2019-08-03 09:46 PM
hi
im using STM32F746BGT6 for long time in quantity and everything was ok . but now days i get stock with 4 of them . when i was trying to program them with jlink , i got a massage about read protect but i was careless in each 4 time and select " yes" . the program was write successful but STM had no action . i check all the possible solution and at last i found the error . there is a 50 HZ pulse on its RESET pin . im sure its not any other of hardware problems (watch dog or etc ) . i could connect with stlink to it , erase and re-program it , but the problem didnt fix
. im sure its not program or other hardware section problem
im sending a picture of that pulse on the reset pin in attachment