290 lines
11 KiB
C
290 lines
11 KiB
C
/*******************************************************************************
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* @note Copyright (C) 2017 Shanghai Panchip Microelectronics Co., Ltd.
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* All rights reserved.
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*
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* @file drv_xn297l.c
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* @brief XN297L RF驱动
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*
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* @history - V1.0, 2017-03-06, xiaoguolin, first implementation.
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*******************************************************************************/
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#include "lib_driver_xn297l.h"
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/******************************************************************************/
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//void rf_write_reg(uint8_t reg,uint8_t data);
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//rf写寄存器函数
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//input:uint8_t reg，寄存器地址；uint8_t data:需要写入寄存器的值
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//output:无
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/******************************************************************************/
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void xn297l_write_reg(uint8_t reg,uint8_t data)
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{
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rfspi_cs(0); //使能片选
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rfspi_rwc(reg); //写入的寄存器的地址
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rfspi_rwc(data); //写入的寄存器的值
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rfspi_cs(1); //禁能片选
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}
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/******************************************************************************/
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//uint8_t rf_read_reg(uint8_t reg);
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//rf读寄存器函数
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//input:uint8_t reg，需要读取的寄存器
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//output:寄存器的值
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/******************************************************************************/
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uint8_t xn297l_read_reg(uint8_t reg)
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{
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uint8_t tmp;
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rfspi_cs(0); //使能片选
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rfspi_rwc(reg); //写入的寄存器的地址
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tmp = rfspi_rwc(0x00); //读取寄存器的值
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rfspi_cs(1); //禁能片选
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return tmp;
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}
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/******************************************************************************/
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//void rf_write_buf(uint8_t reg,uint8_t *pbuf,uint8_t length);
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//rf写缓冲函数
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//input:uint8_t reg，写入寄存器的地址;uint8_t *pbuf，写入数组的首地址;uint8_t length，写入数据的长度
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//output:无
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/******************************************************************************/
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void xn297l_write_buf(uint8_t reg,uint8_t *pbuf,uint8_t length)
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{
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uint8_t i;
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rfspi_cs(0); //使能片选
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rfspi_rwc(reg);
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for(i = 0;i < length; i++)
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{
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rfspi_rwc(pbuf[i]); //写入数据
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}
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rfspi_cs(1); //禁能片选
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}
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/******************************************************************************/
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//void rf_read_buf(uint8_t reg,uint8_t *pbuf,uint8_t length);
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//rf读缓冲函数
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//input:uint8_t reg，读出寄存器的地址;uint8_t *pbuf，读出缓冲数组的首地址;uint8_t length，读出数据的长度
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//output:无
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/******************************************************************************/
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void xn297l_read_buf(uint8_t reg, uint8_t *pbuf, uint8_t length)
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{
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uint8_t i;
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rfspi_cs(0); //使能片选
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rfspi_rwc(reg);
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for(i = 0; i < length; i++)
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{
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pbuf[i] = rfspi_rwc(0x00); //读取数据
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}
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rfspi_cs(1); //禁能片选
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}
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/******************************************************************************/
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//void rf_tx_mode(void);
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//XN297L设置为发送模式
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//input:无
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//output:无
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/******************************************************************************/
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void xn297l_tx_mode(void)
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{
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// uint8_t rf_cal_data[] = {0xF6,0x37,0x5D};
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// rf_write_buf(W_REGISTER + RF_CAL,rf_cal_data, sizeof(rf_cal_data));//设置RF_CAL
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xn297l_write_reg(W_REGISTER + CONFIG,0x8E); // rf设置为发送模式
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clear_CE();
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delay_us(20);
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}
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/******************************************************************************/
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//void rf_rx_mode(void);
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//XN297L设置为接收模式
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//input:无
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//output:无
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/******************************************************************************/
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void xn297l_rx_mode(void)
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{
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// uint8_t rf_cal_data[] = {0x06,0x37,0x5D};
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// rf_write_buf(W_REGISTER + RF_CAL,rf_cal_data, sizeof(rf_cal_data));//设置RF_CAL
