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74 Threads found on i2c Adc
If you need to read current from a shunt resistor you can use the ADS1115 which is an i2c 16bit converter I use it in some of my projects. There cheap enough from eBay and plenty of samples out there to get you going.
I can't sure, you can get one IC with i2c communication, but you can consider LMP90100 which comes with SPI interface. Again it may take some spaces. For similar kind of application you can use some adc where you can get adc bit out which you have to convert it into temperature. Udhay
i connected a ds3231 rtc to pic 18f4620 if i use soft i2c ( ccs complier) the rtc is working good if i switch off and on the main power for 3 are 4 times one time the day or time changes how to solve this problem. the soft i2c settings are : #include <18F4620.h> #device adc=16 #FUSES NOWDT //No Watch Dog (...)
The suggestion sounds reasonable to me. Reviewing i2c projects at Opencores can surely help you to write your own i2c code. A realistic alternative is to write the code from the scratch, using the i2c specification as reference. Even if you finally decide to copy existing i2c IP, it's a good way to pick up the basic concept.
Here is my 8 pin PIC12F clock. Still 70% of ROM is free. Will try to add more features. Will soon add a i2c temperature sensor and many more i2c devices and make a feature rich device. Will try to make another clock with DS3231 which is a better RTC. 8-)
have you had a look at Microchip's code samples? there are several examples of i2c for PIC18
how many channels of data acquisition, how many bits converted by the adc, how fast, etc? what do you want to control, e.g. how many devices, how are they attached (i2c, SPI, CANBUS, etc) to aid in selecting a target device you can use product selectors, e.g. Microchip
Do you have any idea how can i modify this code that instead of showing the data from adc or DAC on the webpage, show data from i2c (from Master micro-controller AT90CAN128) on the webpage?
105026 I have to access the adc chip ADS1015 by sending data throughi2c bus. In the data sheet Yellow box highlights Read/write bit, Green is ACKnowledgement bit and the Red box is something which i do not understand, what it means. After that the second byte of data is sent to ADS1015. Do i have to worry about genera
Trying to communicate with lpc2148 inbuilt i2c protocol(i2c0) to external adc chip (pcf8591 philips adc-dac chip) to read adc voltage from it. But proteus simulation with lpc2138 is not responding to the code written.Being a newbie to i2c protocol specifically on LPC2148, can anyone guide (...)
i am using MCP3428 differential adc using single shot conversion and interface through i2c to my micro controller. it's working fine but after10 or 12 hour continuous working ic is not giving any vales same as like hang. When i remove power of the MCP3428 (same as like restart) and connect it's start working. Why its can i solve this
Do you have HI-TEC anci c compiler (for 12f/16f)uC) ? Check the sample program folder after installing hitec c, it will give some functions for adc, i2c etc. For ds1307 interfacing check this
You can employ an serial i2c small package A/D IC, which requires just 2 digital I/O pins. In having another i2c devices already being used, will not require additional ports, due you can connect at its existing bus. +++
Hi, I'm a newbie in Fpga's and vhdl, we are using spartan-6 lx150t development kit, this board consists of one max7500(temperature sensor) adc with two wire i2c protocol. please anyone guide me to implement i2c interface between spartan 6 and the adc. any tutorial or links will be helpful. Thanks
i am going to use a separate adc ic that is going to communicate with controller using spi or i2c.i need to give three (4 to 20 mA ) analog inputs which come from analog sensors
I have wrote many c codes for lpc2148 like adc,i2c,spi... but now i want to write codes in assembly language but i am not getting the start. cam anybody give few examples of assembly coding of lpc2148 The LPC21XX family of ARMs actually support two very different instruction sets and conversely two differen
i have not tried ethernet libraries but many other library like i2c,adc.. many other were working fine on proteus
Look at Cypress semiconductors PSoC controllers. It has some useful features. You can configure any pin to any port or any function just like a FPGA. example you can configure any pin to a analog pin, UART pin, i2c pin, USB, etc...., It has build in & configurable adc/DAC. You don't need external OPAMP because it has buid in digital gain controled
use mikro c help ,it has its own help and examples for adc, i2c etc
That's one way. Have a fixed resistor on the main board and use the peripheral resistor as a voltage divider and measure with an adc. Make sure to leave a big enough gap between values to allow for tolerance stack up. Another way, especially if you think you're going to have a fair number of different sensors, is to use a i2c port expander (such a