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標題:
LT8910驅動程序(無線發送和接受源碼)
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作者:
zubingming
時間:
2018-5-16 15:50
標題:
LT8910驅動程序(無線發送和接受源碼)
官方提供的LT8910驅動程序,需要的朋友拿去參考參考
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下載附件
2018-5-16 18:30 上傳
LT8920 是一款低成本，高集成度的 2.4GHZ 的無線收發芯片。是之前LT8910的升級版!
外圍射頻電路簡單,直接接天線
包括射頻前端和數字基帶的單芯片解決方案：
※ 支持跳頻
※ 支持 SPI 和 I2C 接口
※ 內置 auto_ack 功能
※ 數據率 1Mbps， 250Kbps， 125Kbps， 62.5Kbps
※ 極低功耗(1uA)
※ 支持信號能量檢測
※ 單芯片傳輸距離 200 米
※ TSSOP16 的封裝
單片機源程序如下:
#include "intrins.h"
#include "IIC_Drive.h"
#include "LCD_Drive.h"
#include "Interrupt.h"
#include "SPI.h"
#define SPI_TEST
#define RX_MODE 0x80
#define SLEEP_MODE 0x40
#define AFTER_SLEEP 0x20
unsigned char *p_rx_sum;
unsigned char working_state = RX_MODE; // working state
unsigned char rssivalue = 0;
unsigned char channel_index[79] = {0x00, 0x01, 0x02,
0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, //2402, 2412, 2422, 2432
0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16,
0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20,
0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,
0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34,
0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e,
0x3f, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49,
0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f};
void main(void)
{
unsigned char rx_sum = 0; //接收次數累加器
unsigned char highReg = 0;
unsigned char lowReg = 0;
unsigned char channelvalue = 0;
p_rx_sum = &rx_sum; //指向累加器的指針
LCD_Initialize();
LCD_WriteCommand(0x80);
LCD_WriteDat(0xf6); //''
LCD_WriteCommand(0x8c);
LCD_WriteDat(0x43); //'C'
LCD_WriteDat(0x48); //'H'
LCD_WriteDat(bcd_table[(channelvalue+2)/10]);
LCD_WriteDat(bcd_table[(channelvalue+2)%10]);
LCD_WriteCommand(0xc0);
LCD_WriteDat(0x72); //'r'
LCD_WriteDat(0x73); //'s'
LCD_WriteDat(0x73); //'s'
LCD_WriteDat(0x69); //'i' means rssi
LCD_WriteDat(bcd_table[rssivalue/10]);
LCD_WriteDat(bcd_table[rssivalue%10]);
Timer0_Init();
//EX0_Init();
EA = 1;
#ifdef SPI_TEST
RST = 0;
Delay_ms(2);
RST = 1;
Delay_ms(5);
PKT = 1;
LT8900_Init();
SPI_ReadReg(4);
if (RegH==0x9c && RegL==0xc9)
{
LED_SPI = 0;
}
while (1)
{
switch(working_state)
{
case RX_MODE:
//rssivalue = 0;
SPI_WriteReg( 7, 0x00, 0x00);
SPI_WriteReg(52, 0x80, 0x80);
EX0 = 0;
SPI_WriteReg( 7, 0x00, 0x80+channelvalue); //TX Enable & channel set to 2480M
EX0 = 1;
// while(PKT);
do
{
SPI_ReadReg(48);
}
while(RegL & 0x40);
SPI_WriteReg( 7, 0x00, 0x00); //goto idle mode
SPI_ReadReg(48);
if(!(RegH & 0x80))
{
LED_RF = ~LED_RF;
SPI_ReadReg(50);
if (RegH==0x03 && RegL==0xce)
rx_sum++; //RX 累加器加一
if (RegH==0x01)
{
channelvalue = RegL; //switch to channel RegL
LCD_WriteCommand(0x8e);
LCD_WriteDat(bcd_table[(channelvalue+2)/10]);
LCD_WriteDat(bcd_table[(channelvalue+2)%10]);
}
SPI_ReadReg(6); //get rssi_value
RegH &= 0xfc;
rssivalue = RegH>>2;
LCD_WriteCommand(0xc4);
LCD_WriteDat(bcd_table[rssivalue/10]);
LCD_WriteDat(bcd_table[rssivalue%10]);
rssivalue = 0;
}
break;
case SLEEP_MODE:
SPI_WriteReg(35, 0x43, 0x00);
SPI_SS = 1;
LCD_WriteCommand(0xc0);
LCD_WriteDat(0x7a);
working_state = AFTER_SLEEP;
break;
case AFTER_SLEEP:
_nop_();
break;
default : break;
}
}
#else
MOSI = 0; // A4 =0
RST = 0;
Delay_ms(2);
RST = 1;
Delay_ms(5);
PKT = 1;
RF_Init();
IIC_ReadReg( 4, &highReg, &lowReg);
if (highReg==0x9c && lowReg==0xc9)
{
LED_IIC = 0;
}
while (1)
{
IIC_WriteReg(52, 0x80, 0x80);
IIC_WriteReg( 7, 0x00, 0xb0); //TX Enable & channel set to 2450M
/*while(PKT);*/
do
{
SPI_ReadReg(48);
}
while(RegL & 0x40);
IIC_WriteReg( 7, 0x00, 0x00); //goto idle mode
IIC_ReadReg(48, &highReg, &lowReg);
if(!(highReg & 0x80))
{
rx_sum++; //RX 累加器加一
LED_RF = ~LED_RF;
}
}
#endif
/*
LCD_WriteCommand(0x80);
LCD_WriteDat(0x32); //'2'
LCD_WriteDat(0x34); //'4'
LCD_WriteDat(0x35); //'5'
LCD_WriteDat(0x30); //'0'
LCD_WriteDat(0xa5); //'.'
*/
/*
if(rx_lcd_flag == 50)
{
LCD_WriteCommand(0x04); // turn left
LCD_WriteCommand(0x8f);
LCD_WriteDat(0x7f); //'<'
}
if(rx_lcd_flag == 100)
{
LCD_WriteDat(0x7f);
}
if(rx_lcd_flag == 150)
{
LCD_WriteDat(0x7f);
}
if(rx_lcd_flag == 200)
{
LCD_WriteDat(0x7f);
}
if(rx_lcd_flag >= 250)
{
rx_lcd_flag = 0;
LCD_WriteCommand(0x06); //寫入新數據后 光標右移一位
LCD_WriteDat(0xa0);
LCD_WriteDat(0xa0);
LCD_WriteDat(0xa0);
LCD_WriteDat(0xa0);
//LCD_WriteCommand(0x06);
}
*/
}
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LT8910驅動程序.rar
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2018-5-16 15:50 上傳
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LT8910驅動程序
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LT8910驅動程序.rar
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