From c3d247b6ae7dd35a84268739638891bb4704e047 Mon Sep 17 00:00:00 2001
From: Matteo Pignataro <matteo.pignataro@skywarder.eu>
Date: Sat, 7 Oct 2023 12:15:09 +0000
Subject: [PATCH] [SDDriver] Added acceptance of pre-defined clock divider
---
miosix/arch/common/drivers/sd_stm32f2_f4_f7.cpp | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/miosix/arch/common/drivers/sd_stm32f2_f4_f7.cpp b/miosix/arch/common/drivers/sd_stm32f2_f4_f7.cpp
index 33666f61..8e6012a4 100644
--- a/miosix/arch/common/drivers/sd_stm32f2_f4_f7.cpp
+++ b/miosix/arch/common/drivers/sd_stm32f2_f4_f7.cpp
@@ -815,6 +815,10 @@ private:
void ClockController::calibrateClockSpeed(SDIODriver *sdio)
{
+ #ifdef SD_DIVIDER
+ // The frequency will be divided by a factor of SD_DIVIDER + 2
+ setClockSpeed(SD_DIVIDER);
+ #else
//During calibration we call readBlock() which will call reduceClockSpeed()
//so not to invalidate calibration clock reduction must not be available
clockReductionAvailable=0;
@@ -843,6 +847,7 @@ void ClockController::calibrateClockSpeed(SDIODriver *sdio)
setClockSpeed(minFreq);
DBG("Optimal CLKCR=%d\n",minFreq);
}
+ #endif
//Make clock reduction available
clockReductionAvailable=MAX_ALLOWED_REDUCTIONS;
--
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