mirror of
https://github.com/eddyem/IR-controller.git
synced 2025-12-06 10:45:15 +03:00
modified client.c
This commit is contained in:
eddyem
parent
298d842352
commit
4f7419c715
@ -31,7 +31,8 @@
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#include <stdint.h> // int types
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#include <sys/time.h> // gettimeofday
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int zmon_period = 30; // monitor temperature each 30s
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#define BUFLEN 1024
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double t0; // start time
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FILE *fout = NULL; // file for messages duplicating
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@ -70,6 +71,11 @@ void quit(int ex_stat){
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* Open & setup TTY, terminal
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*/
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void tty_init(){
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// terminal without echo
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tcgetattr(STDIN_FILENO, &oldt);
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newt = oldt;
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newt.c_lflag &= ~(ICANON | ECHO);
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if(tcsetattr(STDIN_FILENO, TCSANOW, &newt) < 0) quit(-2);
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printf("\nOpen port...\n");
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if ((comfd = open(comdev,O_RDWR|O_NOCTTY|O_NONBLOCK)) < 0){
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fprintf(stderr,"Can't use port %s\n",comdev);
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@ -84,107 +90,86 @@ void tty_init(){
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tty.c_cc[VMIN] = 0; // non-canonical mode
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tty.c_cc[VTIME] = 5;
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if(ioctl(comfd,TCSETA,&tty) < 0) exit(-1); // set new mode
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// terminal without echo
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tcgetattr(STDIN_FILENO, &oldt);
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newt = oldt;
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newt.c_lflag &= ~(ICANON | ECHO);
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if(tcsetattr(STDIN_FILENO, TCSANOW, &newt) < 0) quit(-2);
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printf(" OK\n");
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}
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/**
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* Read character from console without echo
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* @return char readed
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*/
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int read_console(){
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int rb;
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struct timeval tv;
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int retval;
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fd_set rfds;
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tcsetattr(STDIN_FILENO, TCSANOW, &newt);
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FD_ZERO(&rfds);
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FD_SET(STDIN_FILENO, &rfds);
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tv.tv_sec = 0; tv.tv_usec = 10000;
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retval = select(1, &rfds, NULL, NULL, &tv);
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if(!retval) rb = 0;
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else {
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if(FD_ISSET(STDIN_FILENO, &rfds)) rb = getchar();
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else rb = 0;
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}
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tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
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return rb;
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}
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/**
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* getchar() without echo
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* wait until at least one character pressed
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* @return character readed
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*/
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int mygetchar(){ // аналог getchar() без необходимости жать Enter
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*
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int mygetchar(){
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int ret;
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do ret = read_console();
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while(ret == 0);
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return ret;
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}
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}*/
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/**
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* Read data from TTY
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* @param buff (o) - buffer for data read
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* @param length - buffer len
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* @return amount of readed bytes
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* read both tty & console
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* @param buff (o) - buffer for messages readed from tty
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* @param length (io) - buff's length (return readed len or 0)
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* @param rb (o) - byte readed from console or -1
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* @return 1 if something was readed here or there
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*/
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size_t read_tty(uint8_t *buff, size_t length){
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ssize_t L = 0;
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fd_set rfds;
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int read_tty_and_console(char *buff, size_t *length, int *rb){
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ssize_t L;
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struct timeval tv;
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int retval;
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int sel, retval = 0;
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fd_set rfds;
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FD_ZERO(&rfds);
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FD_SET(STDIN_FILENO, &rfds);
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FD_SET(comfd, &rfds);
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tv.tv_sec = 0; tv.tv_usec = 500000; // wait for 500ms
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retval = select(comfd + 1, &rfds, NULL, NULL, &tv);
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if (!retval) return 0;
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if(FD_ISSET(comfd, &rfds)){
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if((L = read(comfd, buff, length)) < 1) return 0;
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tv.tv_sec = 0; tv.tv_usec = 10000;
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sel = select(comfd + 1, &rfds, NULL, NULL, &tv);
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if(sel > 0){
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if(FD_ISSET(STDIN_FILENO, &rfds)){
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*rb = getchar();
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retval = 1;
