Tessie Swift

Hello,the chip I use is LPC1768, and I use keil5 to write programs. The problem encountered now is that you need to use the logic analyzer function in keil5 debug used to detect the status of the IO port, but cannot add pins like STM32 The situation is as follows: Wait for some advice. Thank you!

I want to use LM3914N to display the power level, 12v input, but it is not bright enough after being turned on. It is only 1.8v when measured with a voltmeter. What can be used to increase the voltage after turning on and the voltage can be above 3.3v? Many thanks for help!