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GeBalanceBot/Hardware/Firmware/GeBalanceBot_Firmware v1.0/HARDWARE/MOTO/bluetooth.c

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更新固件
2024-01-18 01:55:04 +08:00
/******************** (C) COPYRIGHT 2023 GeekRebot *****************************
* File Name : bluetooth.c
* Current Version : V1.0 & ST 3.5.0
* Author : zhanli 719901725@qq.com
* Date of Issued : 2023.04.06 zhanli: Create
* Comments : GeekRebot <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>,ʹ<EFBFBD><EFBFBD>HC05<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>飬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>͸<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܣ<EFBFBD>
<EFBFBD><EFBFBD>ʹ<EFBFBD>ô<EFBFBD><EFBFBD>ڲ<EFBFBD>࣬ʹ<EFBFBD><EFBFBD>stm32 <EFBFBD><EFBFBD>uart2<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD>ӿڣ<EFBFBD>TXD<EFBFBD><EFBFBD>RXD<EFBFBD><EFBFBD>5V<EFBFBD><EFBFBD>GND
1. PA2 -> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>RXD 2.PA3 -> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>TXD
********************************************************************************/
#include "stdarg.h"
#include "stdio.h"
#include "bluetooth.h"
#include <stdio.h>
volatile unsigned char *rx2_address;
volatile unsigned int rx2_count;
volatile unsigned int rx2_length;
/**----------------------------------------------------------------------
* Function : Bluetooth_Init
* Description : <EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,PA2->RXD, PA3->TXD, boundΪ<EFBFBD><EFBFBD><EFBFBD>ò<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* Author : zhanli&719901725@qq.com
* Date : 2023/05/20 zhanli
*---------------------------------------------------------------------**/
void Bluetooth_Init(u32 bound)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* Config USART2 clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
/* USART2 GPIO config */
/* Configure USART2 Tx (PA.02) as alternate function push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* Configure USART2 Rx (PA.03) as input floating */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* USART2 mode config */
USART_InitStructure.USART_BaudRate = bound;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No ;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART2, &USART_InitStructure);
/* Configure the NVIC Preemption Priority Bits */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
/* Enable the USARTy Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* ʹ<>ܴ<EFBFBD><DCB4><EFBFBD>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD> */
USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);
USART_Cmd(USART2, ENABLE);
}
/**----------------------------------------------------------------------
* Function : USART2_Send
* Description : <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD>USART2<EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD>ֻ<EFBFBD>
* Author : zhanli&719901725@qq.com
* Date : 2023/05/20 zhanli
*---------------------------------------------------------------------**/
void USART2_Send(unsigned char *tx_buf, int len)
{
USART_ClearFlag(USART2, USART_FLAG_TC);
USART_ClearITPendingBit(USART2, USART_FLAG_TXE);
while(len--)
{
USART_SendData(USART2, *tx_buf);
while(USART_GetFlagStatus(USART2, USART_FLAG_TC) != 1);
USART_ClearFlag(USART2, USART_FLAG_TC);
USART_ClearITPendingBit(USART2, USART_FLAG_TXE);
tx_buf++;
}
}
/**----------------------------------------------------------------------
* Function : USART2_Send
* Description : <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD>USART2<EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD>ֻ<EFBFBD>
* Author : zhanli&719901725@qq.com
* Date : 2023/05/20 zhanli
*---------------------------------------------------------------------**/
void USART2_SendStr(unsigned char *tx_buf)
{
USART_ClearFlag(USART2, USART_FLAG_TC);
USART_ClearITPendingBit(USART2, USART_FLAG_TXE);
while(*tx_buf != 0)
{
USART_SendData(USART2, *tx_buf++);
while(USART_GetFlagStatus(USART2, USART_FLAG_TC) != 1);
USART_ClearFlag(USART2, USART_FLAG_TC);
USART_ClearITPendingBit(USART2, USART_FLAG_TXE);
}
}
static char *itoa(int value, char *string, int radix)
{
int i, d;
int flag = 0;
char *ptr = string;
/* This implementation only works for decimal numbers. */
if (radix != 10)
{
*ptr = 0;
return string;
}
if (!value)
{
*ptr++ = 0x30;
*ptr = 0;
return string;
}
/* if this is a negative value insert the minus sign. */
if (value < 0)
{
*ptr++ = '-';
/* Make the value positive. */
value *= -1;
}
for (i = 10000; i > 0; i /= 10)
{
d = value / i;
if (d || flag)
{
*ptr++ = (char)(d + 0x30);
value -= (d * i);
flag = 1;
}
}
/* Null terminate the string. */
*ptr = 0;
return string;
} /* NCL_Itoa */
void PB_USART_printf(USART_TypeDef* USARTx, uint8_t *Data,...)
{
const char *s;
int d;
char buf[18];
va_list ap;
va_start(ap, Data);
USART_ClearFlag(USART2, USART_FLAG_TC);
USART_ClearITPendingBit(USART2, USART_FLAG_TXE);
while ( *Data != 0)
{
if ( *Data == 0x5c ) //'\'
{
switch ( *++Data )
{
case 'r':
USART_SendData(USARTx, 0x0d);
Data ++;
break;
case 'n':
USART_SendData(USARTx, 0x0a);
Data ++;
break;
default:
Data ++;
break;
}
}
else if ( *Data == '%')
{
switch ( *++Data )
{
case 's':
s = va_arg(ap, const char *);
for ( ; *s; s++)
{
USART_SendData(USARTx,*s);
while( USART_GetFlagStatus(USARTx, USART_FLAG_TC) == RESET );
}
Data++;
break;
case 'd':
d = va_arg(ap, int);
itoa(d, buf, 10);
for (s = buf; *s; s++)
{
USART_SendData(USARTx,*s);
while( USART_GetFlagStatus(USARTx, USART_FLAG_TC) == RESET );
}
Data++;
break;
default:
Data++;
break;
}
} /* end of else if */
else
{
USART_SendData(USARTx, *Data++);
}
while(USART_GetFlagStatus(USARTx, USART_FLAG_TC) == RESET );
USART_ClearFlag(USART2, USART_FLAG_TC);
USART_ClearITPendingBit(USART2, USART_FLAG_TXE);
}
}
/**----------------------------------------------------------------------
* Function : USART2_Receive
* Description : <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* Author : zhanli&719901725@qq.com
* Date : 2023/05/20 zhanli
*---------------------------------------------------------------------**/
void USART2_Receive(unsigned char *rx_buf, int len)
{
rx2_count = 0;
rx2_length = len;
rx2_address = rx_buf;
}
/**----------------------------------------------------------------------
* Function : USART2_Receive
* Description : <EFBFBD><EFBFBD><EFBFBD><EFBFBD>2<EFBFBD>жϺ<EFBFBD><EFBFBD><EFBFBD>
* Author : zhanli&719901725@qq.com
* Date : 2023/05/20 zhanli
*---------------------------------------------------------------------**/
void USART2_IRQHandler(void)
{
unsigned char Res;
// <20><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>(<28><><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD>0x0d 0x0a<30><61>β)
if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET)
{
Res = USART_ReceiveData(USART2);
if(rx2_length > rx2_count)
{
*rx2_address = Res;
rx2_address++;
rx2_count++;
}
USART_ClearITPendingBit(USART2, USART_IT_RXNE);
}
}