Diff: z_example/7_USBMemory_copy0.cpp

Revision:

3:35ac9ee7d2d6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/z_example/7_USBMemory_copy0.cpp	Wed Aug 07 05:39:01 2019 +0000
@@ -0,0 +1,125 @@
+// Original
+//      https://os.mbed.com/users/jeonbc/code/stm32-disco-example/
+//
+// Modified by K.Arai
+//      July 25th, 2019
+//
+
+#include "select_program.h"
+//#define EXAMPLE_7_USB_MSD
+//#ifdef EXAMPLE_7_USB_MSD
+#if 0
+
+#include <stdlib.h>
+
+#include "mbed.h"
+#include "LCD_DISCO_F769NI.h"
+#include "USBHostMSD.h"
+#include "FATFileSystem.h"
+
+LCD_DISCO_F769NI lcd;
+
+DigitalOut led_green(LED1);
+DigitalOut led_orange(LED2);
+DigitalOut led_red(LED3);
+DigitalOut led_blue(LED4);
+
+Serial pc(SERIAL_TX, SERIAL_RX, 115200);
+
+USBHostMSD msd;
+FATFileSystem fs("usb");
+
+void msd_task(void const *)
+{
+    int i = 0;
+    int err;
+
+    printf("wait for usb memory stick insertion\r\n");
+    while(1) {
+        //pc.printf("line:%d\r\n", __LINE__);
+        wait_ms(500);
+        // try to connect a MSD device
+        while(!msd.connect()) {
+            pc.printf("line:%d\r\n", __LINE__);
+            wait_ms(500);
+        }
+        if (fs.mount(&msd) != 0) {
+            pc.printf("line:%d\r\n", __LINE__);
+            continue;
+        } else {
+            pc.printf("file system mounted\n");
+        }
+
+        pc.printf("line:%d\r\n", __LINE__);
+        if  (!msd.connect()) {
+            pc.printf("line:%d\r\n", __LINE__);
+            continue;
+        }
+
+        // in a loop, append a file
+        // if the device is disconnected, we try to connect it again
+
+        // append a file
+        File file;
+        err = file.open(&fs, "test1.txt", O_WRONLY | O_CREAT |O_APPEND);
+
+        pc.printf("line:%d\r\n", __LINE__);
+        if (err == 0) {
+            char tmp[100];
+            sprintf(tmp,"Hello fun USB stick  World: %d!\r\n", i++);
+            file.write(tmp,strlen(tmp));
+            sprintf(tmp,"Goodbye World!\r\n");
+            file.write(tmp,strlen(tmp));
+            file.close();
+        } else {
+            pc.printf("FILE == NULL\r\n");
+        }
+        ThisThread::sleep_for(500);
+        pc.printf("again\n");
+        // if device disconnected, try to connect again
+        while (msd.connected()) {
+            wait_ms(500);
+        }
+        while (fs.unmount() < 0) {
+            wait_ms(500);
+            pc.printf("unmount\n");
+        }
+    }
+}
+
+int main()
+{
+    pc.baud(115200);
+
+    pc.printf("\x1b[2J\x1b[H %s\r\n %s %s (UTC)\r\n",
+              __FILE__, __DATE__, __TIME__);
+    lcd.DisplayStringAt(0, LINE(1), (uint8_t *)"MBED EXAMPLE", CENTER_MODE);
+    ThisThread::sleep_for(500);
+
+    Thread msdTask(msd_task, NULL, osPriorityNormal, 1024 * 6);
+    pc.printf("line:%d\r\n", __LINE__);
+
+    lcd.Clear(LCD_COLOR_BLUE);
+    lcd.SetBackColor(LCD_COLOR_BLUE);
+    lcd.SetTextColor(LCD_COLOR_WHITE);
+
+    BSP_LCD_SetFont(&Font24);
+    lcd.DisplayStringAt(0, LINE(7), (uint8_t *)"HAVE FUN !!!", CENTER_MODE);
+
+    while(true) {
+        // WARNING: LEDs are OFF
+        led_green = 1;
+        led_orange = 1;
+        led_red = 1;
+        led_blue = 1;
+        ThisThread::sleep_for(200);
+        // WARNING: LEDs are ON
+        led_green = 0;
+        led_orange = 0;
+        led_red = 0;
+        led_blue = 0;
+        ThisThread::sleep_for(1000);
+    }
+}
+
+#endif