FongArm: 2013-08-04

void testXiaBoardPwmBlinky05()
{
// Enable System AHB clock for CT16B0 timer (Table 21 bit 7 CT16B0)
LPC_SYSCON->SYSAHBCLKCTRL |= (1 << 7); // CT16B0 = 1 enables CT16B0

// Enable System AHB clock for IOCON block (Table 21 bit 16 IOCON)
LPC_SYSCON->SYSAHBCLKCTRL |= (1 << 16); // IOCON = 1 enable clk for IOCON

// Set function of PIO0_8 pin (UM10398 Table 79 bits 2:0 FUNC)
LPC_IOCON->PIO0_8 &= ~0x7; // FUNC = 0x2 selects function of
LPC_IOCON->PIO0_8 |= 0x2; // CT16B0_MAT0

// Set PWM mode for CT16B0_MAT0,3 (Table 293 bit 0 PWMEN0, bit3 PWMEN3)
LPC_TMR16B0->PWMC |= 0x9; // PWMENO & PWMEN3 = 1 enable MR0, MR3

// Set External Match Register (Tables 290, 291) // not sure about this
LPC_TMR16B0->EMR = (0x3 | 0x1); // bits 4, 5 = 11 toggle, bit 0 = 1

// Resets timer counter on MR3 match (Table 286 bit 10 MR3R)
LPC_TMR16B0->MCR |= 0x400; // MR3R = 1 resets counter on MR3 match

// Set prescale 12000 count of AHB clock = 240 uS (Table 279 TMR16B0PR)
LPC_TMR16B0->PR = 12000; // (1/(50,000,000/2) x 12000 = 240 uS

// Set cycle length (Table 279 TMR16B0MR3, Figure 68)
LPC_TMR16B0->MR3 = 4000; // 240uS x 4000 = 0.96 == 1 second

// Set duty cycle (Table 279 TMR16B0MR0, Figure 68)
LPC_TMR16B0->MR0 = 2000; // 240uS x 2000 == 0.5 second (50% duty cycle)

// Start timer (Table 279 TMR16B0CTCR bit0 CEn)
LPC_TMR16B0->TCR |= 0x1; // CEn = 1 enables timer

while (1)
{
// loop forever
}
}

// ***********************************************************************
// Program - FongPwmBlinky
// Description - Testing LPC1114FN28/102 Pwm Blinky
// Author - TL Fong <fongmcu.blogspot.hk> <tlfong01hongkong@google.com>
// Build - 2013.08.10.01
// Date - 2013aug10hkt1049
// Hardware - NXP ARM Cortex M0 LPC1114FN28/102, LPC1114/11U14 FBD48/301/302,
// Somy, DingSung, FongToy LPC1114 Evaluation Board
// IDE - MDK-Lite/uVision 4.71, CoLinkEx 1.1, Flash Magic v7.51
// ***********************************************************************

#include <stdio.h>
#include "lpc11xx.h"

// # fongportpin01.h #
// ***********************************************************************
// GPIO port/pin number definition and declaration
// ***********************************************************************

// *** Port and pin numbers ***

typedef const int portNumber;

portNumber Port0 = 0;
portNumber Port1 = 1;
portNumber Port2 = 2;
portNumber Port3 = 3;
portNumber Port4 = 4;

typedef const int pinNumber;

pinNumber Pin0 = 0;
pinNumber Pin1 = 1;
pinNumber Pin2 = 2;
pinNumber Pin3 = 3;
pinNumber Pin4 = 4;
pinNumber Pin5 = 5;
pinNumber Pin6 = 6;
pinNumber Pin7 = 7;
pinNumber Pin8 = 8;
pinNumber Pin9 = 9;
pinNumber Pin10 = 10;
pinNumber Pin11 = 11;

typedef const int ledNumber;

ledNumber Led1 = 1; // caution!!! LED #1 denotes element #0 in port/pin array array !!!
ledNumber Led2 = 2;
ledNumber Led3 = 3;
ledNumber Led4 = 4;
ledNumber Led5 = 5;
ledNumber Led6 = 6;

typedef const int keyNumber;

typedef int keyPortArrayArrayIndex;

keyNumber Key1 = 1;
keyNumber Key2 = 2;
keyNumber Key3 = 3;
keyNumber Key4 = 4;
keyNumber Key5 = 5;

