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Hi
The Project aim was the construction of a Bipolar Junction Transistor (BJT), MOSFET and Diode curve tracer.
The device was built around the PIC 18F4550 8bit microcontroller. Through the I2C and the DAC DAC6574 four analog outputs are controlled. Two of them are used for controlling the base...
Hi I am trying to design a circuit that accepts as an input 0->5V DC from an AD converter and translates them linearly to -6V to +6V with a maximum sink/source current of 200mA, the input signal will change very slow (every 20ms or more) and the fast response time is not an issue. A have...
Thelux thanks
I load 4550 with the new firmware and now my ICD is working OK with MPLAB 7.43. My old 4550 firmware caused the problem with that version of MPLAB.
Regards Nick
HI Thelux
Thanks for your answer
Can you upload the firmaware (.hex) that you are using for PIC18F4550 and for PIC16F877A in order to reprograme my ICD?
Regards Nick
Hi To all
I have built the ICD some months ago and is working fine with MPLAB 7.01 and 7.30. I try it with MPLAb 7.40 7.43 but ICD fails to download OS and hence to successfully connect. Any suggestions? Mayby a new firmware for PIC18F4550 is needed?
Regards Nick
I build the USB ICD2 few months ago and I tested all that time with no problems. The ICD is very very fast, with file registers tab and 6 watch tabs open the steeping is a fraction of second!! For those that work with RS232 they now what I mean...For the newers in this forum I have all the info...
pic18f4550 usb driver
You can find below info and software that I developed for connecting PIC with the PC via USB.
Regards Nick
**broken link removed**
pic18f projects
Hi to all
After the successful completion of the Project to replace CY7C64613 in the ICD2, I am thinking for the possibility to start a new project in order to build a data acquisition system based on PIC18F4550. As a final application I have in my mind a home build...
Hi Polymath
Firstly thanks for you comments. Secondly do you know how mplab controls the Vpp via the digital pot? I am running MPLAB 7.30 and no menu is relative to this function.
Nick
Hi
After of one day of dramatic (and traumatic!!!) debuging I found sourse of the error I refered in my previous post. I replaced the 330R resistor at the output of the PGC (Clock) driver with a 15R. Now everything works fine. I program & debug with no errors 16F876A, 877A and 18F4550. It is...
Hi to all
I just finished the assembly of my version of ICD2 **broken link removed**.
Everything works fine when I debug and program a PIC18F4550, but when I try to program in debug mode a PIC16F877A or 876A I am getting the following error:
Verify failed (MemType = Config, Address = 0x2007...
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