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Re: Voltage Control for Power Supply
Thanks xaccto.
There will actually be a hall-effect current sensor to monitor the current while charging and the voltage will be monitored as well. You are saying that I can control the current by controlling the supply voltage? There is a CC and CV mode to...
Voltage Control for Power Supply
Hello people,
I have an of-the-shelf SMPS and I want to use it as a battery charger. I will be using a MOSFET driven by a PWM on a microcontroller to control the current. My problem is how to control the voltage while preserving the maximum current of the power...
SPI String
I have successfully used SPI communications between two microcontrollers. That was when I am sending 1-byte data, but when I used to transfer a string the slave seems to be getting only the first byte, can you tell why is this happening?
here is the master code:
if(slave == TRUE)
{...
openadc readadc
I am not sure of this, but base on my interpretation of the C18 Manual it is based on the portconfig. In my example it's 0b1011. That means AN0-AN3 are analog inputs. So if you want to use all 13 channels(I don't know what you are going to do with that - 13 sensors?) it should...
mchpusb driver problem
Well if you want to get started you just need to modify the examples. On my case, I modified the CDC basic demo. I specifically modified the UserInit() and ProcessIO() functions and also the Hardware Profile. I got some help when I am starting on the project through this...
pic18f4550 hid c18 adc
I am currently working on a project quite alike, but I am using v2.4. It's just CDC basic demo and I can monitor sensors and control LEDs with a VB application..
Hey guys, I just bought a servo controller from a local store here and I don't know what seems to be the problem on my code that it just won't work. If you have some spare time would you be willing to take a look on this?
Here is the manual...
Re: USB CDC and a slave
I have worked it out! Thanks Kurenai_ryu! Your suggestion definitely made it. I have stopped opening and closing the SPI all the time, and increased the delay. I should not forget those simple stuffs from now on. Here's the modified code:
Master:
void UserInit(void)
{...
openspi 1
There is no function to check if the SPI has finished sending that is why I used some delay but I'll consider your suggestions.
I don't think you really understand it. I have successfully used 18F4550 as USB device and now I want to add a second 18F4550 as a slave to the first.
hello, I have been playing around with 18F4550 as a USB device using a modified CDC firmware. I recently needed to have another 18F4550 to be controlled as a slave device. The problem is whenever I send data to the slave, the master hangs up(the blinkusb status freezes). I interfaced it using...
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