 4
AnalogIn analog_in8(A8); // analog 9 pin connected to the PFW input 5
AnalogIn analog_in3(A3); // analog 9 pin connected to the ITV1 input 10
AnalogIn analog_in2(A2); // analog 9 pin connected to the ITV2 input 11 from usb, starting at 1
/************************
function prototypes
*************************/
void Start_Screen(ft_char8_t *str);
int16_t collect_data(void);
void plot_data();
//for gui state machine
void main_menu(uint8_t tag); // main menu 0
void mode_a(uint8_t tag); // mode A 1
void mode_b(uint8_t tag); // mode B 2
void mode_c(uint8_t tag); // mode C 3
//for plot state machine
void plot_nothing(void);
void plot_square(void);
void plot_triangle(void);
void plot_sine(void);
/************************
function pointers
*************************/
void (*draw_screen[4])(uint8_t tag) = { main_menu, // 0
mode_a, // 1
mode_b, // 2
mode_c }; // 3
void (*plot[4])(void) = { plot_nothing, // 0
plot_square, // 1
plot_triangle, // 2
plot_sine }; // 3
/************************
lookup tables
*************************/
//gui menu state table
static const uint8_t state_lookup[32] = {0x0, 0x1, 0x2, 0x3, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x1, 0x1, 0x1,
0x2, 0x2, 0x2, 0x2, 0x0, 0x2, 0x2, 0x2, 0x3, 0x3, 0x3, 0x3, 0x0, 0x3, 0x3, 0x3,};
//
///* array index values: { 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
// 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31};
// */
static const uint8_t plot_lookup[32] = {0x0, 0x0, 0x2, 0x3, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x2, 0x3, 0x1, 0x0, 0x1, 0x1,
0x2, 0x2, 0x2, 0x3, 0x2, 0x0, 0x1, 0x2, 0x3, 0x3, 0x2, 0x3, 0x3, 0x0, 0x1, 0x3,};
//
///* array index values: { 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
// 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31};
//// //fallback gui menu state table
//static const uint8_t state_lookup[32] = {0x0, 0x1, 0x2, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
// 0x2, 0x2, 0x2, 0x2, 0x0, 0x0, 0x2, 0x2, 0x3, 0x3, 0x3, 0x3, 0x0, 0x3, 0x3, 0x3};
///* array index values: { 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
// 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31};
// */
static const int16_t square_wave_lookup[40] = { -100,-100,-100,-100,-100, 100,100,100,100,100,
-100,-100,-100,-100,-100, 100,100,100,100,100,
-100,-100,-100,-100,-100, 100,100,100,100,100,
-100,-100,-100,-100,-100, 100,100,100,100,100};
static const int16_t tri_wave_lookup[40] = { 100,0,-100,0, 100,0,-100,0,
100,0,-100,0, 100,0,-100,0,
100,0,-100,0, 100,0,-100,0,
100,0,-100,0, 100,0,-100,0,
100,0,-100,0, 100,0,-100,0};
static const int16_t sine_wave_lookup[40] = { 0, 16, 31, 45, 59, 71, 81, 89, 95, 99,
100, 99, 95, 89, 81, 71, 59, 45, 31, 16,
-0, -16, -31, -45, -59, -71, -81, -89, -95, -99,
-100, -99, -95, -89, -81, -71, -59, -45, -31, -16, };
/************************
global variables
*************************/
int16_t i =0;
uint8_t present_states = 0x0,
tags = 0x0,
combo_inputs = 0x0;
// data sample from ADC
int16_t data1[40] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
//pointer to data1 array
//int16_t *p = data1;
static const ft_char8_t text_menu[32]= {"Main Menu\0"};
static const ft_char8_t text_a[32]= {"Mode A\0"};
static const ft_char8_t text_b[32]= {"Mode B\0"};
static const ft_char8_t text_c[32]= {"Mode C\0"};
static const ft_char8_t text_back[32]= {"Back\0"};
static const ft_char8_t text_author[32]= {"by Curtis Mattull\0"};
/************************
main function:
-calibrate touch screen
-display welcome screen
-manages touch screen input, system states, and calls draw_screen functions
