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test(i2c): Add test to scan bus #11022

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merged 3 commits into from
Mar 5, 2025
Merged

test(i2c): Add test to scan bus #11022

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9383f4f
test(i2c): Add test to scan bus
lucasssvaz Feb 28, 2025
8772e1d
test(i2c): Add scan test with wifi running
lucasssvaz Feb 28, 2025
62cf432
fix(i2c): Simplify test
lucasssvaz Feb 28, 2025
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48 changes: 48 additions & 0 deletions tests/validation/i2c_master/i2c_master.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,11 @@
#include <Arduino.h>
#include <unity.h>
#include <Wire.h>
#include <vector>
#include <algorithm>
#include <WiFi.h>

#include "sdkconfig.h"

/* DS1307 functions */

Expand All @@ -24,6 +29,9 @@ static uint8_t read_month = 0;
static uint16_t read_year = 0;
static int peek_data = -1;

const char *ssid = "Wokwi-GUEST";
const char *password = "";

const auto BCD2DEC = [](uint8_t num) -> uint8_t {
return ((num / 16 * 10) + (num % 16));
};
Expand Down Expand Up @@ -245,6 +253,42 @@ void test_api() {
Wire.flush();
}

bool device_found() {
uint8_t err;

for (uint8_t address = 1; address < 127; ++address) {
Wire.beginTransmission(address);
err = Wire.endTransmission();
log_d("Address: 0x%02X, Error: %d", address, err);
if (err == 0) {
log_i("Found device at address: 0x%02X", address);
} else if (address == DS1307_ADDR) {
log_e("Failed to find DS1307");
return false;
}
}

return true;
}

void scan_bus() {
TEST_ASSERT_TRUE(device_found());
}

#if SOC_WIFI_SUPPORTED
void scan_bus_with_wifi() {
// delete old config
WiFi.disconnect(true, true, 1000);
delay(1000);
WiFi.begin(ssid, password);
delay(5000);
bool found = device_found();
WiFi.disconnect(true, true, 1000);

TEST_ASSERT_TRUE(found);
}
#endif

/* Main */

void setup() {
Expand All @@ -258,6 +302,10 @@ void setup() {

log_d("Starting tests");
UNITY_BEGIN();
RUN_TEST(scan_bus);
#if SOC_WIFI_SUPPORTED
RUN_TEST(scan_bus_with_wifi);
#endif
RUN_TEST(rtc_set_time);
RUN_TEST(rtc_run_clock);
RUN_TEST(change_clock);
Expand Down
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