- /**************************************************************************//**
- * [url=home.php?mod=space&uid=288409]@file[/url] main.c
- * [url=home.php?mod=space&uid=895143]@version[/url] V1.00
- * $Revision: 1 $
- * $Date: 14/07/15 2:52p $
- * [url=home.php?mod=space&uid=247401]@brief[/url] ISD9100 General Purpose I/O Driver Sample Code
- *
- * @note
- * Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved.
- *
- ******************************************************************************/
- #include <stdio.h>
- #include "isd9100.h"
- #include "gpio.h"
- void GPAB_IRQHandler(void)
- {
- static uint32_t Count=0;
-
- /* To check if PB2 interrupt occurred */
- if (PA->INTSRC & BIT15)
- {
- PA->INTSRC = BIT15;
- printf("PA15 INT occurred. %d\n",Count);
- }
- if (PB->INTSRC & BIT7)
- {
- PB->INTSRC = BIT7;
- printf("PB7 INT occurred. %d\n",Count);
- }
- Count++;
- }
- void SYS_Init(void)
- {
- /*---------------------------------------------------------------------------------------------------------*/
- /* Init System Clock */
- /*---------------------------------------------------------------------------------------------------------*/
- /* Unlock protected registers */
- SYS_UnlockReg();
- /* Enable External XTL32K */
- CLK_EnableXtalRC(CLK_PWRCTL_LXTEN_Msk);
- /* Enable External OSC49M */
- CLK_EnableXtalRC(CLK_PWRCTL_HIRCEN_Msk);
-
- /* Enable External OSC10K */
- CLK_EnableXtalRC(CLK_PWRCTL_LIRCEN_Msk);
-
- /* Switch HCLK clock source to HXT */
- CLK_SetHCLK(CLK_CLKSEL0_HCLKSEL_HIRC, CLK_CLKSEL0_HIRCFSEL_48M, CLK_CLKDIV0_HCLK(1));
- /* Enable IP clock */
- CLK_EnableModuleClock(UART_MODULE);
- /* Update System Core Clock */
- /* User can use SystemCoreClockUpdate() to calculate SystemCoreClock. */
- SystemCoreClockUpdate();
- /*---------------------------------------------------------------------------------------------------------*/
- /* Init I/O Multi-function */
- /*---------------------------------------------------------------------------------------------------------*/
- /* Set GPA multi-function pins for UART0 RXD and TXD */
- SYS->GPA_MFP = (SYS->GPA_MFP & (~SYS_GPA_MFP_PA8MFP_Msk) ) | SYS_GPA_MFP_PA8MFP_UART_TX;
- SYS->GPA_MFP = (SYS->GPA_MFP & (~SYS_GPA_MFP_PA9MFP_Msk) ) | SYS_GPA_MFP_PA9MFP_UART_RX;
- /* Lock protected registers */
- SYS_LockReg();
- }
- void UART_Init(void)
- {
- /*---------------------------------------------------------------------------------------------------------*/
- /* Init UR */
- /*---------------------------------------------------------------------------------------------------------*/
- /* Reset IP */
- SYS_ResetModule(UART0_RST);
- /* Configure UART0 and set UART0 Baudrate(115200) */
- UART_Open( UART0,115200 );
- }
- /*---------------------------------------------------------------------------------------------------------*/
- /* MAIN function */
- /*---------------------------------------------------------------------------------------------------------*/
- int main (void)
- {
- int32_t i32Err;
- uint16_t PB7;
- uint32_t count=0;
- /* Lock protected registers */
- if(SYS->REGLCTL == 1) // In end of main function, program issued CPU reset and write-protection will be disabled.
