lpcware

s1l boot-up issues

Discussion created by lpcware Employee on Jun 15, 2016
Content originally posted in LPCWare by tilpol on Tue Jun 25 06:56:01 MST 2013
<p style="margin: 1em 0px 0px; background-image: none; background-color: #ffffff; font-family: arial, verdana, sans-serif; font-size: 13.600000381469727px; line-height: 20.475000381469727px;"><span style="font-size: 13.600000381469727px; line-height: 20.475000381469727px;">I hope someone may be able to help with the problem I have at the moment.</span><span style="font-size: 13.600000381469727px; line-height: 20.475000381469727px;">I have just received my custom LPC3250 board which is based on the EA3250 evaluation board. I can sucessfully download the kickstart and s1l bootloaders and get the serial prompt on reset.</span>
<p style="margin: 1em 0px 0px; background-image: none; background-color: #ffffff; font-family: arial, verdana, sans-serif; font-size: 13.600000381469727px; line-height: 20.475000381469727px;">Using the s1l monitor program I have verified the SDRAM is working and I can read &amp; write flash. However the next time I press reset or power cycle the board the bootloaders do not start. The only way to recover is to re-download the s1l bootloader and it will boot up fine after the first reset but again fails on any subsequent resets. I don't have JTAG at the moment so can't use that to debug the bootloaders.
<p style="margin: 1em 0px 0px; background-image: none; background-color: #ffffff; font-family: arial, verdana, sans-serif; font-size: 13.600000381469727px; line-height: 20.475000381469727px;">One other question. In the debug monitor when I try the NAND Flash "read" command I always get an error when I try to read the first 10 sectors anything after that is fine. This also happens on my EA3250 board so doesn't seem specific to the new hardware. Is this normal?
<p style="margin: 1em 0px 0px; background-image: none; background-color: #ffffff; font-family: arial, verdana, sans-serif; font-size: 13.600000381469727px; line-height: 20.475000381469727px;">Thanks Ian

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