LPC15xx USB-less ISP

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by EtaPhi on Thu Aug 21 00:54:41 MST 2014
I'm new to NXP microcontroller.
I'm developing a board to control a PMSM with FOC algoritm.
My board is going to use a LPC1519JBD64 or LPC1518JDB64 or LPC1517JBD64 according to the computing resources that my final firmware will need.

I wonder what may happen when ISP_0 (PIO1_9) and ISP_1 (PIO1_11) are both pulled up and my firmware signature isn't valid.
LPC15xx datasheet says that in such case, the USB bootloader is run, but these parts have no USB.

Should I provide my board with dip-switches to select USART0 ISP mode (or C_CAN mode) as a safety measure?

I'll really appreciate any suggestion.