- SYS_LockReg();
- /* Init System, IP clock and multi-function I/O
- In the end of SYS_Init() will issue SYS_LockReg()
- to lock protected register. If user want to write
- protected register, please issue SYS_UnlockReg()
- to unlock protected register if necessary */
- SYS_Init();
- /* Init UART0 for printf */
- UART_Init();
- printf("\n\nCPU [url=home.php?mod=space&uid=72445]@[/url] %dHz\n", SystemCoreClock);
- printf("+-------------------------------------+ \n");
- printf("| GPIO Driver Sample Code | \n");
- printf("+-------------------------------------+ \n");
- /*-----------------------------------------------------------------------------------------------------*/
- /* GPIO Basic Mode Test --- Use Pin Data Input/Output to control GPIO pin */
- /*-----------------------------------------------------------------------------------------------------*/
- printf(" >> Please connect PA.15 and PB.7 first << \n");
- printf(" Press any key to start test by using [Pin Data Input/Output Control] \n\n");
- //getchar();
- /* Configure PA.15 as Output mode and PB.7 as Input mode then close it */
- GPIO_SetMode(PA, BIT15, GPIO_MODE_OUTPUT);
- GPIO_SetMode(PB, BIT7, GPIO_MODE_INPUT);
-
- i32Err = 0;
- printf(" GPIO Output/Input test ...... \n");
- /* Use Pin Data Input/Output Control to pull specified I/O or get I/O pin status */
- GPIO_SET_OUT_DATA(PA, 0x00); // PA15=0
- PB7 = GPIO_GET_IN_DATA(PB) & 0x80;
- if (PB7 != 0) {
- i32Err = 1;
- }
- GPIO_SET_OUT_DATA(PA, 0x8000); // PA15=1
- PB7 = GPIO_GET_IN_DATA(PB) & 0x80;
- if (PB7 != 0x80) {
- i32Err = 1;
- }
- if ( i32Err ) {
- printf(" [FAIL] --- Please make sure PA.15 and PB.7 are connected. \n");
- } else {
- printf(" [OK] \n");
- }
- /* Configure PA.15 and PB.7 to default Quasi-bidirectional mode */
- GPIO_SetMode(PA, BIT15, GPIO_MODE_QUASI);
- GPIO_SetMode(PB, BIT7, GPIO_MODE_QUASI);
- /*-----------------------------------------------------------------------------------------------------*/
- /* GPIO Interrupt Function Test */
- /*-----------------------------------------------------------------------------------------------------*/
- printf("\n PA15, PB7 are used to test interrupt\n and control LEDs(PA12,PA13,PB14)\n");
- /*Configure PA, PB for LED control */
- GPIO_SetMode(PA, BIT12, GPIO_MODE_OUTPUT);
- GPIO_SetMode(PA, BIT13, GPIO_MODE_OUTPUT);
- GPIO_SetMode(PB, BIT14, GPIO_MODE_OUTPUT);
- GPIO_SET_OUT_DATA(PA, ~0x1000);
- GPIO_SET_OUT_DATA(PB, ~0x0000);
- /* Configure PA15 as Input mode and enable interrupt by rising edge trigger */
- GPIO_SetMode(PA, BIT15, GPIO_MODE_INPUT);
- GPIO_EnableInt(PA, 15, GPIO_INT_RISING);
- NVIC_EnableIRQ(GPAB_IRQn);
- /* Configure PB7 as Quasi-bi-direction mode and enable interrupt by both rising and falling edge trigger */
- GPIO_SetMode(PB, BIT7, GPIO_MODE_QUASI);
- GPIO_EnableInt(PB, 7, GPIO_INT_BOTH_EDGE);
-
- NVIC_EnableIRQ(GPAB_IRQn);
- /* Enable interrupt de-bounce function and select de-bounce sampling cycle time */
- GPIO_SET_DEBOUNCE_TIME(GPIO_DBCTL_DBCLKSRC_HCLK, GPIO_DBCTL_DBCLKSEL_1);
- GPIO_ENABLE_DEBOUNCE(PA, BIT15);
- GPIO_ENABLE_DEBOUNCE(PB, BIT7);
- /* Waiting for interrupts */
- while (1)
- {
- GPIO_SET_OUT_DATA(PA, ~((count>>14)&0xf000));
- GPIO_SET_OUT_DATA(PB, ~((count>>14)&0x80));
- count++;
- }
- }