// fongconfig01.h
// ***********************************************************************
// Fong Board and Xia Board configuration - last update 2013aug03
// ***********************************************************************

// *** Led and key port pin array array ***

typedef int ledPortPinArrayArray[6][2]; // maximum 6 LEDs, each with unique port/pin
typedef int keyPortPinArrayArray[5][2]; // maximum 5 keys, each with unique port/pin

typedef int portPinArrayArrayIndex;

portPinArrayArrayIndex PortIndex = 0; // index of port
portPinArrayArrayIndex PinIndex = 1; // index of pin

// * Fong Board has 3 LEDs and 2 keys *

int MaxFongLedNumber = 3;
int MaxFongKeyNumber = 2;

ledPortPinArrayArray FongLedPortPinArrayArray = {{Port1, Pin8}, {Port0, Pin2}, {Port0, Pin8}};
keyPortPinArrayArray FongKeyPortPinArrayArray = {{Port1, Pin9}, {Port0, Pin3}};

// * Xia Board has 5 LEDs (1_8, 2_7, 2_8, 2_5, 0_8 (PWM) and 5 keys *

ledPortPinArrayArray XiaLedPortPinArrayArray = {{Port1, Pin8}, {Port2, Pin7}, {Port2, Pin8}, {Port2, Pin5}, {Port0, Pin8}};
int MaxXiaLedNumber = 5;

keyPortPinArrayArray XiaKeyPortPinArrayArray = {{Port0, Pin2},{Port0, Pin3}, {Port3, Pin4}, {Port1, Pin9}, {Port1, Pin4}};
int MaxXiaKeyNumber = 5;

// *** Mpu Board Struct ***

typedef struct
{
ledPortPinArrayArray ledPortPinArrayArray[5][2];
keyPortPinArrayArray keyPortPinArrayArray[5][2];
} mcuBoardStruct;

// * Fong Board Struct *

mcuBoardStruct FongBoardStruct = {{{Port1, Pin8}, {Port0, Pin2}, {Port0, Pin8}},
{{Port1, Pin9}, {Port0, Pin3}}};

mcuBoardStruct *FongBoard = &FongBoardStruct;

// * Xia Board Struct *

mcuBoardStruct XiaBoardStruct = {{{Port1, Pin8},{Port2, Pin7}, {Port2, Pin8}, {Port2, Pin5}, {Port0, Pin8}},
{{Port0, Pin2},{Port0, Pin3}, {Port3, Pin4}, {Port1, Pin9}, {Port1, Pin4}}};

mcuBoardStruct *XiaBoard = &XiaBoardStruct;

// # fongdelayloop01.h #
// ***********************************************************************
// Delay functions and count constants
// ***********************************************************************

// *** delay using looping ***

void delayTenthSecond(int count)
{
int i, j, k;
for (i = 0; i < count; i++)
{
for (j = 0; j < 0x04; j++)
{
for (k = 0; k < 0x000BB00; k++)
{
}
}
}
}

// *** delay using Systick ***

static volatile uint32_t TimeTick = 0;

void SysTick_Handler(void)
{
TimeTick++;
}

typedef int tenthSecond;
/*
tenthSecond OnHalfSecond = 5;
tenthSecond OnOneSecond = 10;

tenthSecond OffHalfSecond = 5;
tenthSecond OffOneSecond = 10;

tenthSecond FourSeconds = 40;
*/

void delayMilliSecond(uint32_t mS)
{
SysTick->LOAD = (((24000)*mS)-1);
SysTick->VAL = 0;
SysTick->CTRL |= ((1<<1)|(1<<0));

while(!TimeTick)
{
};
TimeTick = 0;
SysTick->CTRL =0;
}

// *** Timer constants ***

typedef int milliSecond;
milliSecond OnQuarterSecond = 250;
milliSecond OnHalfSecond = 500;
milliSecond OffQuarterSecond = 250;
milliSecond OffHalfSecond = 500;
milliSecond OffOneSecond = 1000;