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}else{
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*rb = -1;
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}
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return (size_t)L;
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if(FD_ISSET(comfd, &rfds)){
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if((L = read(comfd, buff, *length)) < 1){ // disconnect or other troubles
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fprintf(stderr, "USB error or disconnected!\n");
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quit(1);
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}else{
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if(L == 0){ // USB disconnected
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fprintf(stderr, "USB disconnected!\n");
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quit(1);
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}
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*length = (size_t) L;
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retval = 1;
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}
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}else{
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*length = 0;
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}
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}
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return retval;
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}
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void help(){
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printf("Use this commands:\n"
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"h\tShow this help\n"
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"q\tQuit\n"
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"t\tMonitor temperature on ZakWire\n"
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"v\tNon-verbose\n"
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"z\tGet ZakWire data\n"
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"V\tVerbose\n"
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);
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}
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#define dup_pr(...) do{printf(__VA_ARGS__); if(fout) fprintf(fout, __VA_ARGS__);}while(0)
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int zflag = 0; // monitor zakwire
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void con_sig(int rb){
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uint8_t cmd;
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char cmd;
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if(rb < 1) return;
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if(rb == 'q') quit(0); // q == exit
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switch(rb){
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cmd = (char) rb;
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write(comfd, &cmd, 1);
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/*switch(rb){
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case 'h':
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help();
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break;
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case 's':
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dup_pr("Stop ZakWire\n");
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zflag = 0;
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break;
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case 't':
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dup_pr("ZakWire thermal monitoring\n");
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zflag = 1;
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write(comfd, "v", 1);
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t0 = dtime() - zmon_period;
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break;
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default:
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cmd = (uint8_t) rb;
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write(comfd, &cmd, 1);
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}
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}*/
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}
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/**
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@ -193,11 +178,7 @@ void con_sig(int rb){
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* @param len - length of data in buffer (could be 2 or 4)
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* @return
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*/
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uint32_t get_int(uint8_t *buff, size_t len){
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/* int i;
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printf("read %zd bytes: ", len);
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for(i = 0; i < len; i++) printf("0x%x ", buff[i]);
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printf("\n");*/
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uint32_t get_int(char *buff, size_t len){
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if(len != 2 && len != 4){
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fprintf(stdout, "Bad data length!\n");
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return 0xffffffff;
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@ -209,9 +190,42 @@ uint32_t get_int(uint8_t *buff, size_t len){
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return data;
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}
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/**
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* Copy line by line buffer buff to file removing cmd starting from newline
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* @param buffer - data to put into file
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* @param cmd - symbol to remove from line startint (if found, change *cmd to (-1)
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* or NULL, (-1) if no command to remove
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*/
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void copy_buf_to_file(char *buffer, int *cmd){
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char *buff, *line, *ptr;
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if(!cmd || *cmd < 0){
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fprintf(fout, "%s", buffer);
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return;
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}
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buff = strdup(buffer), ptr = buff;
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do{
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if(!*ptr) break;
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if(ptr[0] == (char)*cmd){
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*cmd = -1;
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ptr++;
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if(ptr[0] == '\n') ptr++;
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if(!*ptr) break;
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}
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line = ptr;
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ptr = strchr(buff, '\n');
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if(ptr){
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*ptr++ = 0;
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//fprintf(fout, "%s\n", line);
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}//else
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//fprintf(fout, "%s", line); // no newline found in buffer
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fprintf(fout, "%s\n", line);
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}while(ptr);
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free(buff);
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}
