Shivanand Gowda
7 segs
Dependencies: SN74CBT3257 Binary_Switch OSL10564_74HC595
Revision 0:5af5cf75b7f0, committed 2019-09-16
- Comitter:
- shivanandgowdakr
- Date:
- Mon Sep 16 14:58:09 2019 +0000
- Commit message:
- 7 segment display;
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/.gitignore Mon Sep 16 14:58:09 2019 +0000 @@ -0,0 +1,4 @@ +.build +.mbed +projectfiles +*.py*
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Binary_Switch.lib Mon Sep 16 14:58:09 2019 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/shivanandgowdakr/code/Binary_Switch/#4d49fd0d1451
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/CONTRIBUTING.md Mon Sep 16 14:58:09 2019 +0000 @@ -0,0 +1,5 @@ +# Contributing to Mbed OS + +Mbed OS is an open-source, device software platform for the Internet of Things. Contributions are an important part of the platform, and our goal is to make it as simple as possible to become a contributor. + +To encourage productive collaboration, as well as robust, consistent and maintainable code, we have a set of guidelines for [contributing to Mbed OS](https://os.mbed.com/docs/mbed-os/latest/contributing/index.html).
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OSL10564_74HC595.lib Mon Sep 16 14:58:09 2019 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/shivanandgowdakr/code/OSL10564_74HC595/#a3755014b7f1
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/README.md Mon Sep 16 14:58:09 2019 +0000 @@ -0,0 +1,152 @@ +# Getting started example for Mbed OS + +This guide reviews the steps required to get Blinky with the addition of dynamic OS statistics working on an Mbed OS platform. (Note: To see a rendered example you can import into the Arm Online Compiler, please see our [quick start](https://os.mbed.com/docs/mbed-os/latest/quick-start/online-with-the-online-compiler.html#importing-the-code).) + +Please install [Mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli). + +## Import the example application + +From the command-line, import the example: + +``` +mbed import mbed-os-example-blinky +cd mbed-os-example-blinky +``` + +### Now compile + +Invoke `mbed compile`, and specify the name of your platform and your favorite toolchain (`GCC_ARM`, `ARM`, `IAR`). For example, for the Arm Compiler: + +``` +mbed compile -m K64F -t ARM +``` + +Your PC may take a few minutes to compile your code. At the end, you see the following result: + +``` +[snip] + +Image: ./BUILD/K64F/GCC_ARM/mbed-os-example-blinky.bin +``` + +### Program your board + +1. Connect your Mbed device to the computer over USB. +1. Copy the binary file to the Mbed device. +1. Press the reset button to start the program. + +The LED on your platform turns on and off. The main thread will additionally take a snapshot of the device's runtime statistics and display it over serial to your PC. The snapshot includes: + +* System Information: + * Mbed OS Version: Will currently default to 999999 + * Compiler ID + * ARM = 1 + * GCC_ARM = 2 + * IAR = 3 + * [CPUID Register Information](#cpuid-register-information) + * [Compiler Version](#compiler-version) +* CPU Statistics + * Percentage