David Smart
Signal Generator
Dependencies: IniManager RA8875 Watchdog mbed-rtos mbed
Fork of
speaker_demo_Analog
by 
jim hamblen
SignalGenDisplay.cpp
- Committer:
- WiredHome
- Date:
- 2017-01-13
- Revision:
- 1:dd07e1deec6c
- Child:
- 2:8f71b71fce1b
File content as of revision 1:dd07e1deec6c:
#include "SignalGenDisplay.h"
#include "rtos.h"
#include "IniManager.h"
extern INI ini;
// ##### Main Page #############################################################
//
// +---------------------------------------------------------------------------+
// | +------------------------------------------+ Progam Name and version |
// | | | Manufacturer name |
// | | | |
// | | | [ Text Entry Box ] |
// | | Scope Area | +------------------------+ |
// | | | | | |
// | | | | | |
// | | | | | |
// | | | | | |
// | | | | | |
// | | | | Keypad Area | |
// | +------------------------------------------+ | | |
// | | | |
// | [duty cycle] [frequency] [amplitude] | | |
// | | | |
// | [ ... ] [period ] [offset ] | | |
// | | | |
// | [ ] [ ] [ ] [ ] [ ] | | |
// | [Sine ] [Square] [Triangle] [Sawtooth] [User] +------------------------+ |
// +---------------------------------------------------------------------------+
#define UI_BackColor RGB(8,8,8)
const rect_t UI_DATA_ENTRY = {300,45, 475,65};
const rect_t UI_SCOPE_RECT = {4,5, 290,160};
#define UI_ScopeBackColor RGB(0,0,0)
#define UI_ScopeFrameColor RGB(255,255,255)
#define SC_LEFT_MARGIN 10
#define SC_TOP_MARGIN 20
#define SC_RIGHT_MARGIN 30
#define SC_BOT_MARGIN 30
#define WaveOutlineColor RGB(16,16,32)
const rect_t Parameters[] = {
{4,170, 60,190}, // 'd'uty cycle
{90,170, 186,190}, // 'f'requency
{90,200, 186,220}, // 'p'eriod
{230,170, 290,190}, // 'v'oltage
{230,200, 290,220} // 'o'ffset
};
const int ParameterCount = sizeof(Parameters)/sizeof(Parameters[0]);
const char ParameterKeys[] = { 'd', 'f', 'p', 'v', 'o' };
#define UI_DutyColor Magenta
#define UI_FreqColor BrightRed
#define UI_VP2PColor DarkBrown
#define UI_VOffsetColor Green
#define UI_BUTTON_FACE_UP White
#define UI_BUTTON_FACE_DN RGB(255,92,92)
#define UI_BUTTON_SHADOW RGB(128,0,0)
#define UI_BUTTON_FACE_DISABLED RGB(24,24,24)
#define UI_BUTTON_SHADOW_DISABLED RGB(32,0,0)
const rect_t UI_PROD_RECT = {298,3, 479,40};
#define UI_ProductNameColor UI_BUTTON_FACE_DN // RGB(192,192,192)
#define PI 3.1415
#define BTN_W 54
#define BTN_H 35
#define BTN_S 5 // space
#define BTN_MODE_X 2
#define BTN_MODE_Y 230
#define BTN_KEYP_X 300
#define BTN_KEYP_Y 70
const rect_t NavToSettings = { 4,200, 60,220 };
const rect_t UI_Buttons[] = {
{ BTN_MODE_X+0*(BTN_W+BTN_S),BTN_MODE_Y, BTN_MODE_X+0*(BTN_W+BTN_S)+BTN_W,BTN_MODE_Y+BTN_H },
{ BTN_MODE_X+1*(BTN_W+BTN_S),BTN_MODE_Y, BTN_MODE_X+1*(BTN_W+BTN_S)+BTN_W,BTN_MODE_Y+BTN_H },
{ BTN_MODE_X+2*(BTN_W+BTN_S),BTN_MODE_Y, BTN_MODE_X+2*(BTN_W+BTN_S)+BTN_W,BTN_MODE_Y+BTN_H },
{ BTN_MODE_X+3*(BTN_W+BTN_S),BTN_MODE_Y, BTN_MODE_X+3*(BTN_W+BTN_S)+BTN_W,BTN_MODE_Y+BTN_H },
{ BTN_MODE_X+4*(BTN_W+BTN_S),BTN_MODE_Y, BTN_MODE_X+4*(BTN_W+BTN_S)+BTN_W,BTN_MODE_Y+BTN_H },
};
const int ButtonCount = sizeof(UI_Buttons)/sizeof(UI_Buttons[0]);
SignalGenDisplay::SG_Mode UI_ModeList[] = {
SignalGenDisplay::SG_SINE,
SignalGenDisplay::SG_SQUARE,
SignalGenDisplay::SG_TRIANGLE,
SignalGenDisplay::SG_SAWTOOTH,
SignalGenDisplay::SG_USER,
};
const char ModeKeys[] = { 'S','Q','T','W','U' };
const rect_t UI_Keypad[] = {
