300 lines
13 KiB
C++
300 lines
13 KiB
C++
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/****************************************************************************
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* @file main.c
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* @version V3.00
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* $Revision: 6 $
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* $Date: 15/09/02 10:04a $
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* @brief Use ADINT interrupt to do the ADC continuous scan conversion.
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* @note
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* Copyright (C) 2013~2015 Nuvoton Technology Corp. All rights reserved.
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*
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******************************************************************************/
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#include "stdio.h"
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#include "M451Series.h"
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#include "ssd1306.h"
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#include "global.h"
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#define DEBUG_ENABLE_SEMIHOST true
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#define PLLCTL_SETTING CLK_PLLCTL_72MHz_HXT
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#define PLL_CLOCK 72000000
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/*---------------------------------------------------------------------------------------------------------*/
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/* Define global variables and constants */
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/*---------------------------------------------------------------------------------------------------------*/
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volatile uint32_t g_u32AdcIntFlag, g_u32COVNUMFlag = 0;
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/*---------------------------------------------------------------------------------------------------------*/
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/* Define functions prototype */
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/*---------------------------------------------------------------------------------------------------------*/
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int32_t main(void);
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void EADC_FunctionTest(void);
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void PWMInit (){
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CLK_EnableModuleClock(PWM0_MODULE);
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SYS_ResetModule(PWM0_RST);
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/* PWM clock frequency can be set equal or double to HCLK by choosing case 1 or case 2 */
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/* case 1.PWM clock frequency is set equal to HCLK: select PWM module clock source as PCLK */
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CLK_SetModuleClock(PWM0_MODULE, CLK_CLKSEL2_PWM0SEL_PCLK0, NULL);
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/*---------------------------------------------------------------------------------------------------------*/
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/* Init I/O Multi-function */
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/*---------------------------------------------------------------------------------------------------------*/
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/* Set PD multi-function pins for UART0 RXD and TXD */
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SYS->GPD_MFPL &= ~(SYS_GPD_MFPL_PD0MFP_Msk | SYS_GPD_MFPL_PD1MFP_Msk);
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SYS->GPD_MFPL |= (SYS_GPD_MFPL_PD0MFP_UART0_RXD | SYS_GPD_MFPL_PD1MFP_UART0_TXD);
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/* Set PC multi-function pins for PWM0 Channel0~3 */
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SYS->GPC_MFPL = (SYS->GPC_MFPL & (~SYS_GPC_MFPL_PC0MFP_Msk));
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SYS->GPC_MFPL |= SYS_GPC_MFPL_PC0MFP_PWM0_CH0;
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SYS->GPC_MFPL = (SYS->GPC_MFPL & (~SYS_GPC_MFPL_PC1MFP_Msk));
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SYS->GPC_MFPL |= SYS_GPC_MFPL_PC1MFP_PWM0_CH1;
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SYS->GPC_MFPL = (SYS->GPC_MFPL & (~SYS_GPC_MFPL_PC2MFP_Msk));
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SYS->GPC_MFPL |= SYS_GPC_MFPL_PC2MFP_PWM0_CH2;
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SYS->GPC_MFPL = (SYS->GPC_MFPL & (~SYS_GPC_MFPL_PC3MFP_Msk));
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SYS->GPC_MFPL |= SYS_GPC_MFPL_PC3MFP_PWM0_CH3;
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/*Set Pwm mode as complementary mode*/
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PWM_ENABLE_COMPLEMENTARY_MODE(PWM0);
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// PWM0 channel 0 frequency is 100Hz, duty 30%,
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PWM_ConfigOutputChannel(PWM0, 0, StepperFREQ, 30);
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SYS_UnlockReg();
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PWM_EnableDeadZone(PWM0, 0, 400);
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SYS_LockReg();
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// PWM0 channel 2 frequency is 300Hz, duty 50%
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PWM_ConfigOutputChannel(PWM0, 2, StepperFREQ, 50);
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SYS_UnlockReg();
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PWM_EnableDeadZone(PWM0, 2, 200);
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SYS_LockReg();
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// Enable output of PWM0 channel 0~3
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PWM_EnableOutput(PWM0, 0xF);
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// Enable PWM0 channel 0 period interrupt, use channel 0 to measure time.
