- /**************************************************************************//**
- * [url=home.php?mod=space&uid=288409]@file[/url] main.c
- * [url=home.php?mod=space&uid=895143]@version[/url] V3.00
- * [url=home.php?mod=space&uid=247401]@brief[/url] Demonstrate how to use BPWM counter synchronous start function.
- *
- * [url=home.php?mod=space&uid=17282]@CopyRight[/url] (C) 2016 Nuvoton Technology Corp. All rights reserved.
- ******************************************************************************/
- #include <stdio.h>
- #include "NuMicro.h"
- #define PLL_CLOCK 192000000
- void SYS_Init(void)
- {
- /* Set XT1_OUT(PF.2) and XT1_IN(PF.3) to input mode */
- PF->MODE &= ~(GPIO_MODE_MODE2_Msk | GPIO_MODE_MODE3_Msk);
- /* Enable HXT clock (external XTAL 12MHz) */
- CLK_EnableXtalRC(CLK_PWRCTL_HXTEN_Msk);
- /* Wait for HXT clock ready */
- CLK_WaitClockReady(CLK_STATUS_HXTSTB_Msk);
- /* Set core clock as PLL_CLOCK from PLL */
- CLK_SetCoreClock(PLL_CLOCK);
- /* Set PCLK0 = PCLK1 = HCLK/2 */
- CLK->PCLKDIV = (CLK_PCLKDIV_APB0DIV_DIV2 | CLK_PCLKDIV_APB1DIV_DIV2);
- /* Enable UART module clock */
- CLK_EnableModuleClock(UART0_MODULE);
- /* Select UART module clock source */
- CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART0SEL_HXT, CLK_CLKDIV0_UART0(1));
- /* Enable BPWM0 clock source */
- CLK_EnableModuleClock(BPWM0_MODULE);
- /* Select BPWM module clock source */
- CLK_SetModuleClock(BPWM0_MODULE, CLK_CLKSEL2_BPWM0SEL_PCLK0, 0);
- /* Update System Core Clock */
- /* User can use SystemCoreClockUpdate() to calculate PllClock, SystemCoreClock and CycylesPerUs automatically. */
- SystemCoreClockUpdate();
- /* Set GPB multi-function pins for UART0 RXD and TXD */
- SYS->GPB_MFPH &= ~(SYS_GPB_MFPH_PB12MFP_Msk | SYS_GPB_MFPH_PB13MFP_Msk);
- SYS->GPB_MFPH |= (SYS_GPB_MFPH_PB12MFP_UART0_RXD | SYS_GPB_MFPH_PB13MFP_UART0_TXD);
- /* Set PA.0~5 multi-function pin for BPWM0 channel 0~5 */
- SYS->GPA_MFPL = (SYS->GPA_MFPL & ~SYS_GPA_MFPL_PA0MFP_Msk) | SYS_GPA_MFPL_PA0MFP_BPWM0_CH0;
- SYS->GPA_MFPL = (SYS->GPA_MFPL & ~SYS_GPA_MFPL_PA1MFP_Msk) | SYS_GPA_MFPL_PA1MFP_BPWM0_CH1;
- SYS->GPA_MFPL = (SYS->GPA_MFPL & ~SYS_GPA_MFPL_PA2MFP_Msk) | SYS_GPA_MFPL_PA2MFP_BPWM0_CH2;
- SYS->GPA_MFPL = (SYS->GPA_MFPL & ~SYS_GPA_MFPL_PA3MFP_Msk) | SYS_GPA_MFPL_PA3MFP_BPWM0_CH3;
- SYS->GPA_MFPL = (SYS->GPA_MFPL & ~SYS_GPA_MFPL_PA4MFP_Msk) | SYS_GPA_MFPL_PA4MFP_BPWM0_CH4;
- SYS->GPA_MFPL = (SYS->GPA_MFPL & ~SYS_GPA_MFPL_PA5MFP_Msk) | SYS_GPA_MFPL_PA5MFP_BPWM0_CH5;
- }
- void UART0_Init()
- {
- /* Configure UART0 and set UART0 baud rate */
- UART_Open(UART0, 115200);
- }
- int32_t main(void)
- {
- /* Unlock protected registers */
- SYS_UnlockReg();
- /* Init System, IP clock and multi-function I/O */
- SYS_Init();
- /* Lock protected registers */
- SYS_LockReg();
- /* Init UART to 115200-8n1 for print message */
- UART0_Init();
- printf("+------------------------------------------------------------------------+\n");
- printf("| BPWM Driver Sample Code |\n");
- printf("| |\n");
- printf("+------------------------------------------------------------------------+\n");
- printf(" This sample code will output waveform with BPWM0 channel 0~5 at the same time.\n");
- printf(" I/O configuration:\n");
- printf(" waveform output pin: BPWM0_CH0(PA.0), BPWM0_CH1(PA.1), BPWM0_CH2(PA.2), BPWM0_CH3(PA.3), BPWM0_CH4(PA.4), BPWM0_CH5(PA.5)\n");
- printf("Press any key to start.\n");
- getchar();
- /* BPWM0 channel 0~5 frequency and duty configuration are as follows */
- BPWM_ConfigOutputChannel(BPWM0, 0, 1000, 50);
- BPWM_ConfigOutputChannel(BPWM0, 1, 1000, 50);
- BPWM_ConfigOutputChannel(BPWM0, 2, 1000, 50);
- BPWM_ConfigOutputChannel(BPWM0, 3, 1000, 50);
- BPWM_ConfigOutputChannel(BPWM0, 4, 1000, 50);
- BPWM_ConfigOutputChannel(BPWM0, 5, 1000, 50);
- /* Enable counter synchronous start function for BPWM0 channel 0~5 */
- BPWM_ENABLE_TIMER_SYNC(BPWM0, 0x3F, BPWM_SSCTL_SSRC_BPWM0);
- /* Enable output of BPWM0 channel 0~5 */
- BPWM_EnableOutput(BPWM0, 0x3F);
- /* Trigger BPWM counter synchronous start by BPWM0 */
- BPWM_TRIGGER_SYNC_START(BPWM0);
- while(1);
- }
- /*** (C) COPYRIGHT 2016 Nuvoton Technology Corp. ***/
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