ID | Use | SB_IO_GB | SB_GB | Special |
---|---|---|---|---|
x/y/z (pin) | x/y | x/y type | ||
0 | Clk / Reset | 19/ 0/1 (20) | 13/ 0 | |
1 | Clk / CE | 6/ 0/1 (44) | 13/31 | |
2 | Clk / Reset | 13/31/0 (37) | 19/31 | 12/31 PLL_B |
3 | Clk / CE | 6/31 |
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# This is an nmigen delay line for ECP5 FPGAs using the open source toolchain. It strings together a series of | |
# manually placed carry chains into a "thermometer." It returns a signal that's (length) long that represents | |
# the chain "snapshotted" at the primary clock domain (using the flip flops colocated in the slice). | |
# | |
# This can be used in a Time to Digital Converter (i.e. to measure the time between to events) or in | |
# an ADC by comparing (with LVDS) a signal to a reference signal. | |
# | |
# Note that the bit precision (read: delay per carry element) varies as a function of temperature. On | |
# a LFE5U-25F-8MG285C, I've measure delay times of approximately 43ps on average. Due to assorted reasons, | |
# the delay time will vary between bits and due to variations in routing (even when manually places), you might |
- Update HISTORY.md
- Commit the changes:
git add HISTORY.md
git commit -m "Changelog for upcoming release 0.1.1."
- Update version number (can also be minor or major)
bumpversion patch