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Dependencies: HEPTA_SENSOR mbed HEPTA_EPS HEPTA_COM HEPTA_CDH
Diff: main.cpp
- Revision:
- 33:57c79f4b3997
- Parent:
- 32:c22cbcfb4635
--- a/main.cpp Fri Aug 19 04:35:30 2022 +0000 +++ b/main.cpp Tue Aug 30 02:38:16 2022 +0000 @@ -3,6 +3,13 @@ #include "HEPTA_EPS.h" #include "HEPTA_SENSOR.h" #include "HEPTA_COM.h" + +//SWUART +#define SW_BAUD_RATE 9600.0//19200.0 +#define IN_BUF_SIZE 256 +#define TRUE 1 +#define FALSE 0 + HEPTA_CDH cdh(p5, p6, p7, p8, "sd"); HEPTA_EPS eps(p16,p26); HEPTA_SENSOR sensor(p17, @@ -10,20 +17,335 @@ p13, p14,p25,p24); HEPTA_COM com(p9,p10); DigitalOut condition(LED1); +DigitalOut LandLED1(p29); +DigitalOut LandLED2(p30); +DigitalOut LandLED3(p11); +DigitalOut LandLED4(p12); + Serial sat(USBTX,USBRX,9600); Timer sattime; int rcmd = 0,cmdflag = 0; //command variable +//SWUART +//Digital pins for SW-UART +DigitalOut swTX(p23); +DigitalIn swRX(p22); + +DigitalOut debug2(LED2); +DigitalOut debug3(LED3); +DigitalOut debug4(LED4); + +//Ticker for baudrate +Ticker br_tick; + +static unsigned char inbuf[IN_BUF_SIZE]; +static unsigned char qin = 0; +static unsigned char qout = 0; + +static char flag_rx_waiting_for_stop_bit; +static char flag_rx_off; +static char rx_mask; +static char flag_rx_ready; +static char flag_tx_ready; +static char timer_rx_ctr; +static char timer_tx_ctr; +static char bits_left_in_rx; +static char bits_left_in_tx; +static char rx_num_of_bits; +static char tx_num_of_bits; +static int internal_rx_buffer; +static int internal_tx_buffer; +static int user_tx_buffer; + +float b_rate = 0.0; +int co2ppm = 0; +char co2_str[9] = {0}; +char mybit = 0; + +//Interface routines by AB +// Returns 0 or 1 dependent on whether the receive pin is high or low. +int get_rx_pin_status(void){ + if(swRX == 1) + return 1; + else + return 0; +} + +// Background functions to execute while waiting for input. +void idle(void){ + ; +} + +// Sets the timer to 3 times the baud rate. +void timer_set( float the_rate ){ + //b_rate = 1/(3*the_rate); + b_rate = 1/the_rate; +} + +// Enables the timer interrupt. +/* +void set_timer_interrupt( int the_isr ) +{ + br_tick.attach(&the_isr, b_rate); +} +*/ + + + +void swuart_isr(void) + { + + // AB transmit + if ( flag_tx_ready ){ + if (mybit == 0) + swTX = 0; + else + swTX = 1; + flag_tx_ready = FALSE; + } +/* char mask, start_bit, flag_in; + //debug4 != debug4; +// Transmitter Section + if ( flag_tx_ready ) + { + if ( --timer_tx_ctr<=0 ) + { + //debug4 = 1; + mask = internal_tx_buffer&0x1; + //sat.printf("%d,%d",mask,bits_left_in_tx); + internal_tx_buffer >>= 1; + if ( mask == 1 ) + { + swTX = 1; + } + else + { + swTX = 0; + } + timer_tx_ctr = 3; + if ( --bits_left_in_tx<=0 ) + { + flag_tx_ready = FALSE; + } + } + } +// Receiver Section +/* + if ( flag_rx_off==FALSE ) + { + if ( flag_rx_waiting_for_stop_bit ) + { + if ( --timer_rx_ctr<=0 ) + { + flag_rx_waiting_for_stop_bit = FALSE; + flag_rx_ready = FALSE; + internal_rx_buffer &= 0xFF; + if ( internal_rx_buffer!