Cast away const for STM32

examples/ReadCsv/ReadCsv.ino

@@ -55,7 +55,7 @@ int csvReadText(File* file, char* str, size_t size, char delim) {
       rtn = ch;
       break;
     }
-    if ((n+1) >= size) {
+    if ((n + 1) >= size) {
       // string too long
       rtn = -2;
       n--;

src/SpiDriver/SdSpiSTM32F1.cpp

@@ -111,7 +111,7 @@ void SdSpiAltDriver::send(const uint8_t* buf , size_t n) {
 #if USE_STM32F1_DMAC
   pSpi[m_spiPort]->dmaSend(const_cast<uint8*>(buf), n);
 #else  // #if USE_STM32F1_DMAC
-  pSpi[m_spiPort]->write(buf, n);
+  pSpi[m_spiPort]->write(const_cast<uint8*>(buf), n);
 #endif  // USE_STM32F1_DMAC
 }
 //-----------------------------------------------------------------------------