sakthi priya amirtharaj / Mbed 2 deprecated slave_working1_1_reset_test

slave debug

Dependencies:   mbed-rtos mbed

Fork of slave_working1_1_reset_test by green rosh

main.cpp@10:f2a8d9ac49d6, 2015-01-20 (annotated)

Committer:
sakthipriya
Date:
Tue Jan 20 16:12:18 2015 +0000
Revision:
10:f2a8d9ac49d6
Parent:
9:baf5de5828c9 
slave debug

Who changed what in which revision?

UserRevisionLine numberNew contents of line
viswachaitanya 0:24e80ff2c7b1 1 #include "mbed.h"
greenroshks 4:133b49d51b18 2 #include "rtos.h"
viswachaitanya 0:24e80ff2c7b1 3
viswachaitanya 0:24e80ff2c7b1 4 void write_to_master(char); //function to write data to master
greenroshks 4:133b49d51b18 5 Thread * ptr_t_i2c;
viswachaitanya 0:24e80ff2c7b1 6 I2CSlave slave(D14,D15); //configuring pins p27, p28 as I2Cslave
viswachaitanya 0:24e80ff2c7b1 7 Serial pc (USBTX,USBRX);
greenroshks 2:458f9e603814 8 InterruptIn interrupt(D9);
sakthipriya 8:04b912dc2443 9 InterruptIn master_reset(D11);
greenroshks 5:ce0bb4174ca4 10 DigitalOut data_ready(D10);
greenroshks 5:ce0bb4174ca4 11 int i2c_status=0; //read/write mode for i2c 0 : write2slave, 1 : write2master
sakthipriya 8:04b912dc2443 12 int reset=0;
sakthipriya 8:04b912dc2443 13 int temp;
sakthipriya 8:04b912dc2443 14
greenroshks 4:133b49d51b18 15
greenroshks 4:133b49d51b18 16 typedef struct
greenroshks 2:458f9e603814 17 {
greenroshks 4:133b49d51b18 18 char data; // To avoid dynamic memory allocation
greenroshks 4:133b49d51b18 19 int length;
greenroshks 4:133b49d51b18 20 }i2c_data;
viswachaitanya 0:24e80ff2c7b1 21
greenroshks 4:133b49d51b18 22 Mail<i2c_data,16> i2c_data_receive;
greenroshks 4:133b49d51b18 23 Mail<i2c_data,16> i2c_data_send;
sakthipriya 10:f2a8d9ac49d6 24
sakthipriya 8:04b912dc2443 25
sakthipriya 10:f2a8d9ac49d6 26 int receive_status =0;
greenroshks 5:ce0bb4174ca4 27 void FUNC_I2C_WRITE2CDMS(char *data, int length=1)
greenroshks 4:133b49d51b18 28 {
raizel_varun 6:8aea752c6eda 29 int slave_status = 1;
sakthipriya 10:f2a8d9ac49d6 30 // printf("\nData is %c\n\r",*data);
sakthipriya 10:f2a8d9ac49d6 31
sakthipriya 10:f2a8d9ac49d6 32 slave.address(0x20);
sakthipriya 10:f2a8d9ac49d6 33 unsigned char* add_reg = (unsigned char*)0x40067000;
sakthipriya 10:f2a8d9ac49d6 34 unsigned char* data_reg = (unsigned char*)0x40067004;
sakthipriya 10:f2a8d9ac49d6 35 unsigned char* status_reg = (unsigned char*)0x40067003;
sakthipriya 10:f2a8d9ac49d6 36 unsigned char* c1_reg = (unsigned char*)0x40067002;
sakthipriya 10:f2a8d9ac49d6 37 unsigned char* c2_reg = (unsigned char*)0x40067005;
sakthipriya 10:f2a8d9ac49d6 38 unsigned char* freq_reg = (unsigned char*)0x40067001;
greenroshks 9:baf5de5828c9 39 while(slave_status && interrupt ==1)
sakthipriya 10:f2a8d9ac49d6 40 {
sakthipriya 10:f2a8d9ac49d6 41 //wait(2);
