Update 48k version

In to NXDN possible problem on sinc filter anc isinc filter, think they must be recalculated but do not know how to do it. On D-STAR, DMR, C4FM and P25 it work.

STM32Utils.h

@@ -0,0 +1,50 @@
+/*
+ *   source: http://mightydevices.com/?p=144
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#if !defined(STM32UTILS_H)
+#define STM32UTILS_H
+
+#include <stdint.h>
+
+/* ram function */
+#define RAMFUNC __attribute__ ((long_call, section (".data")))
+/* eeprom data */
+/* for placing variables in eeprom memory */
+#define EEMEM 	__attribute__((section(".eeprom")))
+
+/* bitband type */
+typedef volatile uint32_t * const bitband_t;
+
+/* base address for bit banding */
+#define BITBAND_SRAM_REF               		(0x20000000)
+/* base address for bit banding */
+#define BITBAND_SRAM_BASE              		(0x22000000)
+/* base address for bit banding */
+#define BITBAND_PERIPH_REF               	(0x40000000)
+/* base address for bit banding */
+#define BITBAND_PERIPH_BASE              	(0x42000000)
+
+/* sram bit band */
+#define BITBAND_SRAM(address, bit)     ((void*)(BITBAND_SRAM_BASE +   \
+		(((uint32_t)address) - BITBAND_SRAM_REF) * 32 + (bit) * 4))
+
+/* periph bit band */
+#define BITBAND_PERIPH(address, bit)   ((void *)(BITBAND_PERIPH_BASE + \
+		(((uint32_t)address) - BITBAND_PERIPH_REF) * 32 + (bit) * 4))
+
+#endif