of runtime that the device has spent awake versus in sleep +* Heap Statistics + * Current heap size + * Max heap size which refers to the largest the heap has grown to +* Thread Statistics + * Provides information on all running threads in the OS including + * Thread ID + * Thread Name + * Thread State + * Thread Priority + * Thread Stack Size + * Thread Stack Space + +#### Compiler Version + +| Compiler | Version Layout | +| -------- | -------------- | +| ARM | PVVbbbb (P = Major; VV = Minor; bbbb = build number) | +| GCC | VVRRPP (VV = Version; RR = Revision; PP = Patch) | +| IAR | VRRRPPP (V = Version; RRR = Revision; PPP = Patch) | + +#### CPUID Register Information + +| Bit Field | Field Description | Values | +| --------- | ----------------- | ------ | +|[31:24] | Implementer | 0x41 = ARM | +|[23:20] | Variant | Major revision 0x0 = Revision 0 | +|[19:16] | Architecture | 0xC = Baseline Architecture | +| | | 0xF = Constant (Mainline Architecture) | +|[15:4] | Part Number | 0xC20 = Cortex-M0 | +| | | 0xC60 = Cortex-M0+ | +| | | 0xC23 = Cortex-M3 | +| | | 0xC24 = Cortex-M4 | +| | | 0xC27 = Cortex-M7 | +| | | 0xD20 = Cortex-M23 | +| | | 0xD21 = Cortex-M33 | +|[3:0] | Revision | Minor revision: 0x1 = Patch 1 | + + + +You can view individual examples and additional API information of the statistics collection tools at the bottom of the page in the [related links section](#related-links). + + +### Output + +To view the serial output you can use any terminal client of your choosing such as [PuTTY](http://www.putty.org/) or [CoolTerm](http://freeware.the-meiers.org/). Unless otherwise specified, printf defaults to a baud rate of 9600 on Mbed OS. + +You can find more information on the Mbed OS configuration tools and serial communication in Mbed OS in the related [related links section](#related-links). + +The output should contain the following block transmitted at the blinking LED frequency (actual values may vary depending on your target, build profile, and toolchain): + +``` +=============================== SYSTEM INFO ================================ +Mbed OS Version: 999999 +CPU ID: 0x410fc241 +Compiler ID: 2 +Compiler Version: 60300 +RAM0: Start 0x20000000 Size: 0x30000 +RAM1: Start 0x1fff0000 Size: 0x10000 +ROM0: Start 0x0 Size: 0x100000 +================= CPU STATS ================= +Idle: 98% Usage: 2% +================ HEAP STATS ================= +Current heap: 1096 +Max heap size: 1096 +================ THREAD STATS =============== +ID: 0x20001eac +Name: main_thread +State: 2 +Priority: 24 +Stack Size: 4096 +Stack Space: 3296 + +ID: 0x20000f5c +Name: idle_thread +State: 1 +Priority: 1 +Stack Size: 512 +Stack Space: 352 + +ID: 0x20000f18 +Name: timer_thread +State: 3 +Priority: 40 +Stack Size: 768 +Stack Space: 664 + +``` + +## Troubleshooting + +If you have problems, you can review the [documentation](https://os.mbed.com/docs/latest/tutorials/debugging.html) for suggestions on what could be wrong and how to fix it. + +## Related Links + +* [Mbed OS Stats API](https://os.mbed.com/docs/latest/apis/mbed-statistics.html) +* [Mbed OS