~ruther/qmk_firmware

f5d091a9d58c8349437e9d52de87294258cbd256 — Takeshi ISHII 3 years ago c3ff06c
Small update to Symmetric70 keyboard readme (#17188)

Added a little description to reademe.md under `handwired/symmetric70_proto/{matrix_debug|matrix_fast}`.
M keyboards/handwired/symmetric70_proto/matrix_debug/readme.md => keyboards/handwired/symmetric70_proto/matrix_debug/readme.md +12 -1
@@ 1,11 1,22 @@
# Debug version matrix.c

This matrix.c is quantum/matrix.c with the following additions:
This matrix.c is 0.13.19:quantum/matrix.c with the following additions:

* Added the MATRIX_DEBUG_SCAN_{START/END} macro to measure the execution time of matrix_scan().
* Added the MATRIX_DEBUG_DELAY_{START/END} macro to measure delay time.
* Added the MATRIX_MUL_SELECT handling for symmetric70_proto.

## Current performance

  | MCU               | delay type    | execution time <br> of <br> `matrix_scan()` | matrix scan rate |
  |-------------------|---------------|------------|----------------|
  | Pro Micro (16MHz) | default       | 503us      | 1810 scans/sec |
  | Pro Micro (16MHz) | adaptive      | 383us      | 2320 scans/sec |
  | Pro Micro (16MHz) | fast adaptive | 382us      | 2330 scans/sec |
  | Proton C (72MHz)  | default       | 210us      | 4350 scans/sec |
  | Proton C (72MHz)  | adaptive      | 76.4us     | 10600 scans/sec |
  | Proton C (72MHz)  | fast adaptive | 75.6us     | 10800 scans/sec |

## Compile

* Set MATRIX_IO_DELAY value

M keyboards/handwired/symmetric70_proto/matrix_fast/readme.md => keyboards/handwired/symmetric70_proto/matrix_fast/readme.md +7 -0
@@ 15,6 15,13 @@ This matrix.c is faster and more extensible than the standard quantum/matrix.c.
- [ ] support I/O expander (MCP23018)
- [ ] support MCU & I/O expander (MCP23018) mixture like ErgoDox

## Current performance

  | MCU               | delay type    | execution time <br> of <br> `matrix_scan()` | matrix scan rate |
  |-------------------|---------------|------------|-----------------|
  | Pro Micro (16MHz) | fast adaptive | 75.6us     |  8090 scans/sec |
  | Proton C (72MHz)  | fast adaptive | 49.8us     | 15100 scans/sec |

## Configuration

This matrix.c requires a different configuration than quantum/matrix.c.