【外设移植】Ai-M6x + SI4432无线模块

[i=s] 本帖最后由 lazy 于 2024-11-7 18:45 编辑 [/i]<br /> <br /> ## 闲聊 没错SI4432无线模块就是它。淘宝安信可买的，看到说送天线。等了三天到件以后来就发了三个SI4432无线模块。没有发天线。然后找客服，顺道又买了一个Ai-WB2-32s开发板。又等了三天收到了天线和开发板。  "企业微信截图_20241107180048.png") 搞了很久的代码，然后发现开发环境和代码都不是很好调试。 索性换了Ai-M61-32S开发板。稍微还熟悉点。 安信可的开发板配安信可模块，才是丰富生态😄 这个资料真的是太少了，SPI教程也缺失ing。完全一脸懵逼的调试。 硬件就三样 开发板、线、模块 哪儿出问题了都不知道，波形有没有，有没有发送数据出去，模块有没有响应肉眼看不出来。 然后为了测试打印了一堆日志，为了看引脚状态。 ``` [F][] RF4432_ReadReg addr: 0x01 [F][] SPI_Write txdata: 0x01 [F][] SPI_Write RF4432_SDI_0 [F][] SPI_Write RF4432_SDI_0 [F][] SPI_Write RF4432_SDI_0 [F][] SPI_Write RF4432_SDI_0 [F][] SPI_Write RF4432_SDI_0 [F][] SPI_Write RF4432_SDI_0 [F][] SPI_Write RF4432_SDI_0 [F][] SPI_Write RF4432_SDI_1 [F][] SPI_Read RF4432_SDO_IN 0 [F][] SPI_Read RF4432_SDO_IN 0 [F][] SPI_Read RF4432_SDO_IN 0 [F][] SPI_Read RF4432_SDO_IN 0 [F][] SPI_Read RF4432_SDO_IN 0 [F][] SPI_Read RF4432_SDO_IN 1 [F][] SPI_Read RF4432_SDO_IN 1 [F][] SPI_Read RF4432_SDO_IN 0 [F][] SPI_Read rxdata: 0x06 [F][] ver: 0x06 ``` 经过四天的掉头发终于是调通了SI4432模块，下面分享下遇到的问题和当前效果。最终是想做一个串口通讯的语音提示门铃。模块调通了先把功能代码放出来给需要的朋友。后续逐渐完善功能。 ## 问题 1、SI4432 间距很小，焊接一定注意不要连锡。 产生影响，获取数据不准确。 测试方法：万用表打到二极管档位，然后测量相邻两个引脚时候导通。如果导通了就连锡了。（断电操作） 检查模块电压是否正常。 测试方法：万用表打到20V电压档位，黑表笔接GND。分别测试VCC、SDO、SDI、SCLK、nSEL、nIRQ、SDN 默认情况下除SCLK与SDN为0V外，其他接口都是3.3v如果电压差的很多就要检查是否连锡了。 2、SDN 引脚是需要拉低 产生影响，读出来的数据都是ff或者不准确乱跳 3、Ai-M61-32 MISO 引脚初始化不要悬空 产生影响，读数不正确，以为读到数据了，结果发现不带设备读针脚状态也是有值的。 输出高低电平的引脚直接设置GPIO_OUTPUT 读取高低电平的引脚直接设置GPIO_INPUT 4、模块是3.3V供电的，最好不要用5V 产生影响，可能导致永远也读不到数据，就不告诉你为什么。 ## 目标 拿到Device Version：06  其他完整内容看下数据手册吧，内容比较多。 ## 接线方式 | Ai-M6x | SI4432 | SI4432引脚定义 | | ------ | ------ | -------------------------- | | 3v3 | VCC | 3.3v电源 | | IO18 | SDO | 串行数据输出 | | IO19 | SDI | 串行数据输入 | | IO13 | SCLK | 串行时钟输入 | | IO12 | nSEL | 串行接口选择输入 | | IO31 | nIRQ | 中断输出引脚 | | IO30 | SDN | 关闭输入引脚[启用停用设备] | | IO27 | GPIO0 | 模块发射控制引脚 | | GND | GND | 接地 | ## SI4432无线模块 > SI4432无线模块由安信可科技设计开发。该模块采用Silicon Labs最新版本的高集成度的无线ISM收发芯片SI4432。频率范围为410~525MHz，极高的接收灵敏（-117dBm）和发射功率（+20dBm），大大提高了穿透能力和传输范围，在+20dBm输出功率时开阔无障碍的通信距离在1000米以上。用户不需要了解无线电的相关知识，就可以使用本模块轻易的开发出性能稳定可靠的无线相关产品。 > > BS01 无线模块由安信可科技设计开发,该模块是一款低功耗、小尺寸、低成本的 Sub-1G 射频模块；采用 Silicon Laboratories公司的 Si4463 芯片是高性能的低电流收发器，其覆盖了119MHz至1050MHz的Sub-1GHz频段。还是EZRadioPRO系列的一部分，该系列包含覆盖各种应用的完整发射器、接收器和收发器产品线。所有器件都具有接触的的灵敏度-126dBm，同时实现了极低的活动和休眠电流消耗。 [模块特性]([https://docs.ai-thinker.com/si4432%E6%A8%A1%E5%9D%97%E7%89%B9%E6%80%A7](https://docs.ai-thinker.com/si4432%E6%A8%A1%E5%9D%97%E7%89%B9%E6%80%A7) "si4432模块特性") [开发资料]([https://docs.ai-thinker.com/si4432%E5%BC%80%E5%8F%91%E8%B5%84%E6%96%99](https://docs.ai-thinker.com/si4432%E5%BC%80%E5%8F%91%E8%B5%84%E6%96%99) "si4432开发资料") [规格书]([https://docs.ai-thinker.com/si4432%E8%A7%84%E6%A0%BC%E4%B9%A6](https://docs.ai-thinker.com/si4432%E8%A7%84%E6%A0%BC%E4%B9%A6) "si4432规格书") [硬件资料]([https://docs.ai-thinker.com/si4432%E7%A1%AC%E4%BB%B6%E8%B5%84%E6%96%99](https://docs.ai-thinker.com/si4432%E7%A1%AC%E4%BB%B6%E8%B5%84%E6%96%99) "si4432硬件资料")  接口定义  详细描述  SI4432 采用的是SPI通讯方式，目前使用官方提供的spi类库没有调通。用软模拟的方式实现SPI通信。  SI4432无线模块串行接口时序参考。 ## 代码 si4432.h ``` #ifndef _SI4432_H_ #define _SI4432_H_ #include "bflb_mtimer.h" #include "board.h" #include "bflb_gpio.h" #include "log.h" #include <FreeRTOS.h> #include <queue.h> #include <timers.h> #include <task.h> // 收发模式切换控制端 #define PAC_PIN GPIO_PIN_27 // SDN #define SDN_PIN GPIO_PIN_30 // nIrq #define IRQ_PIN GPIO_PIN_31 // 片选 #define SPI_CS_PIN GPIO_PIN_12 // 时钟 #define SPI_CLK_PIN GPIO_PIN_13 // 主机输入从机输出 #define SPI_MISO_PIN GPIO_PIN_18 // 从机输入主机输出 #define SPI_MOSI_PIN GPIO_PIN_19 //-----------------------------------------------------RF4432配置口定义--------------------------------------------- #define RF4432_PAC_1 bflb_gpio_set(gpio, PAC_PIN) //收发模式切换控制端 #define RF4432_PAC_0 bflb_gpio_reset(gpio, PAC_PIN) //#define RF4432_SDO_1 (P2OUT |= BIT3) //SPI数据输出 //#define RF4432_SDO_0 (P2OUT &= ~BIT3) #define RF4432_SDO_IN bflb_gpio_read(gpio, SPI_MISO_PIN) #define RF4432_SDI_1 bflb_gpio_set(gpio, SPI_MOSI_PIN)//SPI数据输入 #define RF4432_SDI_0 bflb_gpio_reset(gpio, SPI_MOSI_PIN) #define RF4432_SCLK_1 bflb_gpio_set(gpio, SPI_CLK_PIN)//SPI时钟输入端口 #define RF4432_SCLK_0 bflb_gpio_reset(gpio, SPI_CLK_PIN) #define RF4432_SEL_1 bflb_gpio_set(gpio, SPI_CS_PIN) //SPI片选 #define RF4432_SEL_0 bflb_gpio_reset(gpio, SPI_CS_PIN) #define RF4432_SDN_1 bflb_gpio_set(gpio, SDN_PIN) //SDN=1时关闭芯片工作 ,SDN=0时芯片正常工作 #define RF4432_SDN_0 bflb_gpio_reset(gpio, SDN_PIN) //#define RF4432_IRQ_1 (P2OUT |= BIT0) //SI4432工作状态指示端口 //#define RF4432_IRQ_0 (P2OUT &= ~BIT0) #define RF4432_IRQ_IN bflb_gpio_read(gpio, IRQ_PIN) //------------------------------------------------------------------------------------------------------------------ //#define RF4432_IO0_1 (P1OUT |= BIT5) //IO-0可以不用 //#define RF4432_IO0_0 (P1OUT &= ~BIT5) //#define RF4432_IO1_1 (P1OUT |= BIT6) //IO-1可以不用 //#define RF4432_IO1_0 (P1OUT &= ~BIT6) //#define RF4432_IO2_1 (P1OUT |= BIT4) //IO-2可以不用 //#define RF4432_IO2_0 (P1OUT &= ~BIT4) //-------------------------------------------射频芯片相关定义-------------------------------- #define RF4432_TxRxBuf_Len 32 //定义RF4432数据包长度 static uint8_t RF4432_TxRxBuf[RF4432_TxRxBuf_Len]= { 0x01,0x02,0x03,0x4,0x05,0x06,0x07,0x08, 0x09,0x10,0x11,0x12,0x13,0x14,0x15,0x16, 0x17,0x18,0x19,0x20,0x21,0x22,0x23,0x24, 0x25,0x26,0x27,0x28,0x29,0x30,0x31,0x32, }; //---------------------RF4432 配置寄存器地址--------------------// #define DEVICE_TYPE 0x00 //器件类型码 #define DEVICE_VERSION 0x01 //版本号 #define DEVICE_STATUS 0x02 //器件状态 #define INTERRUPT_STATUS_1 0x03 //中断状态1 #define INTERRUPT_STATUS_2 0x04 //中断状态2 #define INTERRUPT_ENABLE_1 0x05 //中断使能1 #define INTERRUPT_ENABLE_2 0x06 //中断使能2 #define OPERATING_FUNCTION_CONTROL_1 0x07 //工作模式和功能控制1 #define OPERATING_FUNCTION_CONTROL_2 0x08 //工作模式和功能控制2 #define CRYSTAL_OSCILLATOR_LOAD_CAPACITANCE 0x09 //晶振负载电容设置 #define MICROCONTROLLER_OUTPUT_CLOCK 0x0A //微控制器输出时钟 #define GPIO0_CONFIGURATION 0x0B //GPIO0功能设置寄存器见英文文档第105页 #define GPIO1_CONFIGURATION 0x0C #define GPIO2_CONFIGURATION 0x0D #define IO_PORT_CONFIGURATION 0x0E //IO端口配置 #define ADC_CONFIGURATION 0x0F //ADC配置 #define ADC_SENSOR_AMPLIFIER_OFFSET 0x10 //ADC传感放大器偏差 #define ADC_VALUE 0x11 //ADC值 #define TEMPERATURE_SENSOR_CONTROL 0x12 //温度传感器校准 #define TEMPERATURE_VALUE_OFFSET 0x13 //温度传感器值偏差 #define WAKE_UP_TIMER_PERIOD_1 0x14 //唤醒定时器时期1 #define WAKE_UP_TIMER_PERIOD_2 0x15 //唤醒定时器时期2 #define WAKE_UP_TIMER_PERIOD_3 0x16 //唤醒定时器时期3 #define WAKE_UP_TIMER_VALUE_1 0x17 //唤醒定时器值1 #define WAKE_UP_TIMER_VALUE_2 0x18 //唤醒定时器值2 #define LOW_DUTY_CYCLE_MODE_DURATION 0x19 //低任务周期模式持续时间 #define LOW_BATTERY_DETECTOR_THRESHOLD 0x1A //低压检测阈值寄存器 #define BATTERY_VOLTAGE_LEVEL 0x1B //电池电压级别 #define IF_FILTER_BANDWIDTH 0x1C //中频滤波器（IF）带宽寄存器 #define AFC_LOOP_GEARSHIFT_OVERRIDE 0x1D //AFC循环变速超速 #define AFC_TIMING_CONTROL 0x1E //AFC定时控制 #define CLOCK_RECOVERY_GEARSHIFT_OVERRIDE 0x1F //时钟恢复变速超速 #define CLOCK_RECOVERY_OVERSAMPLING_RATIO 0x20 //时钟恢复过抽样率 #define CLOCK_RECOVERY_OFFSET_2 0x21 //时钟恢复偏差 #define CLOCK_RECOVERY_OFFSET_1 0x22 #define CLOCK_RECOVERY_OFFSET_0 0x23 #define CLOCK_RECOVERY_TIMING_LOOP_GAIN_1 0x24 //时钟恢复定时循环增益 #define CLOCK_RECOVERY_TIMING_LOOP_GAIN_0 0x25 #define RECEIVED_SIGNAL_STRENGTH_INDICATOR 0x26 //接收信号强度指示器（RSSI） #define RSSI_THRESHOLD_FOR_CLEAR_CHANNEL_INDICATOR 0x27 //无干扰信道指示器接收信号强度指示（RSSI） #define ANTENNA_DIVERSITY_REGISTER_1 0x28 //天线分集 #define ANTENNA_DIVERSITY_REGISTER_2 0x29 #define DATA_ACCESS_CONTROL 0x30 //时间存储控制 #define