=0xC2 ) + { + inbuf[qin] = internal_rx_buffer; + if ( ++qin>=IN_BUF_SIZE ) + { + qin = 0; + } + } + } + } + else // rx_test_busy + { + if ( flag_rx_ready==FALSE ) + { + start_bit = get_rx_pin_status(); +// Test for Start Bit + if ( start_bit==0 ) + { + flag_rx_ready = TRUE; + internal_rx_buffer = 0; + timer_rx_ctr = 4; + bits_left_in_rx = rx_num_of_bits; + rx_mask = 1; + } + } + else // rx_busy + { + if ( --timer_rx_ctr<=0 ) + { // rcv + timer_rx_ctr = 3; + flag_in = get_rx_pin_status(); + if ( flag_in ) + { + internal_rx_buffer |= rx_mask; + } + rx_mask <<= 1; + if ( --bits_left_in_rx<=0 ) + { + flag_rx_waiting_for_stop_bit = TRUE; + } + } + } + } + } + */ + } + +void init_swuart( void ) +{ + flag_tx_ready = FALSE; + flag_rx_ready = FALSE; + flag_rx_waiting_for_stop_bit = FALSE; + flag_rx_off = TRUE; // Start with receiver off FALSE; + rx_num_of_bits = 10; + tx_num_of_bits = 10; + + swTX = 1; // start with TX line high + timer_set( SW_BAUD_RATE ); + br_tick.attach(&swuart_isr, b_rate); + } + +char _swgetchar( void ) +{ + char ch; + + do + { + while ( qout==qin ) + { + idle(); + } + ch = inbuf[qout] & 0xFF; + if ( ++qout>=IN_BUF_SIZE ) + { + qout = 0; + } + } + while ( ch==0x0A || ch==0xC2 ); + return( ch ); +} + +void _swputchar( char ch ) +{ + ch = (ch<<1)|0x200; + sat.printf("ch=%x",ch); + for(int i = 0; i < 10; i++){ + while ( flag_tx_ready == 1); + ch = ch >> 1; + mybit = ch & 0x1; + flag_tx_ready = TRUE; + } + sat.printf("putchar done"); + //debug2 = 1; +/* while ( flag_tx_ready ){ + sat.printf("waiting for TX to complete ...\r\n"); + } + user_tx_buffer = ch; + +// invoke_UART_transmit + bits_left_in_tx = tx_num_of_bits; + internal_tx_buffer = (user_tx_buffer<<1) | 0x200; + timer_tx_ctr = 3; + flag_tx_ready = TRUE; + //debug2 = 0; +*/ +} + +void flush_input_buffer( void ) +{ + qin = 0; + qout = 0; +} + +char kbhit( void ) +{ + return( qin!=qout ); +} + +void turn_rx_on( void ) +{ + flag_rx_off = FALSE; +} + +void turn_rx_off( void ) +{ + flag_rx_off = TRUE; +} + +void read_co2( void ){ + // write to MH-Z19C + + _swputchar( 0xa5 ); + _swputchar( 0x33 ); + + //sat.printf("ch1"); + _swputchar( 0xff ); + //sat.printf("ch2"); + _swputchar( 0x01 ); + _swputchar( 0x86 ); + _swputchar( 0x00 ); + _swputchar( 0x00 ); + _swputchar( 0x00 ); + _swputchar( 0x00 ); + _swputchar( 0x00 ); + _swputchar( 0x79 ); + wait_ms(100); + sat.printf("TX done"); + for(int i=0; i<9;i++){ + co2_str[i] = _swgetchar(); + } + + turn_rx_on(); + + for(int i=0; i<9;i++){ + sat.printf("%02x",co2_str[i]); + } +} + + + int main() { + + debug2 = 1; + debug3 = 1; + debug4 = 1; + wait_ms(500); + debug2 = 0; + debug3 = 0; + debug4 = 0; + wait_ms(500); + debug2 = 1; + debug3 = 1; + debug4 = 1; + wait_ms(500); + debug2 = 0; + debug3 = 0; + debug4 = 0; + wait_ms(500); + debug2 = 1; + debug3 = 1; + debug4 = 1; + wait_ms(500); + debug2 = 0; + debug3 = 0; + debug4 = 