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I have an IMU (MPU-6050) and PIC32MX120F032B, i would like to communicate between them using I2C,
IMU is slave and it does not send ACK signal back. I have used modified pic32 i2c example code.
I have 4k7 pull-up resistor on both SDA and SCL. Please post all your ideas and solutions.
This is...
I have solved it. The problem was that i have configured all chip's pins as outputs (TRISB = 0;), but the RX pin have to be configured as input...
Thank you all.
I have two PIC32MX120F032B and i need to communicate between them (preferably using uart but it doent really matter), i have made the connection between their TXs and RXs and tryed simple example code, but it didnt work, i checked the code and hardware connections, but i cant find any problem...
You should choose a zener diode with sufficient wattage rating so it wont burn out. Voltage over zener diode times current that flow through it should be less than it's wattage rating. For example: you have 5V 1W rated diode, so the current through it shouldnt be more then 1/5 A.
You shouldnt connect MCLR to 5V just through the resistor you should use a simple timing circuit,
this pin resets/starts the pic, so you should let the pic have some time with connected power supply
before you resets it.
Try adding this circuit:
or use POR (power on reset), you can enable it...
The mosfet you have there has its substrate(bulk) connected to ground (as shown in the picture in your 2nd post)
and not to the source as is usual, so 1/(gm+gmb) is resistance of the subsrate.
Pages 15-18 of this document shows equations and small signal model of mosfet with its substrate not...
Re: How to simply the circuit
Figure C is small signal model of the circuit.
You can read more about it here: https://en.wikipedia.org/wiki/Hybrid-pi_model
This video helped me a lot when i was soldering for the first time, hope it will help you too.
https://www.youtube.com/watch?v=I_NU2ruzyc4&feature=related
DC DC converters and voltage regulator are similar in the matter that they transform voltage of one value to another, however most DC DC converters, firstly convert DC input to AC which is easier to transform, this is how they can produce higher voltage output than is their input. Voltage...
Because they can change voltage of input to some other needed value. For example this one **broken link removed** can convert anything from 4-30V to 3.3V.
I am designing a simple radio transmitter circuit in LTspice...everything seems to be working fine but i am not sure if i can rely on the simulation.
How accurate are theese simulations? Does LTspice have any known bugs concerning simulations? Will the circuit work if i actually build it?
I got two chip (pic18f14k50 which works on 1V8 to 5V5 and pic18f45k20which works from 1V8 to 3V3), I grounded them together and tried to make simple communication between them.
I programmed external interrupt for pic18f14k50 to switch LED each time interrupt occure, and pic18f45k20 to send...
oh i got mistake there in question number 1 should be this:
Do I have to use power from computer? Because i want to power the chip with 3.3V from battery and leave Vusb unconnected.
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