nrf51822 UART Problem

RE: nrf51822 UART Problem

MartinBL — Fri, 05 Jan 2018 08:49:40 GMT

When you say RX is pin 9 and TX is pin 10 I assume that you are talking about the things mentioned in chapter 6 of the BMD 200 Module datasheet? As you may know it is perfectly fine to use any GPIO for UART communication and pin 9 and 10 was simply what Rigado decided on for whatever reason.

Are you using some sort of UART <-> USB FTDI gadget?
Have you made sure that you have TX on your BMD connected to RX on your peer device and vise versa?
Are you able to run any other applications on your module? Maybe it is broken?

RE: nrf51822 UART Problem

Nitin — Fri, 05 Jan 2018 03:32:15 GMT

Yes, I am using pin number 11 for RX and Pin number 9 for TX. I have set all the settings across serial terminal also. I am sending it as an integer value. But for BMD 200 pin number 9 is used as RX and pin number 10 is used as TX according to the data sheet of BMD 200. Even for same configurations as that of development kit/BMD 200, it is not transmitting any value. Is there anything I am missing??

RE: nrf51822 UART Problem

MartinBL — Thu, 04 Jan 2018 13:29:46 GMT

Your code works fine for me when I test it on an nRF51 DK development kit. It prints out "-D-ZNV".9W MMMMM" in an endless loop. Have you double checked that you are using the correct pins? And that your serial terminal is configured to use the correct settings (flow control, stop bit, baud rate, etc)?