0; + wait_ms(500); + + turn_rx_off(); + init_swuart(); + + LandLED1 = 1; + LandLED2 = 1; + LandLED3 = 1; + LandLED4 = 1; sat.printf("From Sat : Nominal Operation\r\n"); com.printf("From Sat : Nominal Operation\r\n"); com.baud(9600); int flag = 0; //condition flag float batvol, temp; //voltage, temperature int rcmd=0,cmdflag=0; //command variable + float ax,ay,az; + float gx,gy,gz; + sattime.start(); eps.turn_on_regulator();//turn on 3.3V conveter - for(int i = 0; i < 100; i++) { + while(1) { com.xbee_receive(&rcmd,&cmdflag);//interupting by ground station command //satellite condition led @@ -36,7 +358,10 @@ //Transmitting HK data to Ground Station(GS) com.printf("HEPTASAT::Condition = %d, Time = %f [s], batVol = %.2f [V],Temp = %.2f [C]\r\n",flag,sattime.read(),batvol,temp); wait_ms(1000); - + LandLED1 = ! LandLED1; + LandLED2 = ! LandLED2; + LandLED3 = ! LandLED3; + LandLED4 = ! LandLED4; //Power Saving Mode if((batvol <= 3.5) | (temp > 35.0)){ eps.shut_down_regulator(); @@ -51,7 +376,7 @@ if (cmdflag == 1) { if (rcmd == 'a') { sat.printf("rcmd=%c,cmdflag=%d\r\n",rcmd,cmdflag); - com.printf("Hepta-Sat Lite Uplink Ok\r\n"); + com.printf("Hepta-Sat Uplink Ok\r\n"); for(int j=0;j<5;j++){ com.printf("Hello World!\r\n"); condition = 1; @@ -59,7 +384,7 @@ } }else if (rcmd == 'b') { sat.printf("rcmd=%c,cmdflag=%d\r\n",rcmd,cmdflag); - com.printf("Hepta-Sat Lite Uplink Ok\r\n"); + com.printf("Hepta-Sat Uplink Ok\r\n"); char str[100]; mkdir("/sd/mydir", 0777); FILE *fp = fopen("/sd/mydir/satdata.txt","w"); @@ -81,13 +406,46 @@ fclose(fp); }else if (rcmd == 'c') { //Please insert your answer - + sat.printf("Command Get %d\r\n",rcmd); + com.printf("HEPTA Uplink OK\r\n"); + sat.printf("===================\r\n"); + sat.printf("Accel sensing Mode\r\n"); + sat.printf("===================\r\n"); + for(int ii = 0; ii < 10; ii++) { + sensor.sen_acc(&ax,&ay,&az); + com.printf("AX = %f\r\n",ax); + com.printf("AY = %f\r\n",ay); + com.printf("AZ = %f\r\n",az); + wait(0.5); + } }else if (rcmd == 'd') { - //Please insert your answer + sat.printf("Command Get %d\r\n",rcmd); + com.printf("HEPTA Uplink OK\r\n"); + sat.printf("===================\r\n"); + sat.printf("Gyro sensing Mode\r\n"); + sat.printf("===================\r\n"); + for(int ii = 0; ii < 10; ii++) { + sensor.sen_gyro(&gx,&gy,&gz); + com.printf("GX = %f\r\n",gx); + com.printf("GY = %f\r\n",gy); + com.printf("GZ = %f\r\n",gz); + wait(0.5); + } }else if (rcmd == 'e') { - //Please insert your answer - + sat.printf("Command Get %d\r\n",rcmd); + com.printf("HEPTA Uplink OK\r\n"); + sat.printf("===================\r\n"); + sat.printf("CO2 sensing Mode\r\n"); + sat.printf("===================\r\n"); + + co2ppm = 42; + for(int ii = 0; ii < 10; ii++) { + read_co2(); + co2ppm = co2_str[2]*256 + co2_str[3]; + com.printf("CO2 = %d [ppm]\r\n",co2ppm); + wait(0.5); + } } com.initialize(); } @@ -96,3 +454,4 @@ sat.printf("From Sat : End of operation\r\n"); com.printf("From Sat : End of operation\r\n"); } +