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int main(int argc, char *argv[]){
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int rb;
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uint8_t buff[128];
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int rb, oldcmd = -1;
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char buff[BUFLEN+1];
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size_t L;
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if(argc == 2){
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fout = fopen(argv[1], "a");
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@ -229,34 +243,19 @@ int main(int argc, char *argv[]){
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setbuf(stdout, NULL);
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t0 = dtime();
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while(1){
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rb = read_console();
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if(rb > 0) con_sig(rb);
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L = read_tty(buff, 127);
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L = BUFLEN;
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if(read_tty_and_console(buff, &L, &rb)){
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if(rb > 0){
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con_sig(rb);
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oldcmd = rb;
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}
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if(L){
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buff[L] = 0;
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printf("TTY: %s\n", buff);
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if(fout) fprintf(fout, "%zd\t%s\n", time(NULL), buff);
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printf("%s", buff);
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if(fout){
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copy_buf_to_file(buff, &oldcmd);
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}
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if(zflag && dtime() - t0 > zmon_period){ // thermal monitoring
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t0 += zmon_period;
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char NUM[] = {'6', '5', '3'};
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char obuf[] = {'N', 0, 'z'};
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int i;
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double temper[3];
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for(i = 0; i < 3; i++){
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obuf[1] = NUM[i];
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if(3 != write(comfd, &obuf, 3)){
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perror("Can't write");
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quit(-1);
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}
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L = read_tty(buff, 127);
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//for(j = 0; j < 10; j++) // 10 tries to read data from USB
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// if((L = read_tty(buff, 127)) < 1) continue;
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uint32_t ans = get_int(buff, L);
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if(ans == 0xffffffff) temper[i] = -274.;
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else temper[i] = ((double)ans)/2047.*70. - 10.;
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}
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dup_pr("%zd\t%.2f\t%.2f\t%.2f\n", time(NULL), temper[0], temper[1], temper[2]);
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}
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}
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}
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@ -213,21 +213,25 @@ uint32_t read_AD7794(uint8_t channel){
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uint8_t dr;
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switch (N){
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case 0: // start: set channel
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//P("A0 ", uart1_send);
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if(!AD7794_set_channel(channel)){
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return 0; // 0 in return means error
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}
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break;
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case 1: // put ADC to a single conversion mode
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//P("A1 ", uart1_send);
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sendWord(MODE_REGISTER, SINGLE_MODE |
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U16(0x0f)); // the lowest speed;
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check_errR();
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break;
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case 2: // wait for data reading & check errors
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//P("A2", uart1_send);
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dr = check_data_ready();
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check_errR();
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if(!dr) return AD7794_NOTRDY;
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break;
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default: // last step -> return readed data
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//P("\r\n", uart1_send);
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N = 0;
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return read_ADC_data();
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}
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@ -33,4 +33,13 @@ void SysTick_init();
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void ADC_init();
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void ADC_calibrate_and_start();
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/*
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* One Wire interface
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*/
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// In case of using USART2 for 1-wire port, make corresponding change
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// and redefine pins in OW_Init
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//#define OW_USART_X USART2
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#define OW_USART_X USART3
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#endif // __HARDWARE_INI_H__
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Binary file not shown.
@ -35,6 +35,7 @@ uint32_t ad7794_values[TRD_NO];
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uint8_t doubleconv = 1; // ==0 to single conversion; 1 to double (with currents reversing)
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#define ADC_direct() setup_AD7794(EXTREFIN_1 | REF_DETECTION | UNIPOLAR_CODING, IEXC_DIRECT | IEXC_1MA)
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#define ADC_reverse() setup_AD7794(EXTREFIN_1 | REF_DETECTION | UNIPOLAR_CODING, IEXC_SWAPPED | IEXC_1MA)
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#define RESET_ADC() do{N = 0; ad7794_on = 0; step++; return; }while(0)
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/**
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* reads next value of voltage on TRD
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* function calls from anywhere
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@ -50,7 +51,10 @@ void read_next_TRD(){
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// "default" in switch will process last step
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switch (step){ // now we should do something depending on current step value
