Fixing SDRAM to use input config

Author: DannyCato

include/core/io/SDRAM.hpp

@@ -119,12 +119,19 @@ class SDRAM {
      */
     static uint32_t getSdramClockFrequency(uint8_t mcuClkPerSdramClk);
 
+    /**
+     * Translates HAL SDRAM Clock number into a 2 or 3
+     * @param sdClockPeriod HAL SDRAM Clock Number (see FMC_SDRAM_Clock_Period FMC SDRAM Clock Period)
+     * @return Mcu Clock Cycles per SDRAM Clock Cycle
+     */
+    static uint8_t getMCUClkPerSdramClk(uint32_t sdClockPeriod);
+
     /**
      * Get how long one SDRAM Clock cycle is in femtoseconds
      * @param mcuClkPerSdramClk Number of microcontroller clock cycles for every SDRAM Clock Cycle
      * @return the SDRAM clock period in femtoseconds
      */
-    static uint32_t getSdramClockPeriodFS(uint8_t mcuClkPerSdramClk);
+    static uint32_t getSdramClockPeriodFS(uint32_t mcuClkPerSdramClk);
 
     /**
      * Transform a time given in nanoseconds into how many clock cycles fit in that range

src/core/io/SDRAM.cpp

@@ -1,7 +1,9 @@
 #include <core/io/SDRAM.hpp>
+#include <sys/types.h>
 
 namespace core::io {
 
+
     SDRAM::SDRAM(uint32_t* memoryAddress, SDRAMPinGroup& pins, const SDRAMInitConfig& initConfig,
                  const SDRAMTimingConfig& timingConfig, const SDRAMDevice& device)
         : memoryAddress(memoryAddress), pins(pins), initConfig(initConfig), timingConfig(timingConfig), device(device) {}
@@ -10,7 +12,20 @@ namespace core::io {
         return HAL_RCC_GetSysClockFreq() / mcuClkPerSdramClk;
     }
 
-    uint32_t SDRAM::getSdramClockPeriodFS(uint8_t mcuClkPerSdramClk) {
+    uint8_t SDRAM::getMCUClkPerSdramClk(uint32_t sdClockPeriod) {
+        switch (sdClockPeriod) {
+            default:
+            case FMC_SDRAM_CLOCK_PERIOD_2:
+                return 2;
+                break;
+            case FMC_SDRAM_CLOCK_PERIOD_3:
+                return 3;
+                break;
+        }
+
+    }
+
+    uint32_t SDRAM::getSdramClockPeriodFS(uint32_t mcuClkPerSdramClk) {
         return 1000000000UL / (getSdramClockFrequency(mcuClkPerSdramClk) / 1000000);
 
         /**

src/core/io/platform/f4xx/SDRAMf4xx.cpp

@@ -64,8 +64,9 @@ SDRAM::Status SDRAMf4xx::SendCommand(SDRAMCommand type, SDRAMCommandTarget targe
 }
 
 SDRAM::Status SDRAMf4xx::ProgramRefreshRate(uint32_t rowCount, uint32_t refreshTime) {
+    uint8_t clockPeriodNumber = getMCUClkPerSdramClk(sdram.Init.SDClockPeriod);
     HAL_StatusTypeDef halStatus = FMC_SDRAM_ProgramRefreshRate(
-        this->sdramDevice, (((refreshTime * 1000) / rowCount) * (getSdramClockFrequency(TODO) / 1000000)) - 20);
+        this->sdramDevice, (((refreshTime * 1000) / rowCount) * (getSdramClockFrequency(clockPeriodNumber) / 1000000)) - 20);
 
     return SDRAM::HALStatusToSDRAMStatus(halStatus);
 }