After the download is completed, there will still be a long wait time.

[RegulusSource]

After the download is completed, there will still be a long wait time.
Info : clock speed 10000 kHz Info : JTAG tap: xc6s.tap tap/device found: 0x24001093 (mfg: 0x049 (Xilinx), part: 0x4001, ver: 0x2) Warn : DEPRECATED: use pld name "xc6s.pld" instead of number 0
Info : JTAG tap: xc6s.tap tap/device found: 0x24001093 (mfg: 0x049 (Xilinx), part: 0x4001, ver: 0x2) Info : Found flash device 'win w25q128fv/jv' (ID 0x1840ef) flash 'jtagspi' found at 0x00000000
Info : sector 0 took 215 ms
Info : sector 1 took 170 ms
Info : sector 2 took 172 ms
Info : sector 3 took 172 ms
Info : sector 4 took 186 ms
Info : sector 5 took 202 ms

[ZhiyuanYuanNJ]

After the download is complete, you should specify the firmware to take effect in the CFG file. OpenOCD is mainly designed for embedded applications. The OpenFPGALoader project(https://github.com/trabucayre/openFPGALoader) is recommended, as it also supports CH347 and will make bitstream downloading and flash programming for FPGAs more convenient.