- /******************************************************************************
- * [url=home.php?mod=space&uid=288409]@file[/url] main.c
- * [url=home.php?mod=space&uid=895143]@version[/url] V1.0
- * $Revision: 2 $
- * $Date: 8/20/19 11:44a $
- * [url=home.php?mod=space&uid=247401]@brief[/url] RF24L01 Sample Code
- *
- * @note
- * Copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
- *****************************************************************************/
- #include <stdio.h>
- #include "M051Series.h"
- #include "NRF_24L01.h"
- /*---------------------------------------------------------------------------*/
- /* Define */
- /*---------------------------------------------------------------------------*/
- #define TEST_COUNT 64
- /*---------------------------------------------------------------------------*/
- /* Global variables */
- /*---------------------------------------------------------------------------*/
- uint32_t g_au32SourceData[TEST_COUNT];
- uint32_t g_au32DestinationData[TEST_COUNT];
- uint32_t u32TestRevCount = 0;
- uint8_t u8RevFlag = 0;
- void delay_ms(int32_t ms)
- {
- int32_t i;
- for (i = 0; i < ms; i++)
- {
- CLK_SysTickDelay(1000);/* SysTick to generate the delay time and the UNIT is in us. */
- }
- }
- void TMR0_IRQHandler(void)
- {
- /* Clear Timer0 time-out interrupt flag */
- TIMER_ClearIntFlag(TIMER0);
- if (u8RevFlag == 1)
- {
- u8RevFlag = 0;
- }
- else
- {
- rf_ChangeCH(1);
- }
- }
- void EINT0_IRQHandler(void)
- {
- uint8_t u8Status = 0;
- /* For P3.2, clear the INT flag */
- GPIO_CLR_INT_FLAG(P3, BIT2);
- u8Status = SPI_Read(RF_STATUS);
- if (u8Status & STA_MARK_RX)
- {
- SPI_Read_Buf(RD_RX_PLOAD, au8rx_buf, TX_PLOAD_WIDTH);
- if (au8rx_buf[0] == 0xAA)
- {
- u32TestRevCount++;
- LED = ~LED;
- }
- au8rx_buf[0] = 0;
- u8RevFlag = 1;
- }
- SPI_RW_Reg(WRITE_REG + RF_STATUS, 0xff);
- }
- void SYS_Init(void)
- {
- /* Unlock protected registers */
- SYS_UnlockReg();
- /*---------------------------------------------------------------------------------------------------------*/
- /* Init System Clock */
- /*---------------------------------------------------------------------------------------------------------*/
- /* Enable external 12MHz XTAL */
- CLK_EnableXtalRC(CLK_PWRCON_XTL12M_EN_Msk);
- /* Waiting for clock ready */
- CLK_WaitClockReady(CLK_CLKSTATUS_XTL12M_STB_Msk);
- /* Switch HCLK clock source to HXT and HCLK source divide 1 */
- CLK_SetCoreClock(FREQ_50MHZ);
- /* Select HXT as the clock source of UART0 */
- CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART_S_HXT, CLK_CLKDIV_UART(1));
- /* Select HCLK as the clock source of SPI0 */
- CLK_SetModuleClock(SPI0_MODULE, CLK_CLKSEL1_SPI0_S_HCLK, MODULE_NoMsk);
- /* Enable UART peripheral clock */
- CLK_EnableModuleClock(UART0_MODULE);
- /* Enable SPI0 peripheral clock */
- CLK_EnableModuleClock(SPI0_MODULE);
- /* Select HXT as the clock source of TIME0 */
- CLK_SetModuleClock(TMR0_MODULE, CLK_CLKSEL1_TMR0_S_HXT, 0);
- /* Enable TIME peripheral clock */
- CLK_EnableModuleClock(TMR0_MODULE);
- /*---------------------------------------------------------------------------------------------------------*/
- /* Init I/O Multi-function */
- /*---------------------------------------------------------------------------------------------------------*/
- /* Set P3 multi-function pins for UART0 RXD and TXD */
- SYS->P3_MFP = SYS_MFP_P30_RXD0 | SYS_MFP_P31_TXD0;
- /* Setup SPI0 multi-function pins */
- SYS->P1_MFP = SYS_MFP_P14_SPISS0 | SYS_MFP_P15_MOSI_0 | SYS_MFP_P16_MISO_0 | SYS_MFP_P17_SPICLK0;
- /* Set P3 multi-function pins for UART0 RXD, TXD, EINT0 and EINT1 */
- SYS->P3_MFP &= ~(SYS_MFP_P32_Msk);
- SYS->P3_MFP |= (SYS_MFP_P32_INT0);
- /* Lock protected registers */
- SYS_LockReg();
- /* Update System Core Clock */
- /* User can use SystemCoreClockUpdate() to calculate SystemCoreClock and CycylesPerUs automatically. */
- SystemCoreClockUpdate();
- }
- void SPI_Init(void)
- {
- /* Configure as a master, clock idle low, 32-bit transaction,
- * drive output on falling clock edge and latch input on rising edge.
- */
- /* Set IP clock divider. SPI clock rate = 2MHz */
- SPI_Open(SPI0, SPI_MASTER, SPI_MODE_0, 8, 1000000);
- /* Enable the automatic hardware slave select function. Select the SS pin and configure as low-active. */
- SPI_EnableAutoSS(SPI0, SPI_SS, SPI_SS_ACTIVE_LOW);
- SPI_DisableAutoSS(SPI0);
- }
- int main(void)
- {
- /* 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();
- /* Configure UART0: 115200, 8-bit word, no parity bit, 1 stop bit. */
- UART_Open(UART0, 115200);
- /* Init SPI */
- SPI_Init();
- GPIO_SetMode(P0, BIT6, GPIO_PMD_OUTPUT);
- GPIO_SetMode(P3, BIT6, GPIO_PMD_OUTPUT);
- /* Configure P3.2 as EINT0 pin and enable interrupt by falling edge trigger */
- GPIO_SetMode(P3, BIT2, GPIO_PMD_INPUT);
- /* Enable interrupt de-bounce function and select de-bounce sampling cycle time is 1024 * 10 KHz clock */
- GPIO_SET_DEBOUNCE_TIME(GPIO_DBCLKSRC_HCLK, GPIO_DBCLKSEL_32);
- GPIO_ENABLE_DEBOUNCE(P3, BIT2);
- GPIO_EnableEINT0(P3, 2, GPIO_INT_FALLING);
- NVIC_EnableIRQ(EINT0_IRQn);
- /* Open Timer0 frequency to 0.5 Hz in periodic mode, and enable interrupt */
- TIMER_Open(TIMER0, TIMER_PERIODIC_MODE, 20); //50ms
- TIMER_EnableInt(TIMER0);
- NVIC_EnableIRQ(TMR0_IRQn);
- TIMER_Start(TIMER0);
- delay_ms(100);
- init_nrf24l01_io();
- delay_ms(500);
- printf("Receive READY!\r\n");
- ifnnrf_CLERN_ALL();
- ifnnrf_rx_mode();
- u8sta = SPI_Read(RF_SETUP);
- u8sta = SPI_Read(RF_CH);
- u8sta = SPI_Read(EN_AA);
- u8sta = SPI_Read(RF_SETUP);
- ifnnrf_rx_mode();
- while (1)
- {
- u8sta = 0;
- delay_ms(1000);
- printf("u8CurCH=%d,u32TestRevCount=%d\n\r", u8CurCH, u32TestRevCount);
- }
- }
- /*** (C) COPYRIGHT 2019 Nuvoton Technology Corp. ***/
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