USB Serial on LPC Xpresso 54114

Mbed Studio
,
1

Hi
I work with an LPCXpresso54114 on mbed studio.
I want to use USBSerial.

My code is just simple,
#include “mbed.h”
#include “USBSerial.h”
USBSerial serial;
int main(){
serial.printf(“Hello World!\n”);
}

However, the output says
Warning: L3912W: Option ‘legacyalign’ is deprecated.
Error: L6218E: Undefined symbol USBSerial::USBSerial(bool, unsigned short, unsigned short, unsigned short) (referred from BUILD/LPC54114/ARMC6/main.o).
Error: L6218E: Undefined symbol USBSerial::~USBSerial() (referred from BUILD/LPC54114/ARMC6/main.o).
not builded.

USB API is not ready to LPC54114?
Or is there any problem on the code?

Best

2

Hello Tomo,

Yes, it seems that there is no USBDevice driver (UBSSerial included) available yet .

To check open targets.json and search for “LPC54114”. The “device_has” section does not seem to have an “USBDEVICE” item.

1 Like
3

Thanks a lot!