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diff Discovery/Src/stm32f4xx_hal_msp_hw2.c @ 124:4b355396557a FlipDisplay

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Change GPIO speed for SPI communication as recommended by STM32 Errata
author Ideenmodellierer
date Sun, 27 Jan 2019 22:17:16 +0100
parents 5f11787b4f42
children 626191e1fed1
line wrap: on
line diff
--- a/Discovery/Src/stm32f4xx_hal_msp_hw2.c	Sun Jan 27 22:01:07 2019 +0100
+++ b/Discovery/Src/stm32f4xx_hal_msp_hw2.c	Sun Jan 27 22:17:16 2019 +0100
@@ -298,7 +298,7 @@
     GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_7;
     GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
     GPIO_InitStruct.Pull = GPIO_NOPULL;
-    GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;//GPIO_SPEED_LOW;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FAST; /* Decision is based on errata which recomments FAST for GPIO at 90Mhz */
     GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
     HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
     GPIO_InitStruct.Pin = GPIO_PIN_4;
@@ -393,7 +393,7 @@
     GPIO_InitStruct.Pin = GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9;
     GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
     GPIO_InitStruct.Pull = GPIO_NOPULL;
-    GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;//GPIO_SPEED_LOW;
+    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; //GPIO_SPEED_MEDIUM;//GPIO_SPEED_LOW;
     GPIO_InitStruct.Alternate = GPIO_AF5_SPI5;
     HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);