standalone_tcflash.mac.bak

disableCaches()
{
__var Reg;
  __message("Disabling MPU and Caches...");
  // Disable MPU, I and D caches
  Reg = __jtagCP15ReadReg(1, 0, 0, 0);
  Reg &= ~((1<<12) | (1<<2));
  __jtagCP15WriteReg(1, 0, 0, 0, Reg);
  // Disable ECC cache
  Reg = __jtagCP15ReadReg(1, 0, 0, 1);
  Reg &= 0xFFFFFFC7; // Clear bits 5:3
  Reg |= (0x4 << 3);
  __jtagCP15WriteReg(1, 0, 0, 1, Reg);
}

configureWatchdog()
{
  if(!(__readMemory32(0xB060C048, "Memory") & 0x01000000))  // HWDG_CFG.LOCK == 0
  {
    __writeMemory32(0xEDACCE55, 0xB060C000, "Memory"); // HWDG_PROT unlock key
    __writeMemory32(0x00000000, 0xB060C02C, "Memory"); // HWDG_TRG0CFG = 0
    __writeMemory32(0xEDACCE55, 0xB060C000, "Memory"); // HWDG_PROT unlock key
    __writeMemory32(0x00000000, 0xB060C030, "Memory"); // HWDG_TRG1CFG = 0
    __writeMemory32(0xEDACCE55, 0xB060C000, "Memory"); // HWDG_PROT unlock key
    __writeMemory32(0x00000000, 0xB060C034, "Memory"); // HWDG_RUNLLS = 0
    __writeMemory32(0xEDACCE55, 0xB060C000, "Memory"); // HWDG_PROT unlock key
    __writeMemory32(0x01000000, 0xB060C038, "Memory"); // HWDG_RUNULS = 0x01000000
    __writeMemory32(0xEDACCE55, 0xB060C000, "Memory"); // HWDG_PROT unlock key
    __writeMemory32(0x01000005, 0xB060C048, "Memory"); // HWDG_CFG, LOCK = 1, WDEN = 1, ALLOWSTOPCLK = 1
  }
}

setup()
{
  disableCaches();
  configureWatchdog();
}

execUserPreload()
{
  setup();
}