Chaitanya Vanapalli
for checking i2c with integrated bae
Dependencies: SDFileSystem mbed-rtos mbed
Revision 0:cb112a717428, committed 2014-09-15
- Comitter:
- viswa_chaitanya
- Date:
- Mon Sep 15 14:01:49 2014 +0000
- Commit message:
- cdms master(hk runs every 20s)
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Mon Sep 15 14:01:49 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/SDFileSystem/#c8f66dc765d4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hk.cpp Mon Sep 15 14:01:49 2014 +0000
@@ -0,0 +1,25 @@
+#include "hk.h"
+#include "sdcard.h"
+//#include "master.h"
+
+void func_hk_recieve() {
+ while(1){
+ wait(0.5);
+ FUNC_I2C_MASTER_MAIN(1,0x20,24);
+ wait(0.5);
+ }
+}
+
+/*void func_hk_write() {
+ SensorData Sensor;
+ time_t seconds = time(NULL); //seconds has unix standard time
+
+ char beaname[21] = "/sd/beahk/";
+ char acsname[21] = "/sd/acshk/";
+ char epsname[21] = "/sd/epshk/";
+
+ writedummies(&Sensor);
+ setfilenames(beaname, acsname, epsname, seconds);
+ writevaluesf(beaname, acsname, epsname, seconds, &Sensor);
+ readvaluesff(beaname, acsname, epsname, &Sensor);
+}*/
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hk.h Mon Sep 15 14:01:49 2014 +0000 @@ -0,0 +1,11 @@ +#include "mbed.h" +#include "master.h" + +//void t_hk_main(void const *args); //this function initiates the thread + +//void func_hk_show(); //debug only. Shows hk data on pc screen + +//void func_hk_signal_wait(); +//void func_hk_cmd_bae(); +void func_hk_recieve(); +//void func_hk_write(); \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Sep 15 14:01:49 2014 +0000
@@ -0,0 +1,103 @@
+#include "mbed.h"
+#include "rtos.h"
+#include "master.h"
+
+//#include "tmtc.h"
+//#include "science.h"
+//#include "hk.h"
+
+#define intmax 11999
+
+Thread* t_tmtc;
+Thread* t_science_store_sd;
+Thread* t_hk_store_sd;
+
+void t_tmtc_main(void const *args);
+void t_science_main(void const *args);
+void t_hk_main(void const *args);
+void scheduler(void const * args);
+
+Timer timer_main;
+int schedcount = 1;
+Mutex critical;
+
+int main() {
+ Thread thread_tmtc(t_tmtc_main, NULL, osPriorityIdle);
+ t_tmtc = &thread_tmtc;
+ Thread thread_science(t_science_main, NULL, osPriorityLow);
+ t_science_store_sd = &thread_science;
+ Thread thread_hk(t_hk_main, NULL, osPriorityBelowNormal);
+ t_hk_store_sd = &thread_hk;
+
+ RtosTimer schedule(scheduler,osTimerPeriodic);
+ timer_main.start();
+ schedule.start(5000);
+ Thread::wait(osWaitForever);
+}
+
+void scheduler(void const * args)
+{
+ if(schedcount == intmax+1) //the value is reset at this value so as to ensure smooth flow, 65532 and 0 are divisible by 3 and 2.
+ {
+ schedcount =0;
+ }
+
+ if(schedcount%4==0)
+ {
+ printf("\nHK signal at %f\n",timer_main.read());
+ t_hk_store_sd->signal_set(0x01);
+ }
+
+ if(schedcount%3==0)
+ {
+ printf("\nScience signal at %f\n",timer_main.read());
+ t_science_store_sd->signal_set(0x01);
+ }
+
+ if(schedcount==5)
+ {
+ printf("\nTMTC signalled");
+ t_tmtc->signal_set(0x1);
+ }
+
+ schedcount++;
+}
+
+void t_science_main(void const *args) {
+ while (true) {
+ Thread::signal_wait(0x1);
+ critical.lock();
+ printf("science data aquisition started\n");
+ wait(3);
+ printf("science data acquisition ended\n");
+ t_hk_store_sd->signal_set(0x10);
+ critical.unlock();
+ wait(3);
+ printf("Science data written to SD card\n");
+ }
+}
+
+void t_hk_main(void const *args) {
+ while (true) {
+ Thread::signal_wait(0x1);
+ critical.lock();
+ printf("HK acquisition started\n");
+ //FUNC_I2C_MASTER_MAIN(1,0x20,24 );
+ wait(2);
+ printf("HK acquisition ended\n");
+ critical.unlock();
+ wait(2);
+ printf("HK data written to SD card");
+ }
+}
+
+void t_tmtc_main(void const *args) {
+ Thread::signal_wait(0x1);
+ critical.lock();
+ printf("tmtc started\n");
+ wait(5);
+ printf("tmtc ended\n");
+ critical.unlock();
+ wait(5);
+ printf("tmtc executed\n");
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/master.cpp Mon Sep 15 14:01:49 2014 +0000
@@ -0,0 +1,76 @@
+#include "master.h"
+
+I2C master (A4,A5); //configure pins p27,p28 as I2C master
+Serial pc (USBTX,USBRX);