Configuration](https://os.mbed.com/docs/latest/reference/configuration.html) +* [Mbed OS Serial Communication](https://os.mbed.com/docs/latest/tutorials/serial-communication.html) + +### License and contributions + +The software is provided under Apache-2.0 license. Contributions to this project are accepted under the same license. Please see contributing.md for more info. + +This project contains code from other projects. The original license text is included in those source files. They must comply with our license guide.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SN74CBT3257.lib Mon Sep 16 14:58:09 2019 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/shivanandgowdakr/code/SN74CBT3257/#85ec0f240cb8
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Sep 16 14:58:09 2019 +0000
@@ -0,0 +1,269 @@
+#include "mbed.h"
+#include "EthernetInterface.h"
+#include "TCPServer.h"
+#include "TCPSocket.h"
+#include "SN74CBT3257.h"
+#include "Binary_Switch.h"
+#include "7segLed_HC595.h"
+
+#define NUM_OF_DIGIT 4
+
+
+#define IP "192.168.1.190"
+#define GATEWAY "192.168.1.1"
+#define MASK "255.255.255.0"
+
+ int Validate_Recieved_Packet(char *Packet,int *num0, int *num1, int * num2,int *num3,
+ int * num4, int *num5, int *num6, int *num7);
+
+Serial pc(USBTX,USBRX);
+SN74CBT3257 Bus(PD_0,PD_1,PD_2,PD_3,PD_4,PD_5,PD_6,PD_7 );
+BinarySwitch Switch(PD_8,PD_9,PD_10,PD_11,PD_12,PD_13,PD_14,PD_15);
+SevenSegLed led_7segs(PC_12,PC_10, PC_9, PC_8, NUM_OF_DIGIT);
+
+int main()
+{
+
+ int N0,N1,N2,N3;
+ int N4,N5,N6,N7;
+ int valid=0;
+ int SUCCESS=-1;
+ printf("TCP server example\n");
+
+ EthernetInterface eth;
+ SocketAddress sockaddr;
+
+ //eth.disconnect();
+ int i=eth.set_network(IP,MASK,GATEWAY);
+ printf("set IP status: %i \r\n",i);
+ i=eth.connect();
+ printf("connect status: %i \r\n",i);
+ const char *ip = eth.get_ip_address();
+ const char *mac = eth.get_mac_address();
+ printf("IP address is: %s\n\r", ip ? ip : "No IP");
+ printf("MAC address is: %s\n\r", mac ? mac : "No MAC");
+
+ printf("set IP status: %i \r\n",i);
+ printf("The Server IP address is '%s'\n", eth.get_ip_address());
+
+ TCPServer srv;
+ TCPSocket client_sock;
+ SocketAddress client_addr;
+ char buffer[200] = {'\0'};
+ char Rx_buffer[200] = {'\0'};
+ /* Open the server on ethernet stack */
+ srv.open(ð);
+
+ /* Bind the HTTP port (TCP 80) to the server */
+ srv.bind(eth.get_ip_address(), 23);
+
+ /* Can handle x simultaneous connections */
+
+ srv.listen(1);
+
+while(true)
+{
+ srv.accept(&client_sock, &client_addr);
+ printf("Accepted %s:%d\n", client_addr.get_ip_address(),
+ client_addr.get_port());
+ strcpy(buffer, "Hello \n\r");
+ SUCCESS= client_sock.send(buffer, strlen(buffer));
+ if(SUCCESS>=1)
+ {
+ printf("Sent : %s\r\n",buffer);
+ SUCCESS=client_sock.recv(Rx_buffer, 200);
+ }
+
+ if(SUCCESS>=1)
+ {
+ printf("Recieved : %s\r\n",Rx_buffer);
+ printf("Am Here \r\n");
+ }
+ // int Floor=Switch.Read_Switch_State();
+// printf(" You are in Floor number %d : \r\n",Floor);
+
+ valid= Validate_Recieved_Packet(Rx_buffer,&N0,&N1,&N2,&N3,&N4,&N5,&N6,&N7);
+ if(valid==1 && SUCCESS>=1)
+ {
+ valid=-1 ;SUCCESS=-1;
+ wait(0.1);
+ Bus.Select_Floor_Zero();
