//*****************************************************************************
//
//! \brief ADCSingleMode
//!
//! \param None
//!
//! \return None
//
//*****************************************************************************
void ADCSingleMode(void)
{
UNLOCKREG();
GCR->P5_MFP = (GCR->P5_MFP & 0x00FFFCFC) | 0x03; /* P5.1 -> XTAL2, P5.0 -> XTAL1 */
CLK->PWRCON_BITS.XTLCLK_EN = 1;
/* Waiting for 12M Xtal stalble */
while (DrvSYS_GetChipClockSourceStatus(XTL_CLK) != 1);
/* ADC sample code */
/* default setting: single end input, single operation mode, all channel disable, ADC clock frequency = 12MHz/(3+1) */
DrvADC_Open(0, EXTERNAL_CLOCK, 3);
AdcSingleModeTest();
DrvADC_Close();
}
void setupSystemClock()
{
#ifdef M451
SYS_UnlockReg();
/* Enable HIRC clock */
CLK_EnableXtalRC(CLK_PWRCTL_HIRCEN_Msk);
/* Waiting for HIRC clock ready */
CLK_WaitClockReady(CLK_STATUS_HIRCSTB_Msk);
/* Switch HCLK clock source to HIRC */
CLK_SetHCLK(CLK_CLKSEL0_HCLKSEL_HIRC, CLK_CLKDIV0_HCLK(1));
/* Set core clock as PLL_CLOCK from PLL and SysTick source to HCLK/2*/
CLK_SetCoreClock(SYSTEM_CLOCK);
CLK_SetSysTickClockSrc(CLK_CLKSEL0_STCLKSEL_HCLK_DIV2);
SYS_LockReg();
#else
uint32_t u32PllCr;
uint16_t i;
UNLOCKREG();
DrvSYS_SetOscCtrl(E_SYS_OSC22M, 1);
while (DrvSYS_GetChipClockSourceStatus(E_SYS_OSC22M) != 1);
DrvSYS_SelectPLLSource(E_SYS_INTERNAL_22M);
u32PllCr = DrvSYS_GetPLLContent(E_SYS_INTERNAL_22M, SYSTEM_CLOCK);
/*Delay for 12M or 22M stable*/
for (i=0;i<10000;i++);
DrvSYS_SetPLLContent(u32PllCr);
SYSCLK->PLLCON.OE = 0;
SYSCLK->PLLCON.PD = 0;
/*Delay for PLL stable*/
for (i=0;i<10000;i++);
/* Change HCLK clock source to be PLL. */
DrvSYS_SelectHCLKSource(2);
LOCKREG(); // Lock the protected registers
#endif
}
/*************************************************************************//**
* @brief Delay 1 second exactly with timer.
* @param None
* @return None
*****************************************************************************/
void Delay1Sec(void)
{
UNLOCKREG();
SYSCLK->PWRCON.XTL12M_EN = 1;
/* Waiting for 12M Xtal stable */
while (DrvSYS_GetChipClockSourceStatus(E_SYS_XTL12M) != 1);
/*Configure gpio p3.6 as OUTPUT for led*/
DrvGPIO_Open(E_PORT3, E_PIN6, E_IO_OUTPUT);
/* Example code */
DrvTIMER_Init();
DrvTIMER_Open(E_TMR0, 1000, E_PERIODIC_MODE);
DrvTIMER_EnableInt(E_TMR0);
DrvTIMER_Start(E_TMR0); /* Start counting */
while (1)
{
DrvGPIO_SetBit(E_PORT3, E_PIN6);
DrvTIMER_Delay(E_TMR0, 1000); /*Delay 1000/1000 Sec*/
DrvGPIO_ClrBit(E_PORT3, E_PIN6);
DrvTIMER_Delay(E_TMR0, 1000);
}
}
//*****************************************************************************
//
//! \brief Example of ACMP.
//!
//! \param None
//!
//! \return None
//
//*****************************************************************************
void SmplAcmp(void)
{
UNLOCKREG();
//
// P5.1 -> XTAL2, P5.0 -> XTAL1
//
GCR->P5_MFP = (GCR->P5_MFP & 0x00FFFCFC) | 0x03;
CLK->PWRCON_BITS.XTLCLK_EN = 1;
//
// Waiting for 12M Xtal stable
//
while (DrvSYS_GetChipClockSourceStatus(XTL_CLK) != 1);
DrvGPIO_InitFunction(FUNC_ACMP0);
DrvGPIO_InitFunction(FUNC_ACMP1);
//
// Enable ACMP clock source
//
CLK->APBCLK_BITS.ACMP_EN = 1;
//
// Configure ACMP0
//
ACMP->CR0 = 0x13;
//
// Configure ACMP1
//
ACMP->CR1 = 0x13;
NVIC_EnableIRQ(ACMP_IRQn);
}
/******************************************************************************//**
*@brief A simple FMC example. It Erase the LDROM and Verify ,then Program LDROM
* and read out data to compare.
