lpcware

LPC800 mini kit - cannot enter ISP & Reset mode

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by gazelle on Mon May 20 00:02:18 MST 2013

Hello - I have similar phenomenon - Initially the LPC800 mini board was entering ISP boot mode (http://www.lpcware.com/lpc800-mini-kit).


I downloaded latest FlashMagic ... 7.47.3157 and connection with board was established and was able to read back Device signature ...


However later I erased first the memory and Flashed<strong> LPC810M021FN8</strong> device  with LPC810_Blinky_0_2.hex(https://github.com/microbuilder/LPC810_CodeBase/tree/master/tools)


and observed that:


<ul>
<li>I cannot reset any longer the device (NGX board OM13002+598) - (pushing reset button does not affect the blinking process)</li>
<li>I cannot enter ISP mode any longer ... pushing ISP button (+reset button) does not enter device in ISP mode, blinking process continues</li>
</ul>

So I also noticed I had "Erase all Flash+Code Rd Prot" flag ON during Erase process - could this affect the initial bootloader to become erased ?


Another assumption is that the pin configuration file is wrong and causes ISP mode to become inaccessible ... -


Does any one knows how I can put these devices back into ISP mode ?


Is the pin assignment file the cause or is also the factory bootloader erased ?


I have attached the settings of FlashMagic as I used it to flash the demo *.hex file


Thanks for all help !


Michel


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