// *** Loop constants ***

typedef int repeatCount;
repeatCount OneTime = 1;
repeatCount TwoTimes = 2;
repeatCount ThreeTimes = 3;
repeatCount FourTimes = 4;
repeatCount FiveTimes = 5;
repeatCount SixTimes = 6;
repeatCount EightTimes = 8;
repeatCount TenTimes = 10;
repeatCount TwentyTimes = 20;

// # fonggpio01.h #
// ***********************************************************************
// GPIO port/pin set input/output and read/write data functions
// ***********************************************************************

// * typedefs and #defines *

typedef int directionValue;

directionValue InputDirection = 0;
directionValue OutputDirection = 1;

typedef int logicLevelValue;

logicLevelValue LogicLevelLow = 0;
logicLevelValue LogicLevelHigh = 1;

#define LOW 0
#define HIGH 1

// * GPIO port/pin control/data structure pointers array *

// # LPC11xx has 4 control/data structures to handle 4 GPIO ports.
// # The pointers of the 4 structures are stored in a 4 element array.

typedef LPC_GPIO_TypeDef *gpioStructPointerArray[4];
gpioStructPointerArray GpioStructPointerArray = {LPC_GPIO0, LPC_GPIO1, LPC_GPIO2, LPC_GPIO3};

// ***********************************************************************
// Name - getGpioStructPointer
// Input - port number
// Output - GPIO control/data structure pointer
// ***********************************************************************

LPC_GPIO_TypeDef *getGpioStructPointer(int portNumber)
{
LPC_GPIO_TypeDef *gpioStructPointer;
gpioStructPointer = GpioStructPointerArray[portNumber];
return gpioStructPointer;
}

// ***********************************************************************
// Name - setGpioDirectionRegisterBitInput
// Input - port control structure, pin number
// Output - set pin as input
// ***********************************************************************

void setGpioDirectionRegisterBitInput(LPC_GPIO_TypeDef *gpio_struct_ptr, int bitNumber)
{
gpio_struct_ptr->DIR &= ~(1 << bitNumber);
}

// ***********************************************************************
// Name - setGpioDirectionRegisterBitOutput
// Input - port control structure, pin number
// Output - set pin as output
// ***********************************************************************

void setGpioDirectionRegisterBitOutput(LPC_GPIO_TypeDef *gpio_struct_ptr, int bitNumber)
{
gpio_struct_ptr->DIR |= (1 << bitNumber);
}

void setGpioDataRegisterBitLow(LPC_GPIO_TypeDef *gpio_struct_ptr, int bitNumber)
{
gpio_struct_ptr->DATA &= ~(1 << bitNumber);
}

void setGpioDataRegisterBitHigh(LPC_GPIO_TypeDef *gpio_struct_ptr, int bitNumber)
{
gpio_struct_ptr->DATA |= (1 << bitNumber);
}

void setPortPinDirection(LPC_GPIO_TypeDef *gpio_struct_ptr, int pinNumber, directionValue directionValue)
{
if (directionValue == InputDirection)
setGpioDirectionRegisterBitInput(gpio_struct_ptr, pinNumber);
else
setGpioDirectionRegisterBitOutput(gpio_struct_ptr, pinNumber);
}

void setPortPinData(LPC_GPIO_TypeDef *gpio_struct_ptr, int pinNumber, logicLevelValue logicLevelValue)
{
if (logicLevelValue == LogicLevelLow)
setGpioDataRegisterBitLow(gpio_struct_ptr, pinNumber);
else
setGpioDataRegisterBitHigh(gpio_struct_ptr, pinNumber);
}

// # fongled01.h
// ***********************************************************************
// LED functions
// ***********************************************************************

portNumber getLedPortNumber01(ledNumber ledNumber, ledPortPinArrayArray ledPortPinArrayArray)
{
int portNumber;
portNumber = ledPortPinArrayArray [ledNumber - 1][PortIndex];
return portNumber;
}

pinNumber getLedPinNumber01(ledNumber ledNumber, ledPortPinArrayArray ledPortPinArrayArray)
{
int ledPinNumber;
ledPinNumber = ledPortPinArrayArray [ledNumber - 1][PinIndex];
return ledPinNumber;
}

portNumber getLedPortNumber02(ledNumber ledNumber, mcuBoardStruct *mcuBoardPtr)
{
int portNumber;
portNumber = (int)(mcuBoardPtr->ledPortPinArrayArray [ledNumber - 1][PortIndex]);
return portNumber;
}

