Team Walter
PICO I2C FW
Dependencies: USBDevice
Diff: main.cpp
- Revision:
- 22:ee0d36d534cd
- Parent:
- 21:0f358a702561
- Child:
- 23:9bcf097cbfc2
--- a/main.cpp Tue Sep 25 23:35:07 2018 +0000
+++ b/main.cpp Fri Feb 08 16:59:34 2019 +0000
@@ -1,66 +1,18 @@
#include "mbed.h"
-#include "SDFileSystem.h"
-#include "max32630fthr.h"
#include "USBSerial.h"
-#include <ctype.h>
-
-#define PERIOD 10 // Logging period in seconds
-
-//OT07 Registers
-#define OT07_STATUS 0x00 // OT07 status regiter
-#define OT07_INT_EN 0x01 // OT07 Interrupt Enable
-#define OT07_FIFO_W 0x04 // OT07 FIFO Write Pointer
-#define OT07_FIFO_R 0x05 // OT07 FIFO Read Pointer
-#define OT07_FIFO_OF 0x06 // OT07 FIFO Overflow Counter
-#define OT07_FIFO_COUNT 0x07 // OT07 FIFO Data Count
-#define OT07_FIFO_DATA 0x08 // OT07 FIFO Data
-#define OT07_FIFO_CNFG1 0x09 // OT07 FIFO Configuration 1 (FIFO_A_FULL)
-#define OT07_FIFO_CNFG2 0x0A // OT07 FIFO Configuration 2
-#define OT07_SYS 0x0C // OT07 System Configuration
-#define OT07_ALARM_HIGH_MSB 0x10 // OT07 Alarm High MSB
-#define OT07_ALARM_HIGH_LSB 0x11 // OT07 Alarm High LSB
-#define OT07_ALARM_LOW_MSB 0x12 // OT07 Alarm Low MSB
-#define OT07_ALARM_LOW_LSB 0x13 // OT07 Alarm LOW LSB
-#define OT07_ADC_SETUP 0x14 // OT07 Temp Seneor Setup (ADC_RES[7:6]) & Convert Temperature [0]
-#define OT07_GPIO_SETUP 0x20 // OT07 GPIO Setup, sets GPIO modes
-#define OT07_GPIO_CTRL 0x21 // OT07 GPIO control
-#define OT07_ROM_ID 0x30 // OT07 ROM_ID address of LSB?
-
-
-#define MAX_DEVICES 64 // Maximum number of rom devices allowed
-#define ID_LENGTH 8 // Rom ID length in bytes
-
#define BS 8 // ASCII Back Space
#define CR 13 // ASCII Carriage Return
-struct OT07_struct {
- char rom_id[ID_LENGTH]; // device 8 byte ROM ID
- char I2C_address; // I2C addess, based on GPIO0 and GPIO1 at power up
-};
-
-const char* settings_file = "/sd/settings.txt";
-const char* log_file = "/sd/MAX30207Log.csv";
+#define SLAVE_ADDRESS 0x50
//global variable
-//******************** init Feather Boared Hardware ***********************
-
-MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
-
-//microSD logging file system setup
-SDFileSystem sd(P0_5, P0_6, P0_4, P0_7, "sd"); // mosi, miso, sclk, cs
-
-//SD card insertion detection pin
-DigitalIn SDDetect(P2_2, PullUp);
-InterruptIn SDInsert(P2_2);
-
-
// Virtual serial port over USB
USBSerial pc(0x0B6A, 0x0042, 0x0001, false);
// I2C setup
-I2C i2c(P3_4,P3_5); // P3_4 -> I2C1_SDA, P3_5-> I2C1_SCL
+I2C i2c(P1_6,P1_7); // P3_4 -> I2C1_SDA, P3_5-> I2C1_SCL
//Timer setup
Ticker timer_1; // timer for blinking led heartbeat
@@ -80,7 +32,6 @@
InterruptIn button(SW1);
-
void LED_blink_callback(){ // LED Heart beat
led_toggle_flag = !led_toggle_flag;
@@ -137,75 +88,26 @@
tick_flag = true;
}
-void btn_pressed() //button pressed isr
-{
- button_flag = true;
-}
-
-void sd_insert() //sd_insert pressed isr
-{
- sd_insert_flag = true;
-}
-
-
// *****************************************************************************
-// Define CRC-8 Table
-// *****************************************************************************
-
-static unsigned char crc_table[] = {
- 0, 94,188,226, 97, 63,221,131,194,156,126, 32,163,253, 31, 65,
- 157,195, 33,127,252,162, 64, 30, 95, 1,227,189, 62, 96,130,220,
- 35,125,159,193, 66, 28,254,160,225,191, 93, 3,128,222, 60, 98,
