PSoC4: Unable to read data from the target device. | Cypress Semiconductor
PSoC4: Unable to read data from the target device.
I have a CY8CKIT-049 PSoC 4 Prototyping Board, programmed via Bootloader.
It has been working fine until now, but for some reason I can no longer program it
via the bootloader host; it gives error message:
Communication port reported error 'Unable to read data from the target device'.
I have plugged in the board with button held closed, and the blue LED is flashing,
so it is ready for program load. The port is listed and selected in the "Ports" panel.
I have also tried the PSoC Programmer.
On launch this finds the correct family (CY8C4xxx) and device (CY8C4245AXI-483),
but the field at botton right shows "Not Connected" and is red. The main panel says
I should Select Port in the PortList, then try to connect.
But there is nothing listed under Port Selection.
The Help manual suggests setting various things, such as Programming Mode, but all
these options are "grayed out" ie not selectable.
I've had similar problems in recent past, and I think you suggested I upgrade the firmware.
But Upgrade Firmware button is also "grayed out". The Cypress Update Manager
says No Updates Available.
Between last week, when all was OK, and now, I have not made any updates or changes to
software revisions, so I cannot understand why it no longer works.
The Build is Ok, and the program code that is the device at present works correctly.
As I say, something like this happened in the past, and I recall it took me a long
time with Forum help to get it fixed. It is very time-consuming and frustrating!
Sorry about the gripe, but can you help again?
Many thanks, Ken.