Add backpressure to flash write protocol#33
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handle_flash_write now sends per-packet ACK (matching handle_write). write_flash reuses _write_block for consistent backpressure behavior. Flash write still fails at ~1MB due to FMC soft reset accumulation during page programming. RAM write (16MB) verified at 921600 baud. Flash write needs further debugging of fmc_enter_boot impact. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Fix progress display: use plain print() instead of Rich console.print() which was adding newlines instead of overwriting in-place via \r - Scale CRC32 verification timeout with data size (~1s/MB) to avoid timeout on large reads (16MB was timing out at 10s hard limit) - Show "Sending Agent" instead of "Sending U-Boot" during agent upload - Document flash agent commands in main README Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- `agent read` no longer requires -a and -s; defaults to 0x14000000 and queries flash size from the device via get_info() - `agent write` defaults -a to 0x14000000 - `agent read` -o defaults to flash_dump.bin - Update README examples to show the simpler invocation Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
_write_blockhelper with retry logic (up to 3 attempts per block) instead of inline send loopTest plan
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