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xn297l_write_reg(W_REGISTER + CONFIG,0X8F); // rf设置为接收模式
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set_CE();
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//delay_ms(1);
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}
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/******************************************************************************/
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//void rf_get_status(void);
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//XN297L获取状态信息
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//input:无
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//output:状态寄存器的值
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/******************************************************************************/
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uint8_t xn297l_get_status(void)
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{
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return xn297l_read_reg(RF_STATUS)&0x70; //读取状态值
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}
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/******************************************************************************/
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//void rf_clear_status(void);
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//XN297L清除状态信息
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//input:无
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//output:无
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/******************************************************************************/
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void xn297l_clear_status(void)
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{
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xn297l_write_reg(W_REGISTER + RF_STATUS,0x70);
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}
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/******************************************************************************/
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//void rf_clear_FIFO(void);
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//XN297L清除缓冲
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//input:无
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//output:无
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/******************************************************************************/
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void xn297l_clear_fifo(void)
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{
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xn297l_write_reg(FLUSH_TX, 0); //清除发送缓冲
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xn297l_write_reg(FLUSH_RX, 0); //清除接收缓冲
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}
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/******************************************************************************/
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//void rf_set_channel(uint8_t channel);
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//XN297L设置通信信道
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//input:uint8_t channel，设置的通信信道
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//output:无
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/******************************************************************************/
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void xn297l_set_channel(uint8_t channel)
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{
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// current_channel = channel;
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xn297l_write_reg(W_REGISTER + RF_CH, channel);
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}
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/******************************************************************************/
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//void rf_set_addr(uint8_t reg,uint8_t *rf_addr_array);
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//XN297L设置通信地址
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//input:uint8_t reg,需要设置的寄存器，uint8_t *rf_addr_array，设置的地址
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//output:无
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/******************************************************************************/
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void xn297l_set_addr(uint8_t reg,uint8_t *rf_addr_array,uint8_t addr_len)
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{
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xn297l_write_buf(W_REGISTER + reg,rf_addr_array, addr_len);//设置地址
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}
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/******************************************************************************/
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//uint8_t rf_tx_data(uint8_t *data, uint8_t length);
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//XN297L发送数据
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//input:uint8_t *data，发送数据数组的首地址；uint8_t length发送数据的长度
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//output:发送状态值
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/******************************************************************************/
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void xn297l_tx_data(uint8_t *data, uint8_t length)
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{
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set_CE();
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delay_us(100);
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xn297l_write_buf(W_TX_PAYLOAD,data,length); //发送数据
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while(IRQ_STATUS);
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xn297l_clear_status(); //清除状态
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xn297l_write_reg(FLUSH_TX,0); //清除发送缓冲
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clear_CE();
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}
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/******************************************************************************/
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//uint8_t rf_rx_data(uint8_t *data,uint8_t length);
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//rf接收函数
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//input:uint8_t *data,接收数据数组首地址；uint8_t length:接收数据的长度
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//output:接收正确与否标志
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/******************************************************************************/
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uint8_t xn297l_rx_data(uint8_t *data,uint8_t length)
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{
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if(IRQ_STATUS)
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{
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return 0; //等待接收
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}
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xn297l_read_buf(R_RX_PAYLOAD,data,length); //接收数据
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xn297l_write_reg(FLUSH_RX,0); //清除接收缓冲
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xn297l_clear_status(); //清除状态
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return 1;
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}
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/******************************************************************************/
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//void rf_init(void);
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//rf初始化函数，执行一些初始化操作
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//input:无
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//output:无
