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| gbeardall |
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/*
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| gbeardall |
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* gps1
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*
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* http://www.sparkfun.com/products/9133
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* http://www.sparkfun.com/datasheets/GPS/Modules/Skytraq-Venus634FLPx_DS_v051.pdf
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* http://www.sparkfun.com/datasheets/GPS/Modules/AN0003_v1.4.14_FlashOnly.pdf
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*
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*/
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#include "mbed.h"
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DigitalOut myled(LED1);
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Serial pc(USBTX,USBRX);
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Serial gps(p9,p10); // tx, rx
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volatile unsigned char buff[128];
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volatile int bx = 0;
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volatile int rdy = 0;
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unsigned char chk = 0;
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void rxgps(void) {
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//while(gps.readable()) {
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int c = gps.getc();
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pc.putc(c);
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if(c == '$') {
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bx = 0;
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chk = 0;
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}
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else {
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if(c == '*') {
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pc.printf("%02X=", chk);
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}
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else {
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chk ^= (unsigned char)c;
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}
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}
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buff[bx++] = c;
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if(c == '\n') rdy = 1;
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//if(c == '\n') pc.putc('\r');
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//if(c == '\r') pc.putc('\n');
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//} // while
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} // rxgps
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int main() {
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// pc.baud must be >= gps.baud
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pc.baud(115200);
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pc.printf("gps1\n\r");
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gps.baud(38400); // 9600, 19200, 38400, 57600, 115200
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gps.format(8,Serial::None,1);
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gps.attach(&rxgps, Serial::RxIrq);
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// GGA - Global Positioning System Fix Data
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// GPGGA,hhmmss.sss,ddmm.mmmm,a,dddmm.mmmm,a,x,xx,x.x, x.x,M,,,, xxxx*hh<CR><LF>
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// $GPGGA,184538.245,5105.0363,N,00109.9405,W,1,09,1.1,90.4,M,48.7,M,,0000*76
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// GLL – Latitude/Longitude
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// GPGLL,ddmm.mmmm,a,dddmm.mmmm,a,hhmmss.sss,A,a*hh<CR><LF>
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// $GPGLL,5105.0363,N,00109.9405,W,184538.245,A,A*4C
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// GSA – GNSS DOP and Active Satellites
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// GPGSA,A,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,x.x,x.x,x.x*hh<CR><LF>
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// $GPGSA,A,3,19,08,06,18,16,22,24,07,11, , , ,2.0,1.1,1.7*3F
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// GSV – GNSS Satellites in View
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// GPGSV,x,x,xx,xx,xx,xxx,xx,…,xx,xx,xxx,xx *hh<CR><LF>
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// $GPGSV,3,1,12,19,77,295,20,03,66,137,14,22,55,098,32,06,53,125,33*79
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// $GPGSV,3,2,12,18,31,053,19,11,30,261,32,16,27,183,24,24,19,246,24*7F
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// $GPGSV,3,3,12,08,15,301,36,07,10,275,27,21,06,069,09,15,05,019,*78
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// RMC – Recommended Minimum Specific GNSS Data
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// time date
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// GPRMC,hhmmss.sss,A,dddmm.mmmm,a,dddmm.mmmm,a,x.x,x. x, ddmmyy,,,a*hh<CR><LF>
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// $GPRMC,184538.245,A,5105.0363, N,00109.9405,W,000.0,243.1,210811,,,A*74
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// VTG – Course Over Ground and Ground Speed
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// GPVTG,x.x, T,,M,x.x, N,x.x, K,a*hh<CR><LF>
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// $GPVTG,243.1,T,,M,000.0,N,000.0,K,A*09
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for(;;) {
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//int c = gps.
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//wait_us(10);
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int px = 0;
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while(!rdy); // wait for gps buffer
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} // for - ever
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} // main
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gavin beardall