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CC2541: hal_uart usage

Part Number: CC2541

Hello!

I'm trying to use hal_uart to send data from CC2541, but get no response or garbage.

Pin connect: P1_4, P1_5 - RX, TX

Defines:

NPI_UART_PORT                  HAL_UART_PORT_1

NPI_UART_FC                    FALSE

NPI_UART_BR                    HAL_UART_BR_115200

Tried examples: BLE_Bridge, HostTestRelease.

1) What I'm doing wrong?

2) There can I find pin definition for HAL_UART_PORT_0 and HAL_UART_PORT_1? Can't find in datasheet, user guide, dev. guide...

3) There can I find manual for hal_uart and other hal functions?