Timeline for Interfacing ADS1115 with FPGA
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
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| Oct 31, 2017 at 6:04 | comment | added | Zuzu | hey thanks for all the help earlier... ive managed to start reading from the ads1115... but im facing another problem as of now... even when i connect a0 to 3.3v im reading junk i.e constantly fluctuating values from as low as 500 t0 63000 from the conversion register... any help would be much appreciated... | |
| Oct 28, 2017 at 10:41 | comment | added | Zuzu | also the i2c that im using is a IP | |
| Oct 28, 2017 at 6:02 | comment | added | Zuzu | the application im using is involves pairing a mq135 gas sensor with this adc | |
| Oct 27, 2017 at 15:43 | comment | added | awjlogan | You'll need to be more specific in terms of what you are asking, as there are many things that can cause issues when using these interfaces. For example, are you using an I2C IP block, or did you make your own? This is about as simple as it gets for I2C, and I don't know your application so can't recommend any other ADCs. | |
| Oct 27, 2017 at 15:41 | history | edited | awjlogan | CC BY-SA 3.0 |
Mistake
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| Oct 27, 2017 at 15:18 | comment | added | Zuzu | P.S I have already configured the config register to my needs. Any help on what order of passage i need to pass the bytes will be very helpful. | |
| Oct 27, 2017 at 15:16 | comment | added | Zuzu | Due to some reason, I am not able to read continuous conversion from it.I am getting a constant value of 255 from the I2C read. Is there any particular way I need to configure this board in my program? It would be very appreciable if you could also suggest a probable alternative to this ADC-I2C board which is pre-configured or at the very least isn't as complex as this. | |
| Oct 27, 2017 at 14:50 | comment | added | awjlogan | See Table 8 of the datasheet - all registers are read/write. | |
| Oct 27, 2017 at 14:50 | history | edited | awjlogan | CC BY-SA 3.0 |
Added ref to Table 8
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| Oct 27, 2017 at 14:35 | comment | added | Zuzu | I need to read 16 bits of config register not hi, lo thresh Register. | |
| Oct 27, 2017 at 14:29 | history | answered | awjlogan | CC BY-SA 3.0 |