tillitis-key/hw
Mikael Ågren 1e20dba10a
fpga/ch552: Swap fpga_cts and ch552_cts pins
The FPGA uwg30 package cannot use B3 as an input when an instance of
SB_PLL40_CORE is placed. We swap fpga_cts and ch552_cts to make B3 (from
here on fpga_cts) an output.

For more info check out:
FPGA-TN-02052-1-4-iCE40-sysCLOCK-PLL-Design-User-Guide.pdf chapter "5.1
PLL Placement Rules"
2025-05-19 08:55:26 +02:00
..
application_fpga fpga/ch552: Swap fpga_cts and ch552_cts pins 2025-05-19 08:55:26 +02:00
usb_interface/ch552_fw fpga/ch552: Swap fpga_cts and ch552_cts pins 2025-05-19 08:55:26 +02:00