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lotus: Reduce sleep before ADC read

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5us seems enough sleep. Still works

Also need to measure delay not between each ADC scan but between each
matrix scan! That's what matters to the user.

Signed-off-by: Daniel Schaefer <git@danielschaefer.me>
This commit is contained in:
Daniel Schaefer 2023-01-07 22:48:59 +08:00
parent 8d392644b0
commit 920b502077
1 changed files with 8 additions and 8 deletions
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16
keyboards/lotus/matrix.c
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@ -316,15 +316,8 @@ void drive_col(int col, bool high) {
* Read a value from the ADC and print some debugging details
*/
static void read_adc(void) {
uint32_t current_ts = timer_read32();
if (prev_matrix_ts) {
uint32_t delta = current_ts - prev_matrix_ts;
uprintf("%lu ms (%ld Hz)\n", delta, 1000 / delta);
}
prev_matrix_ts = current_ts;
// Need to sleep a bit, otherwise we seem to get stuck
chThdSleepMilliseconds(5);
wait_us(5);
#if !CHIBIOS_ADC
uint16_t val = analogReadPin(ADC_CH2_PIN);
adc_voltage = val * CONV_FACTOR;
@ -380,6 +373,13 @@ bool matrix_scan_custom(matrix_row_t current_matrix[]) {
print("scan\n");
uint32_t current_ts = timer_read32();
if (prev_matrix_ts) {
uint32_t delta = current_ts - prev_matrix_ts;
uprintf("%lu ms (%ld Hz)\n", delta, 1000 / delta);
}
prev_matrix_ts = current_ts;
handle_idle();
for (int col = 0; col < MATRIX_COLS; col++) {