+
+ led_7segs=N0;
+ printf("Floor 0 Bays Available :%d \r\n",N0);
+ Bus.Select_Floor_One();
+ led_7segs=N1;
+ wait(0.1);
+
+ printf("Floor 1 Bays Available : %d\r\n",N1);
+ Bus.Select_Floor_Two();
+ led_7segs=N2;
+ wait(0.1);
+ printf("Floor 2 Bays Available : %d\r\n",N2);
+ Bus.Select_Floor_Three();
+ led_7segs=N3;
+ wait(0.1);
+ printf("Floor 3 Bays Available : %d\r\n",N3);
+
+ Bus.Select_Floor_Four();
+ led_7segs=N4;
+ printf("Floor 4 ays Available : %d\r\n",N4);
+ Bus.Select_Floor_Five();
+ led_7segs=N5;
+ printf("Floor 5 ays Available : %d\r\n",N5);
+ Bus.Select_Floor_Six();
+ led_7segs=N6;
+ wait(0.1);
+ printf("Floor 6 ays Available : %d\r\n",N6);
+ Bus.Select_Floor_Seven();
+ led_7segs=N7;
+ wait(0.1);
+ printf("Floor 7 ays Available : %d\r\n",N7);
+ wait(1);
+ }
+ client_sock.close();
+ }
+
+}
+
+ int Validate_Recieved_Packet(char *Packet,int *num0, int *num1, int *num2,int *num3,
+ int *num4, int *num5, int *num6, int *num7)
+{
+ if( Packet[0]=='E' && Packet[1]=='S' && Packet[2]=='T' && Packet[3]=='S'
+ && Packet[4]==' ' && Packet[12]==',' && Packet[20]==',' && Packet[28]==','
+ && Packet[36]==',' && Packet[44]==',' && Packet[52]==',' && Packet[60]==','
+ && Packet[68]==' ' && Packet[69]=='E' && Packet[70]=='S' && Packet[71]=='T'
+ && Packet[72]=='E')
+
+ {
+ printf("Valid Data R4ecieved \r\n");
+
+ if(Packet[5]=='0' && Packet[6]=='0')
+ {
+ printf("Zeroth Floor \r\n");
+ int one,two,three,four;
+ four=Packet[8]-0x30;
+ three=Packet[9]-0x30;
+ two=Packet[10]-0x30;
+ one=Packet[11]-0x30;
+ *num0=four*1000+three*100+two*10+one;
+ }
+
+ if(Packet[13]=='0' && Packet[14]=='1')
+ {
+ printf("First Floor \r\n");
+ int one,two,three,four;
+ four=Packet[16]-0x30;
+ three=Packet[17]-0x30;
+ two=Packet[18]-0x30;
+ one=Packet[19]-0x30;
+ *num1=four*1000+three*100+two*10+one;
+ }
+
+ if(Packet[21]=='0' && Packet[22]=='2')
+ {
+ printf("Second Floor \r\n");
+ int one,two,three,four;
+ four=Packet[24]-0x30;
+ three=Packet[25]-0x30;
+ two=Packet[26]-0x30;
+ one=Packet[27]-0x30;
+ *num2=four*1000+three*100+two*10+one;
+ }
+
+ if(Packet[29]=='0' && Packet[30]=='3')
+ {
+ printf("Three Floor \r\n");
+ int one,two,three,four;
+ four=Packet[32]-0x30;
+ three=Packet[33]-0x30;
+ two=Packet[34]-0x30;
+ one=Packet[35]-0x30;
+ *num3=four*1000+three*100+two*10+one;
+ }
+
+ if(Packet[37]=='0' && Packet[38]=='4')
+ {
+ printf("Fourth Floor \r\n");
+ int one,two,three,four;
+ four=Packet[40]-0x30;
+ three=Packet[41]-0x30;
+ two=Packet[42]-0x30;
+ one=Packet[43]-0x30;
+ *num4=four*1000+three*100+two*10+one;
+ }
+
+ if(Packet[45]=='0' && Packet[46]=='5')
+ {
+ printf("Fifth Floor \r\n");
+ int one,two,three,four;
+ four=Packet[48]-0x30;
+ three=Packet[49]-0x30;
+ two=Packet[50]-0x30;
+ one=Packet[51]-0x30;
+ *num5=four*1000+three*100+two*10+one;
+ }
+
+ if(Packet[53]=='0' && Packet[54]=='6')
+ {
+ printf("Sixth Floor \r\n");
+ int one,two,three,four;
+ four=Packet[56]-0x30;
+ three=Packet[57]-0x30;
+ two=Packet[58]-0x30;
+ one=Packet[59]-0x30;
+ *num6=four*1000+three*100+two*10+one;
+ }
+
+ if(Packet[61]=='0' && Packet[62]=='7')
+ {
+ int one,two,three,four;
+ four=Packet[64]-0x30;
