# Debug version matrix.c 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 * `make MTEST=mdelay0 handwired/symmetric70_proto/promicro/normal:default:flash` * `make MTEST=mdelay=1 handwired/symmetric70_proto/promicro/normal:default:flash` * `make MTEST=mdelay=2 handwired/symmetric70_proto/promicro/normal:default:flash` * `make MTEST=mdelay=3 handwired/symmetric70_proto/promicro/normal:default:flash` * `make MTEST=mdelay=4 handwired/symmetric70_proto/promicro/normal:default:flash` * `make MTEST=mdelay=5 handwired/symmetric70_proto/promicro/normal:default:flash` * `make MTEST=mdelay=10 handwired/symmetric70_proto/promicro/normal:default:flash` * `make MTEST=mdelay=20 handwired/symmetric70_proto/promicro/normal:default:flash` * `make MTEST=mdelay=30 handwired/symmetric70_proto/promicro/normal:default:flash` * Measure the execution time of matrix_scan() * `make MTEST=matrix_debug_scan[,<other options>..] handwired/symmetric70_proto/promicro/normal:default:flash` * Measure delay time. * `make MTEST=matrix_debug_delay[,<other options>..] handwired/symmetric70_proto/promicro/normal:default:flash` * Change the behavior of delay * `make MTEST=matrix_debug_delay,always_delay handwired/symmetric70_proto/promicro/normal:default:flash` * `make MTEST=matrix_debug_delay,adaptive_delay,mdelay0 handwired/symmetric70_proto/promicro/normal:default:flash` * `make MTEST=matrix_debug_delay,adaptive_delay_fast,mdelay0 handwired/symmetric70_proto/promicro/normal:default:flash` ## Measurement result ### Pro Micro (ATmega32u4 16Mhz) #### Default setting (show `matrix_scan()` time) - `make MTEST=matrix_debug_scan handwired/symmetric70_proto/promicro/normal:default:flash` - CH1: Row 0 - CH2: Row 1 - CH3: Row 4 - CH4: matrix_scan() - Execution time of matrix_scan() 503us - Frequency of matrix scan 1.81kHz (551.0us)  #### Always call `matrix_output_unselect_delay()` (show `matrix_scan()` time, default MATRIX_IO_DELAY) - `make MTEST=matrix_debug_scan,always_delay handwired/symmetric70_proto/promicro/normal:default:flash` - CH1: Row 0 - CH2: Row 1 - CH3: Row 4 - CH4: matrix_scan() - Execution time of matrix_scan() 521us - Frequency of matrix scan 1.76kHz (568.5us)  #### Adaptive delay (show `matrix_scan()` time, MATRIX_IO_DELAY = 0) - `make MTEST=matrix_debug_scan,mdelay0,adaptive_delay handwired/symmetric70_proto/promicro/normal:default:flash` - CH1: Row 0 - CH2: Row 1 - CH3: Row 4 - CH4: matrix_scan() - Execution time of matrix_scan() 383us - Frequency of matrix scan 2.32kHz (431us)  #### Adaptive delay (show delay time, MATRIX_IO_DELAY = 0) - `make MTEST=matrix_debug_delay,mdelay0,adaptive_delay handwired/symmetric70_proto/promicro/normal:default:flash` ##### Press R0C1, R1C1 key - CH1: Row 0 - CH2: Row 1 - CH3: Row 4 - CH4: delay time - Delay time 68us - Frequency of matrix scan 1.77kHz (565us)  #### Fast adaptive delay (show `matrix_scan()` time, MATRIX_IO_DELAY = 0) - `make MTEST=matrix_debug_scan,mdelay0,adaptive_delay_fast handwired/symmetric70_proto/promicro/normal:default:flash` - CH1: Row 0 - CH2: Row 1 - CH3: Row 4 - CH4: matrix_scan() - Execution time of matrix_scan() 382us - Frequency of matrix scan 2.33kHz (428us)  #### Fast adaptive delay (show delay time, MATRIX_IO_DELAY = 0) - `make