Search found 33 matches

Thanks so much Ttelmah & temtronic, you are quite correct! It now works perfectly, saving me from a "work around" and hacking my new board. Very Happy

Thanks again!

Module: I2C™ Interface The MCP45HVX1 interface will accept the serial data that was intended for other devices on the I2C™ bus. This occurs when the other device on the same I2C bus Acknowledges t ...

Thanks,
My dspic33fj256mc710a is on 3V3.
The MCP45HV51's VL is on 5v, V+ is +15V, V- is -15V
I2C bus is approx. 4" long with only two digipots on there. 4K7 pullups to 5V at digipot end, SCL2 ...

Yes sorry I have the MCP45HV51

I use the I2C Scanner and found both my chips at address 0x78 & 0x7A as expected, but I still cannot get communicate to them successfully yet.

Mine is the H version so uses the 7.

So my code ...

Hi Temtronic,

Thanks for reply.
Yes I have 4K7 pullups.
Haven't heard of this scanner before, so will check that out!

Regards
James

Hi There,

I'm using a pair of MCP45HVX1 digi-pots on my board, each one works fine if I use the address byte as 0x00. Neither work if I set it to what the datasheet says, 0x78 for A1=0:A0 = 0 or 0x ...

Hi Guy,
I'm using a dspic33fj256mc710A, thanks I shall read up about DMA not used before!

Thanks for the advice, which caused me to rethink what I'm doing. I've now linked the CH A & B of encoder from the motion board to the analogue board, so I can read in hardware into the QEI and wo ...

Dear Guru's,

Linked to my previous question, I now need a solution for the incoming encoder position, as the rate of data coming in when moving LVDT faster is putting my S & H timing off. I've ...

Thanks Ttelmah, I used the ex_stisr.c example and reducing the serial string as you suggested, I can see on the scope it's working. I just need to amend the c# code to decode the new hex string and ho ...

Hi,

I'm writing some code to measure a LVDT's output over stroke.
Working:
* Excitation frequency generation & voltage adjustment
* Two channel Sample and hold
* Serial commands to set V &a ...

I see, so remove them I shall!

Thanks again Ttelmah!

Hi Ttelmah,

Yes chip would be a good idea DSPIC30F2012, old V4.078, new 5.072.

Thanks

Hi There,

I'm updating an old project from old unknown ccs version, and there are some fuses which I cannot find a new version of, I've looked through the help file and the device header file, can ...