fix(SPI): avoid 0 delay when SPI clock > 1MHz

Fixes stm32duino#2181. Signed-off-by: Jidong Chen <123861172+jchen-dawnscene@users.noreply.github.com> Co-Authored-By: Frederic Pillon <frederic.pillon@st.com>
fpistm · Nov 14, 2023 · 462c518 · 462c518
1 parent 586319c
commit 462c518
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/libraries/SPI/src/utility/spi_com.c b/libraries/SPI/src/utility/spi_com.c
@@ -214,7 +214,7 @@ static uint32_t compute_disable_delay(spi_t *obj)
   SPI_HandleTypeDef *handle = &(obj->handle);
 
   prescaler = 1 << ((handle->Init.BaudRatePrescaler >> SPI_CFG1_MBR_Pos) + 1);
-  disable_delay = ((prescaler * 1000000) / spi_freq) / 2;
+  disable_delay = (((prescaler * 1000000) / spi_freq) / 2) + 1;
   return disable_delay;
 }
 #endif