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| 14:51.18 | kristianpaul | xiangfu: what happended with the other only tx hdl code? |
| 14:51.42 | kristianpaul | I was wondering if the fpga4fun one was the only avaliable core... |
| 14:52.21 | kristianpaul | Btw i dint knew it about this BSCAN_SPARTAN6 |
| 14:52.50 | xiangfu | (what happended with the other only tx hdl code?) what do you mean? |
| 14:53.56 | kristianpaul | it dint work for you? |
| 14:54.29 | kristianpaul | or you need rx as well as tx? |
| 14:54.42 | kristianpaul | i mean the serial/uart core you was looking last time |
| 14:54.53 | xiangfu | oh. |
| 14:55.07 | xiangfu | I look at fpga4fun serial code. |
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| 14:56.14 | xiangfu | I connect the Rx_data under the verlog code. : http://pastebin.com/JqHSYnhq |
| 14:57.58 | 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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| 14:58.28 | xiangfu | I try to input data form serial core. and read the data out by using jtag. |
| 14:59.11 | xiangfu | I can control LED by using BSCAN.. but i want more exactly data. |
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| 14:59.41 | kristianpaul | Yeah i was about to ask you that (control by bscan) |
| 15:00.46 | xiangfu | BTW: I wrote a mini-jtag for learning: https://github.com/xiangfu/mini-jtag |
| 15:01.00 | xiangfu | that can re-configure/read idcode/load bistream to slx9. |
| 15:01.23 | xiangfu | I have tested the code with m1. it works fine with m1(slx45) :) |
| 15:01.29 | kristianpaul | Yeah i noticed it too :-) |
| 15:01.46 | 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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| 15:02.03 | kristianpaul | yup, looking at it |
| 15:07.39 | kristianpaul | had you asked to azonenberg? perhaps you can use his uart core, so it can distributed in your examples |
| 15:08.00 | kristianpaul | n8 :) |
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| 15:29.45 | whitequark | this is a capture from an UART between an STM32 chip and a CP2102 USB-to-UART transceiver |
| 15:29.49 | whitequark | http://plasmon.rghost.ru/40100131/image.png |
| 15:29.52 | whitequark | why could it look like this? |
| 15:30.16 | whitequark | i.e. very high ripple |
| 15:30.58 | qi-bot | The build was successful: http://fidelio.qi-hardware.com/~xiangfu/build-nanonote/openwrt-xburst.minimal-20120829-1259 |
| 15:32.22 | whitequark | I guess it's due to parasitic capacitors and inductors somewhere in the circuit |
| 15:35.37 | 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?.. |
| 15:36.54 | whitequark | hm, how would that help? |
| 15:36.56 | whitequark | I don't quite get the idea |
| 15:37.17 | kristianpaul | well you just said have to separate boards? |
| 15:37.35 | kristianpaul | or both ICs are in the same pcb? |
| 15:37.41 | kristianpaul | perhaps i was confused |
| 15:37.49 | kristianpaul | help to debug.. |
| 15:38.34 | whitequark | same pcb |
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| 15:53.04 | rzk | whitequark: place 10ohm inline |
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