A27系列优化I2C/RTC处理，新增版本A270Y

A27-STEPLDR/Src/board.h

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+#ifndef _BOARD_H
+#define _BOARD_H
+
+/********** display configuration **********/
+#define LCD_INTERFACE_TTL		0
+#define LCD_INTERFACE_LVDS		1
+#define LCD_INTERFACE_CPU		2
+#define LCD_INTERFACE_MIPI		3
+
+#define LCD_WIRING_MODE_RGB		0
+#define LCD_WIRING_MODE_RBG		1
+#define LCD_WIRING_MODE_GRB		2
+#define LCD_WIRING_MODE_GBR		3
+#define LCD_WIRING_MODE_BRG		4
+#define LCD_WIRING_MODE_BGR		5
+
+#define LCD_WIRING_BIT_ORDER_MSB	0
+#define LCD_WIRING_BIT_ORDER_LSB	1
+
+#define LVDS_PANEL_FORMAT_TI	0
+#define LVDS_PANEL_FORMAT_NS	1
+
+#define LVDS_PANEL_DATA_8BIT	0
+#define LVDS_PANEL_DATA_6BIT	1
+
+#define CPU_PANEL_18BIT_MODE     0
+#define CPU_PANEL_16BIT_MODE     1
+#define CPU_PANEL_9BIT_MODE      2
+#define CPU_PANEL_8BIT_MODE      3
+
+
+#define LCD_ROTATE_ANGLE_0		0
+#define LCD_ROTATE_ANGLE_90		1
+#define LCD_ROTATE_ANGLE_180	2
+#define LCD_ROTATE_ANGLE_270	3
+
+
+#ifdef DOUBLE_POINTER_HALO
+#define LCD_WIDTH	1280
+#define LCD_HEIGHT	480
+#define LCD_BPP		16
+#define LCD_INTERFACE_TYPE		LCD_INTERFACE_LVDS
+#else
+#define LCD_WIDTH	800
+#define LCD_HEIGHT	480
+#define LCD_BPP		32
+#define LCD_INTERFACE_TYPE		LCD_INTERFACE_TTL
+#endif
+
+#define LCD_H_FLIP				0//水平镜像
+#define LCD_V_FLIP				0//垂直镜像
+#define LCD_ROTATE_ANGLE        LCD_ROTATE_ANGLE_0
+
+
+#if LCD_INTERFACE_TYPE == LCD_INTERFACE_TTL
+#define LCD_WIRING_MODE		LCD_WIRING_MODE_RGB
+#define LCD_WIRING_BIT_ORDER	LCD_WIRING_BIT_ORDER_LSB
+#elif LCD_INTERFACE_TYPE == LCD_INTERFACE_LVDS
+#define LCD_WIRING_MODE			LCD_WIRING_MODE_BGR
+#define LCD_WIRING_BIT_ORDER	LCD_WIRING_BIT_ORDER_MSB
+#define LVDS_SCREEN_RST_GPIO	74
+#define LVDS_PANEL_FORMAT		LVDS_PANEL_FORMAT_TI
+#define LVDS_PANEL_DATA			LVDS_PANEL_DATA_8BIT
+#elif LCD_INTERFACE_TYPE == LCD_INTERFACE_CPU
+#define CPU_PANEL_DATA			CPU_PANEL_8BIT_MODE
+#elif LCD_INTERFACE_TYPE == LCD_INTERFACE_MIPI
+#define LCD_WIRING_MODE			LCD_WIRING_MODE_RGB
+#define LCD_WIRING_BIT_ORDER	LCD_WIRING_BIT_ORDER_MSB
+#endif
+
+#define FB_SIZE		(LCD_WIDTH * LCD_HEIGHT * LCD_BPP / 8)
+
+#define VIDEO_DISPLAY_WIDTH			LCD_WIDTH
+#define VIDEO_DISPLAY_HEIGHT		LCD_HEIGHT
+#define VIDEO_DISPLAY_BUF_NUM		2
+
+#if (LCD_WIDTH == 1024 && LCD_HEIGHT == 600)
+#define LCD_TIMING_VBP		1
+#define LCD_TIMING_VFP		1
+#define LCD_TIMING_VSW		30
+#define LCD_TIMING_HBP		100
