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This solution solves the issue on, how to detect either one or more bits are active in a bit array. The technique is quite easy, just isolate one of the bits. This can be done by the same technique as known from the arbiter implementation. Calculate the two’s complement of the bit array signal and Continue reading →

Here a very cute method to implement an FPGA round robin arbiter, inspired by [1]. Assumption Incoming signals “req”/”ack”, outgoing signal “grant”. Needed Behaviour req = “0001000″ => grant = “0001000″ -ACK- grant = “0001000″ req = “0011000″ => grant = “0010000″ -ACK- grant = “0001000″ -ACK- grant = “0010000″ … Technique To create a Continue reading →