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case 0: // step 0: set address
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if(N == 0) AD7794_init(); // reset ADC in beginning of each set
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if(N == 0 || !ad7794_on) AD7794_init(); // reset ADC in beginning of each set
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//P("Step 0: read_next_TRD, N=", uart1_send);
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//print_int(N, uart1_send);
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//newline(uart1_send);
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GPIO_BSRR(GPIOC) = N << 6; // set address
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GPIO_BSRR(GPIOC) = GPIO10; // enable com
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N++; // and increment TRD counter
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@ -61,12 +65,12 @@ void read_next_TRD(){
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case 1: // step 1: prepare reading in 1st current direction or single reading
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if(!val0){ // 1st value isn't ready yet
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if(!ADC_direct()){ // error: we can't setup reading
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ad7794_values[N] = 0;
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ad7794_on = 0;
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step++;
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break;
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// ad7794_values[N] = 0;
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RESET_ADC(); // reset steps counter to re-initialize + mark ad7794_on = 0
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}
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val0 = AD7794_NOTRDY;
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val0 = read_AD7794(0);
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if(!val0) RESET_ADC();
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break;
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}
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if(val0 == AD7794_NOTRDY){ // data not ready yet
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val0 = read_AD7794(0);
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@ -74,21 +78,21 @@ void read_next_TRD(){
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// All OK, prepare second reading
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if(doubleconv){ // double conversion -> prepare
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if(!ADC_reverse()){ // we can't setup it, but we have 1st value
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val1 = val0;
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//ad7794_values[N] = val0 << 1; // double val0
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RESET_ADC();
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}else{
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val1 = read_AD7794(0); // process it later
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}
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}else{ // simply copy value instead of multiplying by 2
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val1 = val0;
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}
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}else{ // val0 ready, check val1
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if(doubleconv && !val1){ // error
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ad7794_values[N] = 0;
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ad7794_on = 0;
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ad7794_values[N] = val0 << 1;
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step++;
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break;
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}
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if(doubleconv && (val1 == AD7794_NOTRDY)){ // val1 not ready yet
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}else{ // val0 ready, check val1; we can go here only when doubleconv != 0
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if(!val1){ // error: on previous step we had to get some value or AD7794_NOTRDY
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//ad7794_values[N] = 0;
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RESET_ADC();
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}
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if(val1 == AD7794_NOTRDY){ // val1 not ready yet
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val1 = read_AD7794(0);
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}else{ // all OK, we can put sum of val0 & val1 into array
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ad7794_values[N] = val0 + val1;
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@ -149,6 +153,8 @@ int main(){
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SPI1_init();
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OW_Init();
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// wait a little and then turn on USB pullup
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for (i = 0; i < 0x800000; i++)
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__asm__("nop");
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@ -161,17 +167,17 @@ int main(){
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parce_incoming_buf(usbdatabuf, usbdatalen, usb_send);
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usbdatalen = 0; // all data have been processed - prepare to get new portion
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}
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check_and_parce_UART(); // also check data in UART buffers
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check_and_parce_UART(USART1); // also check data in UART buffers
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if(ad7794_on){
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if(Timer != lastTRDread){ // run this not more than once in 1ms
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lastTRDread = Timer;
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read_next_TRD();
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}
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}
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if(Timer - Old_timer > 999){ // write out time in seconds
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if(Timer - Old_timer > 999){ // one-second cycle
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Old_timer += 1000;
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gpio_toggle(GPIOC, GPIO12); // toggle LED
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if(!ad7794_on) AD7794_init(); // try to init ADC
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if(!ad7794_on) AD7794_init(); // try to init ADC if it doesn't work
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//print_int(Timer/1000, usb_send);
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}else if(Timer < Old_timer){ // Timer overflow
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Old_timer = 0;
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@ -39,6 +39,7 @@
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#include "user_proto.h"
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#include "AD7794.h"
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#include "onewire.h"
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#define _U_ __attribute__((__unused__))
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#define U8(x) ((uint8_t) x)
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196
with_opencm3/onewire.c
Normal file
196
with_opencm3/onewire.c
Normal file
@ -0,0 +1,196 @@
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/*
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* onewire.c - functions to work with 1-wire devices
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
||||
* MA 02110-1301, USA.
