An outcome of the slave codes in the southern colonies during the 1600’s was that

Due to the Slave Codes slavery became a more viable labor source because it allowed complete control over the slaves and established them firmly as property and not as fellow humans. another result of slave codes in southern colonies rules were established about how slaveholders could treat their enslaved workers. An enslaved person was defined as someone who could be bought and sold and on top of that  Rules were established about how slaveholders could treat their enslaved workers.

Hope my answer would be a great help for you.    

African americans at the time just came out of slavery and needed money to provide for there families. so they joined for the money mainly.