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Fix examples to build cleanly if PICO_DEFAULT_LED_PIN isn't defined

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This commit is contained in:
Andrew Scheller 2021-03-04 11:32:56 +00:00 committed by Graham Sanderson
parent 482d9657d3
commit 4d7882bc59
5 changed files with 26 additions and 9 deletions
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4
blink/blink.c
View File

@ -7,6 +7,9 @@
#include "pico/stdlib.h"
int main() {
#ifndef PICO_DEFAULT_LED_PIN
#warning blink example requires a board with a regular LED
#else
const uint LED_PIN = PICO_DEFAULT_LED_PIN;
gpio_init(LED_PIN);
gpio_set_dir(LED_PIN, GPIO_OUT);
@ -16,4 +19,5 @@ int main() {
gpio_put(LED_PIN, 0);
sleep_ms(250);
}
#endif
}

20
picoboard/blinky/blinky.c
View File

@ -8,7 +8,6 @@
#include "pico/stdlib.h"
#include "hardware/gpio.h"
const uint LED_PIN = PICO_DEFAULT_LED_PIN;
const uint DOT_PERIOD_MS = 100;
const char *morse_letters[] = {
@ -40,25 +39,25 @@ const char *morse_letters[] = {
"--.." // Z
};
void put_morse_letter(const char *pattern) {
void put_morse_letter(uint led_pin, const char *pattern) {
for (; *pattern; ++pattern) {
gpio_put(LED_PIN, 1);
gpio_put(led_pin, 1);
if (*pattern == '.')
sleep_ms(DOT_PERIOD_MS);
else
sleep_ms(DOT_PERIOD_MS * 3);
gpio_put(LED_PIN, 0);
gpio_put(led_pin, 0);
sleep_ms(DOT_PERIOD_MS * 1);
}
sleep_ms(DOT_PERIOD_MS * 2);
}
void put_morse_str(const char *str) {
void put_morse_str(uint led_pin, const char *str) {
for (; *str; ++str) {
if (*str >= 'A' && *str < 'Z') {
put_morse_letter(morse_letters[*str - 'A']);
put_morse_letter(led_pin, morse_letters[*str - 'A']);
} else if (*str >= 'a' && *str < 'z') {
put_morse_letter(morse_letters[*str - 'a']);
put_morse_letter(led_pin, morse_letters[*str - 'a']);
} else if (*str == ' ') {
sleep_ms(DOT_PERIOD_MS * 4);
}
@ -66,10 +65,15 @@ void put_morse_str(const char *str) {
}
int main() {
#ifndef PICO_DEFAULT_LED_PIN
#warning picoboard/blinky example requires a board with a regular LED
#else
const uint LED_PIN = PICO_DEFAULT_LED_PIN;
gpio_init(LED_PIN);
gpio_set_dir(LED_PIN, GPIO_OUT);
while (true) {
put_morse_str("Hello world");
put_morse_str(LED_PIN, "Hello world");
sleep_ms(1000);
}
#endif
}

2
picoboard/button/button.c
View File

@ -54,7 +54,7 @@ bool __no_inline_not_in_flash_func(get_bootsel_button)() {
int main() {
#ifndef PICO_DEFAULT_LED_PIN
#warning picobooard/button example requires a board with a regular LED
#warning picoboard/button example requires a board with a regular LED
#else
gpio_init(PICO_DEFAULT_LED_PIN);
gpio_set_dir(PICO_DEFAULT_LED_PIN, GPIO_OUT);

5
pio/pwm/pwm.c
View File

@ -26,6 +26,10 @@ void pio_pwm_set_level(PIO pio, uint sm, uint32_t level) {
int main() {
stdio_init_all();
#ifndef PICO_DEFAULT_LED_PIN
#warning pio/pwm example requires a board with a regular LED
puts("Default LED pin was not defined");
#else
// todo get free sm
PIO pio = pio0;
@ -43,4 +47,5 @@ int main() {
level = (level + 1) % 256;
sleep_ms(10);
}
#endif
}

4
system/hello_double_tap/hello_double_tap.c
View File

@ -13,6 +13,9 @@
// `pico_bootsel_via_double_reset` library!
int main() {
#ifndef PICO_DEFAULT_LED_PIN
#warning system/hello_double_tap example requires a board with a regular LED
#else
const uint LED_PIN = PICO_DEFAULT_LED_PIN;
gpio_init(LED_PIN);
gpio_set_dir(LED_PIN, GPIO_OUT);
@ -22,4 +25,5 @@ int main() {
gpio_put(LED_PIN, 0);
sleep_ms(250);
}
#endif
}