[fatfs] Add "DataLogger" example and "list_sd()" command

Author: onelife

examples/Blink/Blink.ino

@@ -1,6 +1,6 @@
 #include <rtt.h>
 
-// NOTES: "CONFIG_USING_FINSH" and "CONFIG_USING_SPISD" in "rtt.h" may be turned off to save memory
+// NOTES: "CONFIG_USING_FINSH" and "CONFIG_USING_SPISD" in "rtconfig.h" may be turned off to save memory
 
 struct rt_thread blink_thread;
 byte blink_thread_stack[1024];

examples/DataLogger/DataLogger.ino

@@ -0,0 +1,49 @@
+#include <rtt.h>
+
+// RT-Thread function called by "RT_T.begin()"
+void rt_setup(void) {
+}
+
+void setup() {
+  RT_T.begin();
+}
+
+// this function will be called by "Arduino" thread
+void loop() {
+  char buf[15];
+  int sensorVal[3];
+  int dataFile = -1;
+  const unsigned int maxCount = 10;
+  static unsigned int count = 0;
+
+  // read sensors once per second for 10 times
+  if (count < maxCount) {
+    count++;
+
+    // read three sensors and convert the result to string:
+    for (int analogPin = 0; analogPin < 3; analogPin++) {
+      sensorVal[analogPin] = analogRead(analogPin);
+    }
+    rt_sprintf(buf, "%03d,%03d,%03d\n", sensorVal[0], sensorVal[1], sensorVal[2]);
+  
+    // open log file.
+    dataFile = open("datalog.txt", O_CREAT | O_RDWR | O_ACCMODE | O_APPEND);
+  
+    // if file opened successfully, then write to it:
+    if (dataFile >= 0) {
+      write(dataFile, buf, rt_strlen(buf));
+      if (maxCount == count) {
+        // flush data to SD:
+        fsync(dataFile);
+      }
+      close(dataFile);
+      // print to the serial port too:
+      rt_kprintf(buf);
+    } else {
+      // if the file isn't open, pop up an error:
+      rt_kprintf("*** error opening \"datalog.txt\" ***\n");
+    }
+  }
+
+  rt_thread_sleep(RT_TICK_PER_SECOND);
+}

examples/FinSH/FinSH.ino

@@ -15,6 +15,8 @@
 // state=0
 // led(id, state)
 
+// NOTES: "CONFIG_USING_SPISD" in "rtconfig.h" may be turned off to save memory
+
 extern "C" {
 
   rt_uint32_t led_id = 0;

library.properties

@@ -1,5 +1,5 @@
 name=RT-Thread
-version=0.4.1
+version=0.4.2
 author=Bernard Xiong <[email protected]>, onelife <[email protected]>
 maintainer=onelife <[email protected]>
 sentence=Real Time Operating System porting for Arduino SAM and SAMD boards

src/components/arduino/drv_spisd.cpp

@@ -853,8 +853,8 @@ static rt_err_t bsp_spiSd_contex_init(struct bsp_sd_contex *ctx,
         ctx->dev.write = bsp_spiSd_write;
         ctx->dev.control = bsp_spiSd_control;
         ctx->dev.user_data = (void *)ctx;
-        ret = rt_device_register(&ctx->dev, name, RT_DEVICE_FLAG_RDWR | \
-            RT_DEVICE_FLAG_REMOVABLE);
+        ret = rt_device_register(&ctx->dev, name,
+            RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE);
     } while (0);
 
     return ret;
@@ -899,8 +899,7 @@ rt_err_t bsp_hw_spiSd_init(void) {
 /*******************************************************************************
  *  Export to FINSH
  ******************************************************************************/
-#if 0   //#ifdef RT_USING_FINSH
-#include "components/finsh/finsh.h"
+#ifdef RT_USING_FINSH
 
 rt_err_t list_sd(void) {
     struct bsp_sd_contex *ctx = SD_CTX();
@@ -914,16 +913,23 @@ rt_err_t list_sd(void) {
         rt_kprintf("Error: open failed!\n");
         return ret;
     }
+    if (RT_EOK != (ret = rt_device_open(ctx->ldev, RT_DEVICE_OFLAG_RDWR))) {
+        rt_kprintf("Error: open ldev failed!\n");
+        rt_device_close(&ctx->dev);
+        return ret;
+    }
     SD_CS(1);
 
     /* Receive CID as a data block (16 bytes) */
     if (sd_send_cmd(ctx, CMD10, 0x00000000, buf_res)) {
         SD_CS(0);
+        rt_device_close(ctx->ldev);
         rt_device_close(&ctx->dev);
         rt_kprintf("Error: Get CID failed!\n");
         return -RT_ERROR;
     }
     SD_CS(0);
+    rt_device_close(ctx->ldev);
 
     rt_kprintf("    SD Card on %s\n", ctx->ldev->parent.name);
     rt_kprintf(" ------------------------------\n");
@@ -964,7 +970,7 @@ rt_err_t list_sd(void) {
 
     return RT_EOK;
 }
-FINSH_FUNCTION_EXPORT(list_sd, list the SD card.)
+FINSH_FUNCTION_EXPORT(list_sd, show SD information.)
 #endif /* RT_USING_FINSH */
 
 /***************************************************************************//**

src/rtconfig.h

@@ -1,10 +1,10 @@
 /***************************************************************************//**
- * @file    rtt.h
+ * @file    rtconfig.h
  * @brief   Arduino RT-Thread library config
  * @author  onelife <onelife.real[at]gmail.com>
  ******************************************************************************/
-#ifndef __RTTHREAD_CFG_H__
-#define __RTTHREAD_CFG_H__
+#ifndef __RTCONFIG_H__
+#define __RTCONFIG_H__
 
 /* Porting Options */
 #define CONFIG_ARDUINO
@@ -151,4 +151,4 @@
 /* Other Options */
 // #define RT_USING_COMPONENTS_INIT     /* Not supported as no access to linker script */
 
-#endif /* __RTTHREAD_CFG_H__ */
+#endif /* __RTCONFIG_H__ */

src/rtt.h

@@ -7,6 +7,9 @@
 #define __RTT_H__
 
 #include "include/rtthread.h"
+#ifdef RT_USING_DFS
+#include "components/dfs/include/dfs_posix.h"
+#endif
 
 
 class RT_Thread {

src/shell_cmd.h

@@ -46,7 +46,7 @@ ADD_SHELL_CMD(cat, print file content, cat, void, const char *filename)
 ADD_SHELL_CMD(copy, copy file or dir, copy, void, const char *src, const char *dst)
 #endif
 #if CONFIG_USING_SPISD
-// ADD_SHELL_CMD(list_sd, show SD information, list_sd, void, void)
+ADD_SHELL_CMD(list_sd, show SD information, list_sd, rt_err_t, void)
 #endif
 
 /* Please add your commands with the following format:
@@ -64,7 +64,7 @@ ADD_SHELL_CMD(copy, copy file or dir, copy, void, const char *src, const char *d
  Example 2: void led_on(void); =>
  ADD_SHELL_CMD(led0_on, Turn on builtin LED, led_on, void, void)
 
- Example 3: long led_set(rt_uint32_t id, rt_int32_t val); =>
+ Example 3: rt_uint32_t led_set(rt_uint32_t id, rt_int32_t val); =>
  ADD_SHELL_CMD(led, Turn on/off any LED, led_set, rt_uint32_t, rt_uint32_t id, rt_uint8_t state)
  */
 // ADD_SHELL_CMD(led, Turn on/off builtin LED, led, rt_uint32_t, rt_uint32_t id, rt_uint8_t state)