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A program to read the DS2745 by means of the I2C bus.
Revision 0:f453c4d28d21, committed 2013-10-31
- Comitter:
- Ugly_Kid
- Date:
- Thu Oct 31 13:36:32 2013 +0000
- Commit message:
- Leitura do DS2745 GTACQUAPLUS
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/RTC.lib Thu Oct 31 13:36:32 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Sissors/code/RTC/#be9d058ee5c7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Thu Oct 31 13:36:32 2013 +0000 @@ -0,0 +1,78 @@ +#include "mbed.h" +#include "RTC.h" + +Ticker reading_i2c; + +DigitalOut myled1(LED1); + +DigitalOut myled2(LED2); + +DigitalOut myled3(LED3); + +DigitalOut myled4(LED4); + + +I2C i2c(p9, p10); + +const int addr = 0x90; +Serial pc(USBTX, USBRX); +int x; + +void read_i2c () +{ + x = 0; +} + + +void ledFunction( void ) +{ + if (myled3 == 0) + myled3 = 1; + else myled3 = 0; + //RTC::detach(RTC::Second); + time_t seconds = time(NULL); + printf("\n%s\n", ctime(&seconds)); +} + +int main() { + reading_i2c.attach(&read_i2c, 0.1); + + set_time(1256729737); + tm t = RTC::getDefaultTM(); + RTC::attach(&ledFunction, RTC::Second); + + int iI2Cfreq = 100000; // bus frequency in Hz + i2c.frequency (iI2Cfreq); //set I2C frequency + //i2c1.frequency (iI2Cfreq); //set I2C frequency + pc.baud(115200); + +// int i,j; + int j; + float z, k; + char cRegister[1]; + char cData[2]; +// char cData1[2]; + cRegister[0] = 0x0E; + cData[0] = 0x00; + cData[1] = 0x00; + k = 0.0015625; + // cData1[0] = 0x00; + // cData1[1] = 0x00; + while (1) { + if (x == 0) + { + i2c.write(addr, cRegister, 1); + i2c.read(addr, cData, 2); +// i2c1.write(addr, cRegister, 1); +// i2c1.read(addr, cData1, 2); +// i = 256*(int)cData1[0]+(int)cData1[1]; + j = 256*(int)cData[0] + (int)cData[1]; + z = j; + z = (z * k)/0.02; +// z = 100 - ((j - i)/z * 100); +// printf("Regulador %X %X \t ACQUAPLUS %X %X \t Eficiencia %f%%\n", cData[0], cData[1], cData1[0], cData1[1], z); + printf("Corrente (mA) %.2f \n", z); + x = 1; + } + } +} \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Oct 31 13:36:32 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/a9913a65894f \ No newline at end of file