sakthipriya 10:f2a8d9ac49d6 42 receive_status = slave.receive();
sakthipriya 10:f2a8d9ac49d6 43
sakthipriya 10:f2a8d9ac49d6 44 if( receive_status==1)
greenroshks 2:458f9e603814 45 {
sakthipriya 10:f2a8d9ac49d6 46 // printf("\nslave receive b4: \n");
greenroshks 5:ce0bb4174ca4 47 slave_status=slave.write(data,length);
sakthipriya 10:f2a8d9ac49d6 48 // printf("\nData sent to CDMS is %c\n\r",*data);
sakthipriya 10:f2a8d9ac49d6 49 // printf("\n\r write");
sakthipriya 10:f2a8d9ac49d6 50 //printf("\nslave receive after: %d \n",slave.receive());
greenroshks 2:458f9e603814 51
viswachaitanya 0:24e80ff2c7b1 52 }
sakthipriya 10:f2a8d9ac49d6 53 else if( receive_status==3 || receive_status==2)
sakthipriya 8:04b912dc2443 54 {
sakthipriya 8:04b912dc2443 55 slave_status=slave.read(data,length);
sakthipriya 10:f2a8d9ac49d6 56 // printf("\n\r read");
sakthipriya 8:04b912dc2443 57 }
sakthipriya 10:f2a8d9ac49d6 58 //printf("\n \r done while loop %d \n",slave.receive());
sakthipriya 10:f2a8d9ac49d6 59 //printf("\n\r ahoy drhghhhhhhhhhhh\n");
sakthipriya 10:f2a8d9ac49d6 60 printf("\n\r %d %d %d %d %d \n",*data_reg,*status_reg,*c1_reg,*c2_reg,*freq_reg);
sakthipriya 8:04b912dc2443 61
greenroshks 2:458f9e603814 62 }
sakthipriya 8:04b912dc2443 63 printf("\ndone\n\r");
greenroshks 4:133b49d51b18 64
greenroshks 2:458f9e603814 65 }
greenroshks 2:458f9e603814 66
greenroshks 4:133b49d51b18 67 void T_I2C_BAE(void const * args)
greenroshks 2:458f9e603814 68 {
greenroshks 4:133b49d51b18 69 char data_send,data_receive;
greenroshks 4:133b49d51b18 70 while(1)
greenroshks 4:133b49d51b18 71 {
greenroshks 4:133b49d51b18 72 Thread::signal_wait(0x1);
sakthipriya 8:04b912dc2443 73 //i2c_status = temp;
sakthipriya 8:04b912dc2443 74 //wait(0.5);
sakthipriya 8:04b912dc2443 75 printf("\n entered thread\n\r");
sakthipriya 8:04b912dc2443 76 if(i2c_status == 0 && reset !=1)
greenroshks 5:ce0bb4174ca4 77 {
greenroshks 5:ce0bb4174ca4 78
greenroshks 5:ce0bb4174ca4 79 FUNC_I2C_WRITE2CDMS(&data_receive);
greenroshks 5:ce0bb4174ca4 80 i2c_data * i2c_data_r = i2c_data_receive.alloc();
greenroshks 5:ce0bb4174ca4 81 i2c_data_r->data = data_receive;
greenroshks 5:ce0bb4174ca4 82 i2c_data_r->length = 1;
greenroshks 5:ce0bb4174ca4 83 i2c_data_receive.put(i2c_data_r);
sakthipriya 8:04b912dc2443 84 printf("\n Data received from CDMS is %c\n\r",data_receive);
sakthipriya 8:04b912dc2443 85 i2c_data_receive.free(i2c_data_r); // This has to be done from a differen thread
raizel_varun 6:8aea752c6eda 86
greenroshks 5:ce0bb4174ca4 87 }
sakthipriya 8:04b912dc2443 88 else if(i2c_status ==1 && reset !=1)
greenroshks 5:ce0bb4174ca4 89 {
greenroshks 5:ce0bb4174ca4 90 osEvent evt = i2c_data_send.get();
greenroshks 5:ce0bb4174ca4 91 if (evt.status == osEventMail)
greenroshks 5:ce0bb4174ca4 92 {
greenroshks 5:ce0bb4174ca4 93 i2c_data *i2c_data_s = (i2c_data*)evt.value.p;
