PSoC™ 4 Forum Discussions

Hello, 

I want to store the generated .cyacd file from a bootloadable project into an embedded host. The embedded host a RAM size of 128KB.  My project's .cyacd file is 195KB. I am looking for ways to shrink this image so that I can store it in the embedded host. This is needed so that I can bootload the firmware image onto CYBLE-012011 from the embedded host flash instead of downloading it from a server. 

Also, what is the difference between .cyacd file and .hex file? Why are we using .cyacd file for bootloading using an embedded host?

Out of curiosity, I have created an empty project and placed a few components in it. Without application code the generated hex file is about 282 KB and .cyacd file is about 7 KB. With my application code, the .hex file is still 282 KB but the .cyacd file grew to 195 KB. I don't get this. The .hex file size is always the same? Any ideas?

Thanks
Dheeraj

Hello,

I'm working with the MADY40 C# example. I'm seeing some strange behavior where multiple identical instances of a device will show up in the scan list. This issue is intermittent.

Has anyone else seen this? 

Thank you!

Helen

Hi,

I'd like to use the SCB UART of a 4200 PSoC4 with the possibility to recognize the states (begin and end) between the transmitted data on the receiver side: IDLE (mark) and SPACE (break).  Further, I need the possibility to send the break level for the defined time on the transmitter side. Obviously these all are standard functionalities of each simple UART chips but I couldn’t find the way to solve it with the SCB UART. Can anyone help?

regards

wadak

Hi,

My development tool can connect to CY5677 usb dongle, but it can't work correctly when I pressed "pair" button to enter pairing flow(LE Secure Connections and Justwork authentication).

At first, CY5677 would send pairing request, then I send "pairing response" and followed by "pairing confirm(slave)". But CY5677 seems not to receive "pairing response" because CY5677 don't send "pairing random" and CySmsart pop up "AUTH_ERROR_AUTHENTICATION_TIMEOUT" a few seconds later.

I found it strange that after we sent "pairing response", my ble sniffer showed "crc error packets" from CY5677 at the next connection event. 

However, I tried to set "SC bit(secure connection)" to 0 to request LE legacy pairing, it works fine! 

I don't know why happened with CY5677 and how to pair with LE Secure Connections properly.

thanks!

I've just started reviewing the PSoC Analog Coprocessor as want to use it with a pyroelectric sensor for motion detection, but wondered whether I can attach multiple PIR sensors to the chip directly as it appears that the CY8C4Axx chips have multiple opamps. If so what is the maximum number of sensors I can attach and what is the limiting factor (e.g. number of opamps or some other constraint on the chipset).

Thanks.