diff options
| -rw-r--r-- | ports/esp8266/machine_hspi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/ports/esp8266/machine_hspi.c b/ports/esp8266/machine_hspi.c index 9fd0f48682..ff77282911 100644 --- a/ports/esp8266/machine_hspi.c +++ b/ports/esp8266/machine_hspi.c @@ -65,6 +65,9 @@ STATIC void machine_hspi_transfer(mp_obj_base_t *self_in, size_t len, const uint spi_tx8fast(HSPI, src[i]); ++i; } + // wait for SPI transaction to complete + while (spi_busy(HSPI)) { + } } else { // we need to read and write data |