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script: add jtag_close to release the current probe

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Lets a session hand a probe back (frees its USB handle) without opening
another, e.g. to flash two FPGAs on different probes in turn:
jtag_close, then jtag_open the next one and jtag_autoinit. Mirrors the
DeInit teardown jtagcore_loaddriver already does when switching drivers.

Also fix the help printer: no-arg commands (whose params slot is "")
printed an empty body because "" was treated as the terminator. Params
are now optional and the description always shows.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Foué
2026-05-24 10:48:01 +02:00
parent 70091cc4d3
commit 00320d87ec
2 changed files with 46 additions and 11 deletions
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README.md
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@@ -107,7 +107,7 @@ the full walkthrough (probe → proxy → flash) lives in
| Category | Commands |
|----------|----------|
| Script control | `set`, `print`, `print_env_var`, `if`, `goto`, `call`, `return`, `rand`, `init_array`, `system`, `pause` |
| Probe / chain | `jtag_probes`, `jtag_open`, `jtag_scan`, `jtag_autoinit`, `jtag_ndev`, `jtag_devices` |
| Probe / chain | `jtag_probes`, `jtag_open`, `jtag_close`, `jtag_scan`, `jtag_autoinit`, `jtag_ndev`, `jtag_devices` |
| BSDL / pins | `jtag_bsdl`, `jtag_pins`, `jtag_mode`, `jtag_pin_dir`, `jtag_pin_set`, `jtag_pin_get`, `jtag_push_pop` |
| I²C / MDIO / SPI over BS pins (EXTEST) | `jtag_i2c_scl`, `jtag_i2c_sda`, `jtag_i2c_rd`, `jtag_i2c_wr`, `jtag_mdio_mdc`, `jtag_mdio_io`, `jtag_mdio_rd`, `jtag_mdio_wr`, `jtag_spi_cs/mosi/miso/clk`, `jtag_spi_xfer` |
| FPGA registry | `fpga_list`, `fpga_info` |