193 lines
5.6 KiB
C
193 lines
5.6 KiB
C
/**
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******************************************************************************
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* @file board.c
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* @author SRG
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* @version V1.0.0
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* @date 2020-03-17
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* @brief
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2020 FudanMicroelectronics.
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* All rights reserved.</center></h2>
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*
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******************************************************************************
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*/
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#include "board.h"
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#include "READER.h"
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#include "fm15l0xx.h"
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#include "fm15l0xx_ll_cmu.h"
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#include "fm15l0xx_ll_gpio.h"
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#include "fm15l0xx_ll_uart.h"
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#include "fm15l0xx_ll_spi.h"
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#include "fm15l0xx_ll_svd.h"
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#include "fm15l0xx_ll_rng.h"
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// 判断VDD是否低于阈值
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int Vdd_is_Low( void )
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{
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return (!LL_SVD_IsActiveFlag_SVDR() );
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}
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void SVD_Init( void )
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{
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LL_SVD_EnableSVDDigitalFilter(); // 使能数字滤波，间隔检测必须开启
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LL_SVD_SetSVDMode( LL_SVD_SVDMOD_INTERVAL_ON ); // 间隔检测
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LL_SVD_SetSVDInterval( LL_SVD_SVDITVL_62p5ms ); // 检测间隔62.5ms
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LL_SVD_DisableV1P0(); // 关闭1V基准电压
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LL_SVD_EnableV0P95(); // 使用基准电压：0.95V
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LL_SVD_SetSVDLevel( LL_SVD_SVDLVL_LEVEL10 ); // 检测阈值等级10 - 阈值3.614V
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LL_SVD_EnableSVD();
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}
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void RNG_Init( void )
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{
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LL_CMU_EnablePeriphBusClock_RNG(); // Enable bus clock(RCHF)
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LL_CMU_EnableClock_RNG(); // Enable RNG work clock
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LL_CMU_SetClockPrescaler_RNG( LL_CMU_PERPRSC_2 ); // 4MHz: RCHF / 2，时钟频率过高会导致SFAIL错误
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LL_RNG_EnableNoiseSource();
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LL_RNG_Enable();
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}
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uint32_t Get_RandomNumber( void )
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{
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while ( 1 )
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{
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if ( LL_RNG_IsDataReady() || LL_RNG_IsActiveFlag_SFAIL() )
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{
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if ( LL_RNG_IsActiveFlag_SFAIL() )
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{
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// 清空错误标志
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LL_RNG_ClearFlag_SFAIL();
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LL_RNG_GetRandomData();
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}
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else
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{
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break; // 获取成功
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}
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}
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}
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return (LL_RNG_GetRandomData());
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}
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/*********************************************************************************************************
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** 函数名称: GPIO_NVIC_Init
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** 函数功能: 部分引脚的中断配置
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** 输入参数: 无
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** 输出参数: 无
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** 返回值: 无
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*********************************************************************************************************/
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void GPIO_NVIC_Init( void )
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{
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LL_CMU_EnableClock_EXTI();
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//触摸芯片IRQ中断
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LL_EXTI_SetEXTISelection( LL_EXTI_LINE_0, LL_EXTI_SELECTION_3 ); // PA3
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LL_EXTI_SetEXTIEdgeTrig( LL_EXTI_LINE_0, LL_EXTI_EDS_FALLING ); // Falling
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//FM17读卡芯片IRQ中断
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LL_EXTI_SetEXTISelection( LL_EXTI_LINE_1, LL_EXTI_SELECTION_3 ); // PA7
