Fix library build for the M4 core. (#26)

iabdalkader · web-flow · commit a0aa54428545 · 2023-03-03T10:58:44.000+01:00
diff --git a/src/Arduino_AdvancedAnalog.h b/src/Arduino_AdvancedAnalog.h
@@ -24,10 +24,6 @@
  * INCLUDE
  **************************************************************************************/
 
-#ifdef ARDUINO_PORTENTA_H7_M4
-# error "This library only works on the M7 core of any STM32H747 based board (Portenta H7, Giga)."
-#endif
-
 #include "AdvancedADC.h"
 #include "AdvancedDAC.h"
 
diff --git a/src/DMABuffer.h b/src/DMABuffer.h
@@ -92,15 +92,19 @@ template <class T, size_t A=__SCB_DCACHE_LINE_SIZE> class DMABuffer {
         }
 
         void flush() {
+            #if __DCACHE_PRESENT
             if (ptr) {
                 SCB_CleanDCache_by_Addr(data(), bytes());
             }
+            #endif
         }
 
         void invalidate() {
+            #if __DCACHE_PRESENT
             if (ptr) {
                 SCB_InvalidateDCache_by_Addr(data(), bytes());
             }
+            #endif
         }
 
         uint32_t timestamp() {

Original file line number	Diff line number	Diff line change
`@@ -92,15 +92,19 @@ template <class T, size_t A=__SCB_DCACHE_LINE_SIZE> class DMABuffer {`
`92`	`92`	`}`
`93`	`93`
`94`	`94`	`void flush() {`
	`95`	`+ #if __DCACHE_PRESENT`
`95`	`96`	`if (ptr) {`
`96`	`97`	`SCB_CleanDCache_by_Addr(data(), bytes());`
`97`	`98`	`}`
	`99`	`+ #endif`
`98`	`100`	`}`
`99`	`101`
`100`	`102`	`void invalidate() {`
	`103`	`+ #if __DCACHE_PRESENT`
`101`	`104`	`if (ptr) {`
`102`	`105`	`SCB_InvalidateDCache_by_Addr(data(), bytes());`
`103`	`106`	`}`
	`107`	`+ #endif`
`104`	`108`	`}`
`105`	`109`
`106`	`110`	`uint32_t timestamp() {`