/**************************************************************************//**
* [url=home.php?mod=space&uid=288409]@file[/url] main.c
* [url=home.php?mod=space&uid=895143]@version[/url] V1.00
* $Revision: 3 $
* $Date: 19/06/20 10:26a $
* [url=home.php?mod=space&uid=247401]@brief[/url] NUC230_240 Series GPIO Driver Sample Code
*
* [url=home.php?mod=space&uid=536309]@NOTE[/url] PA0~PA3(PIN71~PIN74) will output signal to driver stepmotor
* Copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
******************************************************************************/
#include <stdio.h>
#include "NUC230_240.h"
#define PLL_CLOCK 72000000
#define d360 (4096)
#define d180 (4096/2)
#define d90 (4096/4)
#define d45 (4096/8)
unsigned char Table_StepMotor_Output[8] = {0x08, 0x0C, 0x04, 0x06, 0x02, 0x03, 0x01, 0x09};
void SYS_Init(void)
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init System Clock */
/*---------------------------------------------------------------------------------------------------------*/
/* Enable Internal RC 22.1184MHz and HXT clock */
CLK_EnableXtalRC(CLK_PWRCON_OSC22M_EN_Msk | CLK_PWRCON_XTL12M_EN_Msk);
/* Waiting for Internal RC and HXT clock ready */
CLK_WaitClockReady(CLK_CLKSTATUS_OSC22M_STB_Msk | CLK_CLKSTATUS_XTL12M_STB_Msk);
/* Set core clock as PLL_CLOCK from PLL */
CLK_SetCoreClock(PLL_CLOCK);
/* Enable UART module clock */
CLK_EnableModuleClock(UART0_MODULE);
/* Select UART module clock source */
CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART_S_HXT, CLK_CLKDIV_UART(1));
/*---------------------------------------------------------------------------------------------------------*/
/* Init I/O Multi-function */
/*---------------------------------------------------------------------------------------------------------*/
/* Set GPB multi-function pins for UART0 RXD and TXD */
SYS->GPB_MFP &= ~(SYS_GPB_MFP_PB0_Msk | SYS_GPB_MFP_PB1_Msk);
SYS->GPB_MFP |= (SYS_GPB_MFP_PB0_UART0_RXD | SYS_GPB_MFP_PB1_UART0_TXD);
}
void UART0_Init()
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init UART */
/*---------------------------------------------------------------------------------------------------------*/
/* Reset UART0 */
SYS_ResetModule(UART0_RST);
/* Configure UART0 and set UART0 Baudrate */
UART_Open(UART0, 115200);
}
void CW_MOTOR(unsigned int deg)
{
int i = 0, j = 0;
for (j = 0; j < deg; j += 8)
{
for (i = 0; i < 8; i++) // Clockwise rotation
{
PA->DOUT = Table_StepMotor_Output[i];
CLK_SysTickDelay(5000);
}
}
}
void CCW_MOTOR(unsigned int deg)
{
int i = 0, j = 0;
for (j = 0; j < deg; j += 8)
{
for (i = 7; i >= 0; i--) // Anticlockwise rotation
{
PA->DOUT = Table_StepMotor_Output[i];
CLK_SysTickDelay(5000);
}
}
}
/*---------------------------------------------------------------------------------------------------------*/
/* MAIN function */
/*---------------------------------------------------------------------------------------------------------*/
int main(void)
{
uint32_t Cnt ;
/* Unlock protected registers */
SYS_UnlockReg();
/* Init System, peripheral clock and multi-function I/O */
SYS_Init();
/* Lock protected registers */
SYS_LockReg();
/* Init UART0 for printf */
UART0_Init();
/* PA0~PA3(PIN71~PIN74) is configured as output to driver stepmotor */
GPIO_SetMode(PA, BIT0, GPIO_PMD_OUTPUT);
GPIO_SetMode(PA, BIT1, GPIO_PMD_OUTPUT);
GPIO_SetMode(PA, BIT2, GPIO_PMD_OUTPUT);
GPIO_SetMode(PA, BIT3, GPIO_PMD_OUTPUT);
while (1)
{
CW_MOTOR(d360);
for (Cnt = 0; Cnt < 10000000; ++Cnt) __nop();
CCW_MOTOR(d180);
for (Cnt = 0; Cnt < 100000000; ++Cnt) __nop();
};
}
/*** (C) COPYRIGHT 2014 Nuvoton Technology Corp. ***/
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