PSoC™ 4 Forum Discussions

Hi,  guys:

I modified AN89056_FLASH from AN89056 sample code and tried to run on PSoC4100S+256K (CY8C4148AZQ-S455). But I got error message as following:

Test Counter = 007E
Error: FLASH
FLASH CHECKSUM: D6117B4D252189BB

The test failed always on test counter 007E. But I don't understand why since it is successful between test counter 00 to 7D. Can anyone help on what's wrong.

BR, Maurice

I have a CY8C4246PVI-DS402 that I am using to control a LIN module based on an input trigger. The input trigger comes form a NC solid-state relay. When I apply the ground trigger, the output voltage is removed, and the LIN module transmits the correct messages. However, when I remove the ground trigger, it seems that my MCU is damaged. When I reapply the ground trigger, the LIN module no longer transmits. I'm also no longer able to program the MCU.

My software only monitors the trigger input to send the chip select and LIN messages to the LIN module. Also, the MCU clock is configured at 48 MHz.

This design has worked on previous projects. The only difference I notice is the my software has the clock at 48 MHz, while the older is at 24 MHz. Can relay noise combined with higher clock frequency damage the MCU? Any advice is appreciated.

Hi Support Team

The medical keyboard and industrial keyboard support USB or BLE connection or Touch. What components do you have for these application?  We plan to promote components for customer. Many thanks.

I frequently check data through SW Download and I2C communication with MiniProg4, but it can be inconvenient because the two ports are separated. So, I am using these two ports connected, and there is no problem. In the case of MiniProg4, can it be used by connecting SWD and I2C? Is it not a problem because SWD and I2C never operate at the same time?

Hi, I am using the Psoc 4100 s max  microcontroller in which CY8C4149AZI-S598 mcu used. Can you please help in finding out which pins we can configure for SPI communication in this microcontroller. I am unable to find out these and also dont have pinout diagram for that.

Hi, Community,

I am trying to do an I2C communication project with CY8CKIT-041S-MAX.

I have almost finished writing the code, but when I build, I get an error about Cy_SCB_I2C_Enable (cy_scb_i2c.h).
I found a similar phenomenon in PSoC6 post.
To solve this problem, I tried to add the necessary files in the library manager, but that did not solve the problem.

If you know the best way to deal with this error, please let me know.

The error message is as below:
C:/xxx/build/APP_CY8CKIT-041S-MAX/Debug/main.o: in function `Cy_SCB_I2C_Enable':
make: *** [../mtb_shared/core-make/release-v3.2.2/make/core/main.mk:374: secondstage_build] Error 2
make[1]: *** [../mtb_shared/core-make/release-v3.2.2/make/core/build.mk:422: C:/xxx/build/APP_CY8CKIT-041S-MAX/Debug/mtb-example-psoc4-empty-app.elf] Error 1
undefined reference to `sI2C_InterruptHandler'

Best Regards,

I am using Psoc Creator with cy8ckit-42 with a lengthy assembly file added to the simple blinky project. While the code has been building and running successfully and as it has gotten larger, adding an additional instance of a macro running correctly in other parts of the code causes the M0120 build error:

Build error: invalid offset, value too big (0x00000404)

The macro only accesses registers but has the instruction  "ldr r1,=0x00010000" The disassembly shows the constant is accessed with a pc offset in another instance so I guess it must be this offset that is too large. Is the only way to deal with this is to declare the constant in memory? Thanks very much.