EZMAC_STATUS 0x31 //EzMAC状态 #define HEADER_CONTROL_1 0x32 //Header 起始码设置 #define HEADER_CONTROL_2 0x33 #define PREAMBLE_LENGTH 0x34 //前导码长度 #define PREAMBLE_DETECTION_CONTROL 0x35 //前导码检测设置 #define SYNC_WORD_3 0x36 //同步字节 #define SYNC_WORD_2 0x37 #define SYNC_WORD_1 0x38 #define SYNC_WORD_0 0x39 #define TRANSMIT_HEADER_3 0x3A //发射帧头 #define TRANSMIT_HEADER_2 0x3B #define TRANSMIT_HEADER_1 0x3C #define TRANSMIT_HEADER_0 0x3D #define TRANSMIT_PACKET_LENGTH 0x3E //发送数据包长度，详细请看P125页 #define CHECK_HEADER_3 0x3F //检测帧头 #define CHECK_HEADER_2 0x40 #define CHECK_HEADER_1 0x41 #define CHECK_HEADER_0 0x42 #define HEADER_ENABLE_3 0x43 //帧头使能 #define HEADER_ENABLE_2 0x44 #define HEADER_ENABLE_1 0x45 #define HEADER_ENABLE_0 0x46 #define RECEIVED_HEADER_3 0x47 //接收到的帧头 #define RECEIVED_HEADER_2 0x48 #define RECEIVED_HEADER_1 0x49 #define RECEIVED_HEADER_0 0x4A #define RECEIVED_PACKET_LENGTH 0x4B //接收数据包长度，详细请看P134页 #define ANALOG_TEST_BUS 0x50 //模拟测试总线选择 #define DIGITAL_TEST_BUS_ENSCTEST_ 0x51 //数据测试总线选择 #define TX_RAMP_CONTROL 0x52 //发射斜率控制 #define PLL_TUNE_TIME 0x53 //锁相环（PPL）切换时间 #define CALIBRATION_CONTROL 0x55 //校正控制 #define MODEM_TEST 0x56 //调制控制 #define CHARGEPUMP_TEST 0x57 //充电泵测试 #define CHARGEPUMP_CURRENT_TRIMMING_OVERRIDE 0x58 //充电泵电流微调/超调 #define DIVIDER_CURRENT_TRIMMING 0x59 //电流分压器微调/Delta-Sigma测试 #define VCO_CURRENT_TRIMMING 0x5A //VCO电流微调 #define VCO_CALIBRATION_OVERRIDE 0x5B //VCO校正/超驰 #define SYNTHESIZER_TEST 0x5C //合成器测试 #define BLOCK_ENABLE_OVERRIDE_1 0x5D //模块使能超驰 #define BLOCK_ENABLE_OVERRIDE_2 0x5E #define BLOCK_ENABLE_OVERRIDE_3 0x5F #define CHANNEL_FILTER_COEFFICIENT_ADDRESS 0x60 //频道滤波器系数地址 #define CHANNEL_FILTER_COEFFICIENT_VALUE 0x61 //频道滤波器系数值 #define CRYSTAL_OSCILLATOR_CONTROL_TEST 0x62 //晶体振荡器/上电复位控制 #define RC_OSCILLATOR_COARSE_CALIBRATION_OVERRIDE 0x63 //RC振荡器粗略校正/超驰 #define RC_OSCILLATOR_FINE_CALIBRATION_OVERRIDE 0x64 //RC震荡器精细校正 #define LDO_CONTROL_OVERRIDE_ENSPOR 0x65 //LDO控制超驰 #define LDO_LEVEL_SETTING 0x66 //保留？LDO等级设置？ #define DELTASIGMA_ADC_TUNING_1 0x67 //Delta-sigma ADC调谐 #define DELTASIGMA_ADC_TUNING_2 0x68 #define AGC_OVERRIDE_1 0x69 //AGC过载 #define AGC_OVERRIDE_2 0x6A #define GFSK_FIR_FILTER_COEFFICIENT_ADDRESS 0x6B //GFSK FIR 滤波器系数地址 #define GFSK_FIR_FILTER_COEFFICIENT_VALUE 0x6C //GFSK FIR 滤波器系数值 #define TX_POWER 0x6D //发射功率设置,详细请见P153 #define TX_DATA_RATE_1 0x6E //数据发送波特率设置寄存器1 #define TX_DATA_RATE_0 0x6F //数据发送波特率设置寄存器0 #define MODULATION_MODE_CONTROL_1 0x70 //调制方式控制,详细请见P155 #define