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5 years, 6 months ago.
Somebody managed to use both UARTs in nrf52840?
I'm going to buy nrf52840 becouse it has 2*UART, but before I want to know is it possible to use both UARTs with MBED. I found last year question about it https://os.mbed.com/questions/78934/How-to-use-both-UART-in-nrf52840-dev-Kit/, but there are no exact answer. As I understand, this code
Serial uart(P0_0, P0_1); Serial uart2(P0_3, P0_2)
not working...
1 Answer
5 years, 6 months ago.
Hi Eugene,
It looks like a user was able to use 2 UART's on an nRF51 as shown here: https://os.mbed.com/users/kenjiArai/code/BLE_UART_pin_assign/file/f3511dc0569f/main.cpp/
I also took a look into the Mbed OS files for the NRF52840 and the following README mentions how you can utilize the UARTE instances on the NRF52840 with a custom configuration table: https://github.com/ARMmbed/mbed-os/tree/master/targets/TARGET_NORDIC/TARGET_NRF5x#customization-1
Place the following code in a file similar to the PeripheralPinsDefault.c file:
const PinMapI2C PinMap_UART[] = {
{p0, p1, 1},
{p3, p2, 0},
{NC, NC, NC}
};
Please let me know if you have any questions!
- Jenny, team Mbed
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