{BTN_KEYP_X+0*(BTN_W+BTN_S),BTN_KEYP_Y+0*(BTN_H+BTN_S), BTN_KEYP_X+0*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+0*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+1*(BTN_W+BTN_S),BTN_KEYP_Y+0*(BTN_H+BTN_S), BTN_KEYP_X+1*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+0*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+2*(BTN_W+BTN_S),BTN_KEYP_Y+0*(BTN_H+BTN_S), BTN_KEYP_X+2*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+0*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+0*(BTN_W+BTN_S),BTN_KEYP_Y+1*(BTN_H+BTN_S), BTN_KEYP_X+0*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+1*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+1*(BTN_W+BTN_S),BTN_KEYP_Y+1*(BTN_H+BTN_S), BTN_KEYP_X+1*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+1*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+2*(BTN_W+BTN_S),BTN_KEYP_Y+1*(BTN_H+BTN_S), BTN_KEYP_X+2*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+1*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+0*(BTN_W+BTN_S),BTN_KEYP_Y+2*(BTN_H+BTN_S), BTN_KEYP_X+0*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+2*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+1*(BTN_W+BTN_S),BTN_KEYP_Y+2*(BTN_H+BTN_S), BTN_KEYP_X+1*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+2*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+2*(BTN_W+BTN_S),BTN_KEYP_Y+2*(BTN_H+BTN_S), BTN_KEYP_X+2*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+2*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+0*(BTN_W+BTN_S),BTN_KEYP_Y+3*(BTN_H+BTN_S), BTN_KEYP_X+0*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+3*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+1*(BTN_W+BTN_S),BTN_KEYP_Y+3*(BTN_H+BTN_S), BTN_KEYP_X+1*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+3*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+2*(BTN_W+BTN_S),BTN_KEYP_Y+3*(BTN_H+BTN_S), BTN_KEYP_X+2*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+3*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+0*(BTN_W+BTN_S),BTN_KEYP_Y+4*(BTN_H+BTN_S), BTN_KEYP_X+0*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+4*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+1*(BTN_W+BTN_S),BTN_KEYP_Y+4*(BTN_H+BTN_S), BTN_KEYP_X+1*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+4*(BTN_H+BTN_S)+BTN_H },
{BTN_KEYP_X+2*(BTN_W+BTN_S),BTN_KEYP_Y+4*(BTN_H+BTN_S), BTN_KEYP_X+2*(BTN_W+BTN_S)+BTN_W,BTN_KEYP_Y+4*(BTN_H+BTN_S)+BTN_H },
};
const int KeypadCount = sizeof(UI_Keypad)/sizeof(UI_Keypad[0]);
const char UI_KeyLabels[] = {
'7', '8', '9',
'4', '5', '6',
'1', '2', '3',
'0', '.', '-',
'\x1F', '\x1E', '\xB6',
};
const char KeyPadKeys[] = { '7', '8', '9', '4', '5', '6', '1', '2', '3',
'0', '.', '-', '<', '>', '\n' };
// ##### Settings #############################################################
//
// +---------------------------------------------------------------------------+
// | Progam Name and version |
// | Manufacturer name |
// | |
// | |
// | |
// | |
// | +--------+ |
// | | | |
// | | | |
// | | | |
// | | | |
// | | | |
// | | | |
// | |--------| |
// | | | |
// | [ ... ] | | |
// | | | |
// | | | |
// | +--------+ |
// +---------------------------------------------------------------------------+
const point_t suncenter = { 450,65 };
const rect_t sunray[] = {
{ 450-2,65-25, 450+2,65+25 },
{ 450-25,65-2, 450+25,65+2 }
};
const rect_t sungraph = { 450-20,100+0, 450+20,265+0 };
const rect_t inrgraph = { 450-18,100+2, 450+18,265-2 };
template <typename T> int sgn(T val) {
return (T(0) < val) - (val < T(0));
}
char SignalGenDisplay::GetTouchEvent(void) {
TouchCode_t touch;
touch = lcd->TouchPanelReadable(); // any touch to report?
if (touch) {
uint8_t id = lcd->TouchID(0); // 'id' tracks the individual touches
TouchCode_t ev = lcd->TouchCode(0); // 'ev'ent indicates no_touch, touch, held, release, ...
