example for edu-riscv64:watchdog,lcd and timer

2022-11-15 15:47:48 +08:00
parent 8c929ba701
commit f22fbc3c94
27 changed files with 1632 additions and 122 deletions
@@ -2,10 +2,49 @@
 #include <string.h>
 #include <transform.h>

+#define I2C_SLAVE_ADDRESS 0x0012U

-void  TestI2C(void)
+void TestI2C(void)
 {
-    
+    // config IIC pin(SCL:34.SDA:35) in menuconfig
+    int iic_fd = PrivOpen(I2C_DEV_DRIVER, O_RDWR);
+    if (iic_fd < 0)
+    {
+        printf("open iic_fd fd error:%d\n", iic_fd);
+        return;
+    }
+    printf("IIC open successful!\n");
+
+    // init iic
+    uint16 iic_address = I2C_SLAVE_ADDRESS;
+
+    struct PrivIoctlCfg ioctl_cfg;
+    ioctl_cfg.ioctl_driver_type = I2C_TYPE;
+    ioctl_cfg.args = (void *)&iic_address;
+
+    if (0 != PrivIoctl(iic_fd, OPE_INT, &ioctl_cfg))
+    {
+        printf("ioctl iic fd error %d\n", iic_fd);
+        PrivClose(iic_fd);
+        return;
+    }
+    printf("IIC configure successful!\n");
+
+    // I2C read and write
+    char tmp_buff[100];
+    while (1)
+    {
+        PrivTaskDelay(1000);
+        PrivWrite(iic_fd, "Hello World!\n", sizeof("Hello World!\n"));
+        printf("msg send:%s\n", "Hello World!\n");
+        PrivTaskDelay(1000);
+        memset(tmp_buff, 0, sizeof(tmp_buff));
+        PrivRead(iic_fd, tmp_buff, sizeof(tmp_buff));
+        printf("msg recv:%s\n", tmp_buff);
+    }
+
+    PrivClose(iic_fd);
+    return;
 }

 PRIV_SHELL_CMD_FUNCTION(TestI2C, a iic test sample, PRIV_SHELL_CMD_MAIN_ATTR);