*************************/
int main()
{
uint8_t present_state = 0x0,
tag = 0x0,
combo_input = 0x0;
TFT.Calibrate();
TFT.Flush_Co_Buffer(); // Download the command list into fifo
TFT.WaitCmdfifo_empty(); // Wait till coprocessor completes the operation
// Start_Screen("gui by\0");
main_menu(0x0);
/* gui manager: -handles touch screen input -updates system state -calls draw screen function */
while(1)
{
tag = 0x0;
while(0x0 == tag)
{
tag = ((TFT.Rd32(REG_TRACKER)) & mask_reg_tracker_tag); //read tag register, update tag variable
}
combo_input = ( present_state << 3) + tag; // concatenate present_state with tag to form combo input
present_state = state_lookup[combo_input]; // based on present state and touch input, update present state
(*draw_screen[present_state])(tag); // use present_state as operand to draw screen function
TFT.Sleep(10); // wait 10ms for next check
}
return 0;
}
// end of main()
/************************
function: collect_data
description: store ADC samples
*************************/
void collect_data(int16_t *p)
{
for(i=0;i<400;i++)
{
//p points to data1 array
*(p +i) = square_wave_lookup[i];
}
}
/************************
function: main menu
description: draw main menu screen
*************************/
void main_menu(uint8_t tag)
{
TFT.Wr16(REG_PWM_DUTY, 100);
//start new display list
TFT.DLstart(); // start a new display command list
TFT.DL(CLEAR_COLOR_RGB(255,255,255)); // set the clear color to white
TFT.DL(CLEAR(1,1,1)); // clear buffers -> color buffer,stencil buffer, tag buffer
//buttons
TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
//button A
TFT.Track( 50, 165, 200, 150, 1); // track aree of button A
TFT.DL(TAG(1)); // assign TAG value 1 to "mode A" button
TFT.Button(50, 165, 200, 150, font_button, 0, text_a);
//button B
TFT.Track( 300, 165, 200, 150, 2); // track aree of button B
TFT.DL(TAG(2)); // assign TAG value 2 to "mode B" button
TFT.Button(300, 165, 200, 150, font_button, 0, text_b);
//button C
TFT.Track( 550, 165, 200, 150, 3); // track aree of button C
TFT.DL(TAG(3)); // assign TAG value 3 to "mode C" button
TFT.Button(550, 165, 200, 150, font_button, 0, text_c);
TFT.DL(TAG(0)); // assign TAG value 0 to everything else
//title text
TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
TFT.Text((TFT.DispWidth/2), TFT.DispHeight/8, font_title, OPT_CENTERX, text_menu); // draw Text with font 31
//author text
TFT.DL(COLOR_RGB(0x00, 0x00, 0x00));
TFT.Text((TFT.DispWidth*15/16)-5, 460, font_author, OPT_CENTERX, text_author); // draw Text with font 31
//display the screen
TFT.DL(DISPLAY()); // display the image
TFT.Swap(); // swap the current display list
TFT.Flush_Co_Buffer(); // download the command list into fifo
TFT.WaitCmdfifo_empty(); // wait till coprocessor completes the operation
}
//fallback mode_a
///************************
// function: mode_a
// description: draws mode a screen
//*************************/
//void mode_a(void)
//{
// TFT.Track( 50, 355, 100, 75, 4); // track aree of button back
//
// //start new display list
// TFT.DLstart(); // start a new display command list
// TFT.DL(CLEAR_COLOR_RGB(255,255,255)); // set the clear color to white
// TFT.DL(CLEAR(1,1,1)); // clear buffers -> color buffer,stencil buffer, tag buffer
//
// //back button
// TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
// TFT.DL(TAG(4));
// TFT.Button(50, 355, 100, 75, font_button, 0, text_back); // assign TAG value 4 to text_back button
//
// TFT.DL(TAG(0)); // assign TAG value 0 to everything else
//
// //title text
// TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
// TFT.Text((TFT.DispWidth/2), TFT.DispHeight/8, font_title, OPT_CENTERX, text_a); // draw Text with font 31
//
// //author text
// TFT.DL(COLOR_RGB(0x00, 0x00, 0x00));
// TFT.Text((TFT.DispWidth*15/16), 460, font_author, OPT_CENTERX, text_author); // draw Text with font 31
//
// //display the screen
// TFT.DL(DISPLAY()); // display the image
// TFT.Swap(); // swap the current display list
// TFT.Flush_Co_Buffer(); // download the command list into fifo
// TFT.WaitCmdfifo_empty(); // wait till coprocessor completes the operation
//
//}
/************************
function: mode_a
description: draws mode a screen
*************************/
void mode_a(uint8_t tag)
{
// collect_data(p);
combo_inputs = ( present_states << 3) + tag; // concatenate present_state with tag to form combo input
present_states = plot_lookup[combo_inputs]; // based on present state and touch input, update present state
//start new display list
TFT.DLstart(); // start a new display command list
TFT.DL(CLEAR_COLOR_RGB(255,255,255)); // set the clear color to white
TFT.DL(CLEAR(1,1,1)); // clear buffers -> color buffer,stencil buffer, tag buffer
TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
//back button
TFT.Track( 50, 355, 100, 75, 4); // track aree of button back
TFT.DL(TAG(4));
TFT.Button(50, 355, 100, 75, font_button, 4, text_back); // assign TAG value 4 to text_back button
//plot square button
TFT.Track( 200, 355, 100, 75, 6); // track aree of button square
TFT.DL(TAG(6));
TFT.Button(200, 355, 100, 75, font_button, 6, "square"); // assign TAG value 1 to text_back button//back button
//plot triangle button
TFT.Track( 350, 355, 100, 75, 2); // track aree of button triangle
TFT.DL(TAG(2));
TFT.Button(350, 355, 100, 75, font_button, 2, "triangle"); // assign TAG value 2 to text_back button//back button
//plot sine button
TFT.Track( 500, 355, 100, 75, 3); // track aree of button sine
TFT.DL(TAG(3));
TFT.Button(500, 355, 100, 75, font_button, 3, "sine"); // assign TAG value 3 to text_back button//back button
//plot nothing button
TFT.Track( 650, 355, 100, 75, 5); // track aree of button square
TFT.DL(TAG(5));
TFT.Button(650, 355, 100, 75, font_button, 5, "clear"); // assign TAG value 1 to text_back button//back button
TFT.DL(TAG(0)); // assign TAG value 0 to everything else
//border for plot
TFT.DL(COLOR_RGB(0x00,0x00,0x00));
TFT.DL(BEGIN(LINES));
TFT.DL(LINE_WIDTH(3 * 16));
TFT.DL(VERTEX2F(50*16,150*16));
TFT.DL(VERTEX2F(50*16,350*16));
TFT.DL(VERTEX2F(50*16,350*16));
TFT.DL(VERTEX2F(750*16,350*16));
TFT.DL(VERTEX2F(750*16,350*16));
TFT.DL(VERTEX2F(750*16,150*16));
TFT.DL(VERTEX2F(750*16,150*16));
TFT.DL(VERTEX2F(50*16,150*16));
TFT.DL(END());
//plot algorithm
TFT.DL( BEGIN(LINE_STRIP) );
TFT.DL(LINE_WIDTH(3 * 16));
(*plot[present_states])(); // use present_state as operand to draw screen function
//title text
TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
TFT.Text((TFT.DispWidth/2), TFT.DispHeight/8, font_title, OPT_CENTERX, text_a); // draw Text with font 31
//author text
TFT.DL(COLOR_RGB(0x00, 0x00, 0x00));
TFT.Text((TFT.DispWidth*15/16)-5, 460, font_author, OPT_CENTERX, text_author); // draw Text with font 31
//display the screen
TFT.DL(DISPLAY()); // display the image
TFT.Swap(); // swap the current display list
TFT.Flush_Co_Buffer(); // download the command list into fifo
TFT.WaitCmdfifo_empty(); // wait till coprocessor completes the operation
}
//fallback mode_b
///************************
// function: mode b
// description: draws mode b screen.