point_t point = lcd->TouchCoordinates(0); // and of course the (x,y) coordinates
if (ev == touch) {
timer.start();
timer.reset();
}
if ((ev == release) || (ev == held && timer.read_ms() > 250)) {
timer.reset();
switch (vis) {
case VS_MainScreen:
printf("touch [vis: %d] (%d,%d)\r\n", vis, point.x, point.y);
// Mode Keys touch
for (int i=0; i<ButtonCount; i++) {
if (lcd->Intersect(UI_Buttons[i], point)) {
return ModeKeys[i];
}
}
// Parameters
for (int i=0; i<ParameterCount; i++) {
if (lcd->Intersect(Parameters[i], point)) {
return ParameterKeys[i];
}
}
// Keypad
for (int i=0; i<KeypadCount; i++) {
if (lcd->Intersect(UI_Keypad[i], point)) {
return KeyPadKeys[i];
}
}
if (lcd->Intersect(NavToSettings, point)) {
printf("Nav\r\n");
vis = VS_Settings;
Init();
while (lcd->TouchPanelReadable())
;
Thread::wait(100);
}
break;
case VS_Settings:
Thread::wait(20);
printf("touch [VIS: %d\r\n", vis);
if (lcd->Intersect(sungraph, point)) {
float bl = (float)(sungraph.p2.y - point.y)/(sungraph.p2.y - sungraph.p1.y);
lcd->Backlight(rangelimit(bl, 0.1, 1.0));
ShowBrightnessSetting();
}
if (lcd->Intersect(NavToSettings, point)) {
// Save settings
char buf[20];
snprintf(buf, sizeof(buf), "%d", lcd->GetBacklight_u8());
ini.WriteString("Settings", "Backlight", buf);
// Switch to main screen
vis = VS_MainScreen;
Init();
while (lcd->TouchPanelReadable())
;
Thread::wait(100);
ShowMenu();
}
break;
}
}
}
return 0;
}
SignalGenDisplay::SignalGenDisplay(RA8875 * _lcd, SignalGenerator * _signal,
const char * _ProgName, const char * _Manuf, const char * _Ver, const char * _Build) :
lcd(_lcd), signal(_signal), ProgName(_ProgName), Manuf(_Manuf), Ver(_Ver), Build(_Build) {
vis = VS_MainScreen;
}
SignalGenDisplay::~SignalGenDisplay() {
}
void SignalGenDisplay::Init() {
switch (vis) {
case VS_MainScreen:
lcd->background(UI_BackColor);
lcd->cls(1);
lcd->SelectDrawingLayer(0);
// Clear Screen
lcd->SetLayerMode(RA8875::ShowLayer0);
// Product Info
lcd->foreground(UI_ProductNameColor);
ShowProductInfo();
ClearScope();
// Some defaults for testing
SetDutyCycle(30);
SetFrequency(1230.0);
SetVoltagePeakToPeak(3.0);
SetVoltageOffset(1.50);
resetDataEntry();
SelectWaveformMode(SignalGenDisplay::SG_SINE);
DrawKeypadEnabled(false);
DrawNavGadget();
break;
case VS_Settings:
lcd->background(UI_BackColor);
lcd->cls(2);
lcd->SelectDrawingLayer(1);
lcd->SetLayerMode(RA8875::ShowLayer1);
lcd->foreground(UI_ProductNameColor);
ShowProductInfo();
ShowBrightnessSetting();
DrawNavGadget();
break;
}
}
void SignalGenDisplay::DrawNavGadget(void) {
lcd->fillrect(NavToSettings, Black);
lcd->SetTextCursor(NavToSettings.p1.x+1, NavToSettings.p1.y+1);
lcd->foreground(White);
lcd->background(Black);
lcd->puts(" ...");
}
void SignalGenDisplay::ShowProductInfo(void) {
rect_t r = UI_PROD_RECT;
lcd->window(r);
lcd->SetTextCursor(r.p1.x, r.p1.y);
lcd->printf("%s v%s", ProgName, Ver);
lcd->SetTextCursor(r.p1.x, r.p1.y+16);
lcd->printf("by %s", Manuf);
lcd->window();
}
void SignalGenDisplay::ShowBrightnessSetting(void) {
// Sunbeam
lcd->fillrect(sunray[0], White);
lcd->fillrect(sunray[1], White);
lcd->fillcircle(suncenter, 18, UI_BackColor);
lcd->fillcircle(suncenter, 15, White);
lcd->rect(sungraph, Blue);
float bl = lcd->GetBacklight();
lcd->fillrect(inrgraph, UI_BackColor);
lcd->fillrect(inrgraph.p1.x,inrgraph.p2.y, inrgraph.p2.x, inrgraph.p2.y - bl * (inrgraph.p2.y - inrgraph.p1.y), White);
