Hello,

I have been using Zephyrwith the  cy8cproto-063-ble module, and I need to implement a high-speed SPI driver. Unfortunately, the Zephyr driver overhead gives each transfer a ~25us extra delay to every SPI transfer, which is too much for our application. 

I figured using HAL would be faster, but I can't find any examples of how to pull in HAL from Infineon devices. I've set the flag `CONFIG_SPI_INFINEON_CAT1=y`in my prf.conf and used `#include <cyhal.h>` and `#include <cy_scb_spi.h>`, but  linking fails with messages such as `undefined reference to cyhal_spi_transfer`.

I would appreciate any help !

Best

I have a custom BSP based on a Cy8C6137BZI-F14 running on the CM4 (we're not doing anything with the CM0). In this project, the CLK_FAST is initialized to 8 MHz, CLK_HF0 is 96 MHz and sourced from the FLL (also 96 MHz) which is sourced from the ECO at 16 MHz.  We do change the FAST clock around between 8 MHz / 24 MHz / 48 MHz and are making the appropriate calls to Cy_SysLib_SetWaitStates() and SystemCoreClockUpdate() upon doing so. Our project is using FreeRTOS and in the vApplicationSleep(), before we enter Deep Sleep via Cy_SysPm_CpuEnterDeepSleep(CY_SYSPM_WAIT_FOR_INTERRUPT), we disable the LVD. Upon exiting Deep Sleep, we re-enable the LVD. Per the Infineon PDL manual and TRM, it is required to have a 20uS minimum delay to avoid false interrupts (learned from experience). In our development, 20 uS did not seem to be sufficient, so ended up increasing it to 35 uS.

I have just encountered an issue with the false LVD trip again upon coming out of Deep Sleep, so have been digging into this again. This issue is only observed when the debugger is not attached (typically running a Custom config with optimization level set to -O1). I have increased the delay to 50uS and still getting the reset. Trying to figure out why, I added a GPIO toggling low prior to Cy_SysLib_DelayUs(50) and return the GPIO high afterwards. And to my surprise, the delay is only taking 24uS! I tried increasing the delay to 75 uS and on my logic analyzer, it is taking 32.5 uS! After digging around in manuals again, I was not coming up with any reasoning, I tried setting the PSoC SystemCoreClock variable to volatile with no change in behavior. Out of curiosity, I then called SystemCoreClockUpdate() immediately upon exiting Deep Sleep, so before the LVD is enabled and Cy_SysLib_DelayUs() being called. Low and behold, the delay is now as it is supposed to be!

I've been poking around on the community but not finding any direct examples of others having the issue. https://community.infineon.com/t5/PSoC-6/Frequency-Calculation-bug-when-using-ExtClk-but-ok-with-IMO/td-p/390114 seems similar, but not quite. Is it stated somewhere that SystemCoreClockUpdate() is supposed to be called upon exiting Deep Sleep? The manual for Cy_SysPm_CpuEnterDeepSleep() states, "This function changes the slow and fast clock dividers right before entering into system Deep Sleep and restores these dividers after wakeup" so the clocks are returned to what we expect them to be, but is there possibly a bug that is not recalculating the variables used in the system delay functions?

Cheers

Hello,

After a long absense from Cypress technology,  I have returned to investigate replacing the PSoC 3 we have used in our ham radio products for years with a PSoC 6.   I have obtained the CY8PROTO-063-BLE prototype kit as a start of my investigations.

Using PSoC Creator 4.2 the first snag I hit was the CYBLE-416054-02 was not in the device selector.   An internet search revealed this was an easy fix by going to tools-> find new devices.   OK,  good now I have the device.  

I am following this guide:  https://www.infineon.com/dgdl/Infineon-CY8CPROTO-063-BLE_PSoC_6_BLE_Prototyping_Board_Guide-UserManual-v01_00-EN.pdf?fileId=8ac78c8c7d0d8da4017d0f00d7eb1812 to get my feet wet with programming the PSoC 6.   But of course the program will not build with the following error:

What does this error mean and how do I fix it?

Regards,

Ron

Hello!
I'm a beginner
I want to read the BME280 sensor using I2C communication on my project...
I am using PSoC 6 + PSoC Creator 4.4 + BME280
But I don't know how to start!
Can someone assist me?
Thanks