- 190,224, 2, 92,223,129, 99, 61,124, 34,192,158, 29, 67,161,255,
- 70, 24,250,164, 39,121,155,197,132,218, 56,102,229,187, 89, 7,
- 219,133,103, 57,186,228, 6, 88, 25, 71,165,251,120, 38,196,154,
- 101, 59,217,135, 4, 90,184,230,167,249, 27, 69,198,152,122, 36,
- 248,166, 68, 26,153,199, 37,123, 58,100,134,216, 91, 5,231,185,
- 140,210, 48,110,237,179, 81, 15, 78, 16,242,172, 47,113,147,205,
- 17, 79,173,243,112, 46,204,146,211,141,111, 49,178,236, 14, 80,
- 175,241, 19, 77,206,144,114, 44,109, 51,209,143, 12, 82,176,238,
- 50,108,142,208, 83, 13,239,177,240,174, 76, 18,145,207, 45,115,
- 202,148,118, 40,171,245, 23, 73, 8, 86,180,234,105, 55,213,139,
- 87, 9,235,181, 54,104,138,212,149,203, 41,119,244,170, 72, 22,
- 233,183, 85, 11,136,214, 52,106, 43,117,151,201, 74, 20,246,168,
- 116, 42,200,150, 21, 75,169,247,182,232, 10, 84,215,137,107, 53};
-
-
-
-// -----------------------------------------------------------------------------
-// Calculate the CRC8 of the byte value provided with the current total
-// calc_crc8(unsigned char, unsigned char) crc8 total, byte to add
-// pass crc8 total = 0 to start new crc sum.
-
-// Returns new crc8 total
-// -----------------------------------------------------------------------------
-
-unsigned char calc_crc8(unsigned char crc8, unsigned char value){
-
- return crc_table[crc8 ^ value];
-}
-
-// *****************************************************************************
-// OT07_write_register(char, char, char) writes single byte to OT07
+// I2C_write_register(char, char, char) writes single byte to OT07
// char I2C address
// char OT07 register address
// char data byte to be writen
// returns 0 on success ACK, 1 on NACK
// *****************************************************************************
-int OT07_write_register(char I2C_add, char reg_add, char byte){
+int I2C_write_register(char I2C_add, char reg_add, char byte){
char data[2];
int error;
data[0] = reg_add;
data[1] = byte;
error = i2c.write(I2C_add,data,2);
- //if(DEBUG)db.printf("wr[%02X %02X %d]\r\n", data[0], data[1], error);
return error;
}
/// ****************************************************************************
-// OT07_write_register(char, char, char *, int) writes multiple bytes to OT07
+// I2C_write_register(char, char, char *, int) writes multiple bytes to OT07
// char I2C address
// char OT07 register address
// char * data vector of bytes to be written
@@ -213,7 +115,7 @@
// returns 0 on success ACK, 1 on NACK
// *****************************************************************************
-int OT07_write_register(char I2C_add, char reg_add, char *bytes, int n){
+int I2C_write_register(char I2C_add, char reg_add, char *bytes, int n){
int i;
//set start address
char data[16];
@@ -228,7 +130,7 @@
}
// *****************************************************************************
-// OT07_read_register(char, char, char *, int) writes single byte to OT07
+// I2C_read_register(char, char, char *, int) writes single byte to OT07
// char I2C address
// char OT07 register address
// char * data vector for read bytes to be stored in
@@ -236,7 +138,7 @@
// returns 0 on success, 1 on fail
// *****************************************************************************
-int OT07_read_register(char I2C_add, char reg_add, char *bytes, int n){
+int I2C_read_register(char I2C_add, char reg_add, char *bytes, int n){