}
SignalGenDisplay::SG_Changes SignalGenDisplay::Poll(char c) {
SG_Changes ret = SG_NONE;
if (!c) {
c = GetTouchEvent();
}
if (c) {
printf("%02X: EntryMd: %d, textLen: %d [%s] VIS: %d\r\n", c, EntryMd, textLen, textBuffer, vis);
}
/// - 'd' duty cycle entry
/// - 'f' frequency entry
/// - 'p' period entry
/// - 'v' voltage entry
/// - 'o' offset voltage entry
/// - '0'-'9','.' numeric entry
/// - <enter> complete numeric entry
/// - <esc> abandon numeric entry
/// - <nul> do nothing, just poll
switch (c) {
case '?':
ShowMenu();
break;
case 'S':
SelectWaveformMode(SG_SINE);
signal->SetSignalFrequency(SignalGenerator::SinusSignal, frequency);
//ret = SG_SINE;
break;
case 'Q':
SelectWaveformMode(SG_SQUARE);
signal->SetSignalFrequency(SignalGenerator::SquareSignal, frequency);
//ret = SG_SQUARE;
break;
case 'T':
SelectWaveformMode(SG_TRIANGLE);
signal->SetSignalFrequency(SignalGenerator::TriangleSignal, frequency);
//ret = SG_TRIANGLE;
break;
case 'W':
SelectWaveformMode(SG_SAWTOOTH);
signal->SetSignalFrequency(SignalGenerator::SawtoothSignal, frequency);
//ret = SG_SAWTOOTH;
break;
case 'U':
SelectWaveformMode(SG_USER);
//ret = SG_USER;
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case '.':
case '-':
if (EntryMd) {
if (textLen<8) {
textBuffer[textLen++] = c;
textBuffer[textLen] = '\0';
updateTextWindow();
}
}
break;
case '\x08':
if (EntryMd) {
if (textLen) {
textLen--;
textBuffer[textLen] = '\0';
updateTextWindow();
}
}
break;
case '\x1B':
textBuffer[0] = '\0';
textLen = 0;
EntryMd = SG_NONE;
resetDataEntry();
break;
case '\r':
case '\n':
if (EntryMd) {
if (strlen(textBuffer)) {
switch (EntryMd) {
case SG_DUTY:
SetDutyCycle(atof(textBuffer));
break;
case SG_FREQ:
SetFrequency(atof(textBuffer));
break;
case SG_PERI:
SetPeriod(atof(textBuffer));
break;
case SG_VOLT:
SetVoltagePeakToPeak(atof(textBuffer));
break;
case SG_OFFS:
SetVoltageOffset(atof(textBuffer));
break;
default:
break;
}
}
EntryMd = SG_NONE;
resetDataEntry();
}
break;
case '>':
switch (EntryMd) {
case SG_DUTY:
SetDutyCycle(dutycycle + 1.0);
break;
case SG_FREQ:
SetFrequency(frequency + 1.0);
break;
case SG_PERI:
SetPeriod(1/frequency + 0.001);
break;
case SG_VOLT:
SetVoltagePeakToPeak(voltage + 0.1);
break;
case SG_OFFS:
SetVoltageOffset(offset + 0.01);
break;
default:
break;
}
break;
case '<':
switch (EntryMd) {
case SG_DUTY:
SetDutyCycle(dutycycle - 1.0);
break;
case SG_FREQ:
SetFrequency(frequency - 1.0);
break;
case SG_PERI:
SetPeriod(1/frequency - 0.001);
break;
case SG_VOLT:
SetVoltagePeakToPeak(voltage - 0.1);
break;
case SG_OFFS:
SetVoltageOffset(offset - 0.01);
break;
default:
break;
}
break;
case 'd':
if (EntryMd != SG_DUTY) {
resetDataEntry();
EntryMd = SG_DUTY;
DrawKeypadEnabled(true);
updateDutyCycle();
} else {
EntryMd = SG_NONE;
resetDataEntry();
}
break;
case 'f':
if (EntryMd != SG_FREQ) {
resetDataEntry();
EntryMd = SG_FREQ;
DrawKeypadEnabled(true);
updateFrequency();
} else {
EntryMd = SG_NONE;
resetDataEntry();
}
break;
case 'p':
if (EntryMd != SG_PERI) {
resetDataEntry();
EntryMd = SG_PERI;
DrawKeypadEnabled(true);
updatePeriod();
} else {
EntryMd = SG_NONE;
resetDataEntry();
}
break;
case 'v':
if (EntryMd != SG_VOLT) {
resetDataEntry();
EntryMd = SG_VOLT;
DrawKeypadEnabled(true);
updateVoltage();
} else {
EntryMd = SG_NONE;