pinNumber getLedPinNumber02(ledNumber ledNumber, mcuBoardStruct *mcuBoardPtr)
{
int ledPinNumber;
ledPinNumber = (int)(mcuBoardPtr->ledPortPinArrayArray [ledNumber - 1][PinIndex]);
return ledPinNumber;
}

void initializeLedPortPin01(ledNumber ledNumber, ledPortPinArrayArray ledPortPinArrayArray)
{
int portNumber;
int pinNumber;
LPC_GPIO_TypeDef *gpio_struct_ptr;

portNumber = getLedPortNumber01(ledNumber, ledPortPinArrayArray);
gpio_struct_ptr = getGpioStructPointer(portNumber);

pinNumber = getLedPinNumber01(ledNumber, ledPortPinArrayArray);

setPortPinDirection(gpio_struct_ptr, pinNumber, OutputDirection);
}

void initializeAllLeds01(ledPortPinArrayArray ledPortPinArrayArray, int maxLedNumber)
{
int ledNumber;

for (ledNumber = 1; ledNumber < (maxLedNumber + 1); ledNumber++) // Caution!!! ledNumber starts 1, not 0 !!!
{
initializeLedPortPin01(ledNumber, ledPortPinArrayArray);
}
}

void initializeAllLeds02(ledPortPinArrayArray ledPortPinArrayArray, int maxLedNumber)
{
int ledNumber;

for (ledNumber = 1; ledNumber < (maxLedNumber + 1); ledNumber++) // Caution!!! ledNumber starts 1, not 0 !!!
{
initializeLedPortPin01(ledNumber, ledPortPinArrayArray);
}
}

// ***********************************************************************
// Blinky functions
// ***********************************************************************

void blinky01(ledPortPinArrayArray ledPortPinArrayArray, ledNumber ledNumber, int onTime, int offTime, int blinkCount)
{
int count;
int portNumber;
int pinNumber;
LPC_GPIO_TypeDef *gpio_struct_ptr;

portNumber = getLedPortNumber01(ledNumber, ledPortPinArrayArray);
gpio_struct_ptr = getGpioStructPointer(portNumber);

pinNumber = getLedPinNumber01(ledNumber, ledPortPinArrayArray);

delayMilliSecond(500);

for (count = 0; count < blinkCount; count++)
{
setPortPinData(gpio_struct_ptr, pinNumber, LogicLevelLow);
delayMilliSecond(onTime);
setPortPinData(gpio_struct_ptr, pinNumber, LogicLevelHigh);
delayMilliSecond(offTime);
}
}

void blinky02(mcuBoardStruct *mcuBoardPtr, ledNumber ledNumber, int onTime, int offTime, int blinkCount)
{
int count;
int portNumber;
int pinNumber;
LPC_GPIO_TypeDef *gpio_struct_ptr;

portNumber = getLedPortNumber02(ledNumber, mcuBoardPtr);

// portNumber = 1;

gpio_struct_ptr = getGpioStructPointer(portNumber);

pinNumber = getLedPinNumber02(ledNumber, mcuBoardPtr);

// pinNumber = 8;

for (count = 0; count < blinkCount; count++)
{
setPortPinData(gpio_struct_ptr, pinNumber, LogicLevelLow);
delayMilliSecond(onTime);
setPortPinData(gpio_struct_ptr, pinNumber, LogicLevelHigh);
delayMilliSecond(offTime);
}
}

void testFongBoardBlinky01(ledNumber ledNumber, repeatCount repeatCount)
{
blinky01(FongLedPortPinArrayArray, ledNumber, OnHalfSecond, OffOneSecond, repeatCount);
}

void testXiaBoardBlinky01(ledNumber ledNumber, repeatCount repeatCount)
{
blinky01(XiaLedPortPinArrayArray, ledNumber, OnHalfSecond, OffOneSecond, repeatCount);
}

void testXiaBoardBlinky02(ledNumber ledNumber, repeatCount repeatCount)
{
blinky01(XiaLedPortPinArrayArray, ledNumber, OnHalfSecond, OffOneSecond, repeatCount);
}

void testFongBoardBlinky02(ledNumber ledNumber, repeatCount repeatCount)
{
blinky02(FongBoard, ledNumber, OnHalfSecond, OffOneSecond, repeatCount);
}

