PSoC™ 4 Forum Discussions

I need to fit an ellipsoid to a set of data in 4 dimensions.  After a lot of investigation, I settled on the TSQR method in the GNU Scientific Library (GSL).  

Using a Cygwin shell, I wrote a test program.  The results are accurate, and use only a tiny fraction of the resources of other methods.  (TSQR does not require all data points to remain in SRAM while finding the solution.  Please don't suggest another method unless it also has this capability.)

I would now like to port the code to my PSoC4.  How do I install the GSL library in PSoC Creator?  I have seen references to GSL in other forum posts, but no instructions for how to install it.

Thank you, in advance.

Hi,

We have a PSOC4 MCU with BLE integrated in our product and we are beginning commercialization of our product and setting it up for global sales. 

We would like to know for how long would there be support for the generated source used in our product? We ask so that we know that if, for example, a critical bug were to be discovered in your BLE module generated source, we could expect one day an update of that module source code. 

So what is your policy with regards to support timeline for your generated source code? 

Thanks.

I have a design where I'm reusing SWC and SWDIO.  No, I'm not out of pins, but I want to be able to access these pins externally to the device.  It has a DB-9 with a couple of pins that are used as inputs.  So I configured it to use the SWD pins as GPIO.  According to the documentation, I can't debug that way, but I can re-program the device, because the programmer asserts reset and gains control of the pins.  The device is Cy8C4247LTI-M475 and the programmer is KitProg2 from a CY8Kit043.

But when I go to program, the KitProg2 never asserts XRES and fails to acquire the target.  It is putting appropriate waveform on the SWC and SWDIO pins, but the target isn't responding (presumably due to the lack of reset).  What am I missing here?  At present, I have no control over the target CPU to even change the SWD setting.

Thanks,

Wilton

P.S.: I tried this both with PSOC Creator 4.4 and with PSOC Programmer 3.29.1, both with the same result.

P.S.2: XRES is indeed being asserted, but it is very weak.  With no load at all, it only falls to about 1 V.  With a 10k pull up (which I put on the target board to prevent accidental resets from noise, there is no hint of a reset pulse.  This doesn't seem normal to me.  Interestingly, the first time I programmed the target, it worked fine, but I have been unable to connect to it since.

P.S.3: The KitProg reset output is also very weak at pull up.  A 1 k resistor to ground basically killed it.  But using a 10 k resistor to ground and a CMOS buffer, I was able to reproduce a reasonable reset signal, but still no luck re-programming the IC.  I've order more KitProg2s in case this one is damaged.  I don't think the reset output should be  so weak.  The other signals (clock and data) look fine, but it still isn't communicating with the IC.

Hi, community,

I am looking for a way to easily change only the hardware settings in a project where the processing done in main.c is exactly the same.
For example, I am thinking of a way to switch and build only a config file that has been prepared in advance for multiple parameters, such as manual tuning of capsense.

As a test, I added new_design.cycapsense to the default design.cycapsense, but the build failed with a "cyforcebuild.mk" error.
Please tell me how can I build with multiple config files in one project?

I'm using Modus tool box 3.1 and capsense configurator.
Here is the error I get after adding the second config file.
make: *** [../mtb_shared/core-make/release-v3.2.2/make/core/search.mk:45: C:/xxxx/MSC_CAPSENSE_CSD_Button_Tuning/build/APP_CY8CKIT-041S-MAX/Debug/cyforcebuild.mk] Error 1

Best Regards,
Chihiro Tatebayashi / NEXTY

Hi Community, I'm working on CY8C4245AXI-483 controller for my Touch Switch Application. I'm using Interrupt for Touch Detection and wants to do it without Interrupt since I need to Implement a new Feature in which I need to Touch and Hold my Capacitive Touch Sensor and while the variable increment is going on I'll be Pressing some desired button on my remote which will do specific task. So If I'm already in the loop for Touch Detection, Can I use the IR Interrupt in between?

I have been trying to run a WS2812 RGB+IC LED with a small PSoC 4 device which has no UDB's.  I can not seem to get my timing fast enough.  Seems like with a 24MHz part I should have no problem bit banging an IO pin to run this WS2812 LED.  Could some one who has used this type of part, possibly look over my code and setup to see where I am going wrong.  My code is simple just drives a single LED(pixel).

When I run WS2812_sendPixel(0, 0, 0) routine my zero sequence runs 880nS which is to slow.  Looking for 400nS or less.

Also when I run WS2812_sendPixel(255, 255, 255) my code seems to run right but data sent out is not symmetric, the last 3 bits are not like the first 4 bits.

I have attached my project.  The PSoC4 device I am running is CY8C4025LQI-S402T