Signal slope control system

The utility model relates to a signal slope control system, including main control chip, level output circuit, drive circuit and time adjustment circuit, main control chip passes through the level output circuit and links to each other with drive circuit, main control chip still links to each other with drive circuit, drive circuit passes through the time adjustment circuit and opens the hourglassbus to link to each other, it is used for connecting main equipment and sends behind control signal and the enable signal with slave unit main control chip open to leak the bus, the level output circuit is according to control signal to the drive circuit output high level, drive circuit is time output pull -up voltage according to enable signal and high level, the time adjustment circuit is received behind the pull -up voltage, it can adjust out the rise time who leaks the bus further to change the varistor value, this scheme can be adjusted the signal slope according to the slave unit of difference, match optimalizi