// # fongkey01.h #
// ***********************************************************************
// Key functions
// ***********************************************************************

typedef logicLevelValue keyStatus;
keyStatus KeyPressed = LOW;
keyStatus KeyReleased = HIGH;

portNumber getKeyPortNumber01(keyNumber keyNumber, keyPortPinArrayArray keyPortPinArrayArray)
{
int portNumber;
portNumber = keyPortPinArrayArray [keyNumber - 1][PortIndex];
return portNumber;
}

pinNumber getKeyPinNumber01(keyNumber keyNumber, keyPortPinArrayArray keyPortPinArrayArray)
{
int keyPinNumber;
keyPinNumber = keyPortPinArrayArray [keyNumber - 1][PinIndex];
return keyPinNumber;
}

void initializeKeyPortPin01(keyNumber keyNumber, keyPortPinArrayArray keyPortPinArrayArray)
{
int portNumber;
int pinNumber;
LPC_GPIO_TypeDef *gpio_struct_ptr;

portNumber = getKeyPortNumber01(keyNumber, keyPortPinArrayArray);
gpio_struct_ptr = getGpioStructPointer(portNumber);

pinNumber = getKeyPinNumber01(keyNumber, keyPortPinArrayArray);

setPortPinDirection(gpio_struct_ptr, pinNumber, InputDirection);
}

void initializeAllKeys01(keyPortPinArrayArray keyPortPinArrayArray, int maxKeyNumber)
{
int keyNumber;

for (keyNumber = 1; keyNumber < (maxKeyNumber + 1); keyNumber++)
{
initializeKeyPortPin01(keyNumber, keyPortPinArrayArray);
}
}

logicLevelValue getGpioDataRegisterBitValue(LPC_GPIO_TypeDef *gpio_struct_ptr, int bitPosition)
{
logicLevelValue logicLevelValue;

int GpioDataRegisterMask = (1 << bitPosition);

if ((gpio_struct_ptr->DATA &= GpioDataRegisterMask) == GpioDataRegisterMask)
logicLevelValue = HIGH;
else
logicLevelValue = LOW;

// logicLevelValue = LOW; // ########## debug only !!!
// logicLevelValue = HIGH; // ########## debug only !!!

return logicLevelValue;
}

keyStatus getKeyStatus(keyPortPinArrayArray keyPortPinArrayArray, keyNumber keyNumber)
{
keyStatus keyStatus;
int portNumber;
int pinNumber;
LPC_GPIO_TypeDef *gpio_struct_ptr;

portNumber = getKeyPortNumber01(keyNumber, keyPortPinArrayArray);
gpio_struct_ptr = getGpioStructPointer(portNumber);
pinNumber = getKeyPinNumber01(keyNumber, keyPortPinArrayArray);

keyStatus = getGpioDataRegisterBitValue(gpio_struct_ptr, pinNumber);

return keyStatus;
}

void echoKey(keyPortPinArrayArray keyPortPinArrayArray, keyNumber keyNumber, ledPortPinArrayArray ledPortPinArrayArray, ledNumber ledNumber, int echoCount)
{
int count;
keyStatus keyStatus;

for (count = 0; count < echoCount; count++)
{
delayMilliSecond(1000);

keyStatus = HIGH;
while (keyStatus == HIGH)
{
keyStatus = getKeyStatus(keyPortPinArrayArray, keyNumber);

if (keyStatus == LOW)
{
blinky01(ledPortPinArrayArray, ledNumber, OnQuarterSecond, OffQuarterSecond, TwoTimes);
delayMilliSecond(2000);
keyStatus = HIGH;
break;
}
}
}
}

void testFongBoardEchoKey01(keyNumber keyNumber, ledNumber ledNumber, repeatCount repeatCount)
{
echoKey(FongKeyPortPinArrayArray, keyNumber, FongLedPortPinArrayArray, ledNumber, repeatCount);
}

void testXiaBoardEchoKey01(keyNumber keyNumber, ledNumber ledNumber, repeatCount repeatCount)
{
echoKey(XiaKeyPortPinArrayArray, keyNumber, XiaLedPortPinArrayArray, ledNumber, repeatCount);
}

