更新

2023-10-17 21:44:23 +08:00
parent 30b569f3d6
commit b85fc4bdf1
14 changed files with 1401 additions and 281 deletions
--- a/通讯协议/软件IIC/AbsSoftIIC.c
+++ b/通讯协议/软件IIC/AbsSoftIIC.c
@@ -0,0 +1,244 @@
+/*
+@文件：AbsSoftIIC.c
+@作者：你遇了我
+@联系：321640253@qq.com
+@描述：软件IIC
+@版本：v0.1.2
+*/
+#include "AbsSoftIIC.h"
+
+#if(ABS_SOFT_IIC_ON)
+
+/**************************抽象实现区(BEGIN)********************************/
+/*
+实现SDA引脚改变为输入模式
+*/
+void ABS_IIC_SDA_MODE_INPUT(void){
+	GPIO_InitTypeDef GPIO_InitStruct = {0};
+	GPIO_InitStruct.Pin = GPIO_PIN_8;
+	GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+	GPIO_InitStruct.Pull = GPIO_NOPULL;
+	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+	HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+}
+
+/*
+实现SDA引脚改变为输出模式
+*/
+void ABS_IIC_SDA_MODE_OUTPUT(void){
+	GPIO_InitTypeDef GPIO_InitStruct = {0};
+	
+	GPIO_InitStruct.Pin = GPIO_PIN_8;
+	GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+	GPIO_InitStruct.Pull = GPIO_NOPULL;
+	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+	HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+}
+
+
+/**************************抽象实现区(END)**********************************/
+
+
+
+
+
+/*简易延时*/
+static void ABS_IIC_delay(uint16_t T){
+	while(T--);
+}
+
+/*起始信号*/
+void ABS_I2C_Start(void)
+{
+	ABS_IIC_SDA_Set();
+	ABS_IIC_SCL_Set();
+	ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+	ABS_IIC_SDA_Reset();
+	ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+	ABS_IIC_SCL_Reset();
+	ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+}
+
+/*结束信号*/
+void ABS_I2C_Stop(void)
+{
+	ABS_IIC_SCL_Reset();
+	ABS_IIC_SDA_Reset();
+	ABS_IIC_SCL_Set();
+	ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+	ABS_IIC_SDA_Set();
+}
+
+/*等待应答信号*/
+ABS_SOFT_IIC_STATE ABS_I2C_WaitAck(void) 
+{
+	ABS_IIC_SDA_Set();
+	uint16_t timeout = 0;
+	ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+ 	ABS_IIC_SDA_MODE_INPUT();
+	ABS_IIC_SCL_Set();
+	while(ABS_IIC_SDA_READ()){
+		ABS_IIC_delay(1);
+		timeout++;
+		if(timeout>ABS_IIC_Wait_OUTTime){
+			ABS_IIC_SCL_Reset();
+			ABS_IIC_SDA_MODE_OUTPUT();
+			return ABS_SOFT_IIC_TIMEOUT;
+		}
+	}
+	ABS_IIC_SCL_Reset();
+	ABS_IIC_SDA_MODE_OUTPUT();
+	ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+	return ABS_SOFT_IIC_SUCCESS;
+}
+
+void ABS_I2C_Ack(void)
+{
+	ABS_IIC_SDA_MODE_OUTPUT();
+	ABS_IIC_SCL_Reset();
+	ABS_IIC_SDA_Reset();
+	ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+	ABS_IIC_SCL_Set();
+	ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+	ABS_IIC_SCL_Reset();
+	ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+}
+void ABS_I2C_NAck(void)
+{
+	ABS_IIC_SDA_MODE_OUTPUT();
+	ABS_IIC_SCL_Reset();
+	ABS_IIC_SDA_Set();
+	ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+	ABS_IIC_SCL_Set();
