dra818.cpp

00001 #include "mbed.h"
00002 #include "dra818.h"
00003 
00004 DRA818::DRA818(Serial *s, PinName PTT): PTT_PIN(PTT){
00005     this->serial = s;
00006     this->PTT_PIN=1;
00007    
00008     this->tx_ctcss = 0;
00009     this->rx_ctcss = 0;
00010     this->tx_freq =  146.500;
00011 
00012     this->volume = 4;
00013     this->squelch = 0;
00014     this->preemph = 0;
00015     this->highpass = 0;
00016     this->lowpass = 0;
00017 }
00018 
00019 
00020 void DRA818::setTXFreq(double tx_freq){
00021     if( (tx_freq>136.000 && tx_freq<174.000 ) || (tx_freq>410.000 && tx_freq<480.000) ){
00022         this->tx_freq = tx_freq;
00023     }
00024 }
00025 
00026 void DRA818::setRXFreq(double rx_freq){
00027     if( (rx_freq>136.000 && rx_freq<174.000 ) || (rx_freq>410.000 && rx_freq<480.000) ){
00028         this->rx_freq = rx_freq;
00029     }
00030 }
00031 
00032 // Refer to https://en.wikipedia.org/wiki/CTCSS for CTCSS values.
00033 void DRA818::setTXCTCSS(uint8_t ctcss){
00034     if(ctcss<=38){
00035         this->tx_ctcss = ctcss;
00036     }
00037 }
00038 void DRA818::setRXCTCSS(uint8_t ctcss){
00039     if(ctcss<=38){
00040         this->rx_ctcss = ctcss;
00041     }
00042 }
00043 
00044 void DRA818::setGWB(bool gwb){
00045     this->gwb=gwb?1:0;
00046 }
00047 
00048 void DRA818::setSquelch(uint8_t sql){
00049     if(sql<=8){
00050         this->squelch = sql;
00051     }
00052 }
00053 
00054 void DRA818::writeFreq(){
00055     this->PTT_PIN=1;
00056     wait_ms(500); // Delay for a bit, to let the uC boot up (?)
00057 
00058     char tx_freq_buffer[10];
00059     char rx_freq_buffer[10];
00060 
00061     sprintf(tx_freq_buffer,"%.4f",this->tx_freq);
00062     sprintf(rx_freq_buffer,"%.4f",this->rx_freq);
00063     sprintf(this->buffer,"AT+DMOSETGROUP=%d,%s,%s,%04d,%1d,%04d\r\n",this->gwb,tx_freq_buffer,rx_freq_buffer,this->tx_ctcss,this->squelch,this->rx_ctcss);
00064     this->serial->printf("%s",this->buffer);
00065 }
00066 
00067 void DRA818::setVolume(uint8_t vol){
00068     if(vol>=1 || vol<=8){
00069         this->volume = vol;
00070     }
00071 
00072     this->PTT_PIN=1;
00073     wait_ms(500); // Delay for a bit, to let the uC boot up (?)
00074 
00075     sprintf(this->buffer,"AT+DMOSETVOLUME=%1d\r\n",this->volume);
00076     this->serial->printf("%s",this->buffer);
00077 }
00078 
00079 void DRA818::setFilters(bool preemph, bool highpass, bool lowpass){
00080     this->preemph=preemph?1:0;
00081     this->highpass=highpass?1:0;
00082     this->lowpass=lowpass?1:0;
00083 
00084     this->PTT_PIN=1;
00085     wait_ms(500); // Delay for a bit, to let the uC boot up (?)
00086 
00087     sprintf(this->buffer,"AT+SETFILTER=%1d,%1d,%1d\r\n",this->preemph,this->highpass,this->lowpass);
00088     this->serial->printf("%s",this->buffer);
00089 }