126 lines
4.9 KiB
C
126 lines
4.9 KiB
C
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include "ql_gpio.h"
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#define SPI_CLK_PIN 1
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#define SPI_CLK_IO GPIO_9
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#define SPI_MISO_PIN 2
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#define SPI_MISO_IO GPIO_12
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#define SPI_MOSI_PIN 3
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#define SPI_MOSI_IO GPIO_11
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#define SPI_CS_PIN 4
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#define SPI_CS_IO GPIO_10
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#define SPI_RST_PIN 59 //spi2-mosi
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#define SPI_RST_IO GPIO_2
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#define SPI_INT_PIN 60 //spi2-miso
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#define SPI_INT_IO GPIO_3
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#define SPI_BUSY_PIN 61 //spi2-clk
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#define SPI_BUSY_IO GPIO_0
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#define LORA_SYNCWORD_1 0x3444
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#define LORA_SYNCWORD_2 0x1444
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/*cmd*/
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#define LORA_SET_REGULATORMODE 0x96
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#define LORA_SET_RFSWITCHMODE 0x9D
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#define LORA_SET_CALIBRATE 0x89
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#define LORA_SET_BUFFERBASEADDRESS 0x8F
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#define LORA_SET_PACONFIG 0x95
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#define LORA_SET_TX_PARAMS 0x8E
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#define LORA_SET_CALIBRATEIMAGE 0x98
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#define LORA_SET_RFFREQ 0x86
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#define LORA_SET_STOPRXTIMERONPREAMBLE 0x9F
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#define LORA_SET_SYMBNUMTIMEOUT 0xA0
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#define LORA_SET_PACKETTYPE 0x8A
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#define LORA_SET_MODULATIONPARAMS 0x8B
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#define LORA_SET_PACKETPARAMS 0x8C
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#define LORA_SET_DIO_IRQ_CONFIG 0x08
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#define LORA_SET_RX 0x82 //将芯片设置为接收模式
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#define LORA_GET_STATUS 0xC0 //返回设备当前状态
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#define LORA_GET_IRQSTATUS 0x12 //获取中断状态
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#define LORA_CLEAR_IRQSTATUS 0x02 //清除中断状态
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/*register addr*/
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#define LORA_SET_OCP 0x08E7
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#define LORA_SYNCWORD 0x0740
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/*参数宏*/
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//CALIBRATE
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#define CALIBRATE_IMAGE_OFF 0b00000000 // 6 6 image calibration: disabled
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#define CALIBRATE_IMAGE_ON 0b01000000 // 6 6 enabled
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#define CALIBRATE_ADC_BULK_P_OFF 0b00000000 // 5 5 ADC bulk P calibration: disabled
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#define CALIBRATE_ADC_BULK_P_ON 0b00100000 // 5 5 enabled
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#define CALIBRATE_ADC_BULK_N_OFF 0b00000000 // 4 4 ADC bulk N calibration: disabled
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#define CALIBRATE_ADC_BULK_N_ON 0b00010000 // 4 4 enabled
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#define CALIBRATE_ADC_PULSE_OFF 0b00000000 // 3 3 ADC pulse calibration: disabled
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#define CALIBRATE_ADC_PULSE_ON 0b00001000 // 3 3 enabled
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#define CALIBRATE_PLL_OFF 0b00000000 // 2 2 PLL calibration: disabled
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#define CALIBRATE_PLL_ON 0b00000100 // 2 2 enabled
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#define CALIBRATE_RC13M_OFF 0b00000000 // 1 1 13 MHz RC osc. calibration: disabled
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#define CALIBRATE_RC13M_ON 0b00000010 // 1 1 enabled
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#define CALIBRATE_RC64K_OFF 0b00000000 // 0 0 64 kHz RC osc. calibration: disabled
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#define CALIBRATE_RC64K_ON 0b00000001 // 0 0 enabled
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//standby
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#define LORA_STANDBY_RC 0x00
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#define LORA_STANDBY_XOSC 0x01
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//regulator
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#define REGULATOR_DCDC 0x01
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#define REGULATOR_LDO 0x00
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//freq
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#define XTAL_FREQ (double)(32000000)
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#define FREQ_DIV (double)(33554432) //2的25次方
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#define FREQ_STEP (double)(XTAL_FREQ/FREQ_DIV)
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#define RF_FREQ (uint32_t)470000000
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//irq
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typedef enum
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{
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IRQ_RADIO_NONE = 0x0000,
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IRQ_TX_DONE = 0x0001,
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IRQ_RX_DONE = 0x0002,
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IRQ_PREAMBLE_DETECTED = 0x0004,
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IRQ_SYNCWORD_VALID = 0x0008,
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IRQ_HEADER_VALID = 0x0010,
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IRQ_HEADER_ERROR = 0x0020,
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IRQ_CRC_ERROR = 0x0040,
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IRQ_CAD_DONE = 0x0080,
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IRQ_CAD_ACTIVITY_DETECTED = 0x0100,
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IRQ_RX_TX_TIMEOUT = 0x0200,
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IRQ_RADIO_ALL = 0xFFFF,
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}RadioIrqMasks_t;
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/*初始化spi总线*/
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int lora_spi_init(void);
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/*初始化lora所需的gpio口*/
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int lora_gpio_init(void);
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/*初始化收发数组内存，进行32字节对齐*/
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void transfer_buf_init(void);
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/*复位lora模块*/
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void lora_reset(void);
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/*等待busy被拉低*/
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int wait_busy_low(void);
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/*写命令*/
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int lora_write_cmd(uint8_t cmd, uint8_t *data, uint8_t len);
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/*读命令*/
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int lora_read_cmd(uint8_t cmd, uint8_t len);
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/*写寄存器*/
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int lora_wrtie_register(uint16_t add,uint8_t *data,uint8_t len);
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/*读寄存器*/
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int lora_read_register(uint16_t add, uint8_t size);
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/*写buffer*/
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void lora_write_buffer(uint8_t *data, uint8_t len);
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/*读buffer*/
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void lora_read_buffer(uint8_t offset, uint8_t len);
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