+SensorData Sensor;
+
+void FUNC_I2C_MASTER_MAIN(int command, int slave_address, int iterations)
+{
+ //wait(0.5);
+ printf("\nmaster entered\n");
+ int acknowledge1;
+ int acknowledge2;
+ uint8_t loopvariable1=1,loopvariable2=0;
+ int addr = slave_address;
+ while(loopvariable1)
+ {
+ printf("\nmaster entered loop \n");
+//-------------writing the command to slave--------------------------------------------------------------
+ master.frequency(100000); //set clock frequency
+ master.start(); //initiating the data transfer
+ acknowledge2=master.write(addr|0x00); //addressing the slave to write
+ if(acknowledge2==1) //proceeding further only if slave is addressed
+ {
+ // printf("\nmaster entered 1 \n");
+ acknowledge1=master.write(command); //sending the command to slave
+ if(acknowledge1==1) //proceeding further only if sent data is acknowledged
+ {
+ pc.printf("acknowledge1=%d\n",acknowledge1);
+ loopvariable1=0; //if acknowledged, breaking loop in next iteration
+//--------------reading data from slave---------------------------------------------------------------
+
+ master.frequency(100000); //set clock frequency
+ master.start(); //initiate data transfer
+ acknowledge1 = master.write(addr | 0x01); //addressing the slave to read
+
+ if(acknowledge1==1) //proceedong only if slae is addressed
+ {
+ while(loopvariable2<iterations)
+ {
+ if(loopvariable2%3==0)
+ {
+ Sensor.voltage[loopvariable2/3] = receive_byte(); //receiving data if acknowledged
+ pc.printf(" voltage%d = %u\n",loopvariable2/3,Sensor.voltage[loopvariable2/3]);
+ }
+ else if(loopvariable2%3==1)
+ {
+ Sensor.current[loopvariable2/3] = receive_byte(); //receiving data if acknowledged
+ pc.printf(" current%d = %u\n",loopvariable2/3, Sensor.current[loopvariable2/3]);
+ }
+ else if(loopvariable2%3==2)
+ {
+ Sensor.temp[loopvariable2/3] = receive_byte(); //receiving data if acknowledged
+ pc.printf(" temperature%d = %u\n",loopvariable2/3,Sensor.temp[loopvariable2/3]);
+ }
+ loopvariable2++;
+
+ } //while(loopvariable2<30)
+ }//if(acknowledge1==1)
+
+ master.stop();
+ }//if(acknowledge1==1)
+ }//if(acknowledge2==1)
+ }//while(loopvariable1)
+ pc.printf("done");
+printf("\nMaster exited\n");
+}//main
+
+
+//----------------function to read and return the data received-----------------------------------
+char receive_byte()
+{
+
+ char value;
+ value = master.read(1);
+ return(value); //returning the 4 byte floating point number
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/master.h Mon Sep 15 14:01:49 2014 +0000
@@ -0,0 +1,22 @@
+#include "mbed.h" //library //
+#define get_hk_data 1 //sample telecommands
+#define telecommand2 2
+#define telecommand3 3
+#define telecommand4 '4'
+#define telecommand5 '5'
+#define telecommand6 '6'
+#define telecommand7 '7'
+#define telecommand8 '8'
+#define telecommand9 '9'
+#define telecommand10 '10'
+
+char receive_byte(); //funtion to receive float data
+
+
+struct SensorData //HK_data_structure
+{
+ char voltage[10];
+ char current[10];
+ char temp[10];
+} ;
+void FUNC_I2C_MASTER_MAIN(int command, int slave_address, int iterations);
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos.lib Mon Sep 15 14:01:49 2014 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/mbed_official/code/mbed-rtos/#1520481a219c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Sep 15 14:01:49 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/6213f644d804 \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/science.cpp Mon Sep 15 14:01:49 2014 +0000 @@ -0,0 +1,1 @@ +#include "science.h" \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/science.h Mon Sep 15 14:01:49 2014 +0000 @@ -0,0 +1,11 @@ +//#include "mbed.h" +//#include "rtos.h" + +void t_science_main(void const *args); + +void func_science_signalwait0(); +void func_science_cmd_pyld(); +void func_science_recieve(); +void func_science_write_coarse(); +void func_science_process_fine(); +void func_science_write_fine(); \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sdcard.cpp Mon Sep 15 14:01:49 2014 +0000
@@ -0,0 +1,109 @@
+#include "sdcard.h"
+