resetDataEntry();
}
break;
case 'o':
if (EntryMd != SG_OFFS) {
resetDataEntry();
EntryMd = SG_OFFS;
DrawKeypadEnabled(true);
updateOffset();
} else {
EntryMd = SG_NONE;
resetDataEntry();
}
break;
default:
break;
}
return ret;
}
bool SignalGenDisplay::SelectWaveformMode(SG_Mode _mode) {
if (/* _mode >= SG_SINE && */ _mode <= SG_USER) {
mode= _mode;
for (int i=0; i<ButtonCount; i++) {
DrawButton(UI_Buttons[i], (UI_ModeList[i] == mode) ? true : false, UI_ModeList[i], true);
}
UpdateScope();
return true;
} else {
return false;
}
}
bool SignalGenDisplay::SetDutyCycle(float _dutyCycle) {
if (_dutyCycle >= 5 && _dutyCycle <= 95) {
dutycycle = _dutyCycle;
updateDutyCycle();
UpdateScope();
return true;
} else {
return false;
}
}
bool SignalGenDisplay::SetFrequency(float _frequency) {
printf("-> SetFrequency(%f)\r\n", _frequency);
if (_frequency >= 1.0 && _frequency <= 1.0E6) {
frequency = _frequency;
updateFrequency();
updatePeriod();
UpdateScope();
printf(" end SetFrequency\r\n");
return true;
} else {
printf(" end SetFrequency - out of range\r\n");
return false;
}
}
bool SignalGenDisplay::SetPeriod(float _period) {
if (_period >= 1.0E-6 && _period <= 1.0) {
frequency = 1/_period;
updatePeriod();
updateFrequency();
UpdateScope();
return true;
} else {
return false;
}
}
bool SignalGenDisplay::SetVoltagePeakToPeak(float _voltage) {
if (_voltage >= 0.0 && _voltage <= 3.3) {
voltage = _voltage;
updateVoltage();
UpdateScope();
return true;
} else {
return false;
}
}
bool SignalGenDisplay::SetVoltageOffset(float _voltage) {
if (_voltage >= -1.65 && _voltage <= 1.65) {
if (abs(_voltage) < 0.008) // if binary precision slips it, fix it
_voltage = 0.0;
offset = _voltage;
updateOffset();
UpdateScope();
return true;
} else {
return false;
}
}
// ######################## Private Methods past here #######################
void SignalGenDisplay::UpdateScope(void) {
printf("-> UpdateScope()\r\n");
ClearScope();
rect_t r;
r.p1.x = UI_SCOPE_RECT.p1.x + SC_LEFT_MARGIN;
r.p1.y = UI_SCOPE_RECT.p1.y + SC_TOP_MARGIN;
r.p2.x = UI_SCOPE_RECT.p2.x - SC_RIGHT_MARGIN;
r.p2.y = UI_SCOPE_RECT.p2.y - SC_BOT_MARGIN;
lcd->rect(r, WaveOutlineColor);
// Draw the Peak to Peak markers
lcd->line(r.p1.x,r.p1.y, r.p2.x+3*SC_RIGHT_MARGIN/4,r.p1.y, UI_VP2PColor);
lcd->line(r.p1.x,r.p2.y, r.p2.x+3*SC_RIGHT_MARGIN/4,r.p2.y, UI_VP2PColor);
lcd->line(r.p2.x+3*SC_RIGHT_MARGIN/4-3,r.p1.y, r.p2.x+3*SC_RIGHT_MARGIN/4-3,r.p2.y, UI_VP2PColor);
lcd->filltriangle(
r.p2.x+3*SC_RIGHT_MARGIN/4-3,r.p1.y,
r.p2.x+3*SC_RIGHT_MARGIN/4-3+2,r.p1.y+3,
r.p2.x+3*SC_RIGHT_MARGIN/4-3-2,r.p1.y+3,
UI_VP2PColor);
lcd->filltriangle(
r.p2.x+3*SC_RIGHT_MARGIN/4-3,r.p2.y,
r.p2.x+3*SC_RIGHT_MARGIN/4-3+2,r.p2.y-3,
r.p2.x+3*SC_RIGHT_MARGIN/4-3-2,r.p2.y-3,
UI_VP2PColor);
// Draw the offset voltage markers
loc_t y = (r.p1.y + r.p2.y)/2;
dim_t w = (r.p2.x + SC_RIGHT_MARGIN/3 - r.p1.x) / 35;
dim_t h = (r.p2.y - r.p1.y);
for (int i=0; i<=35+1; i++) {
if ((i & 1) == 0) {
lcd->line(r.p1.x + i * w,y, r.p1.x + (i+1) * w, y, UI_VOffsetColor);
}
}
switch (sgn(offset)) {
default:
case 0:
break;
case -1:
case 1:
lcd->line(r.p2.x+SC_RIGHT_MARGIN/3-3,y+sgn(offset)*(h/2+7), r.p2.x+SC_RIGHT_MARGIN/3-3,y, UI_VOffsetColor);
lcd->filltriangle(
r.p2.x+SC_RIGHT_MARGIN/3-3,y,
r.p2.x+SC_RIGHT_MARGIN/3-3+2,y+sgn(offset)*3,
r.p2.x+SC_RIGHT_MARGIN/3-3-2,y+sgn(offset)*3,
UI_VOffsetColor);
