#include?“stm32f10x.h“
#include?“bsp_usart.h“
#include?“bsp_key.h“
#include?“bsp_joystick.h“
#include?“modbusmaster.h“
#include?“crc16.h“

/*******************************************全局變量僅限本文件使用****************************************/
unsigned?char?Master_RxBuf[MASTER_RX_BUF_SIZE]={0};//主機接收緩沖區
unsigned?short?Master_RxCnt?=?0;???????????????????//接收數據計數器
unsigned?char?Master_RxFlag?=?0;
unsigned?char?g_ReplyTime?=?0;
unsigned?char?g_MasterSendData?=?0;
unsigned?char?g_MasterWriteRequest?=?0;
static?unsigned?short?ReadReg[8];
static?unsigned?short?WriteReg[6];

void?Master_Timing（unsigned?int?time_tick）
{
	if（g_ReplyTime?>?0）g_ReplyTime?++;
	if（（time_tick?%?25）?==?0）g_MasterSendData?=?1;
}


//定時器7初始化
void?Timer7_Init（unsigned?int?ulBaudRate）
{
	TIM_TimebaseInitTypeDef??TIM_TimebaseStructure;
	NVIC_InitTypeDef?NVIC_InitStructure;
	
	unsigned?short?PrescalerValue?=?（uint16_t）?（SystemCoreClock?/?20000L）?-?1;
	unsigned?short?usTimerT35_50us=0;													//數據幀最小間隔（ms）超過此時間則認為是下一幀
	
	RCC_APB1PeriphClockCmd（RCC_APB1Periph_TIM7?ENABLE）;?//TIM7時鐘使能?
	
	
	if（?ulBaudRate?>?19200?）
	{
			usTimerT35_50us?=?35;???????/*?1800us.?*/
	}
	else
	{
			/*?The?timer?reload?value?for?a?character?is?given?by:
			?*
			?*?ChTimeValue?=?Ticks_per_1s?/?（?Baudrate?/?11?）
			?*?????????????=?11?*?Ticks_per_1s?/?Baudrate
			?*?????????????=?220000?/?Baudrate
			?*?The?reload?for?t3.5?is?1.5?times?this?value?and?similary
			?*?for?t3.5.
			?*/
			usTimerT35_50us?=?（?7UL?*?220000UL?）?/?（?2UL?*?ulBaudRate?）;
	}
	//TIM7初始化設置RS485_frame_Distance*10
	TIM_TimebaseStructure.TIM_Period?=?usTimerT35_50us;?//設置在下一個更新事件裝入活動的自動重裝載寄存器周期的值
	TIM_TimebaseStructure.TIM_Prescaler?=PrescalerValue;?//設置用來作為TIMx時鐘頻率除數的預分頻值?設置計數頻率為10kHz
	TIM_TimebaseStructure.TIM_ClockDivision?=?TIM_CKD_DIV1;?//設置時鐘分割:TDTS?=?Tck_tim
	TIM_TimebaseStructure.TIM_CounterMode?=?TIM_CounterMode_Up;??//TIM向上計數模式
	TIM_TimebaseInit（TIM7?&TIM_TimebaseStructure）;?//根據TIM_TimebaseInitStruct中指定的參數初始化TIMx的時間基數單位
		
	TIM_ClearFlag（TIM7?TIM_FLAG_Update）;
	TIM_ClearITPendingBit（TIM7?TIM_IT_Update）;
	TIM_SetCounter（TIM70x0000）;
	TIM_ITConfig（?TIM7TIM_IT_UpdateDISABLE）;//TIM7?不允許更新中斷	
	TIM_Cmd（TIM7?ENABLE）;?

	//TIM7中斷分組配置
	NVIC_PriorityGroupConfig（NVIC_PriorityGroup_4）;?????????????//配置NVIC中斷優先級編組
	NVIC_InitStructure.NVIC_IRQChannel?=TIM7_IRQn;??????????????//TIM7中斷
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority?=?0;???//先占優先級0級
	NVIC_InitStructure.NVIC_IRQChannelSubPriority?=?1;??????????//從優先級0級
	NVIC_InitStructure.NVIC_IRQChannelCmd?=?ENABLE;?????????????//IRQ通道被使能
	NVIC_Init（&NVIC_InitStructure）;?????????????????????????????//根據NVIC_InitStruct中指定的參數初始化外設NVIC寄存器?
}

void?Master_Init（unsigned?long?ulBaudRate）
{
	GPIO_InitTypeDef?GPIO_InitStructure;
	
	RCC_APB2PeriphClockCmd（	RCC_APB2Periph_GPIOC|
							RCC_APB2Periph_GPIOE|
							RCC_APB2Periph_AFIOENABLE）;
	RCC_LSEConfig（RCC_LSE_OFF）;	//關閉外部低速外部時鐘信號功能后，PC13
	
	GPIO_InitStructu

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????3782??2017-03-01?23:07??Modbus\crc16.h

?????文件??????10767??2018-05-23?14:48??Modbus\ModbusMaster.c

?????文件???????1150??2018-05-08?16:55??Modbus\ModbusMaster.h

?????目錄??????????0??2018-05-23?14:48??Modbus

-----------?---------??----------?-----??----

????????????????15699????????????????????4