added silent option to PF
added silent option to PF

nimble-dev/nimble,nimble-dev/nimble,nxdao2000/nimble,nxdao2000/nimble,nxdao2000/nimble,nimble-dev/nimble,nxdao2000/nimble,NLMichaud/nimble,nimble-dev/nimble,NLMichaud/nimble,nimble-dev/nimble,NLMichaud/nimble,NLMichaud/nimble