From 3560e16ac73b29c3adfcc577e41e5dafcd1fdfb6 Mon Sep 17 00:00:00 2001 From: Ouss4 Date: Fri, 4 Sep 2020 16:21:50 +0100 Subject: [PATCH] arch/xtensa/src/esp32/esp32_spi.c: When the TX buffer is empty send something to kick off the SPI clock. --- arch/xtensa/src/esp32/esp32_spi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/xtensa/src/esp32/esp32_spi.c b/arch/xtensa/src/esp32/esp32_spi.c index 8d552e61a6..d57c8c7ea1 100644 --- a/arch/xtensa/src/esp32/esp32_spi.c +++ b/arch/xtensa/src/esp32/esp32_spi.c @@ -1052,7 +1052,7 @@ static void esp32_spi_poll_exchange(FAR struct esp32_spi_priv_s *priv, for (i = 0 ; i < nwords; i++) { - uint32_t w_wd = 0; + uint32_t w_wd = 0xffff; uint32_t r_wd; if (txbuffer)