Gabriel Silva
temp logg
Revision 6:19b9f3337ea7, committed 2020-11-01
- Comitter:
- glsfacom
- Date:
- Sun Nov 01 14:44:37 2020 -0400
- Parent:
- 5:c2811b726e63
- Commit message:
- escrevendo csv no SD
Changed in this revision
| Mlx90615.cpp | Show annotated file Show diff for this revision Revisions of this file |
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/Mlx90615.cpp Sun Oct 11 09:39:59 2020 -0400
+++ b/Mlx90615.cpp Sun Nov 01 14:44:37 2020 -0400
@@ -1,7 +1,8 @@
+
#include "Mlx90615.h"
-#include "crc8.h"
-I2C i2c(p28, p27);//I2C_SDA, I2C_SCL
+MbedCRC<POLY_8BIT_CCITT , 8>ct;
+
Mlx90615::Mlx90615(int quant):
n_mlx{quant}
@@ -38,14 +39,14 @@
char cmd = 0x27;
Mlx90615::i2c.start();
ACK = Mlx90615::i2c.write(mlx_addr<<1);
- if(!ACK) return -2;
+ if(!ACK) return -1;
ACK = Mlx90615::i2c.write(addr);
- if(!ACK) return -3;
+ if(!ACK) return -1;
Mlx90615::i2c.start();
ACK = Mlx90615::i2c.write((mlx_addr<<1)|1);
- if(!ACK) return -4;
+ if(!ACK) return -1;
read[0] = Mlx90615::i2c.read(ACK);
- if(!ACK) return -5;
+ if(!ACK) return -1;
read[1] = Mlx90615::i2c.read(ACK);
Mlx90615::i2c.read(ACK);
float temp = (float((read[1] << 8) | read[0]));
@@ -67,7 +68,7 @@
temp = _read(RAM, 0x07, mlx_addr);
cont++;
}
- return temp;
+ return temp*0.02 - 273.15;
}
void
@@ -75,7 +76,6 @@
{
for(int i = 0; i < n_mlx; i++)
temps[i] = read_temperature(i+1);
- printf("%f\n",temps[0]);
}
void
@@ -83,22 +83,25 @@
{
unsigned char addr = EEPROM + reg_addr;
char bytes[4];
+ uint32_t mcrc;
unsigned char crc, vh, vl;
vh = value >> 8;
vl = value;
- bytes[0] = 0xB6;
+ bytes[0] = 0x00;
bytes[1] = addr;
bytes[2] = vl;
bytes[3] = vh;
- crc = crc8(bytes, 4);
+ ct.compute((void*)bytes, 4, &mcrc);
+ crc = mcrc & 0xff;
Mlx90615::i2c.start();
- Mlx90615::i2c.write(mlx_addr<<1);
+ Mlx90615::i2c.write(0x00<<1);
Mlx90615::i2c.write(addr);
Mlx90615::i2c.write(vl);
Mlx90615::i2c.write(vh);
Mlx90615::i2c.write(crc);
Mlx90615::i2c.stop();
+ ThisThread::sleep_for(300);
}
void
@@ -107,9 +110,12 @@
}
void
-Mlx90615::write_eeprom_address(unsigned char reg_addr, uint16_t data, unsigned char mlx_addr){
- _write(reg_addr, 0x0000, mlx_addr);
- _write(reg_addr, data, mlx_addr);
+Mlx90615::write_eeprom_address(unsigned char reg_addr, uint16_t data, unsigned char mlx_addr)
+{
+ if(reg_addr>= 0x04 && reg_addr <=0x0d)
+ return;
+ Mlx90615::erase_eeprom_address(reg_addr, mlx_addr);
+ Mlx90615::_write(reg_addr, data, mlx_addr);
}
void
--- a/main.cpp Sun Oct 11 09:39:59 2020 -0400
+++ b/main.cpp Sun Nov 01 14:44:37 2020 -0400
@@ -4,16 +4,16 @@
#include "Mlx90615.h"
#include "TMP117.h"
#include "PinDetect.h"
+#include <cstdio>
#define LOG_DELAY 1 //seconds
#define TMP_QUANT 1 // MAX = 4
-#define MLX_QUANT 1 // MAX = 127
