Quick Answer
Calculate SWD Debug Interface Bandwidth-Limited Transfer Time Calculator
Calculator
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Find Engineering Solutions →Result Interpretation
SWD Debug Interface Bandwidth-Limited Transfer Time Calculator computes Total transfer time in s using the defined engineering formula and the input values provided. Total transfer time is expressed in s. No universal acceptance threshold is defined by this calculator.
Worked Example
Verified calculation
Given:
- Number of data bits to transfer = 32
- Effective SWD probe bandwidth = 1000000
- Protocol efficiency factor (0.0–1.0) = 0.75
- Fixed protocol overhead bits per transaction = 48
Expected Result:
- Total transfer time = 0.00040533333333333
Engineering Interpretation:
Under the given input conditions, the calculated result is: Total transfer time = 0.00040533333333333 s.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from deterministically validated test cases.
Formula / Method
total transfer time = (number of data bits to transfer * 8.0 + fixed protocol overhead bits per transaction) / (effective swd probe bandwidth * 0.0–1.0)Formula family: formula_embedded_jtag_debug_probe_bandwidth_limited_swd_transfer_time_calculator
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| num_bits | Number of data bits to transfer | INPUT | Number of data bits to transfer |
| bandwidth_hz | Effective SWD probe bandwidth | INPUT | Effective SWD probe bandwidth |
| efficiency_factor | Protocol efficiency factor (0.0–1.0) | INPUT | Protocol efficiency factor (0.0–1.0) |
| overhead_bits | Fixed protocol overhead bits per transaction | INPUT | Fixed protocol overhead bits per transaction |
| transfer_time | Total transfer time | OUTPUT | Total transfer time |
Calculation Steps
- Enter the number of data bits to transfer in 1.
- Enter the effective swd probe bandwidth in Hz.
- Enter the protocol efficiency factor (0.0–1.0) in 1.
- Enter the fixed protocol overhead bits per transaction in 1.
- Step 1: Compute total transfer time.
- Read the total transfer time (s) from the results.
Engineering Summary
Calculate SWD Debug Interface Bandwidth-Limited Transfer Time Calculator
Frequently Asked Questions
What does this calculator calculate?
The SWD Debug Interface Bandwidth-Limited Transfer Time Calculator estimates Total transfer time based on the input parameters you provide
Why is effective swd probe bandwidth important in this calculation?
effective swd probe bandwidth is inversely proportional to total transfer time. When you enter effective swd probe bandwidth in Hz, the calculator uses it in the engineering formula to compute the output
How should I interpret the result total transfer time?
The calculator outputs total transfer time in s. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Effective SWD probe bandwidth (Hz). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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