//*************************/
//void mode_b(void)
//{
//
// TFT.Track( 50, 355, 100, 75, 4); // track aree of button back
//
// //start new display list
// TFT.DLstart(); // start a new display command list
// TFT.DL(CLEAR_COLOR_RGB(255,255,255)); // set the clear color to white
// TFT.DL(CLEAR(1,1,1)); // clear buffers -> color buffer,stencil buffer, tag buffer
//
// //buttons
// TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
//
// TFT.DL(TAG(4));
// TFT.Button(50, 355, 100, 75, font_button, 0, text_back); // assign TAG value 4 to text_back button
//
// TFT.DL(TAG(0)); // assign TAG value 0 to everything else
//
//
// //title text
// TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
// TFT.Text((TFT.DispWidth/2), TFT.DispHeight/8, font_title, OPT_CENTERX, text_b); // draw Text with font 31
//
// //author text
// TFT.DL(COLOR_RGB(0x00, 0x00, 0x00));
// TFT.Text((TFT.DispWidth*15/16), 460, font_author, OPT_CENTERX, text_author); // draw Text with font 31
//
// //display the screen
// TFT.DL(DISPLAY()); // display the image
// TFT.Swap(); // swap the current display list
// TFT.Flush_Co_Buffer(); // download the command list into fifo
// TFT.WaitCmdfifo_empty(); // wait till coprocessor completes the operation
//}
/************************
function: mode b
description: draws mode b screen.
*************************/
void mode_b(uint8_t tag)
{
//start new display list
TFT.DLstart(); // start a new display command list
TFT.DL(CLEAR_COLOR_RGB(255,255,255)); // set the clear color to white
TFT.DL(CLEAR(1,1,1)); // clear buffers -> color buffer,stencil buffer, tag buffer
TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
//back button
TFT.Track( 50, 355, 100, 75, 4); // track aree of button back
TFT.DL(TAG(4));
TFT.Button(50, 355, 100, 75, font_button, 0, text_back); // assign TAG value 4 to text_back button
TFT.DL(TAG(0)); // assign TAG value 0 to everything else
//title text
TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
TFT.Text((TFT.DispWidth/2), TFT.DispHeight/8, font_title, OPT_CENTERX, text_b); // draw Text with font 31
//author text
TFT.DL(COLOR_RGB(0x00, 0x00, 0x00));
TFT.Text((TFT.DispWidth*15/16)-5, 460, font_author, OPT_CENTERX, text_author); // draw Text with font 31
//display the screen
TFT.DL(DISPLAY()); // display the image
TFT.Swap(); // swap the current display list
TFT.Flush_Co_Buffer(); // download the command list into fifo
TFT.WaitCmdfifo_empty(); // wait till coprocessor completes the operation
}
// fallback mode_c
///************************
// function: mode_c
// description: draws mode C screen
//*************************/
//void mode_c(void)
//{
//
// //start new display list
// TFT.DLstart(); // start a new display command list
// TFT.DL(CLEAR_COLOR_RGB(255,255,255)); // set the clear color to white
// TFT.DL(CLEAR(1,1,1)); // clear buffers -> color buffer,stencil buffer, tag buffer
//
// //buttons
// TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
//
// TFT.Track( 50, 355, 100, 75, 4); // track aree of button back
// TFT.DL(TAG(4));
// TFT.Button(50, 355, 100, 75, font_button, 0, text_back); // assign TAG value 4 to text_back button
//
// TFT.DL(TAG(0)); // assign TAG value 0 to everything else
//
//
// //title text
// TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
// TFT.Text((TFT.DispWidth/2), TFT.DispHeight/8, font_title, OPT_CENTERX, text_c); // draw Text with font 31
//
// //author text
// TFT.DL(COLOR_RGB(0x00, 0x00, 0x00));
// TFT.Text((TFT.DispWidth*15/16), 460, font_author, OPT_CENTERX, text_author); // draw Text with font 31
//
// //display the screen
// TFT.DL(DISPLAY()); // display the image
// TFT.Swap(); // swap the current display list
