feat: KT mBMS 펌웨어 3종(HW1/2/3) 및 통합 빌드 환경 초기 커밋 (V4.0.0.1)

mBMS_APP_V3117/HARDWARE/spi2.c

@@ -0,0 +1,101 @@
+#include "spi2.h"
+#include "delay.h"
+#include "includes.h"
+//////////////////////////////////////////////////////////////////////////////////	 
+//This program is for educational purposes only, without the author's permission, may not be used for any other purpose
+//ALIENTEK STM32F4 Explorer Board
+//SPI Driver code	   
+//Hot Atomic @ALIENTEK
+//Forum: www.openedv.com
+//Date modified: 2014/5/6
+//Version: V1.0
+//All rights reserved pirated reserved.
+//Copyright(C) Guangzhou wing electronic technology limited company 2009-2019
+//All rights reserved
+////////////////////////////////////////////////////////////////////////////////// 	 
+
+
+//Following is the SPI module initialization code, and configured to master mode
+//SPI port initialization
+//Needle is SPI1 initialization
+void SPI2_Init(void)
+{	 
+	GPIO_InitTypeDef  GPIO_InitStructure;
+	SPI_InitTypeDef  SPI_InitStructure;
+	
+	RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);	//Enables GPIOB clock
+	RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2 , ENABLE);	//Enable SPI2 clock
+ 
+	//GPIOB13, B14, B15 initialization settings
+	GPIO_InitStructure.GPIO_Pin 	= GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15;	//PB13~15 reuse function output
+	GPIO_InitStructure.GPIO_Mode 	= GPIO_Mode_AF;						//Multiplexing function
+	GPIO_InitStructure.GPIO_OType 	= GPIO_OType_PP;					//Push-pull output
+	GPIO_InitStructure.GPIO_Speed 	= GPIO_Speed_100MHz;				//100MHz
+	GPIO_InitStructure.GPIO_PuPd 	= GPIO_PuPd_UP;						//Pull-up
+	GPIO_Init(GPIOB, &GPIO_InitStructure);								//Initialize
+	
+	GPIO_PinAFConfig(GPIOB,GPIO_PinSource13,GPIO_AF_SPI2); //PB13 multiplexing SPI2
+	GPIO_PinAFConfig(GPIOB,GPIO_PinSource14,GPIO_AF_SPI2); //PB14 multiplexing SPI2
+	GPIO_PinAFConfig(GPIOB,GPIO_PinSource15,GPIO_AF_SPI2); //PB15 multiplexing SPI2
+
+ 
+	//Here only for the SPI port initialization
+	RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI2,ENABLE );    	//Reset SPI2
+	RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI2,DISABLE);    	//Stop reset SPI2
+
+	SPI_InitStructure.SPI_Direction 		= SPI_Direction_2Lines_FullDuplex;  //Set SPI unidirectional or bi-directional data modes: SPI is set to two-lane bi-directional full-duplex
+	SPI_InitStructure.SPI_Mode 				= SPI_Mode_Master;					//Set SPI mode: set master SPI
+	SPI_InitStructure.SPI_DataSize 			= SPI_DataSize_16b;					//Set SPI data size: send receive 16-bit SPI frame structure
+	SPI_InitStructure.SPI_CPOL 				= SPI_CPOL_Low;						//Serial synchronous clock idle high
+	SPI_InitStructure.SPI_CPHA 				= SPI_CPHA_2Edge;					//Serial synchronous clocks second jump (increase or decrease) the data is sampled
+	SPI_InitStructure.SPI_NSS 				= SPI_NSS_Soft;						//NSS is set by hardware (NSS pins) or software (using SSI) management: internal NSS SSI signal level control
+	SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_256;		//Define baud rate predissociation spectrum of values: baud rate predissociation spectrum value of 256
+	SPI_InitStructure.SPI_FirstBit 			= SPI_FirstBit_MSB;					//Specifies the data transmission starting from MSB or LSB bit: data transmission starting from the MSB
+	SPI_InitStructure.SPI_CRCPolynomial 	= 7;								//CRC calculate polynomials
+	SPI_Init(SPI2, &SPI_InitStructure);  										//According to the parameters specified in SPI_InitStruct to initialize peripherals SPIx register
+ 
+	SPI_Cmd(SPI2, ENABLE); 		//Make SPI peripherals
+
+	SPI2_ReadWriteByte(0xff, 0, 100);	//To start the transfer		 
+}   
+//SPI1 speed setting function
+//SpeedSet:0~7
+//SPI speed =fAPB2/2^ (SpeedSet+1)
+//FAPB2 84Mhz
+void SPI2_SetSpeed(u8 SPI_BaudRatePrescaler)
+{
+  	assert_param(IS_SPI_BAUDRATE_PRESCALER(SPI_BaudRatePrescaler));
+	SPI2->CR1 &= 0XFFC7;
+	SPI2->CR1 |= SPI_BaudRatePrescaler;	//Set SPI2 speed 
+	SPI_Cmd(SPI2,ENABLE);  
+} 
+//SPI1 read and write bytes
+//TxData: the bytes to write
+//RxData: the words to read pointer
+//t_us: timeout(us)
+//Return value: result (0: OK, 1: Tx fail, 2: Rx fail)
+u8 SPI2_ReadWriteByte(u16 TxData, u16* RxData, u32 t_us)
+{
+	u32 timeout = t_us;
+	u16 rd;
+	
+	while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET) //Waiting to be sent  
+	{
+		if (timeout-- == 0) return 1;
+		delay_us(2);
+	}
+	SPI_I2S_SendData(SPI2, TxData); 	//Send a byte data through peripheral SPIx
+		
+	timeout = t_us;
+	while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_RXNE) == RESET) //Wait to receive a one byte
+	{
+		if (timeout-- == 0) return 2;
+		delay_us(2);
+	}
+	rd = SPI_I2S_ReceiveData(SPI2); 	//Returned by SPIx recently received data
+	
+	if (RxData != NULL) 
+		*RxData = rd;
+	
+	return 0;
+}