is it possible to initialize two UART in nrf52832?

[0_velan_1]

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?

[Karl Ylvisaker]

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

[0_velan_1]

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?

[Karl Ylvisaker]

0_velan_1 said:

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

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

[0_velan_1]

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

[Karl Ylvisaker]

Hello,

0_velan_1 said:

while running getting run time error 

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