初始提交卡包 USB 工程

纳入固件源码、屏幕组件、nand_xfer 工具和文档。忽略本机构建产物、sdkconfig，以及含本机路径的依赖锁。

Co-authored-by: Cursor <[email protected]>

components/i2c_bsp/CMakeLists.txt

@@ -0,0 +1,4 @@
+idf_component_register(
+  SRCS "i2c_bsp.c"
+  REQUIRES driver
+  INCLUDE_DIRS "./")

components/i2c_bsp/i2c_bsp.c

@@ -0,0 +1,56 @@
+#include <stdio.h>
+#include "i2c_bsp.h"
+
+
+#define TEST_I2C_PORT I2C_NUM_0
+//#define EXAMPLE_USE_TOUCH    //触控屏的实现
+
+
+#ifndef EXAMPLE_USE_TOUCH
+
+#define I2C_MASTER_SCL_IO 39
+#define I2C_MASTER_SDA_IO 40
+
+void I2C_master_Init(void)
+{
+  i2c_config_t conf = 
+  {
+    .mode = I2C_MODE_MASTER,
+    .sda_io_num = I2C_MASTER_SDA_IO,         // 配置 SDA 的 GPIO
+    .sda_pullup_en = GPIO_PULLUP_ENABLE,
+    .scl_io_num = I2C_MASTER_SCL_IO,         // 配置 SCL 的 GPIO
+    .scl_pullup_en = GPIO_PULLUP_ENABLE,
+    .master.clk_speed = 300 * 1000,  // 为项目选择频率
+    .clk_flags = 0,          // 可选项，可以使用 I2C_SCLK_SRC_FLAG_* 标志来选择 I2C 源时钟
+  };
+  ESP_ERROR_CHECK(i2c_param_config(TEST_I2C_PORT, &conf));
+  ESP_ERROR_CHECK(i2c_driver_install(TEST_I2C_PORT, conf.mode,0,0,0));
+}
+#endif
+
+uint8_t I2C_writr_buff(uint8_t addr,uint8_t reg,uint8_t *buf,uint8_t len)
+{
+  uint8_t ret;
+  uint8_t *pbuf = (uint8_t*)malloc(len+1);
+  pbuf[0] = reg;
+  for(uint8_t i = 0; i<len; i++)
+  {
+    pbuf[i+1] = buf[i];
+  }
+  ret = i2c_master_write_to_device(TEST_I2C_PORT,addr,pbuf,len+1,1000);
+  free(pbuf);
+  pbuf = NULL;
+  return ret;
+}
+uint8_t I2C_read_buff(uint8_t addr,uint8_t reg,uint8_t *buf,uint8_t len)
+{
+  uint8_t ret;
+  ret = i2c_master_write_read_device(TEST_I2C_PORT,addr,&reg,1,buf,len,1000);
+  return ret;
+}
+uint8_t I2C_master_write_read_device(uint8_t addr,uint8_t *writeBuf,uint8_t writeLen,uint8_t *readBuf,uint8_t readLen)
+{
+  uint8_t ret;
+  ret = i2c_master_write_read_device(TEST_I2C_PORT,addr,writeBuf,writeLen,readBuf,readLen,1000);
+  return ret;
+}

components/i2c_bsp/i2c_bsp.h

@@ -0,0 +1,10 @@
+#ifndef I2C_BSP_H
+#define I2C_BSP_H
+#include "driver/i2c.h"
+
+
+void I2C_master_Init(void);
+uint8_t I2C_writr_buff(uint8_t addr,uint8_t reg,uint8_t *buf,uint8_t len);
+uint8_t I2C_read_buff(uint8_t addr,uint8_t reg,uint8_t *buf,uint8_t len);
+uint8_t I2C_master_write_read_device(uint8_t addr,uint8_t *writeBuf,uint8_t writeLen,uint8_t *readBuf,uint8_t readLen);
+#endif