Merge branch 'develop' into add_vbus_vsys_example

Author: kilograham

.github/workflows/cmake.yml

@@ -57,4 +57,4 @@ jobs:
       working-directory: ${{github.workspace}}/pico-examples/build
       shell: bash
       # Execute the build.  You can specify a specific target with "--target <NAME>"
-      run: cmake --build . --config $BUILD_TYPE --parallel ${{steps.core_count.outputs.output}}
+      run: cmake --build . --config $BUILD_TYPE --parallel $(nproc)

.github/workflows/multi-gcc.yml

@@ -28,8 +28,10 @@ add_subdirectory(hello_world)
 add_compile_options(-Wall
         -Wno-format          # int != int32_t as far as the compiler is concerned because gcc has int32_t as long int
         -Wno-unused-function # we have some for the docs that aren't called
-        -Wno-maybe-uninitialized
         )
+if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
+    add_compile_options(-Wno-maybe-uninitialized)
+endif()
 
 # Hardware-specific examples in subdirectories:
 add_subdirectory(adc)

CMakeLists.txt

@@ -72,7 +72,7 @@ int main(void) {
                     printf("%03x\n", sample_buf[i]);
                 break;
             }
-            case 'w':
+            case 'w': {
                 printf("\nPress any key to stop wiggling\n");
                 int i = 1;
                 gpio_set_dir_all_bits(-1);
@@ -85,6 +85,7 @@ int main(void) {
                 gpio_set_dir_all_bits(0);
                 printf("Wiggling halted.\n");
                 break;
+            }
             case '\n':
             case '\r':
                 break;

README.md

@@ -110,7 +110,7 @@ int main() {
 // ----------------------------------------------------------------------------
 // Code for driving the "DAC" output for us to measure
 
-// Core 1 is just going to sit and drive samples out continously. PIO provides
+// Core 1 is just going to sit and drive samples out continuously. PIO provides
 // consistent sample frequency.
 
 #define OUTPUT_FREQ_KHZ 5

adc/adc_console/adc_console.c

@@ -44,6 +44,4 @@ int main() {
         printf("%.2f\n", adc_raw * ADC_CONVERT);
         sleep_ms(10);
     }
-
-    return 0;
 }

adc/dma_capture/dma_capture.c

@@ -58,6 +58,4 @@ int main() {
 #endif
         sleep_ms(990);
     }
-
-    return 0;
 }

adc/microphone_adc/microphone_adc.c

@@ -89,7 +89,7 @@ int main() {
     dma_channel_wait_for_finish_blocking(chan);
 
     uint32_t sniffed_crc = dma_sniffer_get_data_accumulator();
-    printf("Completed DMA sniff of %d byte buffer, DMA sniff accumulator value: 0x%lx\n", TOTAL_LEN, sniffed_crc);
+    printf("Completed DMA sniff of %d byte buffer, DMA sniff accumulator value: 0x%x\n", TOTAL_LEN, sniffed_crc);
 
     if (0ul == sniffed_crc) {
         printf("CRC32 check is good\n");

adc/onboard_temperature/onboard_temperature.c

@@ -79,7 +79,9 @@ int main() {
     printf("Hit rate so far: %.1f%%\n", hit * 100.f / access);
 
     printf("Calculate 25th fibonacci number: %d\n", recursive_fibonacci(25));
-    printf("New hit rate after printf and fibonacci: %.1f%%\n", xip_ctrl_hw->ctr_hit * 100.f / xip_ctrl_hw->ctr_acc);
+    uint32_t ctr_hit = xip_ctrl_hw->ctr_hit;
+    uint32_t ctr_acc = xip_ctrl_hw->ctr_acc;
+    printf("New hit rate after printf and fibonacci: %.1f%%\n", ctr_hit * 100.f / ctr_acc);
 
     check_hit_miss_invalidate();