According to the link, It seems like LPCxpresso could support LPC4357, tool-chain,building, debugging and downloading to flash etc... I ordered EVB(OM13040), keil's, and looking for the IDE. Keil's IDE are too expense for me.
IF LPCxpresso support to LPC4357, that will be great.
Content originally posted in LPCWare by lpcxpresso-support on Fri Jul 17 02:21:03 MST 2015 Yes, LPCXpresso supports all NXP LPC8xx, LPC1xxx, LPC2xxx, LPC3xxx, LPC4xxx and LPC54xxx parts.