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2012-08-30 14:51 <kristianpaul> xiangfu: what happended with the other only tx hdl code?
2012-08-30 14:51 <kristianpaul> I was wondering if the fpga4fun one was the only avaliable core...
2012-08-30 14:52 <kristianpaul> Btw i dint knew it about this BSCAN_SPARTAN6
2012-08-30 14:52 <xiangfu> (what happended with the other only tx hdl code?) what do you mean?
2012-08-30 14:53 <kristianpaul> it dint work for you?
2012-08-30 14:54 <kristianpaul> or you need rx as well as tx?
2012-08-30 14:54 <kristianpaul> i mean the serial/uart core you was looking last time
2012-08-30 14:54 <xiangfu> oh.
2012-08-30 14:55 <xiangfu> I look at fpga4fun serial code.
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2012-08-30 14:56 <xiangfu> I connect the Rx_data under the verlog code. : http://pastebin.com/JqHSYnhq
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2012-08-30 14:57 <xiangfu> kristianpaul, there is a quiet good example on BSCAN_... : https://github.com/progranism/Open-Source-FPGA-Bitcoin-Miner/blob/master/projects/X6000_ztex_comm4/hdl/jtag_comm.v
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2012-08-30 14:58 <xiangfu> I try to input data form serial core. and read the data out by using jtag.
2012-08-30 14:59 <xiangfu> I can control LED by using BSCAN.. but i want more exactly data.
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2012-08-30 14:59 <kristianpaul> Yeah i was about to ask you that (control by bscan)
2012-08-30 15:00 <xiangfu> BTW: I wrote a mini-jtag for learning: https://github.com/xiangfu/mini-jtag
2012-08-30 15:01 <xiangfu> that can re-configure/read idcode/load bistream to slx9.
2012-08-30 15:01 <xiangfu> I have tested the code with m1. it works fine with m1(slx45) :)
2012-08-30 15:01 <kristianpaul> Yeah i noticed it too :-)
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2012-08-30 15:01 <xiangfu> kristianpaul, (control by bscan) then take a look at : https://github.com/progranism/Open-Source-FPGA-Bitcoin-Miner/blob/master/projects/X6000_ztex_comm4/hdl/jtag_comm.v
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2012-08-30 15:02 <kristianpaul> yup, looking at it
2012-08-30 15:07 <kristianpaul> had you asked to azonenberg? perhaps you can use his uart core, so it can distributed in your examples
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2012-08-30 15:08 <kristianpaul> n8 :)
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2012-08-30 15:29 <whitequark> this is a capture from an UART between an STM32 chip and a CP2102 USB-to-UART transceiver
2012-08-30 15:29 <whitequark> http://plasmon.rghost.ru/40100131/image.png
2012-08-30 15:29 <whitequark> why could it look like this?
2012-08-30 15:30 <whitequark> i.e. very high ripple
2012-08-30 15:30 <qi-bot> The build was successful: http://fidelio.qi-hardware.com/~xiangfu/build-nanonote/openwrt-xburst.minimal-20120829-1259
2012-08-30 15:32 <whitequark> I guess it's due to parasitic capacitors and inductors somewhere in the circuit
2012-08-30 15:35 <kristianpaul> perhaps you could do a loop in both devices send data and repeat the capture again to isolate a posible problem in one of then?..
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2012-08-30 15:36 <whitequark> hm, how would that help?
2012-08-30 15:36 <whitequark> I don't quite get the idea
2012-08-30 15:37 <kristianpaul> well you just said have to separate boards?
2012-08-30 15:37 <kristianpaul> or both ICs are in the same pcb?
2012-08-30 15:37 <kristianpaul> perhaps i was confused
2012-08-30 15:37 <kristianpaul> help to debug..
2012-08-30 15:38 <whitequark> same pcb
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2012-08-30 15:53 <rzk> whitequark: place 10ohm inline
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