Its hard to help you without some code, but perhaps you are putting the 10 bit variable into a 8 bit variable causing overflow. You can disregard the 2 least significant bits by shifting

Updated slave: /* MCU: P16F88 Dev.Board: EasyPIC4 Oscillator: INT OSC, 08.0000 MHz */ unsigned long cnt=0; unsigned long cnt2=0; unsigned float second=388; unsigned short test=0; //------------------------------------------------------------------------------ const Addy = 0xC2; // set I2C device add...

double post...

Found a solution finally, The problem was with the master. I added a couple of delays.. void send(unsigned short send_data, unsigned short slave){ I2C_Init(100000); I2C_Start(); I2C_Wr(slave); Delay_ms(2); //2-20 sec <---- added delay I2C_Wr(send_data); Delay_ms(2); //2-20 sec <---- added delay I2C_...

Its been days and I haven't been able to get the posted code to work as it is. One error I'm sure of is the fact the slave address is 0x69, which is not an even number and hence the least significant bit will be set. There is also an SSPBUF read for every interrupt which is not O.K when you've got o...

Hi, For the past three weeks I have been trying to solve this problem and I am at the end of my rope here. I have searched just about everywhere, on this forum and elsewhere for a solution which has gotten me this far. Hope someone can spot the error I am making. First of all, I connect the SDA,SCL ...

How is it not working?

Could you give us a code example?

Hi, Take a look at the schematic found here: http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=108 There is a chip called FT232R, Datasheet: http://www.ftdichip.com/Documents/DataSheets/DS_FT232R.pdf A quick description of it (copy-ed from the sparkfun link): What is a USB to TTL conve...

yes I guess you should double the voltage first and then invert

you could also use this if all else fails:
http://ww1.microchip.com/downloads/en/D ... 21465b.pdf

there is a sample schematic in the datasheet

It was using wave step, I modified the code now so it does wave, full and halfstep. I will post it on the forumn soon

omg! I'm so sorry.. I read stepper, not servo :) you cant make a servo go faster, however you can make it go slower.. I have never made a servo go slow, but I guess you could use a FIR filter to make the movements smoother and/or slower. Or a quicker way would be to move in smaller intervals. Instea...

just decrease the time between steps --> more speed...

I'm not sure what you are asking?

Not possible in the usart module I think.
Give soft usart a try

Does it matter if the vehicle is running or not? What frequency is the noise? is there a decent ground plane on your pcb? (It reduces noise significantly) Have you tried adding a bypass cap at well chosen location to see if the noise reduces? you can use a resistor instead of the inductor in the low...

see the datasheet, chapter 12-6.
http://ww1.microchip.com/downloads/en/d ... 41190c.pdf