-#define MLX_SETUP 0 // 1 or 0
+#define MLX_QUANT 1 // MAX = 127 (NEED TO BE CORRECT ON SETUP)
+#define MLX_SETUP 0 // 1=Setup or 0=LOG
DigitalOut myled(LED1);
DigitalOut led2(LED2);
-PinDetect button(p11);
int volatile quit = 0;
@@ -27,17 +27,19 @@
main()
{
// set_time(1595446700 - 3600*4); // set time to 22/07/2020 15:38:20 @CGMS
- // Use internal pullup for pushbutton
- button.mode(PullUp);
- // Delay for initial pullup to take effect
- ThisThread::sleep_for(10);
- // Setup Interrupt callback function for a button hit
- button.attach_deasserted(&buttonISR);
- // Start sampling button input using interrupts
- button.setSampleFrequency();
+
if(MLX_SETUP)
{
+ PinDetect button(p11);
+ // Use internal pullup for pushbutton
+ button.mode(PullUp);
+ // Delay for initial pullup to take effect
+ ThisThread::sleep_for(10);
+ // Setup Interrupt callback function for a button hit
+ button.attach_deasserted(&buttonISR);
+ // Start sampling button input using interrupts
+ button.setSampleFrequency();
Mlx90615 mlx{MLX_QUANT};
int lastbutton = quit;
for(int i = 0; i < MLX_QUANT; i++)
@@ -46,18 +48,26 @@
while(lastbutton==quit);
led2=0;
lastbutton = quit;
+ printf("write slave addr %d\n", i+1);
mlx.write_eeprom_address(0x00, (uint16_t)i+1, 0x00); //all mlx will ACK to 0x00
- ThisThread::sleep_for(300);
}
}
else
{
- double mtemps[127];
+ printf("Entering log mode\n");
while (!quit)
{
//Os objetos que bloqueiam sleep(I2C, SPI) não estão declarados, então o sleep no começo deveria funcionar
ThisThread::sleep_for(LOG_DELAY*1000);
-
+ PinDetect button(p11);
+ // Use internal pullup for pushbutton
+ button.mode(PullUp);
+ // Delay for initial pullup to take effect
+ ThisThread::sleep_for(10);
+ // Setup Interrupt callback function for a button hit
+ button.attach_deasserted(&buttonISR);
+ // Start sampling button input using interrupts
+ button.setSampleFrequency();
Mlx90615 mlx{MLX_QUANT};
TMP117 tmp(0x48);
@@ -86,7 +96,7 @@
}
printf("SD mount done.\n");
- FILE *fp = fopen("/fs/log.txt","a+");
+ FILE *fp = fopen("/fs/log.csv","a+");
if(fp == nullptr)
{
printf("Could not open file\n");
@@ -102,21 +112,19 @@
printf("%s",ctime(&seconds));
printf("{\nTMP:\n");
fprintf(fp, "%s",ctime(&seconds));
- fprintf(fp, "{\nTMP:\n");
for(int i = 0; i < TMP_QUANT; i++)
{
printf("\t%d: %.2f ,", i, tmp.temps[i]);
- fprintf(fp, "\t%d: %.2f ,", i, tmp.temps[i]);
+ fprintf(fp, ", %.2f", tmp.temps[i]);
}
printf("\nMLX:\n");
- fprintf(fp, "\nMLX:\n");
for(int i = 0; i < MLX_QUANT; i++)
{
printf("\t%d: %.2f ,", i, mlx.temps[i]);
- fprintf(fp, "\t%d: %.2f ,", i, mlx.temps[i]);
+ fprintf(fp, ", %.2f", mlx.temps[i]);
}
printf("\n}\n");
- fprintf(fp,"\n}\n");
+ fprintf(fp,"\n");
fflush(fp);
myled = 0;