Diff: main.cpp

Revision:

0:5fac9aab2679

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon May 31 10:53:57 2021 +0800
@@ -0,0 +1,56 @@
+#include "stm32f103c8t6.h"
+#include "mbed.h"
+#include "WebUSBDFU.h"
+
+DigitalOut  myled(LED1);
+
+bool detached = false;
+void onDetachRequested() {
+    detached = true;
+}
+
+void resetIntoBootloader() {
+    // Turn on write access to the backup registers
+    __PWR_CLK_ENABLE();
+    HAL_PWR_EnableBkUpAccess();
+
+    // Write the magic value to force the bootloader to run
+    BKP->DR2 = 0x544F;
+    BKP->DR1 = 0x4F42;
+
+    HAL_PWR_DisableBkUpAccess();
+
+    // Reset and let the bootloader run
+    NVIC_SystemReset();
+}
+
+int main()
+{
+    confSysClock();     //Configure system clock (72MHz HSE clock, 48MHz USB clock)
+
+    /* Note: 1209:0001 is a test VID/PID pair - it should be changed before using in
+     * a real application */
+    WebUSBDFU usbDFU(0x1209, 0x0001, 0x0001, false);
+    usbDFU.attach(onDetachRequested);
+
+    while(1) {
+        // Check the DFU status
+        if (!usbDFU.configured()) {
+            usbDFU.connect(false);
+        }
+        if (detached) {
+            for (int i=0; i < 3; i++) {
+                myled = 1;
+                wait_ms(100);
+                myled = 0;
+                wait_ms(100);
+            }
+            resetIntoBootloader();
+        }
+
+        // Do normal stuff
+        myled = !myled;
+        wait_ms(500);
+    }
+}
+