*@param None
*@return None
**********************************************************************************/
void FMC_LDROM(void)
{
uint32_t u32Data, i;
int32_t i32Err;
// STR_UART_T sParam;
/* Unlock the protected registers */
UNLOCKREG();
/* Enable the 12MHz oscillator oscillation */
SYSCLK->PWRCON.XTL12M_EN = 1;
/* Waiting for 12M Xtal stable */
while (DrvSYS_GetChipClockSourceStatus(E_SYS_XTL12M) != 1);
/* Set UART Pin */
DrvGPIO_InitFunction(E_FUNC_UART0);
/* UART Setting */
/* sParam.u32BaudRate = 115200;
sParam.u8cDataBits = DRVUART_DATABITS_8;
sParam.u8cStopBits = DRVUART_STOPBITS_1;
sParam.u8cParity = DRVUART_PARITY_NONE;
sParam.u8cRxTriggerLevel= DRVUART_FIFO_1BYTES;
*/
/* Select UART Clock Source From 12MHz */
DrvSYS_SelectIPClockSource(E_SYS_UART_CLKSRC, 0);
/* Set UART Configuration */
// DrvUART_Open(UART_PORT0, &sParam);
/* Enable ISP function */
DrvFMC_EnableISP();
/* Enable LDROM update */
DrvFMC_EnableLDUpdate();
/* Page Erase LDROM */
printf("Erase LDROM test...............................");
for(i=0; i<4096; i+=PAGE_SIZE)
DrvFMC_Erase(LDROM_BASE + i);
/* Erase Verify */
i32Err = 0;
for(i = LDROM_BASE; i < (LDROM_BASE+4096); i += 4)
{
DrvFMC_Read(i, &u32Data);
if(u32Data != 0xFFFFFFFF)
{
i32Err = 1;
}
}
if (i32Err)
printf("[FAIL]\n\r");
else
printf("[OK]\n\r");
/* Program LD ROM and read out data to compare */
printf("Program LDROM test.............................");
for(i = LDROM_BASE; i < (LDROM_BASE+4096); i += 4)
{
DrvFMC_Write(i, i);
}
i32Err = 0;
for(i = LDROM_BASE; i < (LDROM_BASE+4096); i += 4)
{
DrvFMC_Read(i, &u32Data);
if(u32Data != i)
{
i32Err = 1;
}
}
if (i32Err)
printf("[FAIL]\n\r");
else
printf("[OK]\n\r");
/* Disable ISP function */
DrvFMC_DisableISP();
/* Lock protected registers */
LOCKREG();
printf("FMC Sample Code Completed!\n\r");
}
//*****************************************************************************
//
//! \brief GPIO test.
//!
//! \param None
//!
//! \return None
//
//*****************************************************************************
void GpioTest(void)
{
int32_t i32Err;
UNLOCKREG();
//
// Enable high external clock and use it as system clock (HCLK)
//
DrvSYS_Open(XTL_CLK);
//
// Waiting for 12M Xtal stable
//
while (DrvSYS_GetChipClockSourceStatus(XTL_CLK) != 1);
//
// Configure Bit0 in Port1 to Output pin and Bit4 in Port3 to Input
// pin then close it
//
DrvGPIO_Open(E_PORT1, E_PIN0, E_IO_OUTPUT);
DrvGPIO_Open(E_PORT3, E_PIN4, E_IO_INPUT);
i32Err = 0;
DrvGPIO_ClrBit(E_PORT1, E_PIN0);
if (DrvGPIO_GetBit(E_PORT3, E_PIN4) != 0)
{
i32Err = 1;
}
DrvGPIO_SetBit(E_PORT1, E_PIN0);
if (DrvGPIO_GetBit(E_PORT3, E_PIN4) != 1)
{
i32Err = 1;
}
DrvGPIO_Close(E_PORT1, E_PIN0);
DrvGPIO_Close(E_PORT3, E_PIN4);
//
// GPIO Interrupt Test:P15, P22, P32(INT0) and P52(INT1) are used to test
// interrupt and control LEDs(P30)
//
//
//Configure P30 for LED control
//
DrvGPIO_Open(E_PORT3, E_PIN0, E_IO_OUTPUT);
//
//Configure P15 as general GPIO interrupt
//
DrvGPIO_Open(E_PORT1, E_PIN5, E_IO_INPUT);
//
//The Quasi-bidirection mode could be used as input with pull up enable
//
DrvGPIO_Open(E_PORT2, E_PIN2, E_IO_QUASI);
//
// Configure general interrupt callback function for P0/P1 and P2/P3/P4
//
DrvGPIO_SetIntCallback(P0P1Callback, P2P3P4Callback, P5Callback);
DrvGPIO_EnableInt(E_PORT1, E_PIN5, E_IO_RISING, E_MODE_EDGE);
//
// IO_FALLING means low level trigger if it is in level trigger mode.
//
DrvGPIO_EnableInt(E_PORT2, E_PIN2, E_IO_FALLING, E_MODE_LEVEL);
DrvGPIO_SetDebounceTime(0, E_DBCLKSRC_HCLK);
DrvGPIO_EnableDebounce(E_PORT1, E_PIN5);
DrvGPIO_EnableDebounce(E_PORT2, E_PIN2);
DrvGPIO_EnableDebounce(E_PORT3, E_PIN2);
DrvGPIO_EnableDebounce(E_PORT5, E_PIN2);
//
// Configure external interrupt.
//
DrvGPIO_InitFunction(FUNC_EXTINT0);
DrvGPIO_InitFunction(FUNC_EXTINT1);
DrvGPIO_EnableEINT(E_EINT0_PIN, E_IO_FALLING, E_MODE_EDGE, EINT0Callback);
DrvGPIO_EnableEINT(E_EINT1_PIN, E_IO_BOTH_EDGE, E_MODE_EDGE, EINT1Callback);
}