- Add CTS signals let the FPGA and CH552 signal each other that
it is OK send UART data.
- Update the CH552 rx and frame handling logic.
- Fix minor spelling errors and indentation
to let the CH552 and FPGA signal each other that it is OK to send
UART data. The CTS signals indicate "OK to send" if high. If an
incoming CTS signal goes low, the receiver of that signal should
immediatly stop sending UART data.
Throwing away mode and length from incoming data. Adding mode and
length to outgoing data.
Splitting responses into frames small enough for the USB<->UART
transceiver to handle.
- Add USB HID support.
- Add framing to distinguish between CDC and HID data sent over the UART.
- Add some debug printing.
- Cleanup of code and formatting.
- Compare against an expected result and count errors
- Exit with the right error code
- Lower write_word() to 1 clk cycle instead of two. It only requires one
clock cycle to write, otherwise if it is two one have to compensate for it
in the tests since we are counting cycles.
Remove redundant timer state. This fixes a bug where the timer misses a
clock cycle every time the prescaler counter reaches 1. This means if
one uses a large prescaler, like 18E6, it is barely noticeable, but if
one have a low prescaler and a high timer value it becomes significant.
This also yields the running_* registers redundant, which are removed.
Add clarity to the readme.
Update the timer to default to values of one, for prescaler and timer
count.
This removes the possibility to configure the bit rate, data bits and
stop bits at runtime from the API. This reduces the
usage of LCs with ~4%.
It is still possible to configure the core before building.
Update digest of application_fpga.bin.sha256
- The API changes name from `_SWITCH_APP` to `_SYSTEM_MODE_CTRL`.
- The registers and wires changes name to `system_mode_*`, instead of a
mix of `switch_app_*` and `fw_app_mode`.
production_test related files are moved out of this repository, since it
relates to production of the hardware and not the fpga construction or
firmware.
Setting the working directory to a directory that exist.
Previously the working directory was set to /build/hw/application_fpga.
But that path does not exist since hw/application_fpga was mounted to
/build. Thus resulting in an error:
'Error: workdir "/build/hw/application_fpga" does not exist on
container'
