topic connection between development board and uC in LPC Microcontrollers

connection between development board and uC

milan021 — Mon, 20 Jun 2022 13:22:05 GMT

Hello,

I want to put code in uC LPC55S14jbd100e using development board LPC55S16. I saw that I need to use SWD pins for that, but I don't know what I need to connect. I have already seen that I have to put a jumper between pins 2 and 3 on JP8, and put one more jumper on JP7. When I try to debug code, the first time one link appears there, but after that, an error occurs. Could you explain to me what I need to connect ? Is it possible to put code on uC using a development board, with SWD pins ?

Regards,

Milan

Re: connection between development board and uC

milan021 — Mon, 20 Jun 2022 13:38:28 GMT

Re: connection between development board and uC

DanielRuvalcaba — Thu, 23 Jun 2022 20:52:34 GMT

Hi,

It is possible to flash the LPC55S16 in the LPC55S16-EVK via SWD.

I just have one question, are you making a swap between the LPC55S16 of the EVK and the LPC55S14JBD100E?

Best regards, Daniel.

Re: connection between development board and uC

milan021 — Fri, 24 Jun 2022 07:08:55 GMT

Hi,

Thank you, I manage to put a code on my controller using the development environment.

Now, I have a problem with the delay function. I only have an internal oscillator from the uC. I set the internal oscillator 12MHz on peripherals, but I don't know what I have to set on the main code. Could you write me a part of the code for this function ?

Best regards,

Milan

Re: connection between development board and uC

DanielRuvalcaba — Fri, 24 Jun 2022 15:14:37 GMT

You can use the available timer examples in the SDK (available in here) to create a delay function.

I'm dropping you some links that might help you:

https://community.nxp.com/t5/MCUXpresso-IDE/Delay-function-with-MCUXpresso-and-frdm-k64f-does-not-work/m-p/864301

https://community.nxp.com/t5/CodeWarrior-for-MCU/Is-there-a-delay/td-p/175061

https://community.nxp.com/t5/Kinetis-Microcontrollers/Delay-function/m-p/920485

I hope this helps, Daniel.