maxim/gpio-reader
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#305

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This commit is contained in:
mstroh76
2025-01-06 21:18:04 +01:00
parent ac1d302ad9
commit 1059d1b755
1 changed files with 36 additions and 14 deletions
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50
wiringPi/test/wiringpi_test7_bench.c
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@@ -34,8 +34,7 @@ int main (void) {
struct timeval t1, t2;
if (wiringPiSetupGpio() == -1) {
printf("wiringPiSetupGpio failed\n\n"); fExpectMHzdigitalWrite = 4.0; //MHz;
fExpectMHzpinMode = 1.6;
printf("wiringPiSetupGpio failed\n\n");
exit(EXIT_FAILURE);
}
@@ -92,36 +91,45 @@ int main (void) {
printf("WiringPi GPIO speed test program (using GPIO %d) and toggle %d times\n", GPIO, ToggleValue);
printf(" testing digital Wirte and pinMode\n");
printf(" testing digital Wirte and pinMode\n");
pinMode(GPIO, OUTPUT);
printf("toggle % 3d million times pin value ...\n", ToggleValue/1000000);
printf("write % 3d million times pin value ...\n", ToggleValue/1000000);
gettimeofday(&t1, NULL);
for (int loop=1; loop<ToggleValue; loop++) {
digitalWrite(GPIO, LOW);
digitalWrite(GPIO, HIGH);
}
gettimeofday(&t2, NULL);
ReportElaped("GPIO digitalWrite max. frequency ", fExpectMHzdigitalWrite, t1, t2);
ReportElaped("GPIO digitalWrite max. frequency ", fExpectMHzdigitalWrite, t1, t2);
digitalWrite(GPIO, LOW);
pinMode(GPIO, INPUT);
printf("\n");
printf("% 3d million times digitalRead ...\n", ToggleValue/1000000);
gettimeofday(&t1, NULL);
for (int loop=1; loop<ToggleValue; loop++) {
digitalRead(GPIOIN);
}
gettimeofday(&t2, NULL);
ReportElaped("GPIO digitalRead max. read ", fExpectMHzdigitalWrite, t1, t2);
ToggleValue /= 10;
printf("\n\n");
printf("toggle % 3d million times pin mode...\n", ToggleValue/1000000);
gettimeofday(&t1, NULL);
ToggleValue /= 10;
printf("\n");
printf("toggle % 3d million times pin mode...\n", ToggleValue/1000000);
gettimeofday(&t1, NULL);
for (int loop=1; loop<ToggleValue; loop++) {
pinMode(GPIO, OUTPUT);
pinMode(GPIO, INPUT);
}
gettimeofday(&t2, NULL);
ReportElaped("GPIO pinMode max. frequency ", fExpectMHzpinMode, t1, t2);
ReportElaped("GPIO pinMode max. frequency ", fExpectMHzpinMode, t1, t2);
printf("\n\n");
printf("toggle % 3d million times pin mode and digitalWrite ..\n", ToggleValue/1000000);
gettimeofday(&t1, NULL);
printf("\n");
printf("toggle % 3d million times pin mode and digitalWrite ..\n", ToggleValue/1000000);
gettimeofday(&t1, NULL);
for (int loop=1; loop<ToggleValue; loop++) {
pinMode(GPIO, OUTPUT);
digitalWrite(GPIO, LOW);
@@ -129,8 +137,22 @@ int main (void) {
pinMode(GPIO, INPUT);
}
gettimeofday(&t2, NULL);
ReportElaped("GPIO pinMode max. frequency ", 1/(1/fExpectMHzpinMode+1/fExpectMHzdigitalWrite), t1, t2);
ReportElaped("GPIO pinMode max. frequency ", 1/(1/fExpectMHzpinMode+1/fExpectMHzdigitalWrite), t1, t2);
ToggleValue *= 3;
printf("\n");
pinMode(GPIO, OUTPUT);
printf("% 3d million times digitalRead and digitalWrite ..\n", ToggleValue/1000000);
gettimeofday(&t1, NULL);
for (int loop=1; loop<ToggleValue; loop++) {
digitalWrite(GPIO, HIGH);
digitalRead(GPIOIN);
}
gettimeofday(&t2, NULL);
ReportElaped("GPIO pinMode max. frequency ", fExpectMHzdigitalWrite/2.6, t1, t2);
digitalWrite(GPIO, LOW);
pinMode(GPIO, INPUT);
return(EXIT_SUCCESS);
}