ch32v003 changes

- memset crashes (why?)
- FIFO buffer to big for RAM

examples/system_interface.h

@@ -176,13 +176,7 @@ void si_enable_irq();
  */
 #define SI_CHECK_RC(rc)                                                                            \
 	do {                                                                                           \
-		if (si_print_error_if_any(rc)) {                                                           \
-			INV_MSG(INV_MSG_LEVEL_ERROR, "At %s (line %d)", __FILE__, __LINE__);                   \
-			si_sleep_us(100000);                                                                   \
-			while (1)                                                                              \
-				;                                                                                  \
-		}                                                                                          \
-	} while (0)
+	} while (0);
 
 /** @brief Check return code from driver and print message if it is an error.
  *  @param[in] rc  Return code from the driver.

icm42670p/imu/inv_imu_driver.c

@@ -44,8 +44,6 @@ int inv_imu_init(inv_imu_device_t *s, const struct inv_imu_serif *serif,
 {
 	int status = 0;
 
-	memset(s, 0, sizeof(*s));
-
 	/* Verify validity of `serif` variable */
 	if (serif == NULL || serif->read_reg == NULL || serif->write_reg == NULL)
 		return INV_ERROR;

icm42670p/imu/inv_imu_driver.h

@@ -57,7 +57,8 @@ extern "C" {
 #endif
 
 /** Max buffer size mirrored from FIFO at polling time */
-#define FIFO_MIRRORING_SIZE 16 * 258 // packet size * max_count = 4kB
+// #define FIFO_MIRRORING_SIZE 16 * 258 // packet size * max_count = 4kB
+#define FIFO_MIRRORING_SIZE 258
 
 /** Sensor identifier for UI control function */
 enum inv_imu_sensor {