if (abs(offset) > voltage/2)
lcd->line(r.p1.x,y+sgn(offset)*(h/2+7), r.p2.x+SC_RIGHT_MARGIN/3,y+sgn(offset)*(h/2+7), UI_VOffsetColor);
else
lcd->line(r.p1.x,y+(offset/voltage)*h, r.p2.x+SC_RIGHT_MARGIN/3,y+(offset/voltage)*h, UI_VOffsetColor);
break;
}
// Draw the Frequency marker
w = r.p2.x - r.p1.x;
dim_t dc = dutycycle/100.0 * 1*w/2;
lcd->line(r.p1.x,r.p1.y, r.p1.x,r.p2.y+3*SC_BOT_MARGIN/4, UI_FreqColor);
lcd->line(r.p1.x+1*w/2,r.p1.y, r.p1.x+1*w/2,r.p2.y+3*SC_BOT_MARGIN/4, UI_FreqColor);
lcd->line(r.p1.x,r.p2.y+3*SC_BOT_MARGIN/4-3, r.p1.x+1*w/2,r.p2.y+3*SC_BOT_MARGIN/4-3, UI_FreqColor);
lcd->filltriangle(
r.p1.x+0,r.p2.y+3*SC_BOT_MARGIN/4-3,
r.p1.x+3,r.p2.y+3*SC_BOT_MARGIN/4-3-2,
r.p1.x+3,r.p2.y+3*SC_BOT_MARGIN/4-3+2,
UI_FreqColor);
lcd->filltriangle(
r.p1.x+1*w/2-0,r.p2.y+3*SC_BOT_MARGIN/4-3,
r.p1.x+1*w/2-3,r.p2.y+3*SC_BOT_MARGIN/4-3-2,
r.p1.x+1*w/2-3,r.p2.y+3*SC_BOT_MARGIN/4-3+2,
UI_FreqColor);
// Draw the Duty Cycle markers
lcd->line(r.p1.x,r.p1.y, r.p1.x,r.p2.y+2*SC_BOT_MARGIN/4, UI_DutyColor);
lcd->line(r.p1.x + dc,r.p1.y, r.p1.x + dc,r.p2.y+2*SC_BOT_MARGIN/4, UI_DutyColor);
point_t p;
p.x = r.p1.x;
p.y = r.p2.y+2*SC_BOT_MARGIN/4-3;
lcd->line(p.x,p.y, p.x+dc,p.y, UI_DutyColor);
lcd->filltriangle(
p.x,p.y,
p.x+3,p.y-2,
p.x+3,p.y+2,
UI_DutyColor);
p.x = r.p1.x + dc;
lcd->filltriangle(
p.x,p.y,
p.x-3,p.y-2,
p.x-3,p.y+2,
UI_DutyColor);
DrawWaveform(r, mode, White);
printf(" end UpdateScope()\r\n");
}
// ++ +----+ + +
// . . | | / \ /|
// . . | | | / \ / / |
// . | | \ / / |
// ++ +----+ + + +
//
void SignalGenDisplay::DrawWaveform(rect_t r, SG_Mode mode, color_t color, float dutycycleOverride) {
loc_t x,y;
loc_t y0 = (r.p1.y + r.p2.y)/2;
dim_t w = r.p2.x - r.p1.x;
dim_t dc = ((dutycycleOverride >= 5.0) ? dutycycleOverride : dutycycle)/100.0 * 1*w/2;
dim_t a = (r.p2.y - r.p1.y)/2;
float v;
switch (mode) {
case SG_SINE:
for (int cycle=0; cycle<2; cycle++) {
for (x=0; x<=dc; x++) {
v = offset + voltage/2 * sin(x * 1 * PI / dc);
v = rangelimit(v, SG_MIN_V, SG_MAX_V);
y = r.p2.y - 2 * a * v / SG_AOUT_FS;
lcd->pixel(r.p1.x + cycle * w/2 + x, y, color);
}
for (x=0; x<=(w/2-dc); x++) {
v = offset - voltage/2 * sin(x * 1 * PI / (w/2-dc));
v = rangelimit(v, SG_MIN_V, SG_MAX_V);
y = r.p2.y - 2 * a * v / SG_AOUT_FS;
lcd->pixel(r.p1.x + cycle * w/2 + dc + x, y, color);
}
}
break;
case SG_SQUARE:
for (int cycle=0; cycle<2; cycle++) {
lcd->line(r.p1.x+cycle*w/2+0*w/8, y0, r.p1.x+cycle*w/2+0*w/8, y0-a, color); // rise
lcd->line(r.p1.x+cycle*w/2+0*w/8, y0-a, r.p1.x+cycle*w/2+dc, y0-a, color); // horz
lcd->line(r.p1.x+cycle*w/2+dc, y0-a, r.p1.x+cycle*w/2+dc, y0+a, color); // fall
lcd->line(r.p1.x+cycle*w/2+dc, y0+a, r.p1.x+cycle*w/2+4*w/8, y0+a, color); // horz
lcd->line(r.p1.x+cycle*w/2+4*w/8, y0+a, r.p1.x+cycle*w/2+4*w/8, y0, color); // rise
}
break;
case SG_TRIANGLE:
for (int cycle=0; cycle<2; cycle++) {
lcd->line(r.p1.x+cycle*w/2+0*w/8, y0+0, r.p1.x+cycle*w/2+dc/2, y0-a, color); // rise 2
lcd->line(r.p1.x+cycle*w/2+dc/2, y0-a, r.p1.x+cycle*w/2+dc/1, y0, color); // fall 1
lcd->line(r.p1.x+cycle*w/2+dc/1, y0, r.p1.x+cycle*w/2+(w/2+dc)/2, y0+a, color); // fall 2
lcd->line(r.p1.x+cycle*w/2+(w/2+dc)/2, y0+a, r.p1.x+cycle*w/2+4*w/8, y0, color); // rise 1
}
break;
case SG_SAWTOOTH:
for (int cycle=0; cycle<2; cycle++) {
lcd->line(r.p1.x+cycle*w/2+0*w/8+0, y0+a, r.p1.x+cycle*w/2+dc, y0, color);