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LL_EXTI_SetEXTIEdgeTrig( LL_EXTI_LINE_1, LL_EXTI_EDS_FALLING ); // Falling
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NVIC_EnableIRQ( GPIO_IRQn );
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}
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void GPIO_Init( void )
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{
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LL_CMU_EnablePeriphBusClock_GPIO(); // Bus clock enable
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LL_GPIO_SetPinMode( GPIOA, LL_GPIO_Pin12, LL_GPIO_PINxMODE_DIGITAL ); // PA12 Digital function - UART1 RX
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LL_GPIO_SetPinDigitalFunc( GPIOA, LL_GPIO_Pin12, LL_GPIO_PinDFS0 );
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LL_GPIO_SetPinMode( GPIOA, LL_GPIO_Pin13, LL_GPIO_PINxMODE_DIGITAL ); // PA13 Digital function - UART1 TX
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LL_GPIO_SetPinDigitalFunc( GPIOA, LL_GPIO_Pin13, LL_GPIO_PinDFS0 );
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LL_GPIO_SetPinMode( LED_GPIO, LED1_PIN, LL_GPIO_PINxMODE_OUTPUT );
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LL_GPIO_SetPinMode( LED_GPIO, LED2_PIN, LL_GPIO_PINxMODE_OUTPUT );
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LED1_On;
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LED2_On;
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DelayMs(200);
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LED1_Off;
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LED2_Off;
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}
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void Uart_Init( void )
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{
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/* Bus clock enable */
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LL_CMU_EnablePeriphBusClock_UART1();
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LL_CMU_SelectClock_UART1( LL_CMU_HFPER_CLK_APBCLKx ); // Clock source select
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LL_CMU_EnableClock_UART1(); // Operation clock enable
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LL_UART_SetBaudRate( UART1, 412 ); // Set baudrate to 115200bps, reg = (uclk / baudrate) - 1
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LL_UART_SetDataWidth( UART1, LL_UART_DATA_WIDTH_8bit ); // 8 bit
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LL_UART_SetStopBitsLength( UART1, LL_UART_STOPCFG_1bit ); // 1 stop bit
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LL_UART_SetParity( UART1, LL_UART_PARITY_NONE ); // Parity none
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LL_UART_EnableTx( UART1 ); // Tx enable
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LL_UART_EnableRx( UART1 ); // Rx enable
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}
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void uart_send_byte( UART_Typedef *uart, uint16_t c )
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{
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while ( !LL_UART_IsActiveFlag_TXBE( uart ) )
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;
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LL_UART_TransmitData( uart, (uint32_t) c );
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}
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/* Retarget fputc, then you can use printf. */
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int fputc( int ch, FILE *f )
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{
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uart_send_byte( UART1, ch );
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return (ch);
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}
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void SPI_Init( SPI_Typedef *spi )
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{
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// Bus clock enable
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if ( spi == SPI1 )
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LL_CMU_EnablePeriphBusClock_SPI1();
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else if ( spi == SPI2 )
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LL_CMU_EnablePeriphBusClock_SPI2();
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LL_SPI_DisableCtrlSSN( spi ); // Disable Software Control
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//LL_SPI_SetSSNOutput( spi, 1 ); // Set SSN High
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LL_SPI_Disable( spi ); // Disable SPI
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LL_SPI_SetWorkMode( spi, LL_SPI_WORKMODE_MASTER ); // Mode select - master
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LL_SPI_SetBaudrate( spi, LL_SPI_BAUDRATE_DIV_4 ); // Baudrate Select - fPCLK/16
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LL_SPI_SetFrameFormat(spi,LL_SPI_FRAME_FMT_MSB);
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LL_SPI_SetClockPolarity(spi,LL_SPI_CPOL_NEGATIVE);
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LL_SPI_SetCommMode(spi,LL_SPI_COMM_MODE_STANDARD);
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LL_SPI_SetDataLength(spi,LL_SPI_DATA_LENGTH_8bit);
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LL_SPI_DisableHalfDuplexDummyCycle(spi);
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LL_SPI_Enable( spi ); // Enable SPI
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}
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void BSP_Init( void )
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{
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GPIO_Init();
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Uart_Init();
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//SPI_Init( SPI1);
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SVD_Init();
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RNG_Init();
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}
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