CAPSENSE™ & MagSense Forum Discussions
Hello,
I want to use a PSoC 4 device to continuously measure the raw capacitance of a two terminal capacitive sensor. The examples I found seem to detect changes in capacitance beyond a certain threshold, rather than measuring and outputting the raw capacitance value across two terminals. How would I do this? Are there any examples to follow?
Thanks!
Show LessWho can I contact to get Cypress CapSense support?
None of the original links in the datasheets seem work and I can't find the information to get started.
Also, where is the roadmap?
Eval boards?
Application notes?
We are Australia based.
Regards
B
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CY8CKIT-046
Sample code: CapSense Buttons
→Launch Tuner
→Read operation failed! Check I2C bus connection
Please tell me the above correspondence
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We are trying to use serial debug data from CY8CMBR2044. In the datasheet, a 41-byte packet is specified, however the chip is sending 71-byte data packets. Where can we find the specification for 71-byte packets? A 71-byte packet example:
0D 0A 00 03 0D EC 0D A9 0D A1 00 00 00 01 02 01 01 01 01 BB 36 34 34 11 08 08 0D EC 0D A9 0D A1
00 00 0B 00 0C 0C 0C 01 6C 68 68 00 20 00 00 08 B6 34 34 15 F4 01 00 00 27 29 29 80 01 01 01 89
1B 1A 9A 31 80 FF FF
In a design with PSOC4 chip with 4 different sensors that are routed in a similar way (trying to respect as much as possible the recommendation rules), we are experiencing differences between sensors sensitivity. Trying to solve this issue, we did not reach good enough results using the tuning process that appears in the guidelines.
However, we have noticed that the default sensitivity value (normally too high by default in our case) can be reduced adding a pull up resistor closed to the sensor (between the sensor and the recommended serial resistor).
We are wondering if anybody in the community has experienced such sensititvity problems than cannot be adjusted by tuning process ? and if somebody has an electrical reason why this pull-up resistor is lowering the default sensitivity level of a sensor?
Any help on this will be appreciated.
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Hello community,
currently we are developing a proximity button with the CY8CMBR3102-SX1I chip. But we have EMC problems with wired RF test (0,15-80mhz) and wireless RF test (10V/m 80-3000 mhz). All of the software filters in EZ-Click are activated and the pcb is designed as in the design guide recommended. The circular antenna has a diameter of 30mm and a ground ring around it.
Has anyone experience with emc issues and the CAPSENSE technology?
best regards
pcb_user_17834
Show LessDear Sirs and Madams,
Please tell us about the data programmed in MBR3.
Currently, MBR3 and a host device are connected via I2C.
Is it possible to read the data in the flash area programmed in MBR3 from the host?
We would like to verify and compare the programmed data of MBR3 by the host device.
I confiemed for datasheet and TRM, but I don't think it can read the data in the flash area. Is this recognition correct?
Regards,
Show LessHi,
I have a capsense sensor to sense liquid level in a tank. I have thresholds that move according to temperature which seems to work fine. I am having a problem where the capsense output gets stuck at ~49151 on some sensors.
Has anyone ever seen this before or know how to rectify it ? I am performing resets of the capsense board every 30 seconds, but I have also tried without the resets, same problem.
Many thanks,
Pat
Show LessDear Receiver,
In the attached file, I use manual turning. But I meet two kinds of clock parameters make me feel confused.
1. "modulator clock frequency": how this parameter effect cap-sense performance ?! If I select higher clock or lower clock, what's the corresponding result ?!
2. "sense clock frequency": how this parameter effect cap-sense performance ?! If I select higher clock or lower clock, what's the corresponding result ?!
Besides, how to select the sense clock source ?! auto, direct, PRS8 and PRS12. how to select them in a proper way ?!
In fact, I know these parameters are explained in the manual but I still feel so confused. So I asked my question in here.
Hope I can get your kindly feedback.
Thank you so much.
Show LessHi everyone! I'm using CapSense block V7.0 with PSoC Creator 4.2. Communicating via MiniProg4 (I2C-USB bridge). Problem is the connection to Tuner. I have managed to connect to Tuner, several times, but always with exactly the same .hex. Now, I have changed .hex, and now connect process fails, indicating checksum mismatch. I have downloaded the .hex via Debug->Program, and also with PSoc Programmer. Both processes have been success. But, when opening Tools->Component Tuners->connect, it fails. "Mismatch checksum for the data stored in the device and the data loaded into the Tuner (expected: 0xBD36, obtained: 0x8034)" which by the way neither is the checksum read from programmer! Any ideas?
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