int error;
error = i2c.write(I2C_add,®_add,1,1);
if(error)return error;
@@ -245,304 +147,6 @@
return error;
}
-// *****************************************************************************
-// search_I2C_bus(OT07_struct *) searches I2C address 0xA0, 0xA2, 0xA4 and 0xA6
-// OT07_struct * structure array to holds I2C address and rom_ids
-// returns number of devices found
-// *****************************************************************************
-
-int search_I2C_bus(OT07_struct OT07[]){
- char data[16];
- char I2C_add;
- //char GPIO;
- int error;
- int device_count = 0;
- int i;
- int j;
- for(i = 0;i<4;i++){
- I2C_add = 0xA0 + i*2;
- error = OT07_read_register(I2C_add,0xff,data,1);
-
- if(error == 0){
- if(data[0] == 0x30){
-
- OT07[device_count].I2C_address = I2C_add;
-
- OT07_read_register(I2C_add,OT07_ROM_ID,data,8);
- for(j=7;j>=0;j--){
- OT07[device_count].rom_id[j] = data[j];
-
- }
- device_count++;
- }
- }
-
- }
- return device_count;
-}
-
-// *****************************************************************************
-// convert_temperature(char) sends convert command to OT07 device
-// char I2C address
-// *****************************************************************************
-
-void convert_temperature(char I2C_add){ // set convert bit to start conversion
-
- char data[2];
-
- //read ADC_SETUP register 0x14
- OT07_read_register(I2C_add, OT07_ADC_SETUP,data,1);
-
- //mask convert register value with 0x01 and write back register 0x14
- OT07_write_register(I2C_add, OT07_ADC_SETUP, data[0]|0x01);
-}
-
-//******************************************************************************
-// get_temperature(char) read temperature from OT07 device FIFO register
-// char I2C address
-// returns double temperature in oC
-//******************************************************************************
-
-double get_temperature(char I2C_add){
- char data[2];
- double T;
- int count;
-
- OT07_read_register(I2C_add,OT07_FIFO_DATA,data,2); // Read temperature from FIFO, 2 bytes
- //if(DEBUG)db.printf("get_temperature -- FIFO[%02X %02X]\r\n",data[0],data[1]);
- //calculate temperture from data
- count = (int)(data[0]*256 + data[1]);
- if (count >= 32768)count = count - 65536; // 2s comp
- T = (double)count*0.005;
-
- return T;
-}
-
-
-void write_settings_file(int interval, bool device_logged[MAX_DEVICES])
-{
- FILE *fp = fopen(settings_file, "w");
- if (fp != NULL)
- {
- fprintf(fp, "i %d\r\n", interval);
-
- fprintf(fp, "d");
-
- for(int i = 0; i < MAX_DEVICES; i++)
- {
- if(device_logged[i] == true)
- {
- fprintf(fp," %d", i);
- }
- }
- fprintf(fp,"\r\n");
-
- fclose(fp);
- }
- return;
-}
-
-void clear_log_file()
-{
- FILE *fp = fopen(log_file, "w");
- if (fp != NULL)
- {
- fclose(fp);
- }
- return;
-}
-
-bool print_settings_file()
-{
- FILE *fp = fopen(settings_file, "r");
- if (fp != NULL)
- {
- pc.printf("*\r\n");
-
- // Read contents from file
- char c = fgetc(fp);
-
- while (!feof(fp))
- {
- pc.printf("%c", c);
- c = fgetc(fp);
- }
-
- pc.printf("*\r\n");
-
- fclose(fp);
- }
- else
- {
- return false;
- }
- return true;
-}
-
-bool print_log_file()
-{
- FILE *fp = fopen(log_file, "r");
- if (fp != NULL)
- {
- pc.printf("*\r\n");
-
- // Read contents from file
- char c = fgetc(fp);
- while (!feof(fp))
- {
- pc.printf("%c", c);
- c = fgetc(fp);
- }
-
