SchemaHD vs D1Explorer

FPGAs can dynamically generate logic circuits by means of configuration bit streams generated by languages such as Verilog and VHDL. The generated logic circuit cannot be changed by communication data. Therefore, it is very safe and cannot be attacked by hacking, which is a problem with CPUs, to execute arbitrary commands. In addition, the generated logic circuits are all running simultaneously, so the highest performance parallel processing is being performed. It can also generate logic circuits using configuration bitstreams at very high speed. Most of the processing that can be done by the CPU can be done by the FPGA alone. With advanced security and the highest performace, FPGAs are the perfect device for the modern age. However, it takes a lot of effort to learn languages such as Verilog and VHDL. There are other methods such as high-level synthesis from C/C++, but they require a lot of adjustments such as #pragma, and do not maximize the capabilities of the FPGA. Schematics, not programming languages, are needed to maximize the capabilities of FPGAs and to further improve developer productivity. Schematics allow you to grasp the whole picture at a glance, and can perfectly represent parallel processing. SchemaHD is to draw a circuit diagram of a logic circuit, and it's possible to do generation of Verilog HDL and a simulation. A made circuit diagram can be used by a different circuit diagram immediately. You can also install wiring easily by touch operation. A concept of interface is adopted as a terminal, so something structured of a AXI bus can also be used. A terminal it's also possible to distinguish sound argument reason, negative logic and characteristic wiring of a clock and a reset by interface, and which is different in interface, they don't seem able to connect, it is. You can input and output as a JSON file, so the made circuit diagram and interface are also capable of cooperation with other application. Verilog HDL generated from a circuit diagram contains a comment of a terminal name and an instance name, so it's capable of the correspondence which is at the time of problem occurrence. A network connection isn't needed, so it's also effective in information leak prevention. A simple simulation is offered in the present, but it's expected to enhance it early.

D1Explorer is a native Cloudflare D1 client for iPhone and iPad that backs up before it writes. Browse, query and edit your databases, with cost projection and Time Travel restore. FREE TO DOWNLOAD Download D1Explorer free and connect unlimited Cloudflare D1 databases. Browse tables, run SELECT queries, inspect schema and preview BLOB/JSON cells. No account, no trial timer, no read limits. Unlock D1Explorer Pro with a one-time in-app purchase for every write feature: row inserts, updates and deletes, inline cell editing, table and column changes, and DML/DDL in the query editor. Pro also unlocks the Recovery Center, the Query Notebook, and Cost & Budget's projections and Advisor. Pay once, no subscription, and one purchase covers iPhone, iPad and Mac. KEY FEATURES • Editable Data Grid — Tap a cell to edit it, add rows, then discard or commit. Pending edits are shown as the SQL they will run before anything runs, and a remote database asks once more before it is written to. • Recovery Center (Pro) — Back up before you write. "Export Snapshot" runs Cloudflare's official export, a .sql dump preserving BLOBs byte-for-byte. Time Travel rolls a D1 database back to any point in its retention window, backing up first. • Cost & Budget — Know what a database costs before the invoice arrives. Month-to-date spend on the three axes D1 bills, rows read, rows written and stored bytes, with the billable part separated. Free, including the sidebar figure on each database. Pro adds a month-end projection, a monthly budget, and an Advisor that ranks the query shapes reading the most rows, suggests a fix where the numbers support one, and copies out as Markdown. • Draft SQL & Query Editor — Describe what you want, as in "active pro users, newest first", and Apple Intelligence turns it into a SELECT you can read and edit before you run it. Or write SQL by hand. Free. • Sign in with Cloudflare — Connect without making an API token. Approve D1Explorer once on Cloudflare's own screen, decide there whether it gets write access and usage analytics, and withdraw it whenever you like. Free. • Connection Doctor — Ask a connection what it can actually do. It checks the token, this database, and the permissions behind editing, exporting, restoring and cost analytics, then names the one you are missing instead of an HTTP status. Free. • iCloud Sync — Connections follow you between your devices. Only what identifies a database travels; credentials sync separately through end-to-end encrypted iCloud Keychain. • Query Notebook (Pro) — Never lose the query that fixed production. Save named snippets and keep a per-connection history of everything you've run, failures included, each labelled READ or WRITE. • Performance Insights — Execution time and rows read per statement, plus which D1 datacenter answered and whether a replica served it. SECURITY FIRST Your Cloudflare credentials live only in the iOS Keychain, pasted token or sign-in grant alike: encrypted by the OS, never in plain text, never sent to third parties. D1Explorer talks straight to Cloudflare, with no intermediary servers. PRIVACY BY DESIGN D1Explorer collects no analytics, no telemetry, and no user data of its own. Cost & Budget and the Advisor read your usage from Cloudflare with your own credentials and send it nowhere else; the Advisor's suggestions are local arithmetic, not a language model. Draft SQL is the one feature that uses a language model, and it is Apple's on-device one: it receives your question and this database's table and column names, never a value from any row, and nothing is uploaded. The Query Notebook records SQL as you typed it, so it can contain literals from your data: clear its history or turn recording off in Settings. Local SQLite files and Wrangler project import are Mac features and are not part of the iPhone and iPad app.