|
||||
*/
|
||||
#include "onewire.h"
|
||||
|
||||
#define OW_0 0x00
|
||||
#define OW_1 0xff
|
||||
#define OW_R 0xff
|
||||
#define OW_RST 0xf0
|
||||
|
||||
|
||||
// In/Out buffer
|
||||
uint8_t ow_buf[8];
|
||||
/**
|
||||
* this function sends bits of ow_byte (LSB first) to 1-wire line
|
||||
* @param ow_byte - byte to convert
|
||||
* @param Nbits - number of bits to send
|
||||
*/
|
||||
void OW_SendBits(uint8_t ow_byte, uint8_t Nbits){
|
||||
uint8_t i, byte;
|
||||
if(Nbits == 0) return;
|
||||
if(Nbits > 8) Nbits = 8;
|
||||
for(i = 0; i < Nbits; i++){
|
||||
if(ow_byte & 0x01){
|
||||
byte = OW_1;
|
||||
}else{
|
||||
byte = OW_0;
|
||||
}
|
||||
fill_uart_buff(OW_USART_X, byte); // send next "bit"
|
||||
ow_byte = ow_byte >> 1;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Inverce conversion - read data (not more than 8 b
|
||||
*/
|
||||
uint8_t OW_ReadByte(){
|
||||
UART_buff *curbuff = get_uart_buffer(OW_USART_X);
|
||||
uint8_t ow_byte = 0, i, L, *buf;
|
||||
if(!curbuff || !(L = curbuff->end)) return 0; // no data?
|
||||
if(L > 8) L = 8; // forget all other data
|
||||
buf = curbuff->buf;
|
||||
for(i = 0; i < L; i++, buf++){
|
||||
ow_byte = ow_byte >> 1; // prepare for next bit filling
|
||||
if(*buf == OW_1){
|
||||
ow_byte |= 0x80; // MSB = 1
|
||||
}
|
||||
}
|
||||
return ow_byte >> (8 - L); // shift to the end: L could be != 8 ???
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Configure peripherial ports (USART2) for 1-wire
|
||||
*/
|
||||
void OW_Init(){
|
||||
struct usb_cdc_line_coding owlc = {
|
||||
.dwDTERate = 115200,
|
||||
.bCharFormat = USB_CDC_1_STOP_BITS,
|
||||
.bParityType = USB_CDC_NO_PARITY,
|
||||
.bDataBits = 8,
|
||||
};
|
||||
UART_init(OW_USART_X);
|
||||
UART_setspeed(OW_USART_X, &owlc);
|
||||
}
|
||||
|
||||
/*
|
||||
* 1-wire reset
|
||||
* Reset procedure: USART settings are 9600,8,n,1,
|
||||
* send 0xf0 then check what we get
|
||||
* if not 0xf0 line is busy.
|
||||
* Other operations work with next USART settings: 115200,8,n,1
|
||||
*
|
||||
* return 1 in case of 1-wire devices present; otherwise return 0
|
||||
*/
|
||||
uint8_t OW_Reset() {
|
||||
uint8_t ow_presence;
|
||||
UART_buff *curbuff;
|
||||
// change speed to 9600
|
||||
usart_set_baudrate(OW_USART_X, 9600);
|
||||
//USART_ClearFlag(OW_USART_X, USART_FLAG_TC);
|
||||
fill_uart_buff(OW_USART_X, OW_RST); // send 1 byte data
|
||||
// wait for end of transmission
|
||||
while(!(USART_SR(OW_USART_X) & USART_SR_TC));
|
||||
curbuff = get_uart_buffer(OW_USART_X);
|
||||
if(!curbuff || !(curbuff->end)) return 0; // error reading
|
||||
curbuff->end = 0; // zero counter
|
||||
ow_presence = curbuff->buf[0];
|
||||
// change speed back
|
||||
usart_set_baudrate(OW_USART_X, 115200);
|
||||
// if there is any device on bus, it will pull it, so we'll get not 0xf0
|
||||
if(ow_presence != OW_RST){
|
||||
return 1;
|
||||
}
|
||||
// we get 0xf0 -> there's nothing on the bus
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Procedure of 1-wire communications
|
||||
* variables:
|
||||
* sendReset - send RESET before transmission