- pc.printf("*\r\n");
-
- fclose(fp);
- }
- else
- {
- return false;
- }
- return true;
-}
-
-int getline(char **lineptr, int *n, FILE *stream) {
- char *bufptr = NULL;
- char *p = bufptr;
- size_t size;
- int c;
-
- if (lineptr == NULL) {
- return -1;
- }
- if (stream == NULL) {
- return -1;
- }
- if (n == NULL) {
- return -1;
- }
- bufptr = *lineptr;
- size = *n;
-
- c = fgetc(stream);
- if (c == EOF) {
- return -1;
- }
- if (bufptr == NULL) {
- bufptr = (char *)malloc(128);
- if (bufptr == NULL) {
- return -1;
- }
- size = 128;
- }
- p = bufptr;
- while(c != EOF) {
- if ((p - bufptr) > (size - 1)) {
- size = size + 128;
- bufptr = (char *)realloc(bufptr, size);
- if (bufptr == NULL) {
- return -1;
- }
- }
- *p++ = c;
- if (c == '\n') {
- break;
- }
- c = fgetc(stream);
- }
-
- *p++ = '\0';
- *lineptr = bufptr;
- *n = size;
-
- return p - bufptr - 1;
-}
-
-bool print_settings_file_2()
-{
- char * line = NULL;
- int len = 0;
-
- FILE *fp = fopen(settings_file, "r");
- if (fp != NULL)
- {
- pc.printf("*\r\n");
-
- // Read contents from file
- while ((getline(&line, &len, fp)) != -1)
- {
- pc.printf("%s", line);
- }
- pc.printf("*\r\n");
-
- fclose(fp);
- }
- else
- {
- return false;
- }
- return true;
-}
-
-//returns true if settings file exists and is in the proper format
-bool apply_settings_file(bool (&logged_devices)[MAX_DEVICES], int& interval)
-{
-
- char * line = NULL;
- int len = 0;
- int line_number = 0;
-
-
- FILE *fp = fopen("/sd/settings.txt", "r");
- if (fp != NULL)
- {
-
- //initialize devices to all false;
- for(int i = 0; i < MAX_DEVICES; i++)
- {
- logged_devices[i] = false;
- }
-
- // Read contents from file
- while ((getline(&line, &len, fp)) != -1)
- {
- line_number++;
-
- char i = 0;
- char c = line[i];
- while(c != '\0')
- {
- int number;
- int n;
- sscanf((line+i), "%d%n", &number, &n);
- if(isdigit(c))
- {
- if(line_number == 1)
- {
- interval = number;
- }
- else if(line_number == 2)
- {
- logged_devices[number] = true;
- }
- if(n > 1)
- i = i + (n - 1);
- }
- i++;
- c = line[i];
- }
- }
-
- fclose(fp);
- }
- else
- {
- return false;
- }
-
- return true;
-
-}
-
//******************************************************************************
// main()
//******************************************************************************
@@ -550,25 +154,9 @@
int main()
{
- OT07_struct OT07[4]; // structure that holds I2C address and ROM_ID
char data[130];
- int device_count = 0; // number of OW devices found by search_rom()
int i;
- int j;
- int k;
-
- char device_id[ID_LENGTH]; //8 byte rom id of current slected device
- char rom_id_list[MAX_DEVICES][ID_LENGTH]; //List of rom id for each device on OW bus
-
- double T[MAX_DEVICES];
-
- bool device_logged[MAX_DEVICES];
- //initialize device_logged to all false;
- for(int i = 0; i < MAX_DEVICES; i++)
- {
- device_logged[i] = false;
- }
// i/o variables
char rx_buff[128]; // comport input buffer
@@ -577,117 +165,22 @@
int n; // argument count
int arg1; // argumnet 1
int arg2; // argument 2
- int device; // device argument
+ int arg3; // argument 3
int num_bytes;
-
- int time_count;
- int log_interval = PERIOD;
- int time_to_sample;
-
- apply_settings_file(device_logged, log_interval);
-
+
+
//************* init ticker timer callbacks ****************
timer_1.attach(&LED_blink_callback,0.5); //start ticker, once per sec.
