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On the same board there is the touch screen, that is working correctly.
This is a working project. The last part is the battery monitor, that's doesn't work due to adc problem.
Avdd is connected directly to vdd, like in the Microchip Multimedia Expansion Board (DM320005)
Avss same like above...
In my code I tried to exclude all other pin than AN2.
AN2 is connected to a voltage divider (1k/1k), and the low side resistor is in parallel with a 100uF capacitor.
Which other pin I should check?
Thanks a lot.
Hi Susan,
thanks for your reply.
I'm using my PIC32 with step-up switching and LDO regulator because in my board I need also 5V for analogic and 3.3V to supply the pic and other circuitry.
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Now the code in my first post works correctly, the problem was the AD1CHSSET doesn't...
Hi,
I made a custom board based on Microchip MEB (DM320005) and PIC32 Ethernet Starter Kit that use the MCU in subject.
My board has a touch screen that works fine, connected to AN11 AN12 AN13 and AN14.
The internal ADC10 of the pic convert the analog signal to X and Y position.
My board is...
Pointing the negative of multimeter on the chassis, on C1005 I have -106V at -pole and +3.46V at the positive pole of the capacitor.
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Found the problem!!!
The schematic shows T1006 as TIP47, but on the board there is BUX87.
I bought TIP47, and looking the datasheet this has...
I guess I've found the problem.
The problem is for sure in this part of circuit.
I do not have +45V (I measure +1.6V) and +70(i measure -0.9V).
Could someone give me some explanation on how this power supply works?
I found the T1005 BD237 burnt and I've already reaplaced. Where search the nex...
Yes, Thank you for advice, but I have double checked. I think I should check the bottom board where is generated +45 and +70 volt.
I need a break. All day on the same thing. Tomorrow morning I will start to check the trace for +70V.
Thank you very much for your support E-design.
I'm going to check.
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Effectively, the connector P3-11/1 is ok, but the P2-3/3 is not ok. The voltages, starting from pin 1 should be:
1) GND
2) +5V
3) -12V
4) +70V
5) +12V
6) AMP (i don't know what means)
and I measure:
1) 2.155V
2) 12.07V
3) 4.18V
4) -12.06V
5) 4.92V
6) 0V...
I had a problem with IC1101 7905 and the diode D1103 and D1104, TB (Time base?) board, page 40 of the manual. the board image is on page 38.
I replaced two times the diodes. I replaced the originale 7905 with LM7905. The original is an "isolated version", with case connected to chassis. The...
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