|
||||
* command - bytes sent to the bus (if we want to read, send OW_READ_SLOT)
|
||||
* cLen - command buffer length (how many bytes to send)
|
||||
* data - pointer for reading buffer (if reading needed)
|
||||
* readStart - first byte to read (starts from 0) or OW_NO_READ (not read)
|
||||
*
|
||||
* return 1 if succeed, 0 if failure
|
||||
*/
|
||||
uint8_t OW_Send(uint8_t sendReset, uint8_t *command, uint8_t cLen,
|
||||
uint8_t *data, uint8_t dLen, uint8_t readStart) {
|
||||
// if reset needed - send RESET and check bus
|
||||
if(sendReset){
|
||||
if(OW_Reset() == 0){
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
while(cLen > 0){
|
||||
OW_SendBits(*command, 8);
|
||||
command++;
|
||||
cLen--;
|
||||
// wait for EOT
|
||||
while(!(USART_SR(OW_USART_X) & USART_SR_TC));
|
||||
// put data from bus into user buffer
|
||||
if(readStart == 0 && dLen > 0){
|
||||
*data = OW_ReadByte();
|
||||
data++;
|
||||
dLen--;
|
||||
}else{
|
||||
if(readStart != OW_NO_READ){
|
||||
readStart--;
|
||||
}
|
||||
}
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* scan 1-wire bus
|
||||
* num - max number of devices
|
||||
* buf - array for devices' ID's (8*num bytes)
|
||||
* return amount of founded devices
|
||||
*/
|
||||
uint8_t OW_Scan(uint8_t *buf, uint8_t num) {
|
||||
unsigned long path,next,pos;
|
||||
uint8_t bit,chk;
|
||||
uint8_t cnt_bit, cnt_byte, cnt_num;
|
||||
path=0;
|
||||
cnt_num=0;
|
||||
do{
|
||||
//(issue the 'ROM search' command)
|
||||
if( 0 == OW_WriteCmd(OW_SEARCH_ROM) ) return 0;
|
||||
next=0; // next path to follow
|
||||
pos=1; // path bit pointer
|
||||
for(cnt_byte = 0; cnt_byte != 8; cnt_byte++){
|
||||
buf[cnt_num*8 + cnt_byte] = 0;
|
||||
for(cnt_bit = 0; cnt_bit != 8; cnt_bit++){
|
||||
//(read two bits, 'bit' and 'chk', from the 1-wire bus)
|
||||
OW_SendBits(OW_R, 2);
|
||||
bit = OW_ReadByte();
|
||||
chk = bit & 0x02; // bit 1
|
||||
bit = bit & 0x01; // bit 0
|
||||
//bit = (ow_buf[0] == OW_1); chk = (ow_buf[1] == OW_1);
|
||||
if(bit && chk) return 0; // error
|
||||
if(!bit && !chk){ // collision, both are zero
|
||||
if (pos & path) bit = 1; // if we've been here before
|
||||
else next = (path&(pos-1)) | pos; // else, new branch for next
|
||||
pos <<= 1;
|
||||
}
|
||||
//(save this bit as part of the current ROM value)
|
||||
if (bit) buf[cnt_num*8 + cnt_byte]|=(1<<cnt_bit);
|
||||
//(write 'bit' to the 1-wire bus)
|
||||
OW_SendBits(bit, 1);
|
||||
}
|
||||
}
|
||||
//(output the just-completed ROM value)
|
||||
path=next;
|
||||
cnt_num++;
|
||||
}while(path && cnt_num < num);
|
||||
return cnt_num;
|
||||
}
|
||||
114
with_opencm3/onewire.h
Normal file
114
with_opencm3/onewire.h
Normal file
@ -0,0 +1,114 @@
|
||||
/*
|
||||
* onewire.h
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
||||
* MA 02110-1301, USA.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
#ifndef __ONEWIRE_H__
|
||||
#define __ONEWIRE_H__
|
||||
|
||||
#include "main.h"
|
||||
#include "hardware_ini.h"
|
||||
|
||||
// 1-wire status
|
||||
#define OW_OK (1)
|
||||
#define OW_ERROR (2)
|
