/*---------------------------------------------------------------------------------------------------------*/
void SYS_Init(void)
{
/* Unlock protected registers */
SYS_UnlockReg();
/* Set HCLK source form HXT and HCLK source divide 1 */
CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HXT,CLK_HCLK_CLK_DIVIDER(1));
/* Enable external 12MHz HXT, 32KHz LXT and HIRC */
CLK_EnableXtalRC(CLK_PWRCTL_HXT_EN_Msk | CLK_PWRCTL_LXT_EN_Msk | CLK_PWRCTL_HIRC_EN_Msk);
/* Waiting for clock ready */
CLK_WaitClockReady(CLK_CLKSTATUS_HXT_STB_Msk | CLK_CLKSTATUS_LXT_STB_Msk | CLK_CLKSTATUS_HIRC_STB_Msk);
/* Set HCLK frequency 32MHz */
CLK_SetCoreClock(32000000);
CLK->AHBCLK |= CLK_AHBCLK_DMA_EN_Msk;
/* Enable IP clock */
CLK_EnableModuleClock(UART0_MODULE);
/* Enable ADC clock */
CLK_EnableModuleClock(ADC_MODULE);
/* Select IP clock source */
CLK_SetModuleClock(UART0_MODULE,CLK_CLKSEL1_UART_S_HXT,CLK_UART_CLK_DIVIDER(1));
/*---------------------------------------------------------------------------------------------------------*/
/* Init I/O Multi-function */
/*---------------------------------------------------------------------------------------------------------*/
/* Set PA multi-function pins for UART0 RXD and TXD */
SYS->PB_L_MFP &= ~( SYS_PB_L_MFP_PB0_MFP_Msk | SYS_PB_L_MFP_PB1_MFP_Msk);
SYS->PB_L_MFP |= (SYS_PB_L_MFP_PB0_MFP_UART0_RX | SYS_PB_L_MFP_PB1_MFP_UART0_TX );
/* Set PB multi-function pins for Clock Output */
SYS->PB_H_MFP = ( SYS->PB_H_MFP & ~SYS_PB_H_MFP_PB12_MFP_Msk ) | SYS_PB_H_MFP_PB12_MFP_CKO;
/* Set PA.0,PA.1,PA.2,PA.3 multi-function pin for ADC channel 0,1,2,3 */
SYS->PA_L_MFP = (SYS->PA_L_MFP & ~SYS_PA_L_MFP_PA0_MFP_Msk) | SYS_PA_L_MFP_PA0_MFP_ADC_CH0;
SYS->PA_L_MFP = (SYS->PA_L_MFP & ~SYS_PA_L_MFP_PA1_MFP_Msk) | SYS_PA_L_MFP_PA1_MFP_ADC_CH1;
SYS->PA_L_MFP = (SYS->PA_L_MFP & ~SYS_PA_L_MFP_PA2_MFP_Msk) | SYS_PA_L_MFP_PA2_MFP_ADC_CH2;
SYS->PA_L_MFP = (SYS->PA_L_MFP & ~SYS_PA_L_MFP_PA3_MFP_Msk) | SYS_PA_L_MFP_PA3_MFP_ADC_CH3;
/* Disable PA.0 digital input path */
PA->OFFD |= ((1 << 0) << GP_OFFD_OFFD_Pos);
/* Lock protected registers */
SYS_LockReg();
}
void SysInit(void)
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init System Clock */
/*---------------------------------------------------------------------------------------------------------*/
/* Unlock protected registers */
SYS_UnlockReg();
/* Enable External XTAL (4~24 MHz) */
CLK_EnableXtalRC(CLK_PWRCTL_HXT_EN_Msk);
/* Waiting for 12MHz clock ready */
CLK_WaitClockReady( CLK_CLKSTATUS_HXT_STB_Msk);
/* Switch HCLK clock source to HXT */
CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HXT,CLK_HCLK_CLK_DIVIDER(1));
/* Enable IP clock */
CLK_EnableModuleClock(UART0_MODULE);
CLK_EnableModuleClock(TMR0_MODULE);
CLK_EnableModuleClock(TMR1_MODULE);
/* Select IP clock source */
CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART_S_HXT, CLK_UART_CLK_DIVIDER(1));
CLK_SetModuleClock(TMR0_MODULE, CLK_CLKSEL1_TMR0_S_HXT, CLK_TMR0_CLK_DIVIDER(1));
