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LPC4357-EVB

zylotech

Hi all,

 

I recently bought a development board LPC4357 - EVB .

I can not so much regarding ARM programming or no experience when it comes ULINK2 , Keil and LPC4357 - EVB .

 

I have downloaded Examples2 \ GPIO \ Gpio_LedBlinky project .

When I program GPIO_ledBlinky in InFlash mode.

All goes well , I see that LED flashes.

 

But when I remove ULINK2 from the USB port when the LED stops flashing.

Should not be the code to be programmed into the LPC4357 chip when selecting " InFlash " ?

 

And why can not program in SPIFI mode (the flash is full chip Erased before i try flash in SPIFI mode)


DIP switch is

1. Down

2. UP

3. UP

4. UP

I get an error like this pop-up message "ERROR: Flash Download failed - "Cortex-M4"

 

in Keil Build Output windows

Load "C:\\LocalData\\LPC4357-EVB\\Examples2\\GPIO\\Gpio_LedBlinky\\Keil\\SPIFI 64MB Debug\\example.axf"

Erase Done.

Programming Failed!

Error: Flash Download failed  -  "Cortex-M4"

Flash Load finished at 14:32:41

 

Best Regards

 

Martin

  • Hi

         Based on what you wrote, I see this is a dual core:

    The Cortex-M4 processor combines the benefits of a microcontroller with high-performance digital signal processing features such as single-cycle MAC, single instruction multiple data (SIMD) techniques, saturating arithmetic and a floating point unit.

    The Cortex-M0 coprocessor off-loads many of the data movement and I/O handling duties that can drain bandwidth from the Cortex-M4 core. The LPC4357 also includes 1 MB Flash memory, 136 KB of data memory, two high-speed USB 2.0 host / OTG / devices and advanced configurable peripherals such as the state configurable timer (SCT), Serial General Purpose I/O (SGPIO), and SPI flash Interface (SPIFI). Other features are Ethernet, LCD, an external memory controller and multiple digital and analog peripherals.

    from NXP development kit based on the dual-core LPC4357 microcontroller.I would take a look at this discussion for some hints: element14: Software examples and demos for the LPC4357-EVB

    I took a look at the example and see "Internal SRAM mode:    This example can run on Internal SRAM mode.".  I bet you choose this or it is the default for the example. If ELF format, it loads into SRAM mode, and runs under control of the ULINK debugger.

    Clem

  • in reply to clem57

    Hi Clem Martins,

     

    Thank you for replying.
    I have selected the Inflash mode in Keil 5

    Here is my setup in Keil5
    image
    Setup Option for Targets
    image

    Setup for Utilities:

    image

    Setup for Debug options

    image
    Setup Debug Settings
    image
    Setup Device Manager
    image
    Video:

     

    But when I remove ULINK2 from the USB port when the LED stops flashing.

    Should not be the code to be programmed into the LPC4357 chip when selecting " InFlash " ?

     

    //

    ZyloTech

  • in reply to zylotech

    Aw! You used debug mode which links the PC to the target for breakpoints and register displays. Once that link terminates, the code is lost even if in flash. Did you actually see the flash being erased and written to?

    Clem

  • in reply to clem57

    Thank you for replying.


    I have succeeded image

    I removed ULINK2 JTAG connector from lpc4357 - EVB and then power off  and power on .


    Thanks a lot Clem Martins  image


    //

    ZyloTech