-
i2c.frequency(400000); //set I2C clock to 400kHz
rLED = LED_OFF;
gLED = LED_ON;
bLED = LED_ON;
-
-
- // reset DS2484
- //data[0] = 0xE1;
- //data[1] = 0xF0;
- //i2c.write(DS2484_ADD,data,1,1);
- //i2c.read(DS2484_ADD,data,1);
-
- // ****************** search for all OW devices on bus *****************
-
- //device_count = search_rom(rom_id_list);
- device_count = search_I2C_bus(OT07);
-
- /*for(j=0;j<device_count;j++){
- for(k=0;k<8;k++){
- device_id[k] = rom_id_list[j][k]; // get device_id from rom_id_list
- }
- set_test_mode(device_id);
- }*/
-
rx_index = 0; //character buffer index for input from PC
-
- button.fall(&btn_pressed);
- SDInsert.fall(&sd_insert);
-
- sd.disk_initialize(); //initialize sd card
-
+
while(1) { // start main loop, take data if logging, check for input, repeat
-
- if(sd_insert_flag == true)
- {
- sd.disk_initialize();
- sd_insert_flag = false;
- }
-
- if(button_flag == true)
- {
- if(log_flag == false){ //start logging
-
- if(SDDetect)//if SD card not detected
- {
- error_flag = true;
- error_ticks = 6;
- log_flag = false;
- }
- else
- {
- apply_settings_file(device_logged, log_interval);
-
- FILE *fp = fopen(log_file, "a");
- if (fp != NULL)
- {
- fprintf(fp,"Device List\r\n");
- fprintf(fp,"Device Number, ROM Code\r\n");
- for(j=0;j<device_count;j++)
- {
- if(device_logged[j])
- {
- fprintf(fp,"%d,0x",j);
- for(i=7;i>=0;i--)
- {
- fprintf(fp,"%02X",OT07[j].rom_id[i]);
- }
- fprintf(fp,"\r\n");
- }
- }
-
- fprintf(fp, "Time(s)");
-
- for(j=0;j<device_count;j++)
- {
- if(device_logged[j])
- fprintf(fp,",Device %d Temperature (C)",j);
- }
- fprintf(fp,"\r\n");
-
- fclose(fp);
- }
-
- time_count = 0;
-
- time_to_sample = 0; // force sample at time = 0;
- tick_flag = true; // force sample at time = 0;
- log_flag = true;
- }
- }else{
- log_flag = false;
- }
- button_flag = false;
- }
-
- while(tick_flag == false){ //check for input while waiting for next tick
// ----------------------------------------------------------------------------
// test for charater input for USB com port
@@ -700,292 +193,42 @@
if(rx_buff[rx_index] == CR){
rx_buff[++rx_index] = 0;
rx_index = -1; // because i++ at end of while give i=0 on next loop
- device = 0;
+ //device = 0;
arg1 = 0;
arg2 = 0;
+ arg3 = 0;
- n = sscanf(rx_buff, " %c %d %x %x", &c, & device, &arg1, &arg2);
+ n = sscanf(rx_buff, " %c %x %x %x", &c, &arg1, &arg2, &arg3);
//process input
if(n > 0){//got input so process it
switch(c){
- case 'a':
- case 'A': // alarm search
- // ****************** search for all OW devices with alarm triggered on bus *****************
- /*
- device_count = alarm_search(rom_id_list);
-
- pc.printf("%d devices:\r\n", device_count);
- for(j=0;j<device_count;j++){
- pc.printf("device[%02X] rom id[",j);
- for(i=7;i>=0;i--){
- pc.printf("%02X",rom_id_list[j][i]);
- }
- pc.printf("]\r\n");
- } */
- break;
- case 'c':
- case 'C':
- if(!SDDetect)
- pc.printf("y\r\n");
- else
- pc.printf("n\r\n");
- break;
- case 'd':
- case 'D':
- if(n==1) // if no device number is given
- {
- //clear device_logged array
- for(int i = 0; i < MAX_DEVICES; i++)
- {
- device_logged[i] = false;
- }
-
- write_settings_file(log_interval, device_logged);
- }
- if(n == 2)
- {
- device_logged[device] = true;
- write_settings_file(log_interval, device_logged);
- }
- break;
- case 'f':
- case 'F': //f is for "flash" for microSD
- if(!SDDetect)
- pc.printf("y\r\n");
- else
- pc.printf("n\r\n");
- break;
- case 'g':
- case 'G':
- if(n == 2)
- {
- //0 means get config, 1 means get log, 2 means clear log
- bool fileExists = false;
- if(device == 0)//get config
- {
- fileExists = print_settings_file();
- }
- if(device == 1)//get log
- {
- fileExists = print_log_file();
- }
- if(device == 2)//get log
- {
- clear_log_file();
- fileExists = true;
- }
- if(!fileExists)
- {
- pc.printf("no_file\r\n");
- }
- }
- // read all registers command
- //i.e. ("g 0 0" means readAll from device 0 "g 1 0" means readAll from device 1)
- if(n == 3)
- {
- //device holds device number 0 means readAll command