// TFT.Flush_Co_Buffer(); // download the command list into fifo
// TFT.WaitCmdfifo_empty(); // wait till coprocessor completes the operation
//}
/************************
function: mode_c
description: draws mode C screen
*************************/
void mode_c(uint8_t tag)
{
//start new display list
TFT.DLstart(); // start a new display command list
TFT.DL(CLEAR_COLOR_RGB(255,255,255)); // set the clear color to white
TFT.DL(CLEAR(1,1,1)); // clear buffers -> color buffer,stencil buffer, tag buffer
//back button
TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
TFT.Track( 50, 355, 100, 75, 4); // track aree of button back
TFT.DL(TAG(4));
TFT.Button(50, 355, 100, 75, font_button, 0, text_back); // assign TAG value 4 to text_back button
TFT.DL(TAG(0)); // assign TAG value 0 to everything else
//title text
TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4));
TFT.Text((TFT.DispWidth/2), TFT.DispHeight/8, font_title, OPT_CENTERX, text_c); // draw Text with font 31
//author text
TFT.DL(COLOR_RGB(0x00, 0x00, 0x00));
TFT.Text((TFT.DispWidth*15/16)-5, 460, font_author, OPT_CENTERX, text_author); // draw Text with font 31
//display the screen
TFT.DL(DISPLAY()); // display the image
TFT.Swap(); // swap the current display list
TFT.Flush_Co_Buffer(); // download the command list into fifo
TFT.WaitCmdfifo_empty(); // wait till coprocessor completes the operation
}
/************************
function: plot_nothing
description: clears plot area
*************************/
void plot_nothing(void)
{
TFT.DL(COLOR_RGB(0x00, 0x00, 0x00));
}
/************************
function: plot_square
description: plots square wave
*************************/
void plot_square(void)
{
TFT.DL(COLOR_RGB(0xFF, 0x00, 0x00));
for(i = 0;i<40;i++)
{
TFT.DL( VERTEX2F(50*16 +18*i*16, 250*16 + (square_wave_lookup[i])*16) );
}
}
/************************
function: plot_triangle
description: plots triangle wave
*************************/
void plot_triangle(void)
{
TFT.DL(COLOR_RGB(0x00, 0xFF, 0x00));
for(i = 0;i<40;i++)
{
TFT.DL( VERTEX2F(50*16 +18*i*16, 250*16 + (tri_wave_lookup[i])*16) );
}
}
/************************
function: plot_sine
description: plots sine wave
*************************/
void plot_sine(void)
{
TFT.DL(COLOR_RGB(0xFF, 0x00, 0xFF));
for(i = 0;i<40;i++)
{
TFT.DL( VERTEX2F(50*16 +18*i*16, 250*16 + (sine_wave_lookup[i])*16) );
}
}
/************************
function: Start_Screen
description: draws boot up screen as images are loaded from the sd card
*************************/
ft_void_t Start_Screen(ft_char8_t *str)
{
TFT.DLstart(); // start a new display command list
TFT.DL(CLEAR_COLOR_RGB(255,255,255)); // set the clear color to white
TFT.DL(CLEAR(1,1,1)); // clear buffers -> color buffer,stencil buffer, tag buffer
TFT.DL(COLOR_RGB(0x00, 0x7C, 0xC4)); // generate border in SMC blue, all functions are in 1/16 pixel format
TFT.DL(BEGIN(LINES));
TFT.DL(LINE_WIDTH(8 * 16));
TFT.DL(VERTEX2F(0*16,0*16));
TFT.DL(VERTEX2F(799*16,0*16));
TFT.DL(VERTEX2F(799*16,0*16));
TFT.DL(VERTEX2F(799*16,479*16));
TFT.DL(VERTEX2F(799*16,479*16));
TFT.DL(VERTEX2F(0*16,479*16));
TFT.DL(VERTEX2F(0*16,479*16));
TFT.DL(VERTEX2F(0*16,0*16));
TFT.DL(END());
TFT.Text((TFT.DispWidth/2), TFT.DispHeight/2, 31, OPT_CENTERX, str); // draw Text with font 31
TFT.Text((TFT.DispWidth/2), 350, 31, OPT_CENTERX, text_author); // draw Text with font 31
TFT.Spinner((TFT.DispWidth/2),TFT.DispHeight/4, 0,0); // draw a animated spinner
TFT.DL(DISPLAY()); // Display the image
TFT.Swap(); // Swap the current display list
TFT.Flush_Co_Buffer(); // Download the command list into fifo
TFT.WaitCmdfifo_empty(); // Wait till coprocessor completes the operation
TFT.Sleep(1000); // Wait 1s to show
}