Int16 read_TC(void) //It takes 200ms (ish) for the MAX6675 to perform a conversion Output_high(TC_CS) //if we idle high, the chip keeps doing conversions. Int1 thermocouple_error //a handy dandy global error flag to tell you if a thermocouple is connected or not #define TC_CLK PIN_B1 //edit these pins as necessary Have a look at the end of the file for example usage. ToFloat_TC() is the temperature in degrees celcius of the thermocouple tip. It implements an SPIīus without the need for dedicated hardware (aka a bit-banged interface). This is a diver for the MAX6675 K-type thermocouple interface chip. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * along with this program if not, write to the Free Software * * You should have received a copy of the GNU General Public License * * GNU General Public License for more details.

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * but WITHOUT ANY WARRANTY without even the implied warranty of * * This program is distributed in the hope that it will be useful, * * as published by the Free Software Foundation version 2 * * modify it under the terms of the GNU General Public License * * This program is free software you can redistribute it and/or * * ma圆675.c - communicates with a MAX6675 thermcouple interface chip * It is free software (as in freedom), just make sure you abide by the terms of the lisence. Notice I am releasing this under the GPL, so make sure you understand what rights and responsibilites this gives you before including it in your own projects. The driver implements a software SPI port, so there is no need for dedicateed hardware- any 3 GPIO pins can be used. Send them to driverīelow is my driver for the MAX6675, a chip which interfaces to a K-type thermocouple over a simple SPI bus. Please do not post bug reports on this forum. FAQ Forum Help Official CCS Support Search Register Profile Log in to check your private messages Log inĬCS does not monitor this forum on a regular basis.

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