+	ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+	ABS_IIC_SCL_Reset();
+	ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+}
+
+/*发送一个字节*/
+static void ABS_IIC_Send_Byte(uint8_t dat)
+{
+	uint8_t i;
+	for(i=0;i<8;i++)
+	{
+		if(dat&0x80)
+		{
+			ABS_IIC_SDA_Set();
+    }
+		else
+		{
+			ABS_IIC_SDA_Reset();
+    }
+		ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+		ABS_IIC_SCL_Set();
+		ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+		ABS_IIC_SCL_Reset();
+		dat<<=1;
+  }
+  ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+}
+
+void ABS_I2C_Read_Byte(uint8_t address,uint8_t *dat)
+{
+	uint8_t i;
+	ABS_IIC_SCL_Reset();
+	ABS_IIC_SDA_Reset();
+	ABS_IIC_SDA_MODE_INPUT();
+	ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+	for(i=0;i<8;i++)
+	{
+		ABS_IIC_SCL_Set();
+		ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+		if(ABS_IIC_SDA_READ())
+		{
+			*dat|=(0x1<<(7-i));
+		}
+		else
+		{
+			*dat&=~(0x1<<(7-i));
+		}
+		ABS_IIC_SCL_Reset();
+		ABS_IIC_delay(ABS_IIC_DELAY_TIME);
+	}
+}
+
+ABS_SOFT_IIC_STATE ABS_I2C_WR_Byte(uint8_t address,uint8_t dat){
+	ABS_IIC_SCL_Set();
+	ABS_IIC_SDA_Set();
+	ABS_I2C_Start();
+	ABS_IIC_Send_Byte(address);
+	if(ABS_I2C_WaitAck()==ABS_SOFT_IIC_SUCCESS);
+	else {
+		ABS_I2C_Stop();
+		return ABS_SOFT_IIC_ERROR;
+	}
+
+	ABS_IIC_Send_Byte(dat);
+	ABS_I2C_WaitAck();
+	ABS_I2C_Stop();
+	return ABS_SOFT_IIC_SUCCESS;
+}
+/*
+*@函数:ABS_I2C_WR_Bytes
+*@功能:向指定的器件地址写入num个字节数据
+*@参数:	address:器件地址
+		*dat:需要写入数据的指针
+		num:数据的长度(不包括器件地址)
+*/
+ABS_SOFT_IIC_STATE ABS_I2C_WR_Bytes(uint8_t address,uint8_t *dat,uint8_t num){
+	ABS_IIC_SCL_Set();
+	ABS_IIC_SDA_Set();
+	ABS_I2C_Start();
+	ABS_IIC_Send_Byte(address);
+	if(ABS_I2C_WaitAck()==ABS_SOFT_IIC_SUCCESS);
+	else {
+		ABS_I2C_Stop();
+		return ABS_SOFT_IIC_ERROR;
+	}
+	while(num--)
+	{
+		ABS_IIC_Send_Byte(*dat);
+		ABS_I2C_WaitAck();
+		dat++;
+	}
+	ABS_I2C_Stop();
+	return ABS_SOFT_IIC_SUCCESS;
+}
+
+ABS_SOFT_IIC_STATE ABS_I2C_RD_Byte(uint8_t address,uint8_t *dat){	
+	ABS_IIC_SCL_Set();
+	ABS_IIC_SDA_Set();
+	ABS_I2C_Start();
+	ABS_IIC_Send_Byte(address);
+	if(ABS_I2C_WaitAck()==ABS_SOFT_IIC_SUCCESS);
+	else {
+		ABS_I2C_Stop();
+		return ABS_SOFT_IIC_ERROR;
+	}
+	ABS_I2C_Read_Byte(address,dat);
+	ABS_I2C_Stop();
+	return ABS_SOFT_IIC_SUCCESS;
+}
+
+ABS_SOFT_IIC_STATE ABS_I2C_RD_Bytes(uint8_t address,uint8_t *dat,uint8_t num){	
+	ABS_IIC_SCL_Set();
+	ABS_IIC_SDA_Set();
+	ABS_I2C_Start();
+	ABS_IIC_Send_Byte(address);
+	if(ABS_I2C_WaitAck()==ABS_SOFT_IIC_SUCCESS);
+	else {
+		ABS_I2C_Stop();
+		return ABS_SOFT_IIC_ERROR;
+	}
+	while(num--)
+	{
+		ABS_I2C_Read_Byte(address,dat);	
+		if(num==0)ABS_I2C_NAck();
+		else ABS_I2C_Ack();
+		dat++;
+	}
+	ABS_I2C_Stop();
+	return ABS_SOFT_IIC_SUCCESS;
+}
+
+#endif