CLK_SetModuleClock(TMR0_MODULE, CLK_CLKSEL1_TMR1_S_HXT, CLK_TMR1_CLK_DIVIDER(1));
/* Update System Core Clock */
/* User can use SystemCoreClockUpdate() to calculate SystemCoreClock. */
SystemCoreClockUpdate();
/*---------------------------------------------------------------------------------------------------------*/
/* Init I/O Multi-function */
/*---------------------------------------------------------------------------------------------------------*/
/* Set GPB multi-function pins for UART0 RXD and TXD */
SYS->PB_L_MFP &= ~(SYS_PB_L_MFP_PB0_MFP_Msk | SYS_PB_L_MFP_PB1_MFP_Msk);
SYS->PB_L_MFP |= (SYS_PB_L_MFP_PB0_MFP_UART0_TX | SYS_PB_L_MFP_PB1_MFP_UART0_RX);
/* Set Timer0 event counting/toggle out pin */
SYS->PB_H_MFP &= ~SYS_PB_H_MFP_PB8_MFP_Msk;
SYS->PB_H_MFP |= SYS_PB_H_MFP_PB8_MFP_TMR0_EXT;
/* Lock protected registers */
SYS_LockReg();
}
void SysInit(void)
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init System Clock */
/*---------------------------------------------------------------------------------------------------------*/
/* Unlock protected registers */
SYS_UnlockReg();
/* Set HCLK source form HXT and HCLK source divide 1 */
CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HXT,CLK_HCLK_CLK_DIVIDER(1));
/* Enable external 12MHz HXT, 32KHz LXT and HIRC */
CLK_EnableXtalRC(CLK_PWRCTL_HXT_EN_Msk | CLK_PWRCTL_LXT_EN_Msk | CLK_PWRCTL_HIRC_EN_Msk);
/* Waiting for clock ready */
CLK_WaitClockReady(CLK_CLKSTATUS_HXT_STB_Msk | CLK_CLKSTATUS_LXT_STB_Msk | CLK_CLKSTATUS_HIRC_STB_Msk);
/* Set HCLK frequency 32MHz */
CLK_SetCoreClock(32000000);
/* Select IP clock source */
CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART_S_HIRC, CLK_UART_CLK_DIVIDER(1));
CLK_SetModuleClock(I2C0_MODULE, 0, 0);
CLK_SetModuleClock(I2C1_MODULE, 0, 0);
/* Enable IP clock */
CLK_EnableModuleClock(UART0_MODULE);
CLK_EnableModuleClock(I2C0_MODULE);
CLK_EnableModuleClock(I2C1_MODULE);
/* Update System Core Clock */
/* User can use SystemCoreClockUpdate() to calculate PllClock, SystemCoreClock and CycylesPerUs automatically. */
SystemCoreClockUpdate();
/*---------------------------------------------------------------------------------------------------------*/
/* Init I/O Multi-function */
/*---------------------------------------------------------------------------------------------------------*/
/* Set PB multi-function pins for UART0 RXD and TXD */
SYS->PB_L_MFP &= ~(SYS_PB_L_MFP_PB0_MFP_Msk | SYS_PB_L_MFP_PB1_MFP_Msk);
SYS->PB_L_MFP |= (SYS_PB_L_MFP_PB0_MFP_UART0_TX | SYS_PB_L_MFP_PB1_MFP_UART0_RX);
/* Set multi function pin for I2C0/I2C1 */
SYS->PC_L_MFP = (SYS_PC_L_MFP_PC0_MFP_I2C0_SCL | SYS_PC_L_MFP_PC1_MFP_I2C0_SDA | SYS_PC_L_MFP_PC2_MFP_I2C1_SCL | SYS_PC_L_MFP_PC3_MFP_I2C1_SDA);
/* Lock protected registers */
SYS_LockReg();
}
/*---------------------------------------------------------------------------------------------------------*/
void SYS_Init(void)
{
/* Unlock protected registers */
SYS_UnlockReg();
/* Set HCLK source form HXT and HCLK source divide 1 */
CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HXT,CLK_HCLK_CLK_DIVIDER(1));
/* Enable external 12MHz HXT, 32KHz LXT and HIRC */
CLK_EnableXtalRC(CLK_PWRCTL_HXT_EN_Msk | CLK_PWRCTL_LXT_EN_Msk | CLK_PWRCTL_HIRC_EN_Msk);
/* Waiting for clock ready */
CLK_WaitClockReady(CLK_CLKSTATUS_HXT_STB_Msk | CLK_CLKSTATUS_LXT_STB_Msk | CLK_CLKSTATUS_HIRC_STB_Msk);
/* Set HCLK frequency 42MHz */
CLK_SetCoreClock(42000000);
/* Enable IP clock */
CLK_EnableModuleClock(UART0_MODULE);
CLK_EnableModuleClock(TMR0_MODULE);
/* Enable DAC clock */
CLK->APBCLK |= CLK_APBCLK_DAC_EN_Msk;
/* Enable DMA clock */
CLK->AHBCLK |= CLK_AHBCLK_DMA_EN_Msk;
/* Select IP clock source */
CLK_SetModuleClock(UART0_MODULE,CLK_CLKSEL1_UART_S_HXT,CLK_UART_CLK_DIVIDER(1));
/*---------------------------------------------------------------------------------------------------------*/
/* Init I/O Multi-function */
/*---------------------------------------------------------------------------------------------------------*/
/* Set PA multi-function pins for UART0 RXD and TXD */
SYS->PB_L_MFP &= ~( SYS_PB_L_MFP_PB0_MFP_Msk | SYS_PB_L_MFP_PB1_MFP_Msk);
SYS->PB_L_MFP |= (SYS_PB_L_MFP_PB0_MFP_UART0_RX | SYS_PB_L_MFP_PB1_MFP_UART0_TX );
/* Set PC.6 multi-function pin for DAC channel 0 */
SYS->PC_L_MFP &= ~(SYS_PC_L_MFP_PC6_MFP_Msk);
SYS->PC_L_MFP |= SYS_PC_L_MFP_PC6_MFP_DA_OUT0;
/* Disable digital input path for both PC.6 */
GPIO_DISABLE_DIGITAL_PATH(PC, 1 << 6);
/* Lock protected registers */
SYS_LockReg();
}
/*---------------------------------------------------------------------------------------------------------*/
void SYS_Init(void)
{
/* Unlock protected registers */
SYS_UnlockReg();
/* Set HCLK source form HXT and HCLK source divide 1 */
CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HXT,CLK_HCLK_CLK_DIVIDER(1));
/* Enable external 12MHz HXT, 32KHz LXT and HIRC */
CLK_EnableXtalRC(CLK_PWRCTL_HXT_EN_Msk | CLK_PWRCTL_LXT_EN_Msk | CLK_PWRCTL_HIRC_EN_Msk);
/* Set HCLK frequency 42MHz */
CLK_SetCoreClock(42000000);
/* Enable IP clock */
CLK_EnableModuleClock(UART0_MODULE);
/* Select IP clock source */
CLK_SetModuleClock(UART0_MODULE,CLK_CLKSEL1_UART_S_HIRC,CLK_UART_CLK_DIVIDER(1));
/*---------------------------------------------------------------------------------------------------------*/
/* Init I/O Multi-function */
/*---------------------------------------------------------------------------------------------------------*/
/* Set PA multi-function pins for UART0 RXD and TXD */
#if 0
SYS->PB_L_MFP &= ~( SYS_PB_L_MFP_PB0_MFP_Msk | SYS_PB_L_MFP_PB1_MFP_Msk);
SYS->PB_L_MFP |= (SYS_PB_L_MFP_PB0_MFP_UART0_RX | SYS_PB_L_MFP_PB1_MFP_UART0_TX );
#else
SYS->PA_H_MFP &= ~( SYS_PA_H_MFP_PA15_MFP_Msk | SYS_PA_H_MFP_PA14_MFP_Msk);
SYS->PA_H_MFP |= (SYS_PA_H_MFP_PA15_MFP_UART0_TX|SYS_PA_H_MFP_PA14_MFP_UART0_RX);
#endif
/* Set PB multi-function pins for Clock Output */
SYS->PB_H_MFP = ( SYS->PB_H_MFP & ~SYS_PB_H_MFP_PB12_MFP_Msk ) | SYS_PB_H_MFP_PB12_MFP_CKO;
/* Lock protected registers */
SYS_LockReg();
}
