openwch / usb-jtag-spi Goto Github PK
View Code? Open in Web Editor NEWSingle-chip solution for Hi-speed USB2.0(480Mbps) JTAG/SPI Debugger based on RISC-V MCU CH32V30x/CH32V20x
License: Apache License 2.0
Single-chip solution for Hi-speed USB2.0(480Mbps) JTAG/SPI Debugger based on RISC-V MCU CH32V30x/CH32V20x
License: Apache License 2.0
你好,我想问一下如果针对xilinx-xc3s系列的FPGA进行下载需要怎么操作呢,我发现scripts文件夹下并没有这个系列的配置文件,请问这个配置文件是需要去哪里找呢?如果是需要自己编写的话,那它里面需要哪些参数呢?以及这些参数可以去哪里寻找呢
在openocd中下载文件时,出现了Info : This adapter doesn't support configurable speed的输出,是否意味着本项目的JTAG时钟频率是写死的无法修改呢?如果时钟频率只能选择最高,在从机速度慢或者接线条件差的情况下是否会导致无法使用的问题呢?
感谢分享项目,我使用ch32v307-evb测试了给xc7k325t下载比特流文件的过程,JTAG速度能够达到36MHz,和文档所描述的一致。不过我发现项目中sch文件夹下的原理图中,MCU部分TDO和TDI引脚的标志似乎标反了,应该是TDI对应PB15,TDO对应PB14,希望能予以改正。此外我也想提一个小建议,本下载器目前的命名——usb20jtag过于普通,如果能够改成wchlink-hs等更有标识性的名称并将代码推送给openocd上游,相信可以得到更多的关注。
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