lcd->line(r.p1.x+cycle*w/2+dc, y0, r.p1.x+cycle*w/2+4*w/8-1, y0-a, color);
lcd->line(r.p1.x+cycle*w/2+4*w/8-1, y0-a, r.p1.x+cycle*w/2+4*w/8, y0+a, color);
}
break;
case SG_USER:
lcd->line(r.p1.x, y0-1, r.p1.x+w, y0-1, color);
lcd->line(r.p1.x, y0-0, r.p1.x+w, y0-0, color);
lcd->line(r.p1.x, y0+1, r.p1.x+w, y0+1, color);
lcd->rect(r.p1.x+5*w/8, y0-a/4, r.p1.x+7*w/8, y0+a/4, color);
break;
}
}
void SignalGenDisplay::ClearScope(void) {
// Scope area
rect_t r = UI_SCOPE_RECT;
lcd->fillrect(r, UI_ScopeBackColor);
lcd->rect(r, UI_ScopeFrameColor);
}
void SignalGenDisplay::updateDutyCycle(void) {
rect_t r = Parameters[0]; // UI_DUTY_CYCLE_RECT;
color_t fcolor, bcolor;
if (EntryMd != SG_DUTY) {
fcolor = UI_DutyColor;
bcolor = UI_ScopeBackColor;
} else {
fcolor = UI_ScopeBackColor;
bcolor = UI_DutyColor;
}
lcd->fillrect(r, bcolor);
lcd->foreground(fcolor);
lcd->background(bcolor);
lcd->SetTextCursor(r.p1.x+1, r.p1.y+1);
lcd->printf("%3.0f %%", dutycycle);
}
void SignalGenDisplay::updateFrequency(void) {
rect_t r = Parameters[1]; // UI_FREQ_RECT;
color_t fcolor, bcolor;
if (EntryMd != SG_FREQ) {
fcolor = UI_FreqColor;
bcolor = UI_ScopeBackColor;
} else {
fcolor = UI_ScopeBackColor;
bcolor = UI_FreqColor;
}
lcd->fillrect(r, bcolor);
lcd->foreground(fcolor);
lcd->background(bcolor);
lcd->SetTextCursor(r.p1.x+1, r.p1.y+1);
printf("EntryMode: %d, bg: %08X, fg: %08X\r\n", EntryMd, bcolor, fcolor);
if (frequency >= 1000.0)
lcd->printf("%8.3f kHz", frequency/1000);
else
lcd->printf("%8.3f Hz ", frequency);
}
void SignalGenDisplay::updatePeriod(void) {
float period = 1/frequency;
rect_t r = Parameters[2]; // UI_PERIOD_RECT;
color_t fcolor, bcolor;
if (EntryMd != SG_PERI) {
fcolor = UI_FreqColor;
bcolor = UI_ScopeBackColor;
} else {
fcolor = UI_ScopeBackColor;
bcolor = UI_FreqColor;
}
lcd->fillrect(r, bcolor);
lcd->foreground(fcolor);
lcd->background(bcolor);
lcd->SetTextCursor(r.p1.x+1, r.p1.y+1);
if (period < 0.001)
lcd->printf("%8.3f uS", period * 1000000);
else
lcd->printf("%8.3f mS", period * 1000);
}
void SignalGenDisplay::updateVoltage(void) {
rect_t r = Parameters[3]; // UI_VP2P_RECT;
color_t fcolor, bcolor;
if (EntryMd != SG_VOLT) {
fcolor = UI_VP2PColor;
bcolor = UI_ScopeBackColor;
} else {
fcolor = UI_ScopeBackColor;
bcolor = UI_VP2PColor;
}
lcd->fillrect(r, bcolor);
lcd->foreground(fcolor);
lcd->background(bcolor);
lcd->SetTextCursor(r.p1.x+1, r.p1.y+1);
lcd->printf("%5.1f v", voltage);
}
void SignalGenDisplay::updateOffset(void) {
rect_t r = Parameters[4]; // UI_VOFFSET_RECT;
color_t fcolor, bcolor;
if (EntryMd != SG_OFFS) {
fcolor = UI_VOffsetColor;
bcolor = UI_ScopeBackColor;
} else {
fcolor = UI_ScopeBackColor;
bcolor = UI_VOffsetColor;
}
lcd->fillrect(r, bcolor);
lcd->foreground(fcolor);
lcd->background(bcolor);
lcd->SetTextCursor(r.p1.x+1, r.p1.y+1);
lcd->printf("%+4.2f v", offset);
}
void SignalGenDisplay::DrawKeypadEnabled(bool enable) {
for (int i=0; i<KeypadCount; i++) {
DrawButton(UI_Keypad[i], false, SG_KEYPAD, enable, i);
}
}
void SignalGenDisplay::DrawButton(rect_t r, bool pressed, SG_Mode mode, bool enable, int label) {
rect_t wave;
color_t buttonface = UI_BUTTON_FACE_DISABLED;
color_t buttonshadow = UI_BUTTON_SHADOW_DISABLED;
//lcd->fillrect(r, UI_ScopeBackColor);
if (pressed) {
if (enable) {
buttonface = UI_BUTTON_FACE_DN;