- OT07_read_register(OT07[device].I2C_address,0x00,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x00,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x01,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x01,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x04,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x04,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x05,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x05,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x06,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x06,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x07,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x07,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x08,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x08,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x09,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x09,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x0A,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x0A,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x0C,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x0C,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x10,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x10,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x11,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x11,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x12,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x12,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x13,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x13,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x14,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x14,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x20,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x20,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x21,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x21,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x30,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x30,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x31,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x31,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x32,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x32,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x33,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x33,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x34,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x34,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x35,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x35,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x36,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x36,data[0]);
- OT07_read_register(OT07[device].I2C_address,0x37,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0x37,data[0]);
- OT07_read_register(OT07[device].I2C_address,0xFF,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,0xFF,data[0]);
- }
- break;
- case 'i':
- case 'I': //Set Logging sample intreval in seconds
-
- log_interval = device;
- if(log_interval < 1)log_interval = 1;
- if(log_interval > 60)log_interval = 60;
- write_settings_file(log_interval, device_logged);
- break;
- case 'l':
- case 'L':
-
- /*
- // Toggle logging
-
- if(log_flag == false){ //start logging
- if(SDDetect)//if SD card not detected
- {
- error_flag = true;
- error_ticks = 6;
- log_flag = false;
- }
- else
- {
- FILE *fp = fopen(log_file, "a");
- if (fp != NULL)
- {
- fprintf(fp, "Time(s)");
-
- for(j=0;j<device_count;j++)
- {
- fprintf(fp,",Device %d Temperature (C)",j);
- }
- fprintf(fp,"\r\n");
-
- fclose(fp);
- }
-
- time_count = 0;
-
- time_to_sample = 0; // force sample at time = 0;
- tick_flag = true; // force sample at time = 0;
- log_flag = true;
- }
- }else{
- //pc.printf("<stop logging>\r\n");
- log_flag = false;
- }*/
- break;
- case 'P':
- case 'p': // power down One Wire buss
- /*if(n == 2){
- if (device == 0){ // power down mode ON.
- data[0] = WDC; // 0xD2 Write Device Config
- data[1] = 0xD2; // 1101 0010 set 1WS = 0, SPU = 0, PDN = 1, APU = 0
- i2c.write(DS2484_ADD,data,2,0);
- pc.printf("<Power down DQ>\r\n");
- }else{ // power down mode OFF
- data[0] = WDC; // 0xD2 Write Device Config
- data[1] = 0xE1; // 1110 0001 set 1WS = 0, SPU = 0, PDN = 0, APU = 1
- i2c.write(DS2484_ADD,data,2,0);
- pc.printf("<Power up DQ>\r\n");
- }
- }*/
- break;
case 'r':
case 'R':
- //read register "r device radd.start radd.end"
+ //read register "r slave.add radd.start radd.end"
if(n==3){ //read single register from selected device
- OT07_read_register(OT07[device].I2C_address,arg1,data,1);
- pc.printf("device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,arg1,data[0]);
+ int error = I2C_read_register(arg1,arg2,data,1);
+ if(error)
+ pc.printf("nack\r\n");
+ else
+ pc.printf("%02X\r\n",data[0]);
}
if(n==4){ //read a range of regesters from selected device
- num_bytes = arg2-arg1 + 1; // calculate number of bytes to read
+ num_bytes = arg3-arg2 + 1; // calculate number of bytes to read
if (num_bytes < 1) num_bytes = 1; // if arg2 <= arg 1 just read arg1 address.