||||
#define OW_NO_DEVICE (3)
|
||||
|
||||
#define OW_NO_READ (0xff)
|
||||
|
||||
#define OW_READ_SLOT (uint8_t*)"0xff"
|
||||
|
||||
void OW_Init();
|
||||
uint8_t OW_Send(uint8_t sendReset, uint8_t *command, uint8_t cLen,
|
||||
uint8_t *data, uint8_t dLen, uint8_t readStart);
|
||||
uint8_t OW_Scan(uint8_t *buf, uint8_t num);
|
||||
|
||||
// shortcuts for functions
|
||||
// only send message b wich length is c with RESET flag a
|
||||
#define OW_SendOnly(a,b,c) OW_Send(a, b, c, (void*)0, 0, OW_NO_READ)
|
||||
// send 1 command (with bus reset)
|
||||
#define OW_WriteCmd(cmd) OW_Send(1, cmd, 1, (void*)0, 0, OW_NO_READ)
|
||||
// send 1 function (without bus reset)
|
||||
#define OW_WriteFn(cmd) OW_Send(0, cmd, 1, (void*)0, 0, OW_NO_READ)
|
||||
|
||||
/*
|
||||
* thermometer identificator is: 8bits CRC, 48bits serial, 8bits device code (10h)
|
||||
* Critical temperatures is T_H and T_L
|
||||
* T_L is lowest allowed temperature
|
||||
* T_H is highest -//-
|
||||
* format T_H and T_L: 1bit sigh + 7bits of data
|
||||
*/
|
||||
|
||||
/*
|
||||
* thermometer commands (DS18S20)\
|
||||
* send them with bus reset!
|
||||
*/
|
||||
// find devices
|
||||
#define T_SEARCH_ROM (0xf0)
|
||||
#define OW_SEARCH_ROM (uint8_t*)"\xf0"
|
||||
// read device (when it is alone on the bus)
|
||||
#define T_READ_ROM (0x33)
|
||||
#define OW_READ_ROM (uint8_t*)"\x33"
|
||||
// send device ID (after this command - 8 bytes of ID)
|
||||
#define T_MATCH_ROM (0x55)
|
||||
#define OW_MATCH_ROM (uint8_t*)"\x55"
|
||||
// broadcast command
|
||||
#define T_SKIP_ROM (0xcc)
|
||||
#define OW_SKIP_ROM (uint8_t*)"\xcc"
|
||||
// find devices with critical conditions
|
||||
#define T_ALARM_SEARCH (0xec)
|
||||
#define OW_ALARM_SEARCH (uint8_t*)"\xec"
|
||||
/*
|
||||
* thermometer functions
|
||||
* send them without bus reset!
|
||||
*/
|
||||
// start themperature reading
|
||||
#define T_CONVERT_T (0x44)
|
||||
#define OW_CONVERT_T (uint8_t*)"\x44"
|
||||
// write critical temperature to device's RAM
|
||||
#define T_SCRATCHPAD (0x4e)
|
||||
#define OW_SCRATCHPAD (uint8_t*)"\x4e"
|
||||
// read whole device flash
|
||||
#define T_READ_SCRATCHPAD (0xbe)
|
||||
#define OW_READ_SCRATCHPAD (uint8_t*)"\xbe"
|
||||
// copy critical themperature from device's RAM to its EEPROM
|
||||
#define T_COPY_SCRATCHPAD (0x48)
|
||||
#define OW_COPY_SCRATCHPAD (uint8_t*)"\x48"
|
||||
// copy critical themperature from EEPROM to RAM (when power on this operation runs automatically)
|
||||
#define T_RECALL_E2 (0xb8)
|
||||
#define OW_RECALL_E2 (uint8_t*)"\xb8"
|
||||
// check whether there is devices wich power up from bus
|
||||
#define T_READ_POWER_SUPPLY (0xb4)
|
||||
#define OW_READ_POWER_SUPPLY (uint8_t*)"\xb4"
|
||||
|
||||
|
||||
/*
|
||||
* RAM register:
|
||||
* 0 - themperature: 1 ADU == 0.5 degrC
|
||||
* 1 - sign (0 - T>0 degrC ==> T=byte0; 1 - T<0 degrC ==> T=byte0-0xff+1)
|
||||
* 2 - T_H
|
||||
* 3 - T_L
|
||||
* 4 - 0xff (reserved)
|
||||
* 5 - 0xff (reserved)
|
||||
* 6 - COUNT_REMAIN (0x0c)
|
||||
* 7 - COUNT PER DEGR (0x10)
|
||||
* 8 - CRC
|
||||
*/
|
||||