+/*SDFileSystem sd(p5, p6, p7, p8, "sd"); // mosi, miso, clk, cs, name
+
+void writedummies(SensorData* Sensor){
+ int i;
+ printf("Writing dummy values\n"); //Debug statement
+ for(i=0; i<10; i++) (*Sensor).Voltage[i] = 35.14; //dummy values. Will be removed
+ for(i=0; i<10; i++) (*Sensor).Current[i] = 644.46;
+ for(i=0; i<10; i++) (*Sensor).Temp[i] = 6534.03;
+ printf("Done writing dummy values\n");
+}
+
+void setfilenames(char* beaname, char* acsname, char* epsname, time_t seconds){
+ char date[7];
+ printf("Setting file names\n");
+ strftime(date, 7, "%d%m%y", localtime(&seconds)); //getting ddmmyy from unix time
+ printf("%s\t%s\t%s\n", beaname, acsname, epsname);
+
+ printf("Appending file extensions\n");
+ for(int i=10; i<16; i++){
+ printf("In %dth iteration",i);
+ beaname[i] = date[i-10]; //creating file name for beacon hk
+ }
+ beaname[16] = '.'; beaname[17] = 't'; beaname[18] = 'x'; beaname[19] = 't'; beaname[20]='\0';
+
+ for(int i=10; i<16; i++) acsname[i] = date[i-10]; //creating file name for acs hk
+ acsname[16] = '.'; acsname[17] = 't'; acsname[18] = 'x'; acsname[19] = 't'; acsname[20]='\0';
+
+ for(int i=10; i<16; i++) epsname[i] = date[i-10]; //creating file name for eps hk
+ epsname[16] = '.'; epsname[17] = 't'; epsname[18] = 'x'; epsname[19] = 't'; epsname[20]='\0';
+
+ printf("All filenames created\n"); //Debug statement
+}
+
+void writevaluesf(char* beaname, char* acsname, char* epsname, time_t seconds, SensorData* Sensor){
+ FILE* fp;
+ char time[7];
+ strftime(time, 7, "%H%M%S", localtime(&seconds)); //getting time from unix time
+
+ fp = fopen(beaname,"w");
+ if(fp == NULL) {
+ error("Could not open file for write\n");
+ }
+ else{
+ //fprintf(fp,"%s\n",time); //time stamping: Look for a better way
+ fwrite((*Sensor).Voltage, sizeof(float), BEANUM, fp); //needs to be changed
+ fclose(fp);
+ }
+
+ fp = fopen(acsname,"w");
+ if(fp == NULL) {
+ error("Could not open file for write\n");
+ }
+ else{
+ //fprintf(fp,"%s\n",time); //time stamping: Look for a better way
+ fwrite((*Sensor).Current, sizeof(float), ACSNUM, fp); //needs to be changed
+ fclose(fp);
+ }
+
+ fp = fopen(epsname,"w");
+ if(fp == NULL) {
+ error("Could not open file for write\n");
+ }
+ else{
+ //fprintf(fp,"%s\n",time); //time stamping: Look for a better way
+ fwrite((*Sensor).Temp, sizeof(float), EPSNUM, fp); //needs to be changed
+ fclose(fp);
+ }
+
+ printf("Writing over\n"); //Debug statement
+}
+
+//Function for debugging purposes
+void readvaluesff(char* beaname, char* acsname, char* epsname, SensorData* Sensor){
+ FILE* fpr; //debug only
+ float* readstr = (float*) malloc( sizeof(float) * 30); //reading back for debugging
+
+ fpr = fopen(beaname,"r");
+ if(fpr == NULL) {
+ error("Could not open file for read\n");
+ }
+ else{
+ fread(readstr, sizeof(float), 10, fpr);
+ }
+ fclose(fpr);
+
+ fpr = fopen(acsname,"r");
+ if(fpr == NULL) {
+ error("Could not open file for read\n");
+ }
+ else{
+ fread((readstr+10), sizeof(float), 10, fpr);
+ }
+ fclose(fpr);
+
+ fpr = fopen(epsname,"r");
+ if(fpr == NULL) {
+ error("Could not open file for read\n");
+ }
+ else{
+ fread((readstr+20), sizeof(float), 10, fpr);
+ }
+ fclose(fpr);
+
+ for(int i=0; i<30; i++)
+ printf("%f\n",readstr[i]);
+}
+*/
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sdcard.h Mon Sep 15 14:01:49 2014 +0000
@@ -0,0 +1,18 @@
+#include "mbed.h"
+/*#include "SDFileSystem.h"
+
+#define BEANUM 10
+#define ACSNUM 10
+#define EPSNUM 10
+
+/*struct SensorData { //will be changed
+ float Voltage[10];
+ float Current[10];
+ float Temp[10];
+};
+
+void writedummies(SensorData*); //will be removed
+void setfilenames(char*,char*,char*,time_t);
+void writevaluesf(char*,char*,char*,time_t,SensorData*);
+void readvaluesff(char*,char*,char*,SensorData*); //for debugging only
+*/
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tmtc.cpp Mon Sep 15 14:01:49 2014 +0000 @@ -0,0 +1,1 @@ +#include "tmtc.h"
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tmtc.h Mon Sep 15 14:01:49 2014 +0000 @@ -0,0 +1,2 @@ +//#include "mbed.h" +//#include "rtos.h" \ No newline at end of file