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originally posted by badomen@Jun 30 2006, 05:02 PM
also to add to the last post, be carefully with the offchip signals as well. rs232 is not encoded to combat noise like most modern serial standards. i've seen in the past just the noise off a busy board cause 25% error rates and that was only running 56kbps. imagine what will happen at 1mbps and environment noise thrown on top of that.
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UARTs in SOPC Builder are configurable. You need to make the divisor register writeable in SOPC Builder and then you can initialize your UART to run at your desired rate. If you use properly shielded cables and other good EMI design practices you will have no worries with RS232. If error rates are a concern then packetize your data and do a CRC check on the packets.
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