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PWM_EnablePeriodInt(PWM0, 0, 0);
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NVIC_EnableIRQ(PWM0P0_IRQn);
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// Start
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PWM_Start(PWM0, 0xF);
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}
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void I2CInit(){
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/* Enable I2C0 module clock */
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CLK_EnableModuleClock(I2C0_MODULE);
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/*---------------------------------------------------------------------------------------------------------*/
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/* Init I/O Multi-function */
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/*---------------------------------------------------------------------------------------------------------*/
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SYS->GPD_MFPL &= ~SYS_GPD_MFPL_PD4MFP_Msk;
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SYS->GPD_MFPL |= SYS_GPD_MFPL_PD4MFP_I2C0_SDA;
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SYS->GPD_MFPL &= ~SYS_GPD_MFPL_PD5MFP_Msk;
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SYS->GPD_MFPL |= SYS_GPD_MFPL_PD5MFP_I2C0_SCL;
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I2C_Open(I2C0,100000);
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printf("I2C clock %d Hz\n", I2C_GetBusClockFreq(I2C0));
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I2C_SetSlaveAddr(I2C0, 0, 0x78, 0); /* Slave Address : 0x15 */
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SYS_LockReg();
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}
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void SYS_Init(void)
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{
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/*---------------------------------------------------------------------------------------------------------*/
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/* Init System Clock */
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/*---------------------------------------------------------------------------------------------------------*/
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/* Enable HIRC clock (Internal RC 22.1184MHz) */
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CLK_EnableXtalRC(CLK_PWRCTL_HIRCEN_Msk);
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/* Wait for HIRC clock ready */
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CLK_WaitClockReady(CLK_STATUS_HIRCSTB_Msk);
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/* Select HCLK clock source as HIRC and and HCLK source divider as 1 */
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CLK_SetHCLK(CLK_CLKSEL0_HCLKSEL_HIRC, CLK_CLKDIV0_HCLK(1));
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/* Set PLL to Power-down mode and PLLSTB bit in CLK_STATUS register will be cleared by hardware.*/
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CLK_DisablePLL();
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/* Enable HXT clock (external XTAL 12MHz) */
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CLK_EnableXtalRC(CLK_PWRCTL_HXTEN_Msk);
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/* Wait for HXT clock ready */
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CLK_WaitClockReady(CLK_STATUS_HXTSTB_Msk);
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/* Set core clock as PLL_CLOCK from PLL */
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CLK_SetCoreClock(PLL_CLOCK);
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/* Enable UART module clock */
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CLK_EnableModuleClock(UART0_MODULE);
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/* Select UART module clock source as HXT and UART module clock divider as 1 */
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CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UARTSEL_HXT, CLK_CLKDIV0_UART(1));
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/* Enable EADC module clock */
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CLK_EnableModuleClock(EADC_MODULE);
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/* EADC clock source is 72MHz, set divider to 8, ADC clock is 72/8 MHz */
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CLK_SetModuleClock(EADC_MODULE, 0, CLK_CLKDIV0_EADC(8));
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/*---------------------------------------------------------------------------------------------------------*/
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/* Init I/O Multi-function */
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/*---------------------------------------------------------------------------------------------------------*/
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/* Set PD multi-function pins for UART0 RXD and TXD */
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SYS->GPD_MFPL &= ~(SYS_GPD_MFPL_PD0MFP_Msk | SYS_GPD_MFPL_PD1MFP_Msk);
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SYS->GPD_MFPL |= (SYS_GPD_MFPL_PD0MFP_UART0_RXD | SYS_GPD_MFPL_PD1MFP_UART0_TXD);
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/* Configure the GPB0 - GPB3 ADC analog input pins. */
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SYS->GPB_MFPL &= ~(SYS_GPB_MFPL_PB0MFP_Msk | SYS_GPB_MFPL_PB1MFP_Msk
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| SYS_GPB_MFPL_PB3MFP_Msk); //SYS_GPB_MFPL_PB2MFP_Msk
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SYS->GPB_MFPL |= (SYS_GPB_MFPL_PB0MFP_EADC_CH0 | SYS_GPB_MFPL_PB1MFP_EADC_CH1
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| SYS_GPB_MFPL_PB3MFP_EADC_CH3); //SYS_GPB_MFPL_PB2MFP_EADC_CH2
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/* Disable the GPB0 - GPB3 digital input path to avoid the leakage current. */
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GPIO_DISABLE_DIGITAL_PATH(PB, 0xD);
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I2CInit();
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PWMInit();
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}
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void UART0_Init()
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{
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/*---------------------------------------------------------------------------------------------------------*/
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/* Init UART */
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/*---------------------------------------------------------------------------------------------------------*/
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/* Reset UART module */
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SYS_ResetModule(UART0_RST);
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/* Configure UART0 and set UART0 baud rate */
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UART_Open(UART0, 115200);
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}
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unsigned int x ;
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/*---------------------------------------------------------------------------------------------------------*/
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/* EADC function test */
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/*---------------------------------------------------------------------------------------------------------*/
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void EADC_FunctionTest()
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{
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uint8_t u8Option, u32SAMPLECount = 0;
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int32_t i32ConversionData[8] = {0};
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printf("\n");
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printf("+----------------------------------------------------------------------+\n");
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printf("| ADINT trigger mode test |\n");
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printf("+----------------------------------------------------------------------+\n");
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printf("\nIn this test, software will get 2 cycles of conversion result from the specified channels.\n");
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/* Set the ADC internal sampling time, input mode as single-end and enable the A/D converter */
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EADC_Open(EADC, EADC_CTL_DIFFEN_SINGLE_END);
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EADC_SetInternalSampleTime(EADC, 6);
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/* Configure the sample 4 module for analog input channel 0 and enable ADINT0 trigger source */
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EADC_ConfigSampleModule(EADC, 4, EADC_ADINT0_TRIGGER, 0);
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/* Configure the sample 5 module for analog input channel 1 and enable ADINT0 trigger source */
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EADC_ConfigSampleModule(EADC, 5, EADC_ADINT0_TRIGGER, 1);
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/* Configure the sample 6 module for analog input channel 2 and enable ADINT0 trigger source */
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EADC_ConfigSampleModule(EADC, 6, EADC_ADINT0_TRIGGER, 2);
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/* Configure the sample 7 module for analog input channel 3 and enable ADINT0 trigger source */
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EADC_ConfigSampleModule(EADC, 7, EADC_ADINT0_TRIGGER, 3);
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/* Clear the A/D ADINT0 interrupt flag for safe */
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EADC_CLR_INT_FLAG(EADC, 0x1);
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/* Enable the sample module 7 interrupt */
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EADC_ENABLE_INT(EADC, 0x1);//Enable sample module A/D ADINT0 interrupt.
