is it possible to initialize two UART in nrf52832?

RE: is it possible to initialize two UART in nrf52832?

Karl Ylvisaker — Fri, 11 Jun 2021 11:12:18 GMT

Hello,

[quote user="0_velan_1"]while running getting run time error [/quote]

Please make sure to have DEBUG defined in your preprocessor defines, like shown in the included image:

This will make the logger output a detailed error message whenever a non-NRF_SUCCESS error is passed to an APP_ERROR_CHECK.

Do this, and let me know what the error in your logger says.

Best regards,
Karl

RE: is it possible to initialize two UART in nrf52832?

0_velan_1 — Thu, 10 Jun 2021 12:33:49 GMT

hi I used uart example changed tx and rx pin number as 26 and 27

while running getting run time error

here in 27 and 26 pin not interfaced any hardware interfaces

RE: is it possible to initialize two UART in nrf52832?

Karl Ylvisaker — Wed, 09 Jun 2021 07:42:50 GMT

[quote user="0_velan_1"]if I re-initialize need to call sd_nvic_SystemReset(); I think this the way of re-initialize.[/quote]

No, you do not have to do a system reset, you can instead disable and uninit the UART peripheral, and then initialize it again with a different configuration.

Best regards,
Karl

RE: is it possible to initialize two UART in nrf52832?

0_velan_1 — Wed, 09 Jun 2021 06:46:49 GMT

OK, but if I re-initialize need to call sd_nvic_SystemReset(); I think this the way of re-initialize.

is there any other way to re-initialize?

RE: is it possible to initialize two UART in nrf52832?

Karl Ylvisaker — Tue, 08 Jun 2021 12:14:56 GMT

Thank you for editing, elaborating and clarifying your ticket.

Since the nRF52832 only has a single UART hardware instance you must initialize and re-initialize it when you intend to switch the configuration. You may not initialize it twice, since this will generate an INVALID_STATE error.

Best regards,
Karl

RE: can I use two uart in nrf52832 one at a Time software-controlled UARTS? witch between UART1 and UART2 in software control is it possble?

0_velan_1 — Tue, 08 Jun 2021 11:38:00 GMT

i working nrf52832 sdk 16 in that i want to use two uart?

actually nrf52832 have only one hardware interfced UART.but i try to implement two UART1 and UART2 in same program by using software

for that i try to implemrnt uarts like switching method only one UART active at a time

is it possible? and two uart_init() function intialized in main function means any issue?

RE: can I use two uart in nrf52832 one at a Time software-controlled UARTS? witch between UART1 and UART2 in software control is it possble?

Karl Ylvisaker — Tue, 08 Jun 2021 11:34:05 GMT

Hello,

Please write a proper ticket, and do not put the entire question in the title. A proper ticket should be detailing the issues you are facing, what you already have tried to resolve them, what you observed after trying on your own and what you need help with.

Furthermore, you mention that you would like to switch between two UART instances on the nRF52832. I am not exactly sure what you mean to ask since your ticket contains no additional information, but either way please be advised that the nRF52832 only has a single UART instance.

Best regards,
Karl

RE: can I use two uart in nrf52832 one at a Time software-controlled UARTS? witch between UART1 and UART2 in software control is it possble?

ketiljo — Tue, 08 Jun 2021 11:21:50 GMT

Can you please re-fomulate your question and don't write in the subject?