6
votes
Accepted
Am I over-complicating this data acquisition design?
You can't time-domain multiplex a filter like that. The "state" of the filter (the voltage and/or current in the reactive components) is unique to each channel and would have to be multiplexed as well....
- 178k
5
votes
Accepted
I2C seems to work but all register reads return 0s
The I2C waveforms on the scope shot look like valid I2C, so that rules out common errors like forgetting to include SCL/SDA pullup resistors, or having too much bus capacitance, etc. At the bit/...
- 15.1k
4
votes
Am I over-complicating this data acquisition design?
Having worked at a telemetry house, right out of college, I provide this design.
System must accurately read out 16 sensors, to 10 bit accuracy, 200 times a second. Assuming a single ADC, the start-...
- 35k
3
votes
Using Arduino as an I2C PSOC Embedded Bootloader Host (ISP)
Looking at the complexity involved, I would not continue with your plan as it is now i.e. to go from "nothing" straight to "Arduino as PSOC I2C Bootloader Host". That's because, as you are finding, ...
- 18.3k
3
votes
Accepted
Cypress MCU strucks in Hard Fault Handler
Piece of your code would definitely help. You need a hard fault handler that will explain you what happened.
Follow this guide.
Most of the time hard faults are caused by:
Accessing a wrong address ...
- 9,096
3
votes
Accepted
Servo controller
I couldn't be more happy. We have solved the problem and now the servo works as it should.
An expert helped me who have worked with servo systems.
He also highlighted that the Electric Gear Ratio (EGR)...
- 455
3
votes
Why doesn't PSOC 5LP print this number?
It looks like test is defaulting to an integer datatype, unless you have declared it otherwise in one of your header files. Your real literal, 0.1, is being ...
- 31.7k
2
votes
Are RS232 to RS422 converters reversible?
Yes, they are reversible.
1). 232Rx <= 422Tx.
2). 232Tx => 422Rx.
This is what, generally, the converter pinouts say.
The first line converts 422 to 232 and vice versa for the second.
- 66
2
votes
What's an idiomatic way to detect posedges inside a FSM in Verilog?
(what happens if syncsignal goes high when I'm not in STATE_WAIT?)
That is a more matter of specification. What are you building? What do you want to happen when?
What you have build is a that the ...
- 14.6k
2
votes
How to upload image to flash of PSoC with openocd?
Look inside /usr/share/openocd. Words in italics refer to the subfolders of that:
OpenOCD has so-called board scripts (TCL, of all languages!), which describe how to interface with some hardware. In ...
- 100k
1
vote
Accepted
Using DS2482-100 to communicate with DS28E05
As guessed (see hypothesis) the two chips doesn't start in the same speed mode.
The old start in low mode (and can be set to high speed)
The new one only work in high-speed mode.
Solution:
I have to ...
- 131
1
vote
Power monitoring difficulties using ACS71020 30A SPI and PSoC 5LP
This fixed my issues with random readings.
I've done some testing and i've found out that as stated in the cover of the datasheet the power supply of your ASEK71020KMAB-090B3-I2C and your Micro-...
1
vote
What's an idiomatic way to detect posedges inside a FSM in Verilog?
Normally, you wouldn't do that kind of edge detection directly inside the state machine. Instead, you'd have a separate process for that:
...
- 178k
1
vote
Accepted
strange array values (C, psoc, usbuart)
the problem was that my character array holding the data to send over UART was not large enough to hold the information i was trying to send.
this line in the code--
...
- 75
1
vote
How does this resistive pull up and resisitive pull down circuit work?
The purpose of the buffer is to reflect the value of the Pin at all times. For this circuit, all you have to ask yourself is 'what is the ...
- 1,824
1
vote
PSOC 5 interfacing with PIR sensor
Instead of reading from the PSOC, I'd read from a simple digital port and put a switch on it. Then you can debug your code before finally introducing the PSOC register reads.
- 22k
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