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11 years, 11 months ago. This question has been closed. Reason: The answer fixed the problem
FDRM-K64F Not working RED LED blinking after reset button
FDRM_K64F Board was working and running my very simple programs.
All of a sudden it would no longer load and run my simple programs. After reset RED LED blinks
Went thru firmware reload of "k20dx128_k64f_if_mbed" to disk "bootloader.htm"..
Still same problem after reset to disk "mbed.htm" RED LED is blinking about 3 or 4 times a second.
Noticed when hitting reset a red led lights on
next to green status led when holding reset down.
Any suggestions to getting back to loading programs.
2 Answers
11 years, 11 months ago.
If you fall off the end of main() you will get this too.
Have you made sure that main() never exits?
11 years, 11 months ago.
That looks like the error blink, via the usb serial connection you are probably getting a message. Most times it is due to making for example SPI on pins which do not support SPI. Otherwise try example blink programs, or post your code here.