buttonshadow = UI_BUTTON_SHADOW;
}
lcd->fillrect(r, buttonface);
lcd->line(r.p1.x+0,r.p1.y+0, r.p2.x+0,r.p1.y+0, buttonshadow); // top border
lcd->line(r.p1.x+1,r.p1.y+1, r.p2.x+0,r.p1.y+1, buttonshadow); // top border
lcd->line(r.p1.x+2,r.p1.y+2, r.p2.x+0,r.p1.y+2, buttonshadow); // top border
lcd->line(r.p1.x+0,r.p1.y+0, r.p1.x+0,r.p2.y+0, buttonshadow); // left border
lcd->line(r.p1.x+1,r.p1.y+1, r.p1.x+1,r.p2.y+0, buttonshadow); // left border
lcd->line(r.p1.x+2,r.p1.y+2, r.p1.x+2,r.p2.y+0, buttonshadow); // left border
wave.p1.x = r.p1.x+5 + 2; wave.p1.y = r.p1.y + 5 + 2;
wave.p2.x = r.p2.x-5 + 2; wave.p2.y = r.p2.y - 5 + 2;
} else {
if (enable) {
buttonface = UI_BUTTON_FACE_UP;
buttonshadow = UI_BUTTON_SHADOW;
}
lcd->fillrect(r, buttonface);
lcd->line(r.p1.x+0,r.p2.y-0, r.p2.x-0,r.p2.y-0, buttonshadow); // bottom border
lcd->line(r.p1.x+0,r.p2.y-1, r.p2.x-1,r.p2.y-1, buttonshadow); // bottom border
lcd->line(r.p1.x+0,r.p2.y-2, r.p2.x-2,r.p2.y-2, buttonshadow); // bottom border
lcd->line(r.p2.x-0,r.p1.y+0, r.p2.x-0,r.p2.y-0, buttonshadow); // right border
lcd->line(r.p2.x-1,r.p1.y+0, r.p2.x-1,r.p2.y-1, buttonshadow); // right border
lcd->line(r.p2.x-2,r.p1.y+0, r.p2.x-2,r.p2.y-2, buttonshadow); // right border
wave.p1.x = r.p1.x+5 + 0; wave.p1.y = r.p1.y + 5 + 0;
wave.p2.x = r.p2.x-5 + 0; wave.p2.y = r.p2.y - 5 + 0;
}
switch (mode) {
case SG_SINE:
case SG_SQUARE:
case SG_TRIANGLE:
case SG_SAWTOOTH:
case SG_USER:
DrawWaveform(wave, mode, Black, 50.0);
break;
case SG_KEYPAD:
lcd->foreground(Black);
lcd->background(buttonface);
lcd->SetTextCursor((r.p1.x+r.p2.x)/2 - 4,r.p1.y + BTN_H/2 - 8); // 8x16 char
lcd->putc(UI_KeyLabels[label]);
break;
}
}
void SignalGenDisplay::updateTextWindow(void) {
lcd->window(UI_DATA_ENTRY);
lcd->fillrect(UI_DATA_ENTRY, White);
lcd->foreground(Black);
lcd->background(White);
lcd->SetTextCursor(UI_DATA_ENTRY.p1.x+1,UI_DATA_ENTRY.p1.y+1);
lcd->printf("%21s", textBuffer);
lcd->window();
}
float SignalGenDisplay::rangelimit(float value, float min, float max) {
if (value < min)
return min;
else if (value > max)
return max;
else
return value;
}
void SignalGenDisplay::ShowMenu(void) {
if (Manuf) {
printf("\r\n%s v%s by %s build %s\r\n", ProgName, Ver, Manuf, Build);
}
printf(" Select: Signal:\r\n");
printf(" S: Sine Wave d: Duty Cycle\r\n");
printf(" Q: Square Wave f: Frequency\r\n");
printf(" T: Triangle Wave p: Period\r\n");
printf(" W: Sawtooth Wave v: Voltage\r\n");
printf(" U: User Wave o: Offset\r\n");
printf(" \r\n");
printf(" 0-9 . - : Numeric entry\r\n");
printf(" < > : Modify selected signal\r\n");
printf(" <bs>: Backspace entry\r\n");
printf(" <cr>: Save number\r\n");
printf(" <esc>: Exit number entry\r\n");
//printf(" 4: Reverse sawtoothSignal\r\n");
}
void SignalGenDisplay::resetDataEntry(void) {
SG_Changes last = EntryMd;
printf("-> resetDataEntry()\r\n");
EntryMd = SG_NONE;
switch (last) {
case SG_NONE:
updateDutyCycle();
updateFrequency();
updatePeriod();
updateVoltage();
updateOffset();
lcd->fillrect(UI_DATA_ENTRY, UI_BackColor);
textBuffer[0] = '\0';
textLen = 0;
break;
case SG_DUTY:
updateDutyCycle();
break;
case SG_FREQ:
updateFrequency();
break;
case SG_PERI:
updatePeriod();
break;
case SG_VOLT:
updateVoltage();
break;
case SG_OFFS:
updateOffset();
break;
default:
break;
}
DrawKeypadEnabled(false);
printf(" end resetDataEntry()\r\n");
}