+ three=Packet[65]-0x30;
+ two=Packet[66]-0x30;
+ one=Packet[67]-0x30;
+ *num7=four*1000+three*100+two*10+one;
+ printf("Seventh Floor : \r\n");
+ }
+ return 1;
+ }
+ else
+ {
+ return -1;
+ }
+}
+
+
+
+int Validate_Card_Reply_Packet(char *rbuffer,char *barc_string)
+{
+ int i=0,j=0;
+ if(rbuffer[0]=='1' &&rbuffer[1]=='1' && rbuffer[2]=='1' &&rbuffer[3]=='1'
+ && rbuffer[4]==':' &&rbuffer[19]==',' && rbuffer[20]=='C' &&
+ rbuffer[21]=='A' && rbuffer[22]=='R' && rbuffer[23]=='D' && rbuffer[24]==',')
+
+ {
+ //printf("Valid card ................................Reply \r\n");
+ i=25;
+ while(rbuffer[i]!=',')
+ {
+ if(rbuffer[i]=='\r'|rbuffer[i]=='\n') {
+ i++;
+ }
+ else {
+ barc_string[j]=rbuffer[i];
+ i++;
+ j++;
+ }
+ }
+ barc_string[i++]='\0';
+ //printf(" Valid card reply:%s",barc_string);
+ return j;
+ }
+ else
+ return 0;
+
+}
+
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os.lib Mon Sep 16 14:58:09 2019 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/mbed-os/#5941d1718339116cd12914238ec331c84da3d08f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed_app.json Mon Sep 16 14:58:09 2019 +0000
@@ -0,0 +1,11 @@
+{
+ "target_overrides": {
+ "*": {
+ "platform.stack-stats-enabled": true,
+ "platform.heap-stats-enabled": true,
+ "platform.cpu-stats-enabled": true,
+ "platform.thread-stats-enabled": true,
+ "platform.sys-stats-enabled": true
+ }
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/stats_report.h Mon Sep 16 14:58:09 2019 +0000
@@ -0,0 +1,133 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2018 ARM Limited
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef STATS_REPORT_H
+#define STATS_REPORT_H
+
+#include <inttypes.h>
+#include "mbed.h"
+
+/**
+ * System Reporting library. Provides runtime information on device:
+ * - CPU sleep, idle, and wake times
+ * - Heap and stack usage
+ * - Thread information
+ * - Static system information
+ */
+class SystemReport {
+ mbed_stats_heap_t heap_stats;
+ mbed_stats_cpu_t cpu_stats;
+ mbed_stats_sys_t sys_stats;
+
+ mbed_stats_thread_t *thread_stats;
+ uint8_t thread_count;
+ uint8_t max_thread_count;
+ uint32_t sample_time_ms;
+
+public:
+ /**
+ * SystemReport - Sample rate in ms is required to handle the CPU percent awake logic
+ */
+ SystemReport(uint32_t sample_rate) : max_thread_count(8), sample_time_ms(sample_rate)
+ {
+ thread_stats = new mbed_stats_thread_t[max_thread_count];
+
+ // Collect the static system information
+ mbed_stats_sys_get(&sys_stats);
+
+ printf("=============================== SYSTEM INFO ================================\r\n");
+ printf("Mbed OS Version: %" PRIu32 " \r\n", sys_stats.os_version);
+ printf("CPU ID: 0x%" PRIx32 " \r\n", sys_stats.cpu_id);
+ printf("Compiler ID: %d \r\n", sys_stats.compiler_id);
+ printf("Compiler Version: %" PRIu32 " \r\n", sys_stats.compiler_version);
+
+ for (int i = 0; i < MBED_MAX_MEM_REGIONS; i++) {
+ if (sys_stats.ram_size[i] != 0) {
+ printf("RAM%d: Start 0x%" PRIx32 " Size: 0x%" PRIx32 " \r\n", i, sys_stats.ram_start[i], sys_stats.ram_size[i]);
+ }
+ }
+ for (int i = 0; i < MBED_MAX_MEM_REGIONS; i++) {
+ if (sys_stats.rom_size[i] != 0) {
