PSoC™ 5, 3 & 1 Forum Discussions
Greetings! I'm running into a pretty serious problem with a PSoC 3, specifically the CY8C3446LTI-073.
I've created a custom PCB and have been working on the UART aspect of the design, but I've hit a wall. I know I have signal getting into the board, based on its behavior and separately verified with a scope. I have no transmit. The sending system receives no response from the PCB, and reading the pin with the scope shows zero activity.
I've thoroughly reviewed the electrical design of the board, and while I found a few spots where I can improve the design, I found no evidence that the design is the inhibitor. Checking the board with a meter, I find no shorts to power, ground, or otherwise. I have a solid connection between the chip and the associated input pin on the connector.
I'm at a loss to explain why I can receive but not transmit. I've included the test project file I've been using for context. Please advise.Show Less
We are looking for a more powerful CY8C5888LTI-LP097W. The specificity of this chip is:
Four programmable analog blocks, to create:
- Programmable gain amplifier (PGA)
- Transimpedance amplifier (TIA)
- Sample and hold circuit
Is there a more performing version in the pipeline?
Rather than pre-programming PSoCs, I'd like to build my circuit boards then update the PSoCs over I2C.
This process supports updating the application. I'd also like the option to update the bootloader.
The circuit board is already designed and the I2C is the only active interface connected to the PSoC.
Can I write a bootloadable application to replace the bootloader, similar to how the bootloader replaces an application?
I have a question about cyw54591. Does this SoC have two physical independent wifi interfaces? This means separate MAC addresses and the ability to work like two wifi cards? I need to use two independent wifi modules in the project, working at the same time and having two separate IP addresses, and I'm wondering if cyw54591 will let me do it using one SoC.Show Less
Hi There !
I would need help to decipher which is the cell's excel format .
I know that it uses CSV but maybe this do not apply for just one cell.
I am testing send the cell's content with a Uart component.
I was succesful to send data from PSoc 5LP to excel using serial comunication through the Datastreamer.
I tested the code sending character and numbers from Real Term and the code is working.
Sending some data from excel I got the following patern.
|Cell content sent||string received on LCD|
|1||1 , , , ,|
|2||2 , , , ,|
|11||1 , , , , ,|
|222||22 , , , ,|
|123||13, , , ,|
|256||26, , , ,|
According to some arduino code you find in youtube ther should be a line feed character ( 0x0A) and then
you now that the string sent by excel is complete but I did not find such LF char.
If someone has any idea in this regard I would appreciate it.
I want to ask some questions about driving the Delta Sigma ADC on PSoC 5LP. First, a bit about my use case: I want to use the Delta Sigma ADC to measure very small currents in the 100's of nA up to 100's of uA. I've already shown I can do this pretty well with pretty good accuracy with previous versions of this device. I'm using the ADC configured in 20 bit resolution and sampling at the max rate about 180 times per second. Also I am multiplexing 14 inputs to it.
For my latest revision I thought it wise to buffer then apply a low pass filter in an attempt to provide the cleanest signal possible to the ADC. The reason I am buffering first is I am also sending that signal to a comparator for fast overcurrent detection. Here is a schematic of the buffer/filter:
But recently I noticed this specification in the datasheet:
So my biggest question is am I wasting effort and money (and adding more offset) by applying a filter when the bandwidth is already so low? In the schematic above the cutoff frequency is 50 Hz. I even am prepared to increase that frequency due to slow settling time and my multiplexing of all the inputs.
Some more details before you ask: I am sort of stuck with low-side, single ended measurement because I am pretty much out of GPIOs. I might consider switching to an instrumentation amp though and "elevating" the sense resistor above ground for better noise cancelling (let me know thoughts on this). I could be convinced to use a GPIO expander to regain pins for differential ADC measurement too though...
That's the gist of it, I welcome any and all input to this problem, and thanks in advance for any help!
I would like to know about the product part numbers of PSoC Edge ARM Cortix MCUs. Is it available in market for purchase? Please provide the brochure.
I could not find part numbers in this category. I am interested in Edge ARM Cortix MCUs only.Show Less
Like the title said, is it possible to have a Psoc Creator project with part of the top design as a library kit, and another project to use this project? I saw Psoc creator allows dependencies in a project, but don't know how to use that effectively.