diff --git a/src/systemcmds/hardfault_log/hardfault_log.c b/src/systemcmds/hardfault_log/hardfault_log.c
index c9401d3890..c24245665d 100644
--- a/src/systemcmds/hardfault_log/hardfault_log.c
+++ b/src/systemcmds/hardfault_log/hardfault_log.c
@@ -261,16 +261,16 @@ static int write_stack_detail(bool inValid, _stack_s *si, char *sp_name,
 	int n = 0;
 	uint32_t sbot = si->top - si->size;
 	n =   snprintf(&buffer[n], max - n, " %s stack: \n", sp_name);
-	n +=  snprintf(&buffer[n], max - n, "  top:    0x%08" PRIu32 "\n", si->top);
-	n +=  snprintf(&buffer[n], max - n, "  sp:     0x%08" PRIu32 " %s\n", si->sp, (inValid ? "Invalid" : "Valid"));
+	n +=  snprintf(&buffer[n], max - n, "  top:    0x%08" PRIx32 "\n", si->top);
+	n +=  snprintf(&buffer[n], max - n, "  sp:     0x%08" PRIx32 " %s\n", si->sp, (inValid ? "Invalid" : "Valid"));
 
 	if (n != write(fd, buffer, n)) {
 		return -EIO;
 	}
 
 	n = 0;
-	n +=  snprintf(&buffer[n], max - n, "  bottom: 0x%08" PRIu32 "\n", sbot);
-	n +=  snprintf(&buffer[n], max - n, "  size:   0x%08" PRIu32 "\n",  si->size);
+	n +=  snprintf(&buffer[n], max - n, "  bottom: 0x%08" PRIx32 "\n", sbot);
+	n +=  snprintf(&buffer[n], max - n, "  size:   0x%08" PRIx32 "\n",  si->size);
 
 	if (n != write(fd, buffer, n)) {
 		return -EIO;
@@ -282,10 +282,11 @@ static int write_stack_detail(bool inValid, _stack_s *si, char *sp_name,
 	tcb.adj_stack_size = si->size;
 
 	if (verify_ram_address(sbot, si->size)) {
-		n = snprintf(buffer, max,         "  used:   %08zu\n", up_check_tcbstack(&tcb));
+		n = snprintf(buffer, max,         "  used:   0x%08zx\n", up_check_tcbstack(&tcb));
 
 	} else {
-		n = snprintf(buffer, max,         "Invalid Stack! (Corrupted TCB)  Stack base:  %08" PRIu32 " Stack size:  %08" PRIu32
+		n = snprintf(buffer, max,         "Invalid Stack! (Corrupted TCB)  Stack base:  0x%08" PRIx32 " Stack size:  0x%08"
+			     PRIx32
 			     "\n", sbot,
 			     si->size);
 	}
@@ -356,7 +357,7 @@ static int  write_stack(bool inValid, int winsize, uint32_t wtopaddr,
 						marker[0] = '\0';
 					}
 
-					n = snprintf(buffer, max, "0x%08" PRIu32 " 0x%08" PRIu32 "%s\n", wtopaddr, stack[i], marker);
+					n = snprintf(buffer, max, "0x%08" PRIx32 " 0x%08" PRIx32 "%s\n", wtopaddr, stack[i], marker);
 
 					if (n != write(outfd, buffer, n)) {
 						ret = -EIO;
@@ -377,8 +378,8 @@ static int  write_stack(bool inValid, int winsize, uint32_t wtopaddr,
 static int write_registers(uint32_t regs[], char *buffer, int max, int fd)
 {
 	int n = snprintf(buffer, max,
-			 " r0:0x%08" PRIu32 " r1:0x%08" PRIu32 "  r2:0x%08" PRIu32 "  r3:0x%08" PRIu32 "  r4:0x%08" PRIu32 "  r5:0x%08" PRIu32
-			 " r6:0x%08" PRIu32 " r7:0x%08" PRIu32 "\n",
+			 " r0:0x%08" PRIx32 " r1:0x%08" PRIx32 "  r2:0x%08" PRIx32 "  r3:0x%08" PRIx32 "  r4:0x%08" PRIx32 "  r5:0x%08" PRIx32
+			 " r6:0x%08" PRIx32 " r7:0x%08" PRIx32 "\n",
 			 regs[REG_R0],  regs[REG_R1],
 			 regs[REG_R2],  regs[REG_R3],
 			 regs[REG_R4],  regs[REG_R5],
@@ -389,8 +390,8 @@ static int write_registers(uint32_t regs[], char *buffer, int max, int fd)
 	}
 
