added BSP folder content

bsp_stm32h7_freertos/NUCLEO-H743ZI/Src/syscalls.c

@@ -0,0 +1,154 @@
+/*!
+ * @file	syscalls.c
+ * Implements some base-level for libc for heap management and printing on
+ * the debug port.
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <stdio.h>
+
+#include <hardware_init.h>
+#include <boardconfig.h>
+
+
+#define AUTO_RETURN_AFTER_NEWLINE	1
+
+// _write currently adds \n after \r automatically.
+// If the At91lib\utility\stdio.c printf implementation is not used anymore:
+// remove if there are spurious newlines!
+
+//int _read(int file, void *ptr, size_t len) {
+//	(void)len;
+//	if(file <= STDERR_FILENO) {
+//		*(char *) ptr = DBGU_GetChar();
+//#if AUTO_RETURN_AFTER_NEWLINE
+//		if((*(char *) ptr != '\n') && (*(char *) ptr != '\r')) {
+//			DBGU_PutChar(*(char *) ptr);
+//		}
+//		else if(*(char *) ptr == '\r') {
+//			DBGU_PutChar('\n');
+//			DBGU_PutChar('\r');
+//		}
+//#endif
+//		return 1;
+//	}
+//	else {
+//		return -1;
+//	}
+//
+//}
+
+int _write(int file, const void *ptr, size_t len) {
+	size_t i;
+
+	if(file <= STDERR_FILENO) {
+		for(i=0; i<len; i++) {
+#if AUTO_RETURN_AFTER_NEWLINE
+			if(((const char *) ptr)[i] == '\n' &&
+					((const char *) ptr)[i+1] != '\r') {
+				HAL_UART_Transmit(&huart3, (uint8_t*)"\r", 1 ,
+						DEBUG_UART_MS_TIMEOUT);
+			}
+#endif
+			uint8_t* character = (uint8_t*) ptr;
+			HAL_UART_Transmit(&huart3, (uint8_t*) (character + i),
+					1 , DEBUG_UART_MS_TIMEOUT);
+		}
+		return len;
+	} else {
+		return -1;
+	}
+
+}
+
+int _lseek (int file, int ptr, int dir) {
+	(void)file;
+	(void)ptr;
+	(void)dir;
+	return 0;
+}
+
+int _close(int file) {
+	(void)file;
+	return -1;
+}
+
+int _open(const char *name, int flags, ...) {
+	(void)name;
+	(void)flags;
+	return -1;
+}
+
+int _link(const char *oldpath, const char *newpath) {
+	(void)oldpath;
+	(void)newpath;
+	return -1;
+}
+
+int _rename(const char *oldpath, const char *newpath) {
+	(void)oldpath;
+	(void)newpath;
+	return -1;
+}
+
+int _unlink(const char *pathname) {
+	(void)pathname;
+	return -1;
+}
+
+int fsync(int fd) {
+	(void)fd;
+	return -1;
+}
+
+int _fstat(int fd, struct stat *st) {
+	(void)fd;
+	(void)st;
+	return -1;
+}
+
+int _stat(const char *path, struct stat *st) {
+	(void)path;
+	(void)st;
+	return -1;
+}
+
+int _isatty(int fd) {
+	if(fd <= STDERR_FILENO) {
+		return 1;
+	}
+	else {
+		return 0;
+	}
+}
+
+void exit(int n) {
+	printf("\n\r EXITING WITH CODE: %u \n\r", n);
+	//restart();
+	while(1);
+}
+
+void _exit(int n) {
+	printf("\n\r EXITING WITH CODE: %u \n\r", n);
+	//restart();
+	while(1);
+}
+
+int _kill() {
+	return -1;
+}
+
+int _getpid() {
+	return 1;
+}
+
+int _gettimeofday() {
+	return -1;
+}