PSoC™ 4 Forum Discussions

Hello,

I have a question with internal pull-ups for PSoC 4 device (CY8C4014FNI-421AT). As per datasheets it can be seen that I can enable internal I2C 5.6 KOhms weak pulls ups through the below commands in firmware.

   SCB_scl_SetDriveMode(SCB_scl_DM_RES_UP);

   SCB_sda_SetDriveMode(SCB_sda_DM_RES_UP);

Can you please advise whether using internal resistors on I2C data & clock lines provides similar performance as that of the external pull-ups and we can eliminate the use of external pull-ups to save space in the design?

Best Regards,

Nandhini Jayapandian

In datasheet of PSoC 4100S Plus, it is said "There is no analog regulator; the analog circuits run directly from the VDD input. ".

Then if anolog supply is variable, how can analog circuits (such as SAR_ADC, Op-amp) work well and keep reference voltage constant to ensure accurate signal without analog regulator?

Q1:

In datasheet of PSoC 4100S Plus, it is said "There is no analog regulator; the analog circuits run directly from the VDD input. ".

Then if anolog supply is variable, how can analog circuits (such as SAR_ADC, Op-amp) work well and keep reference voltage constant to ensure accurate signal without analog regulator?

Q2:

For VDDA and VDDD, is it better to offer independent analog and digital supply?

Q3:

For bypass capacitor between VCCD and VSSD, What is the recommended capacitance value? 0.1uF or 1uF?

Hi

I am working on an HMI CapSense touch button for Automotive application, I need total 18 Touch buttons + 1 Slider(23 Pins for Touch buttons). For all my 18 touch buttons I need bi-colour Backlight. When the system is ON all the buttons should light (white colour) and which ever button is enabled that button colour should change to Amber. Please suggest how do I drive these LED’s, do I need 36 GPIO pins (18+18) for LED’s or is there any other way to control colour of Backlight of each buttons. I am using PSoc4100sPlus Auto Qualified PSoC

Thanks

Can I use PGA components with the PSoC 4500S series?

In PSoC Creator 4.3, I can not select it.

If components can not be able to used, how can I use opamp as a PGA?

Best Regards,

Inoue

您好！

目前程序编译后，发现flash空间不够用了，我这仪器代码量128k应该是够了的，ST的64K也够用，现在程序还没写完，显示已用97.9%，现在程序存储数据就不对了，请问是不是哪些东西比较占用空间？

谢谢

Hi!

Is it possible with some internal magic to get a more flexible pin-placement for I2C SCL/SDA signals on the psoc4L series?

Thanks

Hi everyone! I am a student working on a senior project using CYBLE-212006-01 to communicate through SPI with the ATWINC1510-MR210x. Does anyone have a working function of SocketInit() or tips for getting started? Any help or resource would be greatly appreciated. We have been using this software guide http://ww1.microchip.com/downloads/en/devicedoc/atmel-42418-software-programming-guide-for-atwinc1500-wifi-using-samd21-…  but it does not use the CYBLE component.