Merge pull request #272 from WiringPi/release38

Fix unit tests for 3.8

README.md

@@ -1,11 +1,16 @@
-# WiringPi
+# WiringPi Library
+Welcome to the WiringPi Library, the highly performant GPIO access library for Raspberry Pi boards. This library is written in C and is designed to provide fast and efficient control of the GPIO pins by directly accessing the hardware registers using DMA. 
 
-WiringPi is a _performant_ GPIO access library written in C for Raspberry Pi boards.
+**Key Features:** 
+- **Support:** WiringPi supports all Raspberry Pi Boards including Pi 5 ( :construction: On the Pi 5, only the GCLK functionality is currently not supported due to missing documentation of the RP1 chip).
+- **High Performance:** By directly accessing the hardware registers, WiringPi ensures minimal latency and maximum performance for your GPIO operations.
+- **Wide Adoption:** WiringPi is widely used in numerous projects, making it a reliable choice for your Raspberry Pi GPIO needs.
 
-:warning:️ :construction: on Pi5, PWM support is currently under development and _will not work at this point_. If you're interested in the progress, please check the [corresponding issue](https://github.com/GrazerComputerClub/WiringPi/issues/21).
+Whether you’re working on a simple LED blink project or a complex automation system, WiringPi provides the tools you need to get the job done efficiently.
 
+## How to use
 
-To compile programs with wiringPi, you need to include `wiringPi.h` as well as link against `wiringPi`:
+To compile programs with wiringPi Library, you need to include `wiringPi.h` as well as link against `wiringPi`:
 
 ```c
 #include <wiringPi.h> // Include WiringPi library!
@@ -143,7 +148,7 @@ Please don't email GC2 for reporting issues, you might [contact us](mailto:wirin
 
 ## History
 
-This repository is the continuation of 'Gordon's wiringPi' which has been [deprecated](https://web.archive.org/web/20220405225008/http://wiringpi.com/wiringpi-deprecated/), a while ago.
+This repository is the continuation of 'Gordon's wiringPi 2.5' which has been [deprecated](https://web.archive.org/web/20220405225008/http://wiringpi.com/wiringpi-deprecated/), a while ago.
 
 * The last "old wiringPi" source of Gordon's release can be found at the
   [`final_source_2.50`](https://github.com/WiringPi/WiringPi/tree/final_official_2.50) tag.

VERSION

@@ -1 +1 @@
-3.7
+3.8

version.h

@@ -1,3 +1,3 @@
-#define VERSION "3.7"
+#define VERSION "3.8"
 #define VERSION_MAJOR 3
-#define VERSION_MINOR 7
+#define VERSION_MINOR 8

wiringPi/test/wiringpi_test8_pwm.c

@@ -120,7 +120,7 @@ int main (void) {
     pwmr  = 256;
     pwm   =  171;
     duty_fact = (double)pwm/(double)pwmr;
-    printf("\n==> set mode MS, pwmc=%d, pwmr=%d, pwm%d, duty=%g%%\n", pwmc, pwmr, pwm, duty_fact*100);
+    printf("\n==> set mode MS, pwmc=%d, pwmr=%d, pwm=%d, duty=%g%%\n", pwmc, pwmr, pwm, duty_fact*100);
     pwmSetClock(pwmc);
     pwmSetRange(pwmr);
     pwmWrite(PWM, pwm);
@@ -138,7 +138,7 @@ int main (void) {
       pwmr  = 2048;
       pwm   =  768;
       duty_fact = (double)pwm/(double)pwmr;
-      printf("\n==> set mode PWM_BAL_OUTPUT, pwmc=%d, pwmr=%d, pwm%d, duty=%g%%\n", pwmc, pwmr, pwm, duty_fact*100);
+      printf("\n==> set mode PWM_BAL_OUTPUT, pwmc=%d, pwmr=%d, pwm=%d, duty=%g%%\n", pwmc, pwmr, pwm, duty_fact*100);
       pwmSetRange(pwmr);
       pwmSetClock(pwmc);
       pwmWrite(PWM, pwm);
@@ -154,11 +154,12 @@ int main (void) {
     MeasureAndCheckFreq("PMW off", 0.0);
 
     printf("Set pwm settings and enable PWM\n");
-    pwmc  = 5;
+    //pwmc  = 5;  //Problem with Pi0/1 after setting, PWM stops working, maybe IRQ problem or PWM BAL with that high freq (>2 MHz)
+    pwmc  = 35;   //PWM BAL would be >400 kHz
     pwmr  = 1024;
     pwm   =  768;
     duty_fact = (double)pwm/(double)pwmr;
-    printf("\n==> set mode PWM_MS_OUTPUT, pwmc=%d, pwmr=%d, pwm%d, duty=%g%%\n", pwmc, pwmr, pwm, duty_fact*100);
+    printf("\n==> set mode PWM_MS_OUTPUT, pwmc=%d, pwmr=%d, pwm=%d, duty=%g%%\n", pwmc, pwmr, pwm, duty_fact*100);
     pwmSetRange(pwmr);
     pwmSetClock(pwmc);
     pwmWrite(PWM, pwm);

wiringPi/test/wiringpi_test9_pwm.c

@@ -51,7 +51,7 @@ double MeasureAndCheckFreq(const char* msg, double expect_freq) {
 }
 
 
-int tests_pwmc[7] = {1456, 1000,  512,  100, 2000, 3000, 4000};
+int tests_pwmc[7] = {1456, 1000,  512,  200, 2000, 3000, 4000};
 int tests_duty[7] = { 512,  768,  682,  922,  256,  341,  102};
 int tests_pwmr[12]= {  50,  100,  200,  512, 1024, 1456, 2000, 3000, 5000, 10000, 15000, 20000};
 int tests_pwm[3]  = {  50,  25,  75};