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EADC_ENABLE_SAMPLE_MODULE_INT(EADC, 0, (0x1 << 7));//Enable sample module 7 interrupt.
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//NVIC_EnableIRQ(ADC00_IRQn);
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while(1)
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{
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/* Reset the ADC indicator and trigger sample module 7 to start A/D conversion */
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g_u32AdcIntFlag = 0;
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g_u32COVNUMFlag = 0;
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EADC_START_CONV(EADC, (0x1 << 7));
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/* Disable the sample module 7 interrupt */
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//EADC_DISABLE_SAMPLE_MODULE_INT(EADC, 0, (0x1 << 7));
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/* Get the conversion result of the sample module */
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for(u32SAMPLECount = 0; u32SAMPLECount < 4; u32SAMPLECount++)
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i32ConversionData[u32SAMPLECount] = EADC_GET_CONV_DATA(EADC, (u32SAMPLECount + 4));
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x = EADC_GET_DATA_VALID_FLAG(EADC, 0xF0);
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/* Wait conversion done */
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while(EADC_GET_DATA_VALID_FLAG(EADC, 0xF0) != 0xF0){
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x = EADC_GET_DATA_VALID_FLAG(EADC, 0xF0);
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x++;
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}
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/* Get the conversion result of the sample module */
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for(u32SAMPLECount = 4; u32SAMPLECount < 8; u32SAMPLECount++)
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i32ConversionData[u32SAMPLECount] = EADC_GET_CONV_DATA(EADC, u32SAMPLECount);
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char dat[36] = {0};
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sprintf(dat,"pwm freq:%d",EADC_GET_CONV_DATA(EADC, 4)/41);
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PWM_ConfigOutputChannel(PWM0, 2, EADC_GET_CONV_DATA(EADC, 4)/41, 50);
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print_Line(0, dat);
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for(g_u32COVNUMFlag = 0; (g_u32COVNUMFlag) < 8; g_u32COVNUMFlag++)
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printf("Conversion result of channel %d: 0x%X (%d)\n", (g_u32COVNUMFlag % 4), i32ConversionData[g_u32COVNUMFlag], i32ConversionData[g_u32COVNUMFlag]);
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}
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}
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void InitKeys(){
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/* Configure PB.2 as Input mode and enable interrupt by rising edge trigger */
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GPIO_SetMode(PB, BIT2, GPIO_MODE_QUASI);
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PB->DINOFF = 0x04;
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GPIO_EnableInt(PB, 2, GPIO_INT_FALLING);
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NVIC_EnableIRQ(GPB_IRQn);
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/* Configure PC.5 as Quasi-bidirection mode and enable interrupt by falling edge trigger */
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GPIO_SetMode(PC, BIT5, GPIO_MODE_QUASI);
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GPIO_EnableInt(PC, 5, GPIO_INT_FALLING);
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NVIC_EnableIRQ(GPC_IRQn);
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/* Enable interrupt de-bounce function and select de-bounce sampling cycle time is 1024 clocks of LIRC clock */
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GPIO_SET_DEBOUNCE_TIME(GPIO_DBCTL_DBCLKSRC_LIRC, GPIO_DBCTL_DBCLKSEL_1024);
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GPIO_ENABLE_DEBOUNCE(PB, BIT2);
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GPIO_ENABLE_DEBOUNCE(PC, BIT5);
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}
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/*---------------------------------------------------------------------------------------------------------*/
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/* Main Function */
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/*---------------------------------------------------------------------------------------------------------*/
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int32_t main(void)
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{
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/* Unlock protected registers */
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SYS_UnlockReg();
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/* Init System, IP clock and multi-function I/O */
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SYS_Init();
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/* Lock protected registers */
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SYS_LockReg();
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/* Init UART0 for printf */
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UART0_Init();
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InitKeys();
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/*---------------------------------------------------------------------------------------------------------*/
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/* SAMPLE CODE */
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/*---------------------------------------------------------------------------------------------------------*/
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//clear_LCD();
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//Init_LCD();
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//EADC_FunctionTest();
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while(1);
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}
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