Dear Members,
I saw this example,
I can not find this example on SDK 17,
How can I use UARTE0 and UARTE1 on separate port ? one is for debugging via USB and the other one for communicating with GPS UART ?
Any suggestions ?
Thanks
Dear Members,
I saw this example,
I can not find this example on SDK 17,
How can I use UARTE0 and UARTE1 on separate port ? one is for debugging via USB and the other one for communicating with GPS UART ?
Any suggestions ?
Thanks
Hi,
The Serial port library has been deprecated and has been replaced with the libUARTE module. We have a libUARTE example in the SDK that only uses one instance but clearly shows how to define an instance and initialize it. It should be possible to repeat this for a second UARTE instance. If you want to use two UARTE instances then you have to enable both instances in the config file and resources that the module is dependent on ( Timer and PPI) . Next you have to define an instance of the module and initialize it in the project.
regards
Jared
Hi Jared,
Thanks for the reply,
I will learn this libUARTE example and keep posted,
Is libUARTE in the example working by DMA or interrupt ?
This example is not working with Softdevice, isn't it ?
Cheers
Hi Jared,
In my my mind,
I'm going to use
#define RX_PIN_NUMBER 8
#define TX_PIN_NUMBER 6
with
NRF_LOG_INFO() function then
#define SER_APP_RX_PIN NRF_GPIO_PIN_MAP(1,13) // UART RX pin number.
#define SER_APP_TX_PIN NRF_GPIO_PIN_MAP(1,14)
with
void uart_event_handler calling this function :
nrf_libuarte_drv_rx_start at nrf_libuarte_drv.h, how can I start and stop ?
Thanks
Hi,
The logging in the example is done over RTT as the UARTE is already in use in the application. The example is a loopback which means that it sends the data back after it has received it.
A NRF_LIBUARTE_ASYNC_EVT_RX_DATA event is generated each time data is received, while NRF_LIBUARTE_ASYNC_EVT_TX_DONE is generated each time data has been successfully sent. nrf_libuarte_async_tx() is used for transmitting data.
The libUARTE module is based on the UARTE peripheral which uses EasyDMA. The example does not use the Softdevice. You can merge it with a SD example such as ble_app_beacon if you also want to use the Softdevice.
regards
Jared
How can I " ... enable both instances in the config file and resources that the module is dependent on " ?
?
like this :
nrf_libuarte_async_config_t nrf_libuarte_async_config1 = {
.tx_pin = SER_APP_TX_PIN,
.rx_pin = SER_APP_RX_PIN,
.baudrate = NRF_UARTE_BAUDRATE_115200,
.parity = NRF_UARTE_PARITY_EXCLUDED,
.hwfc = NRF_UARTE_HWFC_DISABLED,
.timeout_us = 100,
.int_prio = APP_IRQ_PRIORITY_LOW
};
then on sdk_config.h ?
Thanks