MTEST=matrix_debug_delay,mdelay0,adaptive_delay_fast handwired/symmetric70_proto/promicro/normal:default:flash` ##### Press R0C1, R1C1 key - CH1: Row 0 - CH2: Row 1 - CH3: Row 4 - CH4: delay time - Delay time 11us - Frequency of matrix scan 2.21kHz (452us)  ### Proton C (STM32F303 72MHz) #### Default setting (show `matrix_scan()` time) - `make MTEST=matrix_debug_scan handwired/symmetric70_proto/proton_c/normal:default:flash` - CH1: Row 0 - CH2: Row 1 - CH3: Row 4 - CH4: matrix_scan() - Execution time of matrix_scan() 210us - Frequency of matrix scan 4.35kHz (230.0us)  #### Always call `matrix_output_unselect_delay()` (show `matrix_scan()` time, default MATRIX_IO_DELAY) - `make MTEST=matrix_debug_scan,always_delay handwired/symmetric70_proto/proton_c/normal:default:flash` - CH1: Row 0 - CH2: Row 1 - CH3: Row 4 - CH4: matrix_scan() - Execution time of matrix_scan() 242us - Frequency of matrix scan 3.85kHz (260.0us)  #### Adaptive delay (show `matrix_scan()` time, MATRIX_IO_DELAY = 0) - `make MTEST=matrix_debug_scan,mdelay0,adaptive_delay handwired/symmetric70_proto/proton_c/normal:default:flash` - CH1: Row 0 - CH2: Row 1 - CH3: Row 4 - CH4: matrix_scan() - Execution time of matrix_scan() 76.4us - Frequency of matrix scan 10.6kHz (94.4us)  #### Adaptive delay (show delay time, MATRIX_IO_DELAY = 0) - `make MTEST=matrix_debug_delay,mdelay0,adaptive_delay handwired/symmetric70_proto/proton_c/normal:default:flash` ##### Press R0C1, R1C1 key - CH1: Row 0 - CH2: Row 1 - CH3: Row 4 - CH4: delay time - Delay time 7.6us - Frequency of matrix scan 9.47kHz (105.6us)  ##### Connect a 500pF capacitor between C2 line and GND, Press R0C2, R1C2, R2C2, R3C2, R4C2 keys - CH1: Row 0 - CH2: Row 1 - CH3: Col 2 - CH4: delay time - Delay time 12us + alpha - Frequency of matrix scan 5.45kHz (183us) - Threshold Voltage 1.9V  ##### Connect a 1000pF capacitor between C2 line and GND, Press R0C2, R1C2, R2C2, R3C2, R4C2 keys - CH1: Row 0 - CH2: Row 1 - CH3: Col 2 - CH4: delay time - Delay time 20us + alpha - Frequency of matrix scan 4.48kHz (223us) - Threshold Voltage 1.9V  #### Fast adaptive delay (show `matrix_scan()` time, MATRIX_IO_DELAY = 0) - `make MTEST=matrix_debug_scan,mdelay0,adaptive_delay_fast handwired/symmetric70_proto/proton_c/normal:default:flash` - CH1: Row 0 - CH2: Row 1 - CH3: Row 4 - CH4: matrix_scan() - Execution time of matrix_scan() 75.6us - Frequency of matrix scan 10.8kHz (92.2us)  #### Fast adaptive delay (show delay time, MATRIX_IO_DELAY = 0) - `make MTEST=matrix_debug_delay,mdelay0,adaptive_delay_fast handwired/symmetric70_proto/proton_c/normal:default:flash` ##### Press R0C1, R1C1 key - CH1: Row 0 - CH2: Row 1 - CH3: Row 4 - CH4: delay time - Delay time 1.6us - Frequency of matrix scan 10.6kHz (94.4us)   ##### Connect a 500pF capacitor between C2 line and GND, Press R0C2, R1C2, R2C2, R3C2, R4C2 keys - CH1: Row 0 - CH2: Row 1 - CH3: Col 2 - CH4: delay time - Delay time 13.2us - Frequency of matrix scan 6.58kHz (152.6us) - Threshold Voltage 1.9V  ##### Connect a 1000pF capacitor between C2 line and GND, Press R0C2, R1C2, R2C2, R3C2, R4C2 keys - CH1: Row 0 - CH2: Row 1 - CH3: Col 2 - CH4: delay time - Delay time 20us - Frequency of matrix scan 5.30kHz (188.8us) - Threshold Voltage 1.9V 