+#define LCD_TIMING_HFP		100
+#define LCD_TIMING_HSW		370
+#define LCD_CLK_FREQ		50000000
+#elif (LCD_WIDTH == 800 && LCD_HEIGHT == 480)
+#define LCD_TIMING_VBP		1
+#define LCD_TIMING_VFP		1
+#define LCD_TIMING_VSW		30
+#define LCD_TIMING_HBP		50
+#define LCD_TIMING_HFP		50
+#define LCD_TIMING_HSW		180
+#define LCD_CLK_FREQ		35000000
+#elif (LCD_WIDTH == 480 && LCD_HEIGHT == 800)
+#define LCD_TIMING_VBP		1
+#define LCD_TIMING_VFP		1
+#define LCD_TIMING_VSW		30
+#define LCD_TIMING_HBP		50
+#define LCD_TIMING_HFP		50
+#define LCD_TIMING_HSW		180
+#define LCD_CLK_FREQ		35000000
+#elif (LCD_WIDTH == 1280 && LCD_HEIGHT == 720)
+#define LCD_TIMING_VBP		5
+#define LCD_TIMING_VFP		65
+#define LCD_TIMING_VSW		2
+#define LCD_TIMING_HBP		16
+#define LCD_TIMING_HFP		42
+#define LCD_TIMING_HSW		2
+#define LCD_CLK_FREQ		60000000
+#elif (LCD_WIDTH == 1280 && LCD_HEIGHT == 480)
+#define LCD_TIMING_VBP		5
+#define LCD_TIMING_VFP		8
+#define LCD_TIMING_VSW		3
+#define LCD_TIMING_HBP		16
+#define LCD_TIMING_HFP		26
+#define LCD_TIMING_HSW		12
+#define LCD_CLK_FREQ		40000000
+#elif (LCD_WIDTH == 480 && LCD_HEIGHT == 1280)
+#define LCD_TIMING_VBP		6// 14
+#define LCD_TIMING_VFP		6// 16
+#define LCD_TIMING_VSW		16// 2
+#define LCD_TIMING_HBP		16
+#define LCD_TIMING_HFP		36
+#define LCD_TIMING_HSW		26
+#define LCD_CLK_FREQ		50000000
+#elif (LCD_WIDTH == 480 && LCD_HEIGHT == 960)
+#define LCD_TIMING_VBP		20
+#define LCD_TIMING_VFP		20
+#define LCD_TIMING_VSW		10
+#define LCD_TIMING_HBP		30
+#define LCD_TIMING_HFP		40
+#define LCD_TIMING_HSW		10
+#define LCD_CLK_FREQ		33330000
+#else
+#error "no lcd timing configuraion."
+#endif
+/*******************************************/
+
+/*********** uart configuration ************/
+#define UART_MCU_PORT		3
+/*******************************************/
+
+/************ usb configuration ************/
+#define USB_SUPPORT
+#define CONFIG_USB_DWC2_HOST		1
+#define CONFIG_USB_NEW_DWC2_HOST	1
+/*******************************************/
+
+/************ spi configuration ************/
+#define SPI0_QSPI_MODE
+/*******************************************/
+
+/************ i2c configuration ************/
+//#define I2C_SUPPORT
+
+#ifdef I2C_SUPPORT
+#define ANALOG_I2C_SUPPORT		//Analog i2c support
+#ifdef ANALOG_I2C_SUPPORT
+#define I2C_GPIO0_SDA_PIN		49//51
+#define I2C_GPIO0_SCL_PIN		48//50
+#endif
+#endif
+/*******************************************/
+
+#endif