python生成xlsx

2024-12-02 17:33:05 +08:00
parent ee6467abbf
commit 76d20a87c7
32 changed files with 3124 additions and 2100 deletions
@@ -0,0 +1,135 @@
+
+#include "drv_at24cxx.h"
+#include "stdio.h"
+#include "string.h"
+
+
+static I2C_t *prv_i2c = NULL;//私有i2c指针
+
+I2C_t* AT24C_Init(I2C_HandleTypeDef *hi2c)
+{
+	I2C_t* i2c;
+	i2c = (I2C_t *)malloc(sizeof(I2C_t));
+	
+	i2c->hi2c = hi2c;
+	i2c->address = DEV_ADDR;
+	i2c->page_num = PAGE_NUM;
+	i2c->page_size = PAGE_SIZE;
+	i2c->capacity = CAPACITY_SIZE;
+	i2c->addr_num = ADDR_BYTE_NUM;
+	
+		i2c->delay = 2;
+	
+	
+	/**
+	* 给全局变量赋值
+	*/
+	prv_i2c = i2c;
+	
+	return i2c;
+}
+
+
+
+
+unsigned char AT24C_Write(uint16_t addr,uint8_t* buff,uint16_t len)
+{
+	if(!prv_i2c)
+	{
+		return HAL_ERROR;
+	}
+	
+	HAL_StatusTypeDef rst;
+	
+	uint16_t i = 0;
+    uint16_t cnt = 0;        //写入字节计数
+	uint16_t head;
+	uint16_t left;
+	uint16_t tail;
+	
+	if((len + addr - 1)/prv_i2c->page_size == addr/prv_i2c->page_size)		//如果在同一页
+	{
+		rst = HAL_I2C_Mem_Write(prv_i2c->hi2c, prv_i2c->address | 0x00, addr, prv_i2c->addr_num, buff, len, 0xFFFF);
+		HAL_Delay(prv_i2c->delay * len);
+	}
+	else
+	{
+		head = (addr / prv_i2c->page_size+1) * prv_i2c->page_size - addr;	//开始页剩余待写入字节数
+		left = len - head;													//除去开始页剩下字节数
+		tail=left-left/prv_i2c->page_size*prv_i2c->page_size;				//末页待写入字节数
+		
+		rst = HAL_I2C_Mem_Write(prv_i2c->hi2c, prv_i2c->address | 0x00, addr, prv_i2c->addr_num, buff, head, 0xffff);
+		HAL_Delay(prv_i2c->delay * head);
+		
+		for(i=0; i<left/prv_i2c->page_size; i++)
+		{
+			rst = HAL_I2C_Mem_Write(prv_i2c->hi2c, prv_i2c->address | 0x00, addr + head + i * prv_i2c->page_size, prv_i2c->addr_num, buff + head + i * prv_i2c->page_size , prv_i2c->page_size, 0xFFFF);
+			HAL_Delay(prv_i2c->delay*prv_i2c->page_size);
+			
+			if(rst != HAL_OK)
+			{
+				return (unsigned char)rst;
+			}
+		}
+		
+		rst = HAL_I2C_Mem_Write(&hi2c1, prv_i2c->address | 0x00, addr + head + i * prv_i2c->page_size, prv_i2c->addr_num, buff + head+ i * prv_i2c->page_size, tail, 0xffff);
+		HAL_Delay(prv_i2c->delay * tail);
+	}
+	
+	return (unsigned char)rst;
+}
+
+unsigned char AT24C_Read(uint16_t addr,uint8_t* buff,uint16_t len)
+{
+	if(!prv_i2c)
+	{
+		return HAL_ERROR;
+	}
+	
+	HAL_StatusTypeDef rst;
+	
+	if(addr + len < 0x8000)
+	{
+		rst = HAL_I2C_Mem_Read(prv_i2c->hi2c, prv_i2c->address | 0x01, addr, prv_i2c->addr_num, buff, len, 0xffff);
+	}
+	
+	return (unsigned char)rst;
+}
+
+uint8_t AT24C_Check(void)
+{
+        uint8_t temp;
+        uint8_t data = 0XAB;
+
+        AT24C_Read(0x00,&temp,1);//避免每次开机都写AT24CXX                           
+
+        if(temp != 0XAB)
+		{
+                return 1;                   
+		}
+        else//排除第一次初始化的情况
+        {
+            AT24C_Write(0x00,&data,1);
+            AT24C_Read(0x00,&temp,1);
+			
+			if(temp != 0XAB)
+			{
+					return 1;
+			}
+        }
+        return 0;                                                                                          
+}
+
+
+
+void AT24C_Fill(uint8_t fill)
+{
+	uint8_t erase[512];//这个缓存太大
+	memset(erase,fill,512);
+	for(uint16_t i=0;i<64;i++)
+	{
+		AT24C_Write(i*512,erase,512);
+	}
+}
+
+