TM4c1294 - Program over Ethernet

[michanisani 6]

1.

Run program eflash.exe with the following parameters:

This program downloads a file to a remote device, using the Ethernet Boot Loader.

Open windows CMD

eflash -i <IP address>  -m <MAC address>  <file_to_program.bin>

 

IP address foirmat: XXX.XXX.XXX.XXX

MAC address format example: 00.1A.B6.03.0F.0C

 

2.

Jump in your TM4C1294 board to the boot loader

 

void UpgradeSoftware(void)

    {

 

 uint32_t *Reg_OPA_REG_1;

 

    // Disable all processor interrupts.  Instead of disabling them

    // one at a time (and possibly missing an interrupt if new sources

    // are added), 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;

 

    // Also disable the SysTick interrupt.

    SysTickIntDisable();

    SysTickDisable();

 

 

    // Return control to the boot loader.  This is a call to the SVC

    // handler in the flashed-based boot loader, or to the ROM if configured.

 

    ROM_UpdateEMAC(g_ui32SysClock);

 

    }

 

3.

How to find your board MAC address

Using LM Flash programmer connected to USB port of CPU card

 

Or

 

void read_mac_address()

  {

    uint32_t ui32User0, ui32User1;

    uint8_t pui8MAC[6];

 

    // Get the MAC address from the user registers.

    MAP_FlashUserGet(&ui32User0, &ui32User1);

    // Convert the 24/24 split MAC address from NV ram into a 32/16 split MAC

    // address needed to program the hardware registers, then program the MAC

    // address into the Ethernet Controller registers.

    pui8MAC[0] = ((ui32User0 >>  0) & 0xff);

    pui8MAC[1] = ((ui32User0 >>  8) & 0xff);

    pui8MAC[2] = ((ui32User0 >> 16) & 0xff);

    pui8MAC[3] = ((ui32User1 >>  0) & 0xff);

    pui8MAC[4] = ((ui32User1 >>  8) & 0xff);

    pui8MAC[5] = ((ui32User1 >> 16) & 0xff);

 

    sprintf(Str, "MAC address= %02x-%02x-%02x-%02x-%02x-%02x\n",pui8MAC[0],pui8MAC[1],pui8MAC[2],pui8MAC[3],pui8MAC[4],pui8MAC[5]);

    UARTprintf(Str);

  }

 

 

 

 

4.

https://github.com/kroesche/stellaris_eflash

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bootp_server.c

bootp_server.h

eflash.c

eflash.h

SW_update by Enternet.rar

[michanisani 6]

One missing part:

When there is disconnection during the update, we need to force the TM4C1294 to enter to boot mode, sine the flash is corrupted.

here is the solution:

 

https://e2e.ti.com/support/microcontrollers/tiva_arm/f/908/p/403572/1430020