greenroshks 5:ce0bb4174ca4 94 data_send = i2c_data_s -> data;
sakthipriya 10:f2a8d9ac49d6 95 //printf("\n1.Data is %c\n\r",data_send);
greenroshks 5:ce0bb4174ca4 96 FUNC_I2C_WRITE2CDMS(&data_send);
sakthipriya 8:04b912dc2443 97 printf("\nData sent to CDMS is %c\n\r",data_send);
greenroshks 5:ce0bb4174ca4 98 i2c_data_send.free(i2c_data_s);
greenroshks 5:ce0bb4174ca4 99 i2c_status = 0;
sakthipriya 8:04b912dc2443 100 //temp = i2c_status;
greenroshks 5:ce0bb4174ca4 101 }
raizel_varun 6:8aea752c6eda 102 }
greenroshks 9:baf5de5828c9 103
greenroshks 9:baf5de5828c9 104 data_ready=0;
greenroshks 4:133b49d51b18 105 }
greenroshks 2:458f9e603814 106 }
greenroshks 4:133b49d51b18 107
greenroshks 4:133b49d51b18 108 void FUNC_INT()
greenroshks 4:133b49d51b18 109 {
sakthipriya 8:04b912dc2443 110 reset = 0;
greenroshks 4:133b49d51b18 111 ptr_t_i2c->signal_set(0x1);
sakthipriya 7:debeb7070a54 112
greenroshks 4:133b49d51b18 113 }
sakthipriya 7:debeb7070a54 114
sakthipriya 8:04b912dc2443 115 void FUNC_RESET()
sakthipriya 8:04b912dc2443 116 {
sakthipriya 8:04b912dc2443 117 reset = 1;
sakthipriya 8:04b912dc2443 118 }
sakthipriya 8:04b912dc2443 119
sakthipriya 7:debeb7070a54 120 void ir2master()
sakthipriya 7:debeb7070a54 121 {
sakthipriya 8:04b912dc2443 122
sakthipriya 8:04b912dc2443 123 char data='a';
greenroshks 9:baf5de5828c9 124 //data_ready=0;
sakthipriya 7:debeb7070a54 125 data = pc.getc();
greenroshks 9:baf5de5828c9 126
sakthipriya 8:04b912dc2443 127 reset =0;
sakthipriya 7:debeb7070a54 128 i2c_status=1;
sakthipriya 7:debeb7070a54 129 i2c_data * i2c_data_s = i2c_data_send.alloc();
sakthipriya 7:debeb7070a54 130 i2c_data_s->data = data;
sakthipriya 7:debeb7070a54 131 i2c_data_s->length = 1;
sakthipriya 7:debeb7070a54 132 i2c_data_send.put(i2c_data_s);
sakthipriya 7:debeb7070a54 133 data_ready=1;
sakthipriya 8:04b912dc2443 134 //temp = i2c_status;
sakthipriya 7:debeb7070a54 135 }
sakthipriya 7:debeb7070a54 136
greenroshks 4:133b49d51b18 137
greenroshks 4:133b49d51b18 138
greenroshks 4:133b49d51b18 139
raizel_varun 6:8aea752c6eda 140 int main()
raizel_varun 6:8aea752c6eda 141 {
sakthipriya 8:04b912dc2443 142 printf("\n slave started\n\r");
raizel_varun 6:8aea752c6eda 143
greenroshks 4:133b49d51b18 144 ptr_t_i2c = new Thread(T_I2C_BAE);
sakthipriya 8:04b912dc2443 145 master_reset.fall(&FUNC_RESET);
greenroshks 4:133b49d51b18 146 interrupt.rise(&FUNC_INT);
greenroshks 2:458f9e603814 147 while(1)
greenroshks 2:458f9e603814 148 {
sakthipriya 7:debeb7070a54 149 ir2master();
greenroshks 5:ce0bb4174ca4 150
greenroshks 2:458f9e603814 151 }
raizel_varun 6:8aea752c6eda 152
raizel_varun 6:8aea752c6eda 153 }
raizel_varun 6:8aea752c6eda 154
raizel_varun 6:8aea752c6eda 155
raizel_varun 6:8aea752c6eda 156
raizel_varun 6:8aea752c6eda 157