// # fongtimer01.h #
// ***********************************************************************
// Timer functions
// ***********************************************************************

typedef LPC_TMR_TypeDef *timerStructPointerArray[4];
timerStructPointerArray TimerStructPointerArray = {LPC_TMR16B0, LPC_TMR16B1, LPC_TMR32B0, LPC_TMR32B1};

typedef LPC_IOCON_TypeDef *lpcIoCon;
lpcIoCon LpcIoCon = LPC_IOCON;

// *** Timer config and enable functions ***

void setPinFunction()
{
LPC_IOCON ->PIO1_9 |= (1 << 0); // PIN1_9 = CT16B1_MAT0
}

// *** Timer enable bit array ***

int TimerEnableBitArray[4] = {7, 8, 9, 10}; // SYSAHBCLKCTRL timer enable bits

typedef const int timerNumber;
timerNumber Timer16Bit0 = 0;
timerNumber Timer16Bit1 = 1;
timerNumber Timer32Bit0 = 2;
timerNumber Timer32Bit1 = 3;

timerNumber Timer1 = Timer16Bit0;
timerNumber Timer2 = Timer16Bit1;
timerNumber Timer3 = Timer32Bit0;
timerNumber Timer4 = Timer32Bit1;

int const TimerNumberMax = 4;

LPC_TMR_TypeDef *getTimerStructPointer(int timerNumber)
{
LPC_TMR_TypeDef *timerStructPointer;
timerStructPointer = TimerStructPointerArray[timerNumber];
return timerStructPointer;
}

int getTimerEnableBit(int timerNumber)
{
int timerEnableBit;

timerEnableBit = TimerEnableBitArray[timerNumber];
return timerEnableBit;
}

void enableTimer(int timerNumber)
{
int timerEnableBit;
timerEnableBit = getTimerEnableBit(timerNumber);
LPC_SYSCON ->SYSAHBCLKCTRL |= (1 <<timerEnableBit);
}

void initializeAllTimers01()
{
enableTimer(Timer1);
enableTimer(Timer2);
enableTimer(Timer3);
enableTimer(Timer4);
}

// # fongpwm01.h *
// ***********************************************************************
// PWM Blinky
// ***********************************************************************

// # fonginit01.h #
// ***********************************************************************
// Initialization functions
// ***********************************************************************

void initializeFongBoard01()
{
initializeAllLeds01(FongLedPortPinArrayArray, MaxFongLedNumber);
initializeAllKeys01(FongKeyPortPinArrayArray, MaxFongKeyNumber);
initializeAllTimers01();
}

void initializeXiaBoard01()
{
initializeAllLeds01(XiaLedPortPinArrayArray, MaxXiaLedNumber);
initializeAllKeys01(XiaKeyPortPinArrayArray, MaxXiaKeyNumber);
initializeAllTimers01();
}

/*
void initializeXiaBoard02()
{
initializeAllLeds01(XiaLedPortPinArrayArray, MaxXiaLedNumber);
initializeAllKeys01(XiaKeyPortPinArrayArray, MaxXiaKeyNumber);
initializeAllTimers01();
}
*/

// # fongtest01.h #
// ***********************************************************************
// Test functions
// ***********************************************************************

// *** Fong Board Tests ***

void testFongBoard01()
{
initializeFongBoard01();
testFongBoardBlinky01(Led1, TwoTimes);
testFongBoardBlinky01(Led2, TwoTimes);
testFongBoardEchoKey01(Key1, Led1, TwoTimes);
testFongBoardEchoKey01(Key1, Led2, TwoTimes);
}

void testFongBoardDelayBlinky02()
{
initializeFongBoard01();
testFongBoardBlinky01(Led1, OneTime);
testFongBoardBlinky01(Led2, TwoTimes);
testFongBoardBlinky01(Led3, ThreeTimes);
}

