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Send data received on ble nus to SPI

I merged ble_app_uart with spi peripheral example, normal working like bluetooth connectivity, spi sending and receiving is working fine, but i want to transmit data received on ble_nus to SPI, instead of uart. i tried this line just after err_code = app_uart_put(p_evt->params.rx_data.p_data[i]);

nrf_drv_spi_transfer(&spi, p_evt->params.rx_data.p_data[i], 10, m_rx_buf, 10);

But no luck, i am not able to receive data on spi.

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