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
2025-01-06 13:59:19 +01:00
parent 56a89968de
commit 5a3d2f3c09
2 changed files with 122 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
wiringPi/test/Makefile
View File

@@ -3,7 +3,7 @@ CFLAGS = -Wall
LDFLAGS =
# Need BCM19 <-> BCM26, +PWM: BCM12 <-> BCM13, BCM18 <-> BCM17 connected (1kOhm)
tests = wiringpi_test0_version wiringpi_test1_sysfs wiringpi_test2_sysfs wiringpi_test3_device_wpi wiringpi_test4_device_phys wiringpi_test5_default wiringpi_test6_isr wiringpi_test8_pwm wiringpi_test9_pwm
tests = wiringpi_test0_version wiringpi_test1_sysfs wiringpi_test2_sysfs wiringpi_test3_device_wpi wiringpi_test4_device_phys wiringpi_test5_default wiringpi_test6_isr wiringpi_test7_bench wiringpi_test8_pwm wiringpi_test9_pwm
# Need XO hardware
xotests = wiringpi_xotest_test1_spi wiringpi_i2c_test1_pcf8574 wiringpi_test8_pwm wiringpi_test9_pwm
@@ -13,6 +13,9 @@ pifacetests = wiringpi_piface_test1 wiringpi_test8_pwm wiringpi_test9_pwm
all: $(tests) $(xotests) $(pifacetests)
wiringpi_test0_version:
${CC} ${CFLAGS} wiringpi_test0_version.c -o wiringpi_test0_version -lwiringPi
wiringpi_test1_sysfs:
${CC} ${CFLAGS} wiringpi_test1_sysfs.c -o wiringpi_test1_sysfs -lwiringPi
@@ -31,8 +34,8 @@ wiringpi_test5_default:
wiringpi_test6_isr:
${CC} ${CFLAGS} wiringpi_test6_isr.c -o wiringpi_test6_isr -lwiringPi
wiringpi_test0_version:
${CC} ${CFLAGS} wiringpi_test0_version.c -o wiringpi_test0_version -lwiringPi
wiringpi_test7_bench:
${CC} ${CFLAGS} wiringpi_test7_bench.c -o wiringpi_test7_bench -lwiringPi
wiringpi_test8_pwm:
${CC} ${CFLAGS} wiringpi_test8_pwm.c -o wiringpi_test8_pwm -lwiringPi

116
wiringPi/test/wiringpi_test7_bench.c Normal file
View File

@@ -0,0 +1,116 @@
// WiringPi test program: benchmark
// Compile: gcc -Wall wiringpi_test7_bench.c -o wiringpi_test7_bench -lwiringPi
#include "wpi_test.h"
//#include <stdio.h>
//#include <stdlib.h>
//#include <signal.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>
int ToggleValue = 240000000;
float fExpectMHzdigitalWrite = 10;
float fExpectMHzpinMode = 4;
int GPIO = 19;
int GPIOIN = 26;
int RaspberryPiModel = -1;
void ReportElaped(const char* msg, const float fExpectMHz, struct timeval t1, struct timeval t2) {
double elapsedTime, fTimePerOperation, fFreq;
elapsedTime = (t2.tv_sec-t1.tv_sec)+(t2.tv_usec-t1.tv_usec)/1000000.0;
fTimePerOperation = elapsedTime*1000000.0/ToggleValue;
fFreq = ToggleValue/elapsedTime/1000000.0;
printf(" % 9d toggle took %.3f s, Time per toggle %.3f us, Freq %.3f MHz \n",
ToggleValue, elapsedTime, fTimePerOperation, fFreq);
CheckSameFloat(msg, fFreq, fExpectMHz, fExpectMHz*0.2f);
}
int main (void) {
struct timeval t1, t2;
if (wiringPiSetupGpio() == -1) {
printf("wiringPiSetupGpio failed\n\n");
exit(EXIT_FAILURE);
}
int rev, mem, maker, overVolted;
piBoardId(&RaspberryPiModel, &rev, &mem, &maker, &overVolted);
CheckNotSame("Model: ", RaspberryPiModel, -1);
if (!piBoard40Pin()) {
GPIO = 23;
GPIOIN = 24;
}
switch(RaspberryPiModel) {
case PI_MODEL_A:
case PI_MODEL_B:
case PI_MODEL_BP:
case PI_MODEL_AP:
case PI_MODEL_ZERO:
case PI_MODEL_ZERO_W:
case PI_MODEL_CM:
ToggleValue /= 8;
break;
case PI_MODEL_2:
ToggleValue /= 4;
break;
case PI_MODEL_3B:
case PI_MODEL_CM3:
case PI_MODEL_3BP:
case PI_MODEL_3AP:
case PI_MODEL_CM3P:
case PI_MODEL_ZERO_2W:
ToggleValue /= 2;
break;
case PI_MODEL_4B:
case PI_MODEL_400:
case PI_MODEL_CM4:
case PI_MODEL_CM4S:
ToggleValue = ToggleValue;
fExpectMHzdigitalWrite = 24.5; //MHz;
fExpectMHzpinMode = 4.1;
break;
case PI_MODEL_5:
ToggleValue *= 2;
break;
}
printf("WiringPi GPIO speed test program (using GPIO %d) and toggle %d times\n", GPIO, ToggleValue);
printf(" testing digital Wirte and pinMode\n");
pinMode(GPIO, OUTPUT);
printf("toggle % 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);
digitalWrite(GPIO, LOW);
pinMode(GPIO, INPUT);
ToggleValue /= 10;
printf("\n\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);
return(EXIT_SUCCESS);
}