//***************************************************************************** // // Generic configuration is handled in this function. // // This function is called by the start up code to perform any configuration // necessary before calling the update routine. It is responsible for setting // the system clock to the expected rate and setting flash programming // parameters prior to calling ConfigureUSBInterface() to set up the USB // hardware. // // \return None. // //***************************************************************************** void UpdaterMain(void) { // // Make sure NVIC points at the correct vector table. // HWREG(NVIC_VTABLE) = 0; // // Set the system clock to run at 50MHz from the PLL. // ROM_SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_16MHZ); // // Configure the USB interface and power the bus. // ConfigureUSBInterface(); // // Call the updater function. This will attempt to load a new image // into flash from a USB memory stick. // UpdaterUSB(); }
//***************************************************************************** // // Generic configuration is handled in this function. // // This function is called by the start up code to perform any configuration // necessary before calling the update routine. It is responsible for setting // the system clock to the expected rate and setting flash programming // parameters prior to calling ConfigureUSBInterface() to set up the USB // hardware. // // \return None. // //***************************************************************************** void UpdaterMain(void) { // // Make sure NVIC points at the correct vector table. // HWREG(NVIC_VTABLE) = 0; // // Run from the PLL at 120 MHz. // g_ui32SysClock = MAP_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ | SYSCTL_OSC_MAIN | SYSCTL_USE_PLL | SYSCTL_CFG_VCO_480), 120000000); // // Enable lazy stacking for interrupt handlers. This allows floating-point // instructions to be used within interrupt handlers, but at the expense of // extra stack usage. // ROM_FPULazyStackingEnable(); // // Configure the USB interface and power the bus. // ConfigureUSBInterface(); // // Call the updater function. This will attempt to load a new image // into flash from a USB memory stick. // UpdaterUSB(); }