maxim/gpio-reader
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

#305

Browse Source
This commit is contained in:
mstroh76
2025-01-11 13:24:25 +01:00
parent f3231d9307
commit 8d4d7a1501
1 changed files with 2 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
wiringPi/test/wiringpi_test7_bench.c
View File

@@ -58,14 +58,12 @@ int main (void) {
case PI_MODEL_BP:
case PI_MODEL_AP:
case PI_MODEL_CM:
//ToggleValue /= 7;
fExpectTimedigitalWrite = 0.132; //us;
fExpectTimedigitalRead = 0.171; //us
fExpectTimepinMode = 0.334; //us
break;
case PI_MODEL_ZERO:
case PI_MODEL_ZERO_W: //ARM=1000MHz
//ToggleValue /= 5;
fExpectTimedigitalWrite = 0.104; //us;
fExpectTimedigitalRead = 0.135; //us
fExpectTimepinMode = 0.250; //us
@@ -85,14 +83,12 @@ int main (void) {
case PI_MODEL_400:
case PI_MODEL_CM4:
case PI_MODEL_CM4S:
//ToggleValue = ToggleValue;
fExpectTimedigitalWrite = 0.020; //us
fExpectTimedigitalRead = 0.038; //us
fExpectTimepinMode = 0.121; //us
fWriteReadDelayFactor = 1.86;
break;
case PI_MODEL_5:
//ToggleValue = ToggleValue*0.8;
fExpectTimedigitalWrite = 0.025; //us
fExpectTimedigitalRead = 0.323; //us
fExpectTimepinMode = 0.200; //us
@@ -157,7 +153,6 @@ int main (void) {
} else {
ToggleValue /= 5;
}
printf("\n");
pinMode(GPIO, OUTPUT);
printf("\nToggle % 3d million times digitalRead and digitalWrite ..\n", ToggleValue/1000000);
gettimeofday(&t1, NULL);
@@ -175,8 +170,8 @@ int main (void) {
CheckSameFloat("digitalWrite and digitalRead alternating factor", fTimePerOperation/(fExpectTimedigitalWrite+fExpectTimedigitalRead), fWriteReadDelayFactor, 0.2);
if (RaspberryPiModel==PI_MODEL_5) {
printf("\nRasperry Pi 5:\n");
printf(" * digitalRead has very slow speed, much slower then digitalWrite, factor %.1f (typical Pi4 ~2.0)\n", fWriteReadFactor);
printf(" * Alternating read/write operation has slow speed, factor %.2f (typical Pi4 ~1.77) to single operation time\n", fWriteReadDelayFactor);
printf(" * digitalRead has very slow speed, much slower then digitalWrite, factor %.1f (typical Pi4 ~1.9)\n", fWriteReadFactor);
printf(" * Alternating read/write operation has slow speed, factor %.2f (typical Pi4 ~1.86) to single operation time\n", fWriteReadDelayFactor);
}
digitalWrite(GPIO, LOW);