/*******************************************************
说明：
次程序成功实现SPI简单通信配置，能实现SPI1发送
数据，SPI2接收数据简单通信功能，仅供测试使用。
*******************************************************/
#include "stm32f10x_lib.h"
#include "stm32f10x_conf.h"
#include "ili9320.h"
/****************************/
#define LCD_X_ADDR 190
#define LCD_Y_ADDR 100
vu16 SPI_IDx = 0; //Reveive Data
u16 SPI_ID_Temp = 0; //接收数据备份，用于判断接收到的数据是否发生变化
u16 SPI_ID[4]; //位显示数据
/********** 函数声明 *********/
void RCC_Configuration(void);
void NVIC_Configuration(void);
void GPIO_Configuration(void);
void SPI_Configuration(void);
void Sys_Init(void);
void LCD_Print_Out(void);
/********** 系统初始化 ******************/
void Sys_Init(void)
{
#ifdef DEBUG
debug();
#endif
//----- 模块初始化配置 -------
RCC_Configuration();
NVIC_Configuration();
GPIO_Configuration();
SPI_Configuration();
//--------- LCD -----------
Lcd_Configuration();
ili9320_Initializtion();
ili9320_Clear(0);
ili9320_PutChar(LCD_X_ADDR, LCD_Y_ADDR, 0x30 + 0, 65535, 0);
}
/******* 主函数 **********/
int main(void)
{
Sys_Init();
while(1)
{
LCD_Print_Out();
}
}
/******** 用于调试LCD显示数据界面 *********/
void LCD_Print_Out(void)
{
//如果数据发生变化，则执行数据更新
if(SPI_ID_Temp != SPI_IDx)
{
if(SPI_IDx >= 1000)
{
SPI_ID[0] = SPI_IDx % 10;
SPI_ID[1] = (SPI_IDx % 100) / 10;
SPI_ID[2] = (SPI_IDx / 100) % 10;
SPI_ID[3] = SPI_IDx / 1000;
ili9320_PutChar(LCD_X_ADDR, LCD_Y_ADDR, 0x30 + SPI_ID[0], 65535, 0);
ili9320_PutChar(LCD_X_ADDR - 8, LCD_Y_ADDR, 0x30 + SPI_ID[1], 65535, 0);
ili9320_PutChar(LCD_X_ADDR - 16, LCD_Y_ADDR, 0x30 + SPI_ID[2], 65535, 0);
ili9320_PutChar(LCD_X_ADDR - 24, LCD_Y_ADDR, 0x30 + SPI_ID[3], 65535, 0);
}
else if(SPI_IDx >= 100)
{
SPI_ID[0] = SPI_IDx % 10;
SPI_ID[1] = (SPI_IDx / 10) % 10;
SPI_ID[2] = SPI_IDx / 100;
ili9320_PutChar(LCD_X_ADDR, LCD_Y_ADDR, 0x30 + SPI_ID[0], 65535, 0);
ili9320_PutChar(LCD_X_ADDR - 8, LCD_Y_ADDR, 0x30 + SPI_ID[1], 65535, 0);
ili9320_PutChar(LCD_X_ADDR - 16, LCD_Y_ADDR, 0x30 + SPI_ID[2], 65535, 0);
ili9320_PutChar(LCD_X_ADDR - 24, LCD_Y_ADDR, 0x30 + SPI_ID[3], 0, 0);
}
else if(SPI_IDx >= 10)
{
SPI_ID[0] = SPI_IDx % 10;
SPI_ID[1] = SPI_IDx / 10;
ili9320_PutChar(LCD_X_ADDR, LCD_Y_ADDR, 0x30 + SPI_ID[0], 65535, 0);
ili9320_PutChar(LCD_X_ADDR - 8, LCD_Y_ADDR, 0x30 + SPI_ID[1], 65535, 0);
ili9320_PutChar(LCD_X_ADDR - 16, LCD_Y_ADDR, 0x30 + SPI_ID[2], 0, 0);
ili9320_PutChar(LCD_X_ADDR - 24, LCD_Y_ADDR, 0x30 + SPI_ID[3], 0, 0);
}
else
{
SPI_ID[0] = SPI_IDx % 10;
ili9320_PutChar(LCD_X_ADDR, LCD_Y_ADDR, 0x30 + SPI_ID[0], 65535, 0);
ili9320_PutChar(LCD_X_ADDR - 8, LCD_Y_ADDR, 0x30 + SPI_ID[1], 0, 0);
ili9320_PutChar(LCD_X_ADDR - 16, LCD_Y_ADDR, 0x30 + SPI_ID[2], 0, 0);
ili9320_PutChar(LCD_X_ADDR - 24, LCD_Y_ADDR, 0x30 + SPI_ID[3], 0, 0);
}
SPI_ID_Temp = SPI_IDx; //数据备份，为判断数据是否发生变化
}
}
/**************************************************************************/
/**************************************************************************/
/****** 系统时钟配置函数 ********/
void RCC_Configuration(void)
{
ErrorStatus HSEStartUpStatus;
RCC_DeInit(); //RCC system reset(for debug purpose)
RCC_HSEConfig(RCC_HSE_ON); //Enable HSE
HSEStartUpStatus = RCC_WaitForHSEStartUp(); //Wait till HSE is ready
if(HSEStartUpStatus == SUCCESS)
{
