#include "sys.h"
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#include "BT.h"
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#include "delay.h"
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#include "string.h"
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#include "mbrtu.h"
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#include "para.h"
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#include "sizhu_communication_protocol.h"
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u8 BT_RX_BUFF[BT_RX_LENGTH];
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//u8 BT_TX_BUFF[500];
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u8 Data_send_flag=0;
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void BT_data_clear( void )
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{
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/*Çå³ý´®¿ÚÖеÄDMAÊý¾Ý*/
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DMA_Cmd(BT_DMARX_CH,DISABLE);
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DMA_SetCurrDataCounter(BT_DMARX_CH, BT_RX_LENGTH);
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DMA_Cmd(BT_DMARX_CH,ENABLE);
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}
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/*******************************************************************************
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* Function Name: RS485_GPIO_Init
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* Parameters: none
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* Return: none
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* Description:
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******************************************************************************/
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void BT_RS485_GPIO_Init(void)
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{
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// GPIO_InitTypeDef GPIO_InitStructure;
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}
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void BT_Usart_Init(uint32 system_BaudRate)
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{
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USART_InitTypeDef USART_InitStructure;
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DMA_InitTypeDef DMA_InitStructure;
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3 , ENABLE);
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RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
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USART_DeInit(BT_USARTNUM);
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USART_InitStructure.USART_BaudRate = system_BaudRate;
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USART_InitStructure.USART_WordLength = USART_WordLength_8b;//word length 8bit
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USART_InitStructure.USART_StopBits = USART_StopBits_1;//one stopbit
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USART_InitStructure.USART_Parity = USART_Parity_No;
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USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
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USART_InitStructure.USART_Mode =USART_Mode_Rx | USART_Mode_Tx;
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USART_Init(BT_USARTNUM, &USART_InitStructure); //initialize USART
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///////////////////////
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/*DMA ½ÓÊÕ³õʼ»¯*/
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/*¿ªÆôDMAʱÖÓ*/
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DMA_DeInit(BT_DMARX_CH);
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/*ÉèÖÃDMAÔ´£º´®¿ÚÊý¾Ý¼Ä´æÆ÷µØÖ·*/
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DMA_InitStructure.DMA_PeripheralBaseAddr =(u32)(&(BT_USARTNUM->DR)) ;
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/*ÄÚ´æµØÖ·(Òª´«ÊäµÄ±äÁ¿µÄÖ¸Õë)*/
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DMA_InitStructure.DMA_MemoryBaseAddr = (u32)(rs485_receive_g.RS485_BUF);
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/*·½Ïò£º´ÓË«Ïòµ½ÄÚ´æ*/
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DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
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/*´«Êä´óСDMA_BufferSize=SENDBUFF_SIZE*/
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DMA_InitStructure.DMA_BufferSize = REC_LENGTH;
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/*ÍâÉèµØÖ·²»Ôö*/
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DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
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/*ÄÚ´æµØÖ·×ÔÔö*/
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DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
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/*ÍâÉèÊý¾Ýµ¥Î»*/
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DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
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/*ÄÚ´æÊý¾Ýµ¥Î» 8bit*/
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DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
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/*DMAģʽ£º²»¶ÏÑ»·*/
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//DMA_InitStructure.DMA_Mode = DMA_Mode_Normal ;
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DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
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/*ÓÅÏȼ¶£ºÖÐ*/
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DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
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/*½ûÖ¹ÄÚ´æµ½ÄÚ´æµÄ´«Êä */
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DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
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DMA_Init(BT_DMARX_CH, &DMA_InitStructure);
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USART_DMACmd(BT_USARTNUM, USART_DMAReq_Rx, ENABLE);
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DMA_Cmd(BT_DMARX_CH, ENABLE);
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USART_Cmd(BT_USARTNUM, ENABLE);
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USART_ClearITPendingBit(BT_USARTNUM, USART_IT_TC);//Çå³ýTC±êÖ¾
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}
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void BT_DATA_Init(void)
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{
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DMA_Cmd(BT_DMARX_CH,DISABLE);
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DMA_SetCurrDataCounter(BT_DMARX_CH, BT_RX_LENGTH);
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DMA_Cmd(BT_DMARX_CH,ENABLE);
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memset(BT_RX_BUFF,0,sizeof(BT_RX_BUFF));
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memset(ucRTUBuf,0,sizeof(ucRTUBuf));
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}
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void bt_send(u8 * data, u16 length)
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{
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u16 i;
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u8 *ptr;
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ptr = data;
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for(i = 0; i < length; i ++)
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{
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USART_SendData(USART3, *ptr);
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ptr ++;
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while(USART_GetFlagStatus(USART3, USART_FLAG_TC) == RESET);
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}
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}
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void bt_rs485_send(u8 * data, u16 length)
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{
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u16 i;
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u8 *ptr;
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ptr = data;
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if(v20_system_para_g.system_ble_connect == 1)
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{
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}else
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{
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PC_RS485_EN = 1;
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delay_ms(1);
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}
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// Data_send_flag = 1;
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// DMA_Cmd(DMA_RS485_TX_Channel,DISABLE);
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// DMA_SetCurrDataCounter(DMA_RS485_TX_Channel,length);
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// DMA_Cmd(DMA_RS485_TX_Channel,ENABLE);
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USART_ClearFlag(USART3, USART_FLAG_TC);//¿ÉÒÔ½â¾öÓ²¼þ¸´Î»Ö®ºóµÚÒ»´Î·¢ËͶªµÚÒ»¸ö×Ö½ÚÎÊÌâ
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for(i = 0; i < length; i ++)
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{
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USART_SendData(USART3, *ptr);
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ptr ++;
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while(USART_GetFlagStatus(USART3, USART_FLAG_TC) == RESET);
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}
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PC_RS485_EN = 0;
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}
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