Sounds somehow the part gets latched up if you switch on the power. What filters do you have in the power-supply line? See recommendations in data-sheet please!
For entering the Download-Mod you must pull down the BM pin while resetting the part.
Sounds somehow the part gets latched up if you switch on the power. What filters do you have in the power-supply line? See recommendations in data-sheet please!
For entering the Download-Mod you must pull down the BM pin while resetting the part.