update bmp280

ZilantRobotics · Dec 17, 2023 · 5b50ed9 · 5b50ed9
1 parent c9f5d6b
commit 5b50ed9
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Showing 2 changed files with 20 additions and 4 deletions.
diff --git a/sensors/barometer/bmp280.c b/sensors/barometer/bmp280.c
@@ -121,14 +121,21 @@ void bmp280Calibrate() {
 
 int8_t bmp280CollectData() {
     uint8_t tx[1] = {PRESS_REG};
-    BMP280_measurement_registers_t data;
-    i2cTransmit(I2C_ID, tx, 1);
-    i2cReceive(I2C_ID + 1, (uint8_t*)&data, 6);
+    BMP280_measurement_registers_t data = {};
+
+    int8_t res = LIBPERIPH_BPM280_OK;
+    if (i2cTransmit(I2C_ID, tx, 1) < 0) {
+        res = LIBPERIPH_BPM280_NO_RESPONSE;
+    }
+
+    if (i2cReceive(I2C_ID + 1, (uint8_t*)&data, 6) < 0) {
+        res = LIBPERIPH_BPM280_NO_RESPONSE;
+    }
 
     bmp280.static_pressure = (float)(data.p_msb << 12 | data.p_lsb << 4 | data.p_xlsb >> 4);
     bmp280.static_temperature = (float)(data.t_msb << 12 | data.t_lsb << 4 | data.t_xlsb >> 4);
 
-    return LIBPERIPH_OK;
+    return res;
 }
 
 

diff --git a/sensors/barometer/bmp280.h b/sensors/barometer/bmp280.h
@@ -18,10 +18,19 @@ extern "C" {
 
 #define BMP280_MAX_MEASUREMENT_FREQUENCY 50
 
+#define LIBPERIPH_BPM280_OK             0
+#define LIBPERIPH_BPM280_NO_RESPONSE    -1
+#define LIBPERIPH_BPM280_BAD_RESPONSE   -2
+
 int8_t bmp280Init();
 bool bmp280IsInitialized();
 void bmp280Calibrate();
+
+/**
+ * @return LIBPERIPH_BPM280_OK is ok, otherwise error code < 0
+ */
 int8_t bmp280CollectData();
+
 void bmp280ParseData();
 
 float bmp280GetStaticPressure();