nrf52832 esb 收发一体代码

/** * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form, except as embedded into a Nordic * Semiconductor ASA integrated circuit in a product or a software update for * such product, must reproduce the above copyright notice, this list of * conditions and the following disclaimer in the documentation and/or other * materials provided with the distribution. * * 3. Neither the name of Nordic Semiconductor ASA nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * 4. This software, with or without modification, must only be used with a * Nordic Semiconductor ASA integrated circuit. * * 5. Any software provided in binary form under this license must not be reverse * engineered, decompiled, modified and/or disassembled. * * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #include "nrf_error.h" #include "nrf_esb.h" #include "nrf_esb_error_codes.h" #include "nrf_gpio.h" #include <string.h> #include <stddef.h> #include "sdk_common.h" #include "sdk_macros.h" #include "app_util.h" #include "nrf_log.h" #include "nrf_delay.h" #define BIT_MASK_UINT_8(x) (0xFF >> (8 - (x))) #define NRF_ESB_PIPE_COUNT 8 // Constant parameters #define RX_WAIT_FOR_ACK_TIMEOUT_US_2MBPS (48) /**< 2 Mb RX wait for acknowledgment time-out value. Smallest reliable value - 43. */ #define RX_WAIT_FOR_ACK_TIMEOUT_US_1MBPS (64) /**< 1 Mb RX wait for acknowledgment time-out value. Smallest reliable value - 59. */ #define RX_WAIT_FOR_ACK_TIMEOUT_US_250KBPS (250) /**< 250 Kb RX wait for acknowledgment time-out value. */ #define RX_WAIT_FOR_ACK_TIMEOUT_US_1MBPS_BLE (73) /**< 1 Mb RX wait for acknowledgment time-out (combined with BLE). Smallest reliable value - 68.*/ // Interrupt flags #define NRF_ESB_INT_TX_SUCCESS_MSK 0x01 /**< Interrupt mask value for TX success. */ #define NRF_ESB_INT_TX_FAILED_MSK 0x02 /**< Interrupt mask value for TX failure. */ #define NRF_ESB_INT_RX_DATA_RECEIVED_MSK 0x04 /**< Interrupt mask value for RX_DR. */ #define NRF_ESB_PID_RESET_VALUE 0xFF /**< Invalid PID value which is guaranteed to not collide with any valid PID value. */ #define NRF_ESB_PID_MAX 3 /**< Maximum value for PID. */ #define NRF_ESB_CRC_RESET_VALUE 0xFFFF /**< CRC reset value. */ // Internal Enhanced ShockBurst module state. typedef enum { NRF_ESB_STATE_IDLE, /**< Module idle. */ NRF_ESB_STATE_PTX_TX, /**< Module transmitting without acknowledgment. */ NRF_ESB_STATE_PTX_TX_ACK, /**< Module transmitting with acknowledgment. */ NRF_ESB_STATE_PTX_RX_ACK, /**< Module transmitting with acknowledgment and reception of payload with the acknowledgment response. */ NRF_ESB_STATE_PRX, /**< Module receiving packets without acknowledgment. */ NRF_ESB_STATE_PRX_SEND_ACK, /**< Module transmitting acknowledgment in RX mode. */ } nrf_esb_mainstate_t; #define DISABLE_RF_IRQ() NVIC_DisableIRQ(RADIO_IRQn) #define ENABLE_RF_IRQ() NVIC_EnableIRQ(RADIO_IRQn) #define _RADIO_SHORTS_COMMON ( RADIO_SHORTS_READY_START_Msk | RADIO_SHORTS_END_DISABLE_Msk | \ RADIO_SHORTS_ADDRESS_RSSISTART_Msk | RADIO_SHORTS_DISABLED_RSSISTOP_Msk ) #define VERIFY_PAYLOAD_LENGTH(p) \ do \ { \ if (p->length == 0 || \ p->length > NRF_ESB_MAX_PAYLOAD_LENGTH || \ (m_config_local.protocol == NRF_ESB_PROTOCOL_ESB && \ p->length > m_config_local.payload_length)) \ { \ return NRF_ERROR_INVALID_LENGTH; \ } \ }while (0) /* @brief Structure holding pipe info PID and CRC and acknowledgment payload. */ typedef struct { uint16_t crc; /**< CRC value of the last received packet (Used to detect retransmits). */ uint8_t pid; /**< Packet ID of the last received packet (Used to detect retransmits). */ bool ack_payload; /**< Flag indicating the state of the transmission of acknowledgment payloads. */ } pipe_info_t; /* @brief First-in, first-out queue of payloads to be transmitted. */ typedef struct { nrf_esb_payload_t * p_payload[NRF_ESB_TX_FIFO_SIZE]; /**< Pointer to the actual queue. */ uint32_t entry_point; /**< Current start of queue. */ uint32_t exit_point; /**< Current end of queue. */ uint32_t count; /**< Current number of elements in the queue. */ } nrf_esb_payload_tx_fifo_t; /* @brief First-in, first-out queue of received payloads. */ typedef struct { nrf_esb_payload_t * p_payload[NRF_ESB_RX_FIFO_SIZE]; /**< Pointer to the actual queue. */ uint32_t entry_point; /**< Current start of queue. */ uint32_t exit_point; /**< Current end of queue. */ uint32_t count; /**< Current number of elements in the queue. */ } nrf_esb_payload_rx_fifo_t; /**@brief Enhanced ShockBurst address. * * Enhanced ShockBurst addresses consist of a base address and a prefix * that is unique for each pipe. See @ref esb_addressing in the ESB user * guide for more information. */ typedef struct { uint8_t base_addr_p0[4]; /**< Base address for pipe 0 encoded in big endian. */ uint8_t base_addr_p1[4]; /**< Base address for pipe 1-7 encoded in big endian. */ uint8_t pipe_prefixes[8]; /**< Address prefix for pipe 0 to 7. */ uint8_t num_pipes; /**< Number of pipes available. */ uint8_t addr_length; /**< Length of the address including the prefix. */ uint8_t rx_pipes_enabled; /**< Bitfield for enabled pipes. */ uint8_t rf_channel; /**< Channel to use (must be between 0 and 100). */ } nrf_esb_address_t; // Module state static bool m_esb_initialized = false; static nrf_esb_mainstate_t m_nrf_esb_mainstate