 	n  = snprintf(buffer, max,
-		      " r8:0x%08" PRIu32 " r9:0x%08" PRIu32 " r10:0x%08" PRIu32 " r11:0x%08" PRIu32 " r12:0x%08" PRIu32 "  sp:0x%08" PRIu32
-		      " lr:0x%08" PRIu32 " pc:0x%08" PRIu32 "\n",
+		      " r8:0x%08" PRIx32 " r9:0x%08" PRIx32 " r10:0x%08" PRIx32 " r11:0x%08" PRIx32 " r12:0x%08" PRIx32 "  sp:0x%08" PRIx32
+		      " lr:0x%08" PRIx32 " pc:0x%08" PRIx32 "\n",
 		      regs[REG_R8],  regs[REG_R9],
 		      regs[REG_R10], regs[REG_R11],
 		      regs[REG_R12], regs[REG_R13],
@@ -401,11 +402,11 @@ static int write_registers(uint32_t regs[], char *buffer, int max, int fd)
 	}
 
 #ifdef CONFIG_ARMV7M_USEBASEPRI
-	n = snprintf(buffer, max, " xpsr:0x%08" PRIu32 " basepri:0x%08" PRIu32 " control:0x%08" PRIu32 "\n",
+	n = snprintf(buffer, max, " xpsr:0x%08" PRIx32 " basepri:0x%08" PRIx32 " control:0x%08" PRIx32 "\n",
 		     regs[REG_XPSR],  regs[REG_BASEPRI],
 		     getcontrol());
 #else
-	n = snprintf(buffer, max, " xpsr:0x%08" PRIu32 " primask:0x%08" PRIu32 " control:0x%08" PRIu32 "\n",
+	n = snprintf(buffer, max, " xpsr:0x%08" PRIx32 " primask:0x%08" PRIx32 " control:0x%08" PRIx32 "\n",
 		     regs[REG_XPSR],  regs[REG_PRIMASK],
 		     getcontrol());
 #endif
@@ -415,7 +416,7 @@ static int write_registers(uint32_t regs[], char *buffer, int max, int fd)
 	}
 
 #ifdef REG_EXC_RETURN
-	n = snprintf(buffer, max, " exe return:0x%08" PRIu32 "\n", regs[REG_EXC_RETURN]);
+	n = snprintf(buffer, max, " exe return:0x%08" PRIx32 "\n", regs[REG_EXC_RETURN]);
 
 	if (n != write(fd, buffer, n)) {
 		return -EIO;
@@ -432,11 +433,11 @@ static int write_fault_registers(fault_regs_s *fault_regs, char *buffer, int max
 {
 #if defined(CONFIG_ARCH_CORTEXM7)
 	const char fmt[] =
-		" cfsr:0x%08" PRIu32 " hfsr:0x%08" PRIu32 "  dfsr:0x%08" PRIu32 "  mmfsr:0x%08" PRIu32 "  bfsr:0x%08" PRIu32
-		" afsr:0x%08" PRIu32 " abfsr:0x%08" PRIu32 " \n";
+		" cfsr:0x%08" PRIx32 " hfsr:0x%08" PRIx32 "  dfsr:0x%08" PRIx32 "  mmfsr:0x%08" PRIx32 "  bfsr:0x%08" PRIx32
+		" afsr:0x%08" PRIx32 " abfsr:0x%08" PRIx32 " \n";
 #else
-	const char fmt[] =  " cfsr:0x%08" PRIu32 " hfsr:0x%08" PRIu32 "  dfsr:0x%08" PRIu32 "  mmfsr:0x%08" PRIu32
-			    "  bfsr:0x%08" PRIu32 " afsr:0x%08" PRIu32 "\n";
+	const char fmt[] =  " cfsr:0x%08" PRIx32 " hfsr:0x%08" PRIx32 "  dfsr:0x%08" PRIx32 "  mmfsr:0x%08" PRIx32
+			    "  bfsr:0x%08" PRIx32 " afsr:0x%08" PRIx32 "\n";
 #endif
 	int n = snprintf(buffer, max, fmt,
 			 fault_regs->cfsr, fault_regs->hfsr, fault_regs->dfsr,
@@ -1080,7 +1081,7 @@ __EXPORT int hardfault_check_status(char *caller)
 		} else {
 			ret = state;
 			identify(caller);
-			hfsyslog(LOG_INFO, "Fault Log info File No %" PRIu8 " Length %" PRIu8 " flags:0x%02" PRIu16 " state:%d\n",
+			hfsyslog(LOG_INFO, "Fault Log info File No %" PRIu8 " Length %" PRIu16 " flags:0x%02" PRIx16 " state:%d\n",
 				 desc.fileno, desc.len, desc.flags, state);
 
 			if (state == OK) {