MODULATION_MODE_CONTROL_2 0x71 #define FREQUENCY_DEVIATION 0x72 //频率偏差 #define FREQUENCY_OFFSET_1 0x73 //频率偏移 #define FREQUENCY_OFFSET_2 0x74 //频道控制 #define FREQUENCY_BAND_SELECT 0x75 //频段选择,详细请见P157 #define NOMINAL_CARRIER_FREQUENCY_1 0x76 //基准载波频率 #define NOMINAL_CARRIER_FREQUENCY_0 0x77 #define FREQUENCY_HOPPING_CHANNEL_SELECT 0x79 //跳频频道选择,详细请见P158 #define FREQUENCY_HOPPING_STEP_SIZE 0x7A //跳频频道间隔 #define TX_FIFO_CONTROL_1 0x7C #define TX_FIFO_CONTROL_2 0x7D #define RX_FIFO_CONTROL 0x7E #define FIFO_ACCESS 0x7F //FIFO读写方式设置 //-----------------------------RF4432控制指令---------------------------// #define RR 0x00 #define WR 0x80 //------------------------------函数申明-----------------------------------// void si4432_task(void* arg); uint8_t SPI_Read(void); //SPI单字节读取函数 void SPI_Write(uint8_t txdata); //SPI单字节写入函数 uint8_t RF4432_ReadReg(uint8_t addr); //RF4432寄存器读取函数 void RF4432_WriteReg(uint8_t addr, uint8_t value); //RF4432寄存器写函数 void RF4432_WriteBurestReg(uint8_t addr,uint8_t *p,uint8_t count); void RF4432_ReadBurestReg(uint8_t addr,uint8_t *p,uint8_t count); void RF4432_Init(void); //RF4432射频芯片初始化函数 void RF4432_SetRxMode(void); //RF4432设置接收模式函数 uint8_t RF4432_RxPacket(void); //RF4432数据包接收函数 void RF4432_TxPacket(void); //RF4432数据包发送函数 void RF4432_IOSet(void); uint8_t get_ver(void); //----------------------------测试用例--------------------------------------// /* 发送端 void main() { RF4432_Init(); while(1) { RF4432_TxPacket(); } } 接收端 void main() { RF4432_Init(); RF4432_SetRxMode(); while(1) { if(RF4432_RxPacket()) { } } } */ #endif // !_SI4432__ ``` si4432.c ``` #include "si4432.h" static struct bflb_device_s *gpio; extern xQueueHandle rf_queue; uint8_t get_ver() { return RF4432_ReadReg(0x01); } void si4432_task(void* arg){ char* queue_buff = NULL; RF4432_Init(); uint8_t ver = get_ver(); LOG_F("ver: 0x%02x \r\n", ver); while (1) { queue_buff = pvPortMalloc(32); memset(queue_buff, 0, 32); xQueueReceive(rf_queue, queue_buff, portMAX_DELAY); printf("queue_buff: "); for (int i = 0; i < sizeof(queue_buff); i++) { printf("0x%02x ", queue_buff[i]); } printf("\r\n"); RF4432_TxPacket(); } } //-------------------------------------------------------SPI单字节读取函数-------------------------------------------------------- uint8_t SPI_Read(void) { uint8_t i, rxdata; rxdata = 0x00; for (i = 0; i < 8; i++) { rxdata = rxdata << 1; RF4432_SCLK_1; //RF4432_SDO_1; //P1DIR &= ~BIT3; if (RF4432_SDO_IN) //读取最高位，保存至最末尾，通过左移位完成整个字节 { LOG_F("SPI_Read RF4432_SDO_IN 