加入EEPROM-BL24C02

Power_Pico/BSP/EEPROM/BL24C02.c

@@ -0,0 +1,125 @@
+#include "BL24C02.h"
+#include "i2c.h"
+
+SysSettings_T sys_settings = {
+	.backlight_level = 50,
+	.key_sound_enable = 1,
+	.language_select = 0,
+	.rotation = 0
+};
+
+static void BL24C02_Write(uint8_t addr, uint16_t length, uint8_t buff[])
+{
+	HAL_I2C_Mem_Write(&hi2c1, BL24C02_ADDRESS<<1, addr, I2C_MEMADD_SIZE_8BIT, buff, length, 10);
+}
+
+static void BL24C02_Read(uint8_t addr, uint8_t length, uint8_t buff[])
+{
+	HAL_I2C_Mem_Read(&hi2c1, BL24C02_ADDRESS<<1, addr, I2C_MEMADD_SIZE_8BIT, buff, length, 10);
+}
+
+static void delay_ms(uint32_t ms)
+{
+	HAL_Delay(ms);
+}
+
+/******************************************
+EEPROM Data description:
+[0x00]: 0x55 for check
+[0x01]: 0xAA for check
+
+[0x10]: user backlight_level setting
+[0x11]: user key_sound_enable setting
+[0x12]: user language_select setting
+[0x13-14]: user rotation setting
+
+[0x20-]: update command storage area, "update\r\n"
+*******************************************/
+
+// to check the Data is right and the EEPROM is working, 0-ok, 1-erro
+uint8_t EEPROM_Init_Check(void)
+{
+	uint8_t check_buff[2];
+	delay_ms(10);
+	BL24C02_Read(0,2,check_buff);
+	if(check_buff[0] == 0x55 && check_buff[1] == 0xAA)
+	{
+		return 0;//check OK
+	}
+	else
+	{
+		check_buff[0] = 0x55;
+		check_buff[1] = 0xAA;
+		delay_ms(10);
+		BL24C02_Write(0,2,check_buff);
+		memset(check_buff,0,2);
+		delay_ms(10);
+		BL24C02_Read(0,2,check_buff);
+		if(check_buff[0] == 0x55 && check_buff[1] == 0xAA)
+			return 0;//check ok
+	}
+	return 1;//check erro
+}
+
+
+// to Save the settings
+void EEPROM_SysSetting_Save(void)
+{
+	uint8_t buff[5];
+	buff[0] = sys_settings.backlight_level;
+	buff[1] = sys_settings.key_sound_enable;
+	buff[2] = sys_settings.language_select;
+	buff[3] = (uint8_t)(sys_settings.rotation & 0x00FF);
+	buff[4] = (uint8_t)((sys_settings.rotation >> 8) & 0x00FF);
+	BL24C02_Write(0x10,5,buff);
+}
+
+
+// to Get the settings
+void EEPROM_SysSetting_Get(void)
+{
+	uint8_t buff[5];
+	BL24C02_Read(0x10,5,buff);
+	// 判断是否在范围内
+	if(buff[0] <= 100)
+		sys_settings.backlight_level = buff[0];
+	else
+		sys_settings.backlight_level = 80;
+	if(buff[1] <= 1)
+		sys_settings.key_sound_enable = buff[1];
+	else
+		sys_settings.key_sound_enable = 1;
+	if(buff[2] <= 1)
+		sys_settings.language_select = buff[2];
+	else
+		sys_settings.language_select = 0;
+	uint16_t rotation = (uint16_t)buff[3] | ((uint16_t)buff[4] << 8);
+	if(rotation == 0 || rotation == 90 || rotation == 180 || rotation == 270)
+		sys_settings.rotation = rotation;
+	else
+		sys_settings.rotation = 180;
+}
+
+// to write the update command
+void EEPROM_UpdateCommand_Write(bool is_update)
+{
+	if(is_update) {
+		char cmd[] = "update\r\n";
+		BL24C02_Write(0x20, strlen(cmd), (uint8_t *)cmd);
+	} else {
+		char cmd[] = "-nope-\r\n";
+		BL24C02_Write(0x20, strlen(cmd), (uint8_t *)cmd);
+	}
+}
+
+// to check the update command
+bool EEPROM_UpdateCommand_Check(void)
+{
+	char cmd[10] = {0};
+	BL24C02_Read(0x20, 8, (uint8_t *)cmd);
+	if(strcmp(cmd, "update\r\n") == 0) {
+		return true;
+	} else {
+		return false;
+	}
+}

Power_Pico/BSP/EEPROM/BL24C02.h

@@ -0,0 +1,25 @@
+#ifndef __BL24C02_H
+#define __BL24C02_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+
+#define BL24C02_ADDRESS	0x50
+
+typedef struct {
+	uint8_t  backlight_level;   // 0-100
+	uint8_t  key_sound_enable;  // 0:disable, 1:enable
+	uint8_t  language_select;   // 0:English, 1:Chinese
+	uint16_t  rotation;		    // 0, 90, 180, 270
+} SysSettings_T;
+
+extern SysSettings_T sys_settings;
+
+uint8_t EEPROM_Init_Check(void);
+void EEPROM_SysSetting_Save(void);
+void EEPROM_SysSetting_Get(void);
+void EEPROM_UpdateCommand_Write(bool is_update);
+bool EEPROM_UpdateCommand_Check(void);
+
+#endif