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/******************************************************************************/
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void rf_init(void)
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{
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uint8_t addr[] = {0x23,0x23,0x23};
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rfspi_init();
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xn297l_init(addr,3,20,13,XN297L_RF_POWER_P_5|XN297L_RF_DATA_RATE_1M);
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xn297l_rx_mode();
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}
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void xn297l_init(uint8_t* addr,uint8_t addr_len,uint8_t chn,uint8_t payload,uint8_t rate_power)
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{
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#if ((DATA_RATE==DR_1M) || (DATA_RATE==DR_2M))
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uint8_t BB_cal_data[] = {0x12,0xED,0x67,0x9C,0x46};
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uint8_t rf_cal_data[] = {0xF6,0x3F,0x5D};
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uint8_t rf_cal2_data[] = {0x45,0x21,0xEF,0x2C,0x5A,0x40};
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uint8_t Dem_cal_data[] = {0x01};
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uint8_t Dem_cal2_data[] = {0x0B,0xDF,0x02};
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#elif (DATA_RATE==DR_250K)
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uint8_t BB_cal_data[] = {0x12,0xEC,0x6F,0xA1,0x46};
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uint8_t rf_cal_data[] = {0xF6,0x3F,0x5D};
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uint8_t rf_cal2_data[] = {0xD5,0x21,0xEB,0x2C,0x5A,0x40};
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uint8_t Dem_cal_data[] = {0x1F};
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uint8_t Dem_cal2_data[] = {0x0B,0xDF,0x02};
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#endif
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xn297l_write_reg(RST_FSPI,0x5A); //芯片软复位
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xn297l_write_reg(RST_FSPI,0XA5);
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delay_ms(1);
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xn297l_clear_fifo();//清除缓冲
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xn297l_clear_status(); //清除状态寄存器
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if(payload < 33)
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{
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#if(CE_TYPE==CE_HARDWARE_MODE)
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xn297l_write_reg(W_REGISTER +FEATURE, 0x00); //32字节数据，使能硬件CE
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#else
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xn297l_write_reg(W_REGISTER +FEATURE, 0x20); //32字节数据，使能软件CE
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#endif
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}
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else
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{
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#if(CE_TYPE==CE_HARDWARE_MODE)
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xn297l_write_reg(W_REGISTER +FEATURE, 0x18); //64字节数据，使能硬件CE
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#else
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xn297l_write_reg(W_REGISTER +FEATURE, 0x38); //64字节数据，使能软件CE
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#endif
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}
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clear_CE();
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xn297l_write_reg(W_REGISTER + EN_RXADDR,0x03); //使能接收通道0通道1
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xn297l_write_reg(W_REGISTER + SETUP_AW,addr_len-2); //[1-3] = [3-5]
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xn297l_write_reg(W_REGISTER + RF_CH,chn); //设置接收信道
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xn297l_write_reg(W_REGISTER + RX_PW_P0,payload); //设置接收数据宽度，即Payload宽度
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xn297l_write_reg(W_REGISTER + RX_PW_P1,payload); //设置接收数据宽度，即Payload宽度
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xn297l_write_buf(W_REGISTER + TX_ADDR,addr, addr_len); //设置发送地址
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xn297l_write_buf(W_REGISTER + RX_ADDR_P0,addr, addr_len); //设置接收地址
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xn297l_write_buf(W_REGISTER + BB_CAL,BB_cal_data, sizeof(BB_cal_data)); //设置BB_CAL
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xn297l_write_buf(W_REGISTER + RF_CAL2,rf_cal2_data, sizeof(rf_cal2_data)); //设置RF_CAL2
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xn297l_write_buf(W_REGISTER + DEM_CAL,Dem_cal_data, sizeof(Dem_cal_data)); //设置DEM_CAL
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xn297l_write_buf(W_REGISTER + RF_CAL,rf_cal_data, sizeof(rf_cal_data)); //设置RF_CAL
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xn297l_write_buf(W_REGISTER + DEM_CAL2,Dem_cal2_data,sizeof(Dem_cal2_data));//设置DEM_CAL2
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xn297l_write_reg(W_REGISTER + DYNPD, 0x00); //禁止动态Payload
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xn297l_write_reg(W_REGISTER + RF_SETUP,rate_power); //设置发射功率和速率
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#if(TRANSMIT_TYPE == TRANS_ENHANCE_MODE) //设置为增强模式
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xn297l_write_reg(W_REGISTER + SETUP_RETR,0x03); //使能三次重发
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xn297l_write_reg(W_REGISTER + EN_AA, 0x01); //使能自动应答
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#elif(TRANSMIT_TYPE == TRANS_NORMAL_MODE) //设置为普通模式
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xn297l_write_reg(W_REGISTER + SETUP_RETR,0x00); //禁止重发
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xn297l_write_reg(W_REGISTER + EN_AA, 0x00); //禁止自动应答
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#endif
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}
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/******************************************************************************/
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//单载波模式
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/******************************************************************************/
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void RF_Carrier( uint8_t ucChannel_Set)
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{
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uint8_t BB_cal_data[] = {0x0A,0x6D,0x67,0x9C,0x46};
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uint8_t RF_cal_data[] = {0xF6,0x37,0x5D};
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uint8_t RF_cal2_data[] = {0x45,0x21,0xEF,0xAC,0x5A,0x50};
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uint8_t Dem_cal_data[] = {0xE1};
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uint8_t Dem_cal2_data[] = {0x0B,0xDF,0x02};
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xn297l_write_reg(W_REGISTER + RF_CH,ucChannel_Set);
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xn297l_write_reg(W_REGISTER + RF_SETUP, 0x3F); //13dbm
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xn297l_write_buf(W_REGISTER + BB_CAL, BB_cal_data, sizeof(BB_cal_data));
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xn297l_write_buf(W_REGISTER + RF_CAL2, RF_cal2_data, sizeof(RF_cal2_data));
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xn297l_write_buf(W_REGISTER + DEM_CAL, Dem_cal_data, sizeof(Dem_cal_data));
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xn297l_write_buf(W_REGISTER + RF_CAL, RF_cal_data, sizeof(RF_cal_data));
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xn297l_write_buf(W_REGISTER + DEM_CAL2, Dem_cal2_data,sizeof(Dem_cal2_data));
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}
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