1\r\n"); rxdata |= 0x01; } else { LOG_F("SPI_Read RF4432_SDO_IN 0\r\n"); rxdata &= ~0x01; } //P1DIR |= BIT3; bflb_mtimer_delay_us(20); RF4432_SCLK_0; bflb_mtimer_delay_us(20); } LOG_F("SPI_Read rxdata: 0x%02x\r\n", rxdata); return rxdata; } //---------------------------------------------------------SPI单字节写入函数---------------------------------------------- void SPI_Write(uint8_t txdata) { LOG_F("SPI_Write txdata: 0x%02x\r\n", txdata); uint8_t i; for (i = 0; i < 8; i++) { if (txdata & 0x80) //总是发送最高位 { LOG_F("SPI_Write RF4432_SDI_1\r\n"); RF4432_SDI_1; } else { LOG_F("SPI_Write RF4432_SDI_0\r\n"); RF4432_SDI_0; } RF4432_SCLK_1; bflb_mtimer_delay_us(20); txdata = txdata << 1; RF4432_SCLK_0; } } //---------------------------------------------------------RF4432寄存器读取函数----------------------------------------------------------- uint8_t RF4432_ReadReg(uint8_t addr) { LOG_F("RF4432_ReadReg addr: 0x%02x\r\n", addr); uint8_t value; RF4432_SEL_0; SPI_Write(addr | RR); value = SPI_Read(); RF4432_SEL_1; return value; } //---------------------------------------------------------RF4432寄存器写入函数---------------------------------------------------------- void RF4432_WriteReg(uint8_t addr, uint8_t value) { LOG_F("RF4432_WriteReg addr: 0x%02x,value : 0x%02x\r\n", addr, value); RF4432_SEL_0; SPI_Write(addr | WR); SPI_Write(value); RF4432_SEL_1; } //---------------------------------------------------------RF4432寄存器写入函数----------------------------------------------------------- void RF4432_WriteBurestReg(uint8_t addr, uint8_t *p, uint8_t count) { uint8_t i; RF4432_SEL_0; SPI_Write(addr | WR); for (i = 0; i < count; i++) { SPI_Write(p[i]); } RF4432_SEL_1; } //---------------------------------------------------------RF4432寄存器读取函数------------------------------------------------------------ void RF4432_ReadBurestReg(uint8_t addr, uint8_t *p, uint8_t count) { uint8_t i; RF4432_SEL_0; SPI_Write(addr | RR); for (i = 0; i < count; i++) { p[i] = SPI_Read(); } RF4432_SEL_1; } //----------------------------------------------------------RF4432射频芯片初始化函数------------------------------------------------------ void RF4432_Init(void) { gpio = bflb_device_get_by_name("gpio"); /* spi cs */ bflb_gpio_init(gpio, SPI_CS_PIN, GPIO_OUTPUT | GPIO_PULLUP | GPIO_SMT_EN | GPIO_DRV_1); /* spi clk */ bflb_gpio_init(gpio, SPI_CLK_PIN, GPIO_OUTPUT | GPIO_PULLUP | GPIO_SMT_EN | GPIO_DRV_1); /* spi miso */ bflb_gpio_init(gpio, SPI_MISO_PIN, GPIO_INPUT | GPIO_PULLUP | GPIO_SMT_EN | GPIO_DRV_1); /* spi mosi */ bflb_gpio_init(gpio, SPI_MOSI_PIN, GPIO_OUTPUT | GPIO_PULLUP | GPIO_SMT_EN | GPIO_DRV_1); /* nirq */ bflb_gpio_init(gpio, IRQ_PIN, GPIO_INPUT | GPIO_PULLUP | GPIO_SMT_EN | GPIO_DRV_1); /* sdn */ bflb_gpio_init(gpio, SDN_PIN, GPIO_OUTPUT | GPIO_PULLUP | GPIO_SMT_EN | GPIO_DRV_1); /* 收发模式切换控制端 */ bflb_gpio_init(gpio, PAC_PIN, GPIO_OUTPUT | GPIO_PULLUP | GPIO_SMT_EN | GPIO_DRV_1); RF4432_SDN_0; //允许RF4432工作 bflb_mtimer_delay_ms(20); RF4432_WriteReg(OPERATING_FUNCTION_CONTROL_1, 0x80); //软件复位，详细请见P101页 bflb_mtimer_delay_ms(10); RF4432_ReadReg(INTERRUPT_STATUS_1); RF4432_ReadReg(INTERRUPT_STATUS_2); RF4432_WriteReg(INTERRUPT_ENABLE_1, 0x00); RF4432_WriteReg(INTERRUPT_ENABLE_2, 0x01); //中断使能 RF4432_WriteReg(IF_FILTER_BANDWIDTH, 0x8b); //IF滤波器带宽 BW = 75.2Khz; Rb = 50Kbps; Fd = 25Khz; RF4432_WriteReg(CLOCK_RECOVERY_OVERSAMPLING_RATIO, 0x2c); //时钟恢复过抽样率 RF4432_WriteReg(CLOCK_RECOVERY_OFFSET_2, 0x20); //时钟恢复偏差2 RF4432_WriteReg(CLOCK_RECOVERY_OFFSET_1, 0x6d); //时钟恢复偏差1 RF4432_WriteReg(CLOCK_RECOVERY_OFFSET_0, 0x3a); //时钟恢复偏差0 RF4432_WriteReg(CLOCK_RECOVERY_TIMING_LOOP_GAIN_1, 0x00); //时钟恢复定时增益1 RF4432_WriteReg(CLOCK_RECOVERY_TIMING_LOOP_GAIN_0, 0x18); //时钟恢复定时增益0 RF4432_WriteReg(RSSI_THRESHOLD_FOR_CLEAR_CHANNEL_INDICATOR, 0xf0); //无干扰信指示器接收信号强度指示（RSSI） RF4432_WriteReg(DATA_ACCESS_CONTROL, 0x88); //数据存储控制 RF4432_WriteReg(HEADER_CONTROL_1, 0x8c); //帧头控制1 RF4432_WriteReg(HEADER_CONTROL_2, 0x0a); //帧头控制2 RF4432_WriteReg(PREAMBLE_LENGTH, 0x08); //前导码长度 RF4432_WriteReg(TRANSMIT_PACKET_LENGTH, RF4432_TxRxBuf_Len); //发送数据包长度设置 RF4432_WriteReg(RECEIVED_PACKET_LENGTH, RF4432_TxRxBuf_Len); //接收数据包长度设置 RF4432_WriteReg(HEADER_ENABLE_3, 0x00); //帧头使能3 RF4432_WriteReg(HEADER_ENABLE_2, 0x00); //帧头使能2 RF4432_WriteReg(HEADER_ENABLE_1, 0x00); //帧头使能1 RF4432_WriteReg(HEADER_ENABLE_0, 0x00); //帧头使能0 RF4432_WriteReg(AGC_OVERRIDE_2, 0x0b); //AGC过载2 RF4432_WriteReg(TX_POWER, 0x07); //发射功率 RF4432_WriteReg(TX_DATA_RATE_1, 0x0c); //发射数据波特率1 TX_DR=10^3*txdr[15:0]/2^16 kbit/s RF4432_WriteReg(TX_DATA_RATE_0, 0xcc); //发射数据波特率0 RF4432_WriteReg(MODULATION_MODE_CONTROL_1, 0x02); //调制模式控制1 RF4432_WriteReg(MODULATION_MODE_CONTROL_2, 0x26); //调制模式控制2（设置为FIFO模式 FSK reg71H） RF4432_WriteReg(FREQUENCY_DEVIATION, 0x40); //频率偏差 25KHz f=fd[7:0]*625Hz RF4432_WriteReg(FREQUENCY_BAND_SELECT, 0x53); //频段选择 reg75H RF4432_WriteReg(NOMINAL_CARRIER_FREQUENCY_1, 0x4b); RF4432_WriteReg(NOMINAL_CARRIER_FREQUENCY_0, 0x00); //标称载波频率（通信频率433MHZ reg76H） RF4432_WriteReg(TX_FIFO_CONTROL_1, 0x3F); RF4432_WriteReg(TX_FIFO_CONTROL_2, 0x00); //TX_FIFO控制 RF4432_WriteReg(RX_FIFO_CONTROL, 0x3F); //RX_FIFO控制 RF4432_WriteReg(OPERATING_FUNCTION_CONTROL_2, RF4432_ReadReg(OPERATING_FUNCTION_CONTROL_2) | 0x01); RF4432_WriteReg(OPERATING_FUNCTION_CONTROL_2, RF4432_ReadReg(OPERATING_FUNCTION_CONTROL_2) & 0xFE); RF4432_WriteReg(OPERATING_FUNCTION_CONTROL_2, RF4432_ReadReg(OPERATING_FUNCTION_CONTROL_2) | 0x02); RF4432_WriteReg(OPERATING_FUNCTION_CONTROL_2, RF4432_ReadReg(OPERATING_FUNCTION_CONTROL_2) & 0xFD); //工作模式和功能控制 } //---------------------------------------------------------RF4432设置接收模式函数--------------------------------------------------------------- void RF4432_SetRxMode(void) { RF4432_PAC_0; RF4432_WriteReg(OPERATING_FUNCTION_CONTROL_2, RF4432_ReadReg(OPERATING_FUNCTION_CONTROL_2) | 0x02); RF4432_WriteReg(OPERATING_FUNCTION_CONTROL_2, RF4432_ReadReg(OPERATING_FUNCTION_CONTROL_2) & 0xFD); RF4432_ReadReg(INTERRUPT_STATUS_1); RF4432_ReadReg(INTERRUPT_STATUS_2); RF4432_WriteReg(INTERRUPT_ENABLE_1, 0x02); RF4432_WriteReg(OPERATING_FUNCTION_CONTROL_1, 0x05); //接收 } //---------------------------------------------------------RF4432数据包接收函数--------------------------------------------------------------- unsigned char RF4432_RxPacket(void) { //RF4432_IRQ_1; //P1DIR &= ~BIT0; if (!RF4432_IRQ_IN) { if (RF4432_ReadReg(INTERRUPT_STATUS_1) & 0x02) { return 1; } } return 0; } //------------------------------RF4432数据包发送函数---------------------------------------- void RF4432_TxPacket(void) { RF4432_PAC_1; RF4432_WriteReg(OPERATING_FUNCTION_CONTROL_2, RF4432_ReadReg(OPERATING_FUNCTION_CONTROL_2) | 0x01); RF4432_WriteReg(OPERATING_FUNCTION_CONTROL_2, RF4432_ReadReg(OPERATING_FUNCTION_CONTROL_2) & 0xFE); RF4432_WriteBurestReg(FIFO_ACCESS, RF4432_TxRxBuf, RF4432_TxRxBuf_Len); RF4432_ReadReg(INTERRUPT_STATUS_1); RF4432_ReadReg(INTERRUPT_STATUS_2); RF4432_WriteReg(INTERRUPT_ENABLE_1, 0x04); RF4432_WriteReg(OPERATING_FUNCTION_CONTROL_1, 0x09); //发射 while (1) { //RF4432_IRQ_1; //delay_us(10); //P1IN = BIT0; //P2DIR &= ~BIT0; if (!RF4432_IRQ_IN) { if (RF4432_ReadReg(INTERRUPT_STATUS_1) & 0x04) //详细请看P95页 { break; } } //P2DIR |= BIT0; } } void RF4432_IOSet() { // P1DIR |= 0xF6; //P6DIR |= 0x03; } ``` 代码借鉴单片机程序修改目前数据收发正常。 ## 结果  源码放评论区了

源码

太牛了，感谢分享

社区又丰富了

小朋友把问题解决了呀

爱笑 发表于 2024-11-8 08:42
小朋友把问题解决了呀

头发都掉光了，园长给加鸡腿。不加鸡腿就捣蛋。

lazy 发表于 2024-11-8 09:18
头发都掉光了，园长给加鸡腿。不加鸡腿就捣蛋。

必须加鸡腿，继续加油发帖，就可以拿到奖励了~

666, 太厉害了

👍👍👍

厉害了