75 lines
2.9 KiB
C
75 lines
2.9 KiB
C
#ifndef __I2C_TOUCH_H
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#define __I2C_TOUCH_H
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#include "stm32h7xx.h"
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/*使用软件IIC，把SOFT_IIC宏设置为1，硬件IIC则设置为0
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!!使用硬件IIC时非常容易出现错误，不推荐*/
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#define SOFT_IIC 1
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/* 如果用的是4.3寸/5寸的RGB屏，其触摸芯片可能是GT1151QM，它的I2C地址不同，需要定义这个宏切换一下地址 */
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#define LCD_TOUCH_IC_GT1151QM
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#ifndef LCD_TOUCH_IC_GT1151QM
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#define GTP_ADDRESS 0xBA
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#else
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#define GTP_ADDRESS 0x28
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/* 4.3寸和5寸电容屏都用 GT1151QM 这个新触摸芯片，
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只能选择这两个屏幕当中的一个，默认选5寸电容屏（定义宏为1选中）*/
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#define TOUCH_GT1151QM_LCD_4_3 0 //使用的是4.3寸电容屏(GT1151QM)
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#define TOUCH_GT1151QM_LCD_5 1 //使用的是5寸电容屏(GT1151QM)
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#endif
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#define I2CT_FLAG_TIMEOUT ((uint32_t)0x1000)
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#define I2CT_LONG_TIMEOUT ((uint32_t)(10 * I2CT_FLAG_TIMEOUT))
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/*I2C引脚*/
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#define GTP_I2C I2C2
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#define GTP_I2C_CLK_ENABLE() __HAL_RCC_I2C2_CLK_ENABLE()
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#define GTP_I2C_CLK_INIT RCC_APB1PeriphClockCmd
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#define GTP_I2C_SCL_PIN GPIO_PIN_4
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#define GTP_I2C_SCL_GPIO_PORT GPIOH
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#define GTP_I2C_SCL_GPIO_CLK_ENABLE() __HAL_RCC_GPIOH_CLK_ENABLE()
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#define GTP_I2C_SCL_AF GPIO_AF4_I2C2
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#define GTP_I2C_SDA_PIN GPIO_PIN_5
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#define GTP_I2C_SDA_GPIO_PORT GPIOH
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#define GTP_I2C_SDA_GPIO_CLK_ENABLE() __HAL_RCC_GPIOH_CLK_ENABLE()
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#define GTP_I2C_SDA_AF GPIO_AF4_I2C2
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/*复位引脚*/
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#define GTP_RST_GPIO_PORT GPIOG
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#define GTP_RST_GPIO_CLK_ENABLE() __HAL_RCC_GPIOG_CLK_ENABLE()
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#define GTP_RST_GPIO_PIN GPIO_PIN_7
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/*中断引脚*/
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#define GTP_INT_GPIO_PORT GPIOG
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#define GTP_INT_GPIO_CLK_ENABLE() __HAL_RCC_GPIOG_CLK_ENABLE()
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#define GTP_INT_GPIO_PIN GPIO_PIN_3
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#define GTP_INT_EXTI_IRQ EXTI3_IRQn
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/*中断服务函数*/
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#define GTP_IRQHandler EXTI3_IRQHandler
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//软件IIC使用的宏
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#define I2C_SCL_1() HAL_GPIO_WritePin(GTP_I2C_SCL_GPIO_PORT, GTP_I2C_SCL_PIN,GPIO_PIN_SET) /* SCL = 1 */
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#define I2C_SCL_0() HAL_GPIO_WritePin(GTP_I2C_SCL_GPIO_PORT, GTP_I2C_SCL_PIN,GPIO_PIN_RESET) /* SCL = 0 */
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#define I2C_SDA_1() HAL_GPIO_WritePin(GTP_I2C_SDA_GPIO_PORT, GTP_I2C_SDA_PIN,GPIO_PIN_SET) /* SDA = 1 */
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#define I2C_SDA_0() HAL_GPIO_WritePin(GTP_I2C_SDA_GPIO_PORT, GTP_I2C_SDA_PIN,GPIO_PIN_RESET) /* SDA = 0 */
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#define I2C_SDA_READ() HAL_GPIO_ReadPin(GTP_I2C_SDA_GPIO_PORT, GTP_I2C_SDA_PIN) /* 读SDA口线状态 */
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//函数接口
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void I2C_Touch_Init(void);
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uint32_t I2C_WriteBytes(uint8_t ClientAddr,uint8_t* pBuffer, uint8_t NumByteToWrite);
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uint32_t I2C_ReadBytes(uint8_t ClientAddr,uint8_t* pBuffer, uint16_t NumByteToRead);
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void I2C_ResetChip(void);
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void I2C_GTP_IRQDisable(void);
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void I2C_GTP_IRQEnable(void);
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#endif /* __I2C_TOUCH_H */
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