From 0cb345ed5ccbe786d0a7e7e2de740c0a07b82770 Mon Sep 17 00:00:00 2001
From: ozpv <39195175+ozpv@users.noreply.github.com>
Date: Wed, 19 Aug 2026 21:34:09 -0500
Subject: sdram and ringmod effect

---
 Core/Src/fmc.c | 26 ++++++++------------------
 1 file changed, 8 insertions(+), 18 deletions(-)

(limited to 'Core/Src/fmc.c')

diff --git a/Core/Src/fmc.c b/Core/Src/fmc.c
index ae14948..b1eac4d 100755
--- a/Core/Src/fmc.c
+++ b/Core/Src/fmc.c
@@ -53,15 +53,15 @@ void MX_FMC_Init(void)
   hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
   hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
   hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_ENABLE;
-  hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_0;
+  hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_2;
   /* SdramTiming */
-  SdramTiming.LoadToActiveDelay = 16;
-  SdramTiming.ExitSelfRefreshDelay = 12;
-  SdramTiming.SelfRefreshTime = 16;
-  SdramTiming.RowCycleDelay = 10;
-  SdramTiming.WriteRecoveryTime = 16;
-  SdramTiming.RPDelay = 3;
-  SdramTiming.RCDDelay = 3;
+  SdramTiming.LoadToActiveDelay = 2;
+  SdramTiming.ExitSelfRefreshDelay = 8;
+  SdramTiming.SelfRefreshTime = 5;
+  SdramTiming.RowCycleDelay = 6;
+  SdramTiming.WriteRecoveryTime = 3;
+  SdramTiming.RPDelay = 2;
+  SdramTiming.RCDDelay = 2;
 
   if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
   {
@@ -84,16 +84,6 @@ static void HAL_FMC_MspInit(void){
     return;
   }
   FMC_Initialized = 1;
-  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
-
-  /** Initializes the peripherals clock
-  */
-    PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_FMC;
-    PeriphClkInitStruct.FmcClockSelection = RCC_FMCCLKSOURCE_PLL;
-    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
-    {
-      Error_Handler();
-    }
 
   /* Peripheral clock enable */
   __HAL_RCC_FMC_CLK_ENABLE();
-- 
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