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //Enable Prefetch Buffer
FLASH_SetLatency(FLASH_Latency_2); //Set 2 Latency cycles
RCC_HCLKConfig(RCC_SYSCLK_Div1); //AHB clock = SYSCLK
RCC_PCLK2Config(RCC_HCLK_Div2); //APB2 clock = HCLK/2
RCC_PCLK1Config(RCC_HCLK_Div4); //APB1 clock = HCLK/4
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); //PLLCLK = 8MHz * 9 = 72 MHz
RCC_PLLCmd(ENABLE); //Enable PLL
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET); //Wait till PLL is ready
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //Select PLL as system clock source
while(RCC_GetSYSCLKSource() != 0x08); //Wait till PLL is used as system clock source
//-----------------------------------------------------
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB
| RCC_APB2Periph_SPI1, ENABLE); //GPIOD clock ENABLE
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE); //TIM2 clock ENABLE
}
}
/****** 中断配置函数 ********/
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
//--- 在内存中进行调试 -----
#ifdef VECT_TAB_RAM
NIVC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
//--- 在FLASH中进行调试 ----
#else
NVIC_SetVectorTable(NVIC_VectTab_FLASH,0x0);
#endif
//---- 配置TIM2中断，并使能 -----
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel = SPI1_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
//------------------------------------
NVIC_InitStructure.NVIC_IRQChannel = SPI2_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_Init(&NVIC_InitStructure);
}
/********** 通用I/O配置函数 ***************/
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//------------------
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
/*****************************************************
函数名称：SPI_Configuration(void)
功能说明：SPI通信模块配置，配置SPI工作模式；
输入参数：无
返回值 ：无
*****************************************************/
void SPI_Configuration(void)
{
SPI_InitTypeDef SPI_InitStructure;
//--------------------- SPI1 configuration ------------------
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_16b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI1, &SPI_InitStructure);
//--------- SPI2 configuration ------------------
SPI_InitStructure.SPI_Mode = SPI_Mode_Slave;
SPI_Init(SPI2, &SPI_InitStructure);
//--------- Enable SPI1 TXE interrupt ------------
SPI_I2S_ITConfig(SPI1, SPI_I2S_IT_TXE, ENABLE);
//--------- Enable SPI2 RXNE interrupt -------------
SPI_I2S_ITConfig(SPI2, SPI_I2S_IT_RXNE, ENABLE);
//----- Enable SPI2 ------
SPI_Cmd(SPI2, ENABLE);
//----- Enable SPI1 ----
SPI_Cmd(SPI1, ENABLE);
}
/*************************************************/
#ifdef DEBUG
void assert_failed(u8 *file, u32 line)
{
while(1)
{}
}
#endif
/***********************************************************/
/***********************************************************/
#include "stm32f10x_it.h"
/****************************/
extern vu16 SPI_IDx;
/*********** TX发送中断服务子程序 *********************/
void SPI1_IRQHandler(void)
{
//-------- 发送数据 ----------
SPI_I2S_SendData(SPI1, 47);
}
/*********** RX接收中断服务子程序 ****************/
void SPI2_IRQHandler(void)
{
//------------- 接收数据 ------------
SPI_IDx = SPI_I2S_ReceiveData(SPI2);
} |
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