Version 1.2.2.0 DFU Support

1 files changed, 110 insertions, 0 deletions

diff --git a/Software/Embedded_SW/Embedded/Common/Utilities/Update.c b/Software/Embedded_SW/Embedded/Common/Utilities/Update.c
new file mode 100644
index 000000000..422c1632b
--- /dev/null
+++ b/Software/Embedded_SW/Embedded/Common/Utilities/Update.c
@@ -0,0 +1,110 @@
+
+#include "include.h"
+//#include <stdbool.h>
+#include <ti/sysbios/knl/Semaphore.h>
+#include <ti/sysbios/BIOS.h>
+
+#include <driverlib/rom.h>
+#include <driverlib/sysctl.h>
+#include <driverlib/usb.h>
+#include <usblib/usblib.h>
+#include <usblib/device/usbdevice.h>
+#include <inc/hw_nvic.h>
+#include <inc/hw_types.h>
+#include <inc/hw_memmap.h>
+
+
+#include "Drivers/USB_Communication/USBCDCD.h"
+
+
+extern Semaphore_Handle updateSem;
+
+
+void UpdateUsb(void)
+{
+    //
+    // Terminate the USB device and detach from the bus.
+    //
+    USBDCDTerm(0);
+
+    //
+    // Disable all interrupts.
+    //
+    ROM_IntMasterDisable();
+
+    //
+    // Disable SysTick and its interrupt.
+    //
+    ROM_SysTickIntDisable();
+    ROM_SysTickDisable();
+
+    //
+    // Disable all processor interrupts.  Instead of disabling them one at a
+    // time, a direct write to NVIC is done to disable all peripheral
+    // interrupts.
+    //
+    HWREG(NVIC_DIS0) = 0xffffffff;
+    HWREG(NVIC_DIS1) = 0xffffffff;
+    HWREG(NVIC_DIS2) = 0xffffffff;
+    HWREG(NVIC_DIS3) = 0xffffffff;
+    HWREG(NVIC_DIS4) = 0xffffffff;
+
+    //
+    // Enable and reset the USB peripheral.
+    //
+    ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_USB0);
+    ROM_SysCtlPeripheralReset(SYSCTL_PERIPH_USB0);
+    ROM_USBClockEnable(USB0_BASE, 8, USB_CLOCK_INTERNAL);
+
+    //
+    // Wait for about a second.
+    //
+    ROM_SysCtlDelay(SYS_CLK_FREQ / 3);
+
+    //
+    // Re-enable interrupts at the NVIC level.
+    //
+    ROM_IntMasterEnable();
+
+    //
+    // Call the USB boot loader.
+    //
+    ROM_UpdateUSB(0);
+
+    //
+    // Should never get here, but just in case.
+    //
+    while(1)
+    {
+    }
+}
+
+Void updateTask(UArg arg0, UArg arg1)
+{
+
+	//
+	// Wait until new updTE ARRIVED
+	//
+	Semaphore_pend(updateSem, BIOS_WAIT_FOREVER);
+	UpdateUsb();
+}
+extern Semaphore_Handle ReconnectSem;
+
+
+void ReconnectUsb(void)
+{
+    //USBCDC_close();
+}
+
+Void ReconnectTask(UArg arg0, UArg arg1)
+{
+
+    //
+    // Wait until new updTE ARRIVED
+    //
+    while (1)
+    {
+        Semaphore_pend(ReconnectSem, BIOS_WAIT_FOREVER);
+        ReconnectUsb();
+    }
+}