// *** Xia Board Tests ***

// ***********************************************************************
// Program - PWM Blinky
// Description - Blink Somy Board LED PIO0_8 using PWM
// Build - 2013.08.10.05
// Date - 2013aug10hkt1532
// Author - TL Fong
// Reference - MIT 6.01SC Intro EE&CS1, <http://ocw.mit.edu/6-01SCS11>
// License - Creative Commons BY-NC-SA <http://ocw.mit.edu/terms/>
// Hardware - NXP ARM Cortex M0 LPC1114FBD48/302 (Somy Eval Board)
// IDE - MDK-Lite/uVision 4.71, CoLinkEx 1.1, Flash Magic v7.51
// References -
// 1. UM10398 LPC111x/LPC11Cxx User manual R12 2012sep24 Chapter 18
// 2. LPC11xx.h CMSIS Cortex-M0 Core Peripheral Access Layer Header File
// for NXP LPC11xx/LPC11Cxx V1.10 2010nov24
// Notes -
// 1. PWM pin configuration
// PIO0_8/MISO0/CT16B0_MAT0 = Somy LPC1114 Eval Board P4 Pin 3
// ***********************************************************************

void testXiaBoardPwmBlinky05()
{
// Enable System AHB clock for CT16B0 timer (Table 21 bit 7 CT16B0)
LPC_SYSCON->SYSAHBCLKCTRL |= (1 << 7); // CT16B0 = 1 enables CT16B0

// Enable System AHB clock for IOCON block (Table 21 bit 16 IOCON)
LPC_SYSCON->SYSAHBCLKCTRL |= (1 << 16); // IOCON = 1 enable clk for IOCON

// Set function of PIO0_8 pin (UM10398 Table 79 bits 2:0 FUNC)
LPC_IOCON->PIO0_8 &= ~0x7; // FUNC = 0x2 selects function of
LPC_IOCON->PIO0_8 |= 0x2; // CT16B0_MAT0

// Set PWM mode for CT16B0_MAT0,3 (Table 293 bit 0 PWMEN0, bit3 PWMEN3)
LPC_TMR16B0->PWMC |= 0x9; // PWMENO & PWMEN3 = 1 enable MR0, MR3

// Set External Match Register (Tables 290, 291) // not sure about this
LPC_TMR16B0->EMR = (0x3 | 0x1); // bits 4, 5 = 11 toggle, bit 0 = 1

// Resets timer counter on MR3 match (Table 286 bit 10 MR3R)
LPC_TMR16B0->MCR |= 0x400; // MR3R = 1 resets counter on MR3 match

// Set prescale 12000 count of AHB clock = 240 uS (Table 279 TMR16B0PR)
LPC_TMR16B0->PR = 12000; // (1/(50,000,000/2) x 12000 = 240 uS

// Set cycle length (Table 279 TMR16B0MR3, Figure 68)
LPC_TMR16B0->MR3 = 4000; // 240uS x 4000 = 0.96 == 1 second

// Set duty cycle (Table 279 TMR16B0MR0, Figure 68)
LPC_TMR16B0->MR0 = 2000; // 240uS x 2000 == 0.5 second (50% duty cycle)

// Start timer (Table 279 TMR16B0CTCR bit0 CEn)
LPC_TMR16B0->TCR |= 0x1; // CEn = 1 enables timer

while (1)
{
// loop forever
}
}

void testXiaBoardDelayBlinky02()
{
testXiaBoardBlinky01(Led1, OneTime); // Port 1, Pin 8
testXiaBoardBlinky01(Led2, OneTime); // Port 2, Pin 7
testXiaBoardBlinky01(Led3, OneTime); // Port 2, Pin 8
testXiaBoardBlinky01(Led4, OneTime); // Port 2, Pin 5
testXiaBoardBlinky01(Led5, OneTime); // Port 0, Pin 8
}

void testXiaBoardPwmBlinky04()
{
initializeXiaBoard01();
testXiaBoardDelayBlinky02(); // delay blink
testXiaBoardPwmBlinky05(); // pwm blink
}

// ***********************************************************************
// Main Function
// ***********************************************************************

int main()
{
testXiaBoardPwmBlinky04(); // blinks Led 1 to 5 once, then 5 non stop
}

// ***********************************************************************
// End of Program
// ***********************************************************************

// .END

FongArm

SWD pinout

LPC1114 Interrupt learning notes

Somy LPC1114 Eval Board PWM Blinky function tested OK

PWM Blink problem solved