diff --git a/crcscheduler.c b/crcscheduler.c
index 87d4d45..3f90ef5 100644
--- a/crcscheduler.c
+++ b/crcscheduler.c
@@ -7,7 +7,6 @@
 #include <f4ll_c/crcscheduler.h>
 #include "main.h"
 #include <string.h>
-#include <platform/crc_ll.h>
 #include "diag.h"
 #include "f4ll_c/dmahelper.h"
 
@@ -27,12 +26,13 @@
 #	define DIAG_INTERRUPT_OUT()
 #endif
 
-void Crc_InitStatus(struct crcstatus_t *st, DMA_TypeDef *dma, uint32_t stream)
+void Crc_InitStatus(struct crcstatus_t *st, CRC_TypeDef *crcUnit, DMA_TypeDef *dma, uint32_t stream)
 {
+	st->crcUnit = crcUnit;
 	Dma_Init(&st->dmaInfo, dma, stream);
 	LL_DMA_EnableIT_TC(dma, stream);
 	LL_DMA_EnableIT_TE(dma, stream);
-	LL_DMA_SetM2MDstAddress(dma, stream, (uint32_t)&CRC->DR);
+	LL_DMA_SetM2MDstAddress(dma, stream, (uint32_t)&crcUnit->DR);
 	st->activeSlot = NULL;
 	st->first = NULL;
 }
@@ -86,7 +86,7 @@ uint8_t Crc_Enqueue(struct crcstatus_t *status, struct crcslotlistitem_t *slot,
 	__set_PRIMASK(prim);
 
 	if(need_start) {
-		CRC->CR = 1;
+		status->crcUnit->CR = 1;
 		LL_DMA_SetM2MSrcAddress(status->dmaInfo.dma, status->dmaInfo.stream, (uint32_t)address);
 		LL_DMA_SetDataLength(status->dmaInfo.dma, status->dmaInfo.stream, (len+3)/4);
 		DIAG_CRC_CALC_START();
@@ -126,7 +126,7 @@ static void StartNextCrcTask(struct crcstatus_t *status)
 				if(slot->tasks[index].address) {
 					status->activeSlot = slot;
 					status->activeTask = index;
-					CRC->CR = 1;
+					status->crcUnit->CR = 1;
 					LL_DMA_SetM2MSrcAddress(status->dmaInfo.dma, status->dmaInfo.stream, (uint32_t)slot->tasks[index].address);
 					LL_DMA_SetDataLength(status->dmaInfo.dma, status->dmaInfo.stream, slot->tasks[index].wordCount);
 					LL_DMA_EnableStream(status->dmaInfo.dma, status->dmaInfo.stream);
@@ -152,9 +152,9 @@ void Crc_HandleDmaIrq(struct crcstatus_t *status)
 		if(status->activeSlot) {
 			struct crcslottask_t *tsk = &status->activeSlot->tasks[status->activeTask];
 			if(tsk->callback)
-				tsk->callback(tsk->callbackParam, CRC->DR, 1);
+				tsk->callback(tsk->callbackParam, status->crcUnit->DR, 1);
 			else if(tsk->callbackParam)
-				*(uint32_t*)tsk->callbackParam = CRC->DR;
+				*(uint32_t*)tsk->callbackParam = status->crcUnit->DR;
 			tsk->callback = tsk->callbackParam = NULL;	// marking as inactive
 			DIAG_CRC_CALC_END();
 			StartNextCrcTask(status);
@@ -166,7 +166,7 @@ void Crc_HandleDmaIrq(struct crcstatus_t *status)
 		if(status->activeSlot) {
 			struct crcslottask_t *tsk = &status->activeSlot->tasks[status->activeTask];
 			if(tsk->callback)
-				tsk->callback(tsk->callbackParam, CRC->DR, 0);
+				tsk->callback(tsk->callbackParam, status->crcUnit->DR, 0);
 			else if(tsk->callbackParam)
 				*(uint32_t*)tsk->callbackParam = 0xffffffff;
 			tsk->callback = tsk->callbackParam = NULL;	// marking as inactive
diff --git a/crcscheduler.h b/crcscheduler.h
index 2d9d851..6bfa84c 100644
--- a/crcscheduler.h
+++ b/crcscheduler.h
@@ -14,6 +14,7 @@
 #include "config.h"
 #endif	//	HAVE_CONFIG
 
+#include <platform/crc_ll.h>
 #include <f4ll_c/dmahelper.h>
 
 struct crcslottask_t {
@@ -30,13 +31,14 @@ struct crcslotlistitem_t {
 };
 
 struct crcstatus_t {
+	CRC_TypeDef *crcUnit;
 	struct dmainfo_t dmaInfo;
 	struct crcslotlistitem_t *activeSlot;
 	uint8_t activeTask;
 	struct crcslotlistitem_t *first;
 };
 
-void Crc_InitStatus(struct crcstatus_t *status, DMA_TypeDef *dma, uint32_t stream);
+void Crc_InitStatus(struct crcstatus_t *status, CRC_TypeDef *crcUnit, DMA_TypeDef *dma, uint32_t stream);
 
 uint8_t Crc_GetActiveTask(struct crcslotlistitem_t **slot_out, struct crcstatus_t volatile *status);