- OT07_read_register(OT07[device].I2C_address,arg1,data,num_bytes);
+ I2C_read_register(arg1,arg2,data,num_bytes);
for(i=0;i<num_bytes;i++){
- pc.printf("device[%02X] add[%02X] data[%02X]\r\n",device,arg1+i,data[i]);
+ pc.printf("%02X\r\n",data[i]);
}
}
break;
-
- case 's':
- case 'S': // search rom
- // ****************** search for I2C devices on bus *****************
- //NOTE: MUST ADD I2C ADDRESS TODO
- device_count = search_I2C_bus(OT07);
- pc.printf("%d devices:\r\n", device_count);
- for(j=0;j<device_count;j++){
- pc.printf("device[%02X] addr[%02X] rom id[",j, OT07[j].I2C_address);
- for(i=7;i>=0;i--){
- pc.printf("%02X",OT07[j].rom_id[i]);
- }
- pc.printf("]\r\n");
- }
-
- break;
-
- case 'T':
- case 't':
-
- if(n == 2){//get temperatures from selected device
-
- convert_temperature(OT07[device].I2C_address); //send OW convert selected device
- wait(0.02); //wait 20 ms for convert temperature to complete
- T[device] = get_temperature(OT07[device].I2C_address);
- pc.printf("device[%02X] temperature[%.3f]\r\n",device,T[device]);
- }
-
- if(n == 3){ // "t 1 3" get temperature for devices 1 thru 3
- //sprintf(str,"%x",arg1); //convert arg1 input as hex to decimal i.e. 0x10 becomes 10 dec
- //sscanf(str,"%d",&arg1);
- //IS THIS NEEDED? ^^^
-
- for(j=device;j<=arg1;j++){
- convert_temperature(OT07[j].I2C_address); //send convert to all devices
- wait(0.02); //wait 20ms for convert temperature to complete
- T[j] = get_temperature(OT07[j].I2C_address);
- }
-
- for(j=device;j<=arg1;j++){
- pc.printf("device[%02X] temperature[%.3f]\r\n",j,T[j]);
- }
- }
-
- break;
-
case 'w':
case 'W': //write register "w device w.addr data"
-
- OT07_write_register(OT07[device].I2C_address,arg1, arg2);
- pc.printf("write -- device[%02X] add[%02X] data[%02X] crc[FF FF]\r\n",device,arg1,arg2);
- break;
-
- case 'x':
- case 'X': // experimental modes
- // ****************** set up ADC enabled in test mode*****************
- /*
- pc.printf("<set ADC_ENABLED in test mode>\r\n");
-
- for(j=0;j<device_count;j++){
- for(k=0;k<8;k++){
- device_id[k] = rom_id_list[j][k]; // get device_id from rom_id_list
- }
- set_test_mode(device_id);
- } */
- break;
-
-
+ int error = I2C_write_register(arg1,arg2, arg3);
+ if(error)
+ pc.printf("nack\r\n");
+ else
+ pc.printf("ack\r\n");
+ break;
}//end switch(c)
}//if(n>0)
}//end if(CR)
@@ -993,55 +236,8 @@
if(rx_index>0)rx_index--;//remove last char from buffer if not at start.
}else rx_index++;
}//end while(pc.redable())
- wait(0.1); // slow down polling
- }// end (while tick == false)
- tick_flag = false; // set to false for next time
- // only reached when tick_flag = true otherwise stuck in pc.readable() loop
- if(log_flag == true){
- if(time_count >= time_to_sample){ //take next sample
- time_to_sample += log_interval; // calculate time for next sample
-
- ///////////////////////temp conversion and assignment to T[]//////////////////////////////////////
- // start conversion
- /*convert_temperature();
- wait(0.02); //wait 20ms for convert to complete
- for(j=0;j<device_count;j++){
- for(k=0;k<8;k++){
- device_id[k] = rom_id_list[j][k]; // get device_id from rom_id_list
- }
- T[j] = get_temperature(device_id);
- }*/
- for(j=0;j<device_count;j++){
- convert_temperature(OT07[j].I2C_address);
- wait(0.02); //wait 20ms for convert temperature to complete
- T[j] = get_temperature(OT07[j].I2C_address);
- }
- /////////////////////////////////////////////////////////////////////////////////////////////////
-
- //open file for microSD logging
- FILE *fp = fopen(log_file, "a");
- if (fp != NULL)
- {
- //fprintf(fp, "\n");
- fprintf(fp, "%d",time_count);
- for(j=0;j<device_count;j++)
- {
- if(device_logged[j])
- {
- fprintf(fp,",%.3f",T[j]);
- }
-
- }
- fprintf(fp,"\r\n");
-
- fclose(fp);
- }
- }// end if(time_count >= time_to_sample)
- time_count ++; //
-
- }// end if(log_flag)
}//end while(1)
}