|
||||
|
||||
#endif // __ONEWIRE_H__
|
||||
@ -24,15 +24,9 @@
|
||||
#include "cdcacm.h"
|
||||
|
||||
// Buffers for Tx
|
||||
typedef struct {
|
||||
uint8_t buf[UART_TX_DATA_SIZE];
|
||||
uint8_t start; // index from where to start reading
|
||||
uint8_t end; // index from where to start writing
|
||||
} UART_buff;
|
||||
static UART_buff TX_buffer[3]; // Tx buffers for all three ports
|
||||
static UART_buff RX_buffer[3]; // Rx buffers for all three ports
|
||||
|
||||
void fill_uart_buff(uint32_t UART, uint8_t byte);
|
||||
void fill_uart_RXbuff(uint32_t UART, uint8_t byte);
|
||||
|
||||
/**
|
||||
@ -242,32 +236,49 @@ void uart3_send(uint8_t byte){
|
||||
fill_uart_buff(USART3, byte);
|
||||
}
|
||||
|
||||
UART_buff *get_uart_buffer(uint32_t UART){
|
||||
switch(UART){
|
||||
case USART1:
|
||||
return &RX_buffer[0];
|
||||
break;
|
||||
case USART2:
|
||||
return &RX_buffer[1];
|
||||
break;
|
||||
case USART3:
|
||||
return &RX_buffer[2];
|
||||
break;
|
||||
default: // error - return
|
||||
return NULL;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check buffers for non-empty & run parsing function
|
||||
* @param UART - device to check
|
||||
*/
|
||||
void check_and_parce_UART(){
|
||||
int i;
|
||||
void check_and_parce_UART(uint32_t UART){
|
||||
sendfun sf;
|
||||
UART_buff *curbuff;
|
||||
UART_buff *curbuff = get_uart_buffer(UART);
|
||||
uint8_t datalen; // length of data in buffer - here we use param "end"
|
||||
for(i = 0; i < 3; i++){
|
||||
curbuff = &RX_buffer[i];
|
||||
datalen = curbuff->end;
|
||||
if(!datalen) continue; // buffer is empty
|
||||
// buffer isn't empty: process data in it
|
||||
switch (i){
|
||||
case 0:
|
||||
if(!curbuff) return;
|
||||
switch(UART){
|
||||
case USART1:
|
||||
sf = uart1_send;
|
||||
break;
|
||||
case 1:
|
||||
case USART2:
|
||||
sf = uart2_send;
|
||||
break;
|
||||
default:
|
||||
case USART3:
|
||||
sf = uart3_send;
|
||||
break;
|
||||
default: // error - return
|
||||
return;
|
||||
}
|
||||
datalen = curbuff->end;
|
||||
if(!datalen) return; // buffer is empty
|
||||
parce_incoming_buf((char*)curbuff->buf, datalen, sf); // process data
|
||||
curbuff->end = 0; // and zero counter
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
@ -26,14 +26,23 @@
|
||||
// Size of buffers
|
||||
#define UART_TX_DATA_SIZE 64
|
||||
|
||||
typedef struct {
|
||||
uint8_t buf[UART_TX_DATA_SIZE];
|
||||
uint8_t start; // index from where to start reading
|
||||
uint8_t end; // index from where to start writing
|
||||
} UART_buff;
|
||||
|
||||
void UART_init(uint32_t UART);
|
||||
void UART_setspeed(uint32_t UART, struct usb_cdc_line_coding *linecoding);
|
||||
|
||||
void fill_uart_buff(uint32_t UART, uint8_t byte);
|
||||
void uart1_send(uint8_t byte);
|
||||
void uart2_send(uint8_t byte);
|
||||
void uart3_send(uint8_t byte);
|
||||
|
||||
void check_and_parce_UART();
|
||||
void check_and_parce_UART(uint32_t UART);
|
||||
|
||||
UART_buff *get_uart_buffer(uint32_t UART);
|
||||
|
||||
|
||||
#endif // __UART_H__
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user