+ printf("ROM%d: Start 0x%" PRIx32 " Size: 0x%" PRIx32 " \r\n", i, sys_stats.rom_start[i], sys_stats.rom_size[i]);
+ }
+ }
+ }
+
+ ~SystemReport(void)
+ {
+ free(thread_stats);
+ }
+
+ /**
+ * Report on each Mbed OS Platform stats API
+ */
+ void report_state(void)
+ {
+ report_cpu_stats();
+ report_heap_stats();
+ report_thread_stats();
+
+ // Clear next line to separate subsequent report logs
+ printf("\r\n");
+ }
+
+ /**
+ * Report CPU idle and awake time in terms of percentage
+ */
+ void report_cpu_stats(void)
+ {
+ static uint64_t prev_idle_time = 0;
+
+ printf("================= CPU STATS =================\r\n");
+
+ // Collect and print cpu stats
+ mbed_stats_cpu_get(&cpu_stats);
+
+ uint64_t diff = (cpu_stats.idle_time - prev_idle_time);
+ uint8_t idle = (diff * 100) / (sample_time_ms * 1000); // usec;
+ uint8_t usage = 100 - ((diff * 100) / (sample_time_ms * 1000)); // usec;;
+ prev_idle_time = cpu_stats.idle_time;
+
+ printf("Idle: %d%% Usage: %d%% \r\n", idle, usage);
+ }
+
+ /**
+ * Report current heap stats. Current heap refers to the current amount of
+ * allocated heap. Max heap refers to the highest amount of heap allocated
+ * since reset.
+ */
+ void report_heap_stats(void)
+ {
+ printf("================ HEAP STATS =================\r\n");
+
+ // Collect and print heap stats
+ mbed_stats_heap_get(&heap_stats);
+
+ printf("Current heap: %" PRIu32 "\r\n", heap_stats.current_size);
+ printf("Max heap size: %" PRIu32 "\r\n", heap_stats.max_size);
+ }
+
+ /**
+ * Report active thread stats
+ */
+ void report_thread_stats(void)
+ {
+ printf("================ THREAD STATS ===============\r\n");
+
+ // Collect and print running thread stats
+ int count = mbed_stats_thread_get_each(thread_stats, max_thread_count);
+
+ for (int i = 0; i < count; i++) {
+ printf("ID: 0x%" PRIx32 " \r\n", thread_stats[i].id);
+ printf("Name: %s \r\n", thread_stats[i].name);
+ printf("State: %" PRIu32 " \r\n", thread_stats[i].state);
+ printf("Priority: %" PRIu32 " \r\n", thread_stats[i].priority);
+ printf("Stack Size: %" PRIu32 " \r\n", thread_stats[i].stack_size);
+ printf("Stack Space: %" PRIu32 " \r\n", thread_stats[i].stack_space);
+ }
+ }
+};
+
+#endif // STATS_REPORT_H
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tests/README.md Mon Sep 16 14:58:09 2019 +0000 @@ -0,0 +1,12 @@ +# Testing examples + +Examples are tested using tool [htrun](https://github.com/ARMmbed/mbed-os-tools/tree/master/packages/mbed-host-tests) and templated print log. + +To run the test, use following command after you build the example: +``` +mbedhtrun -d D: -p COM4 -m K64F -f .\BUILD\K64F\GCC_ARM\blinky.bin --compare-log tests\blinky.log +``` + + +More details about `htrun` are [here](https://github.com/ARMmbed/mbed-os-tools/tree/master/packages/mbed-host-tests#testing-mbed-os-examples). +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tests/blinky.log Mon Sep 16 14:58:09 2019 +0000 @@ -0,0 +1,29 @@ +=============================== SYSTEM INFO ================================ +Mbed OS Version: +CPU ID: 0x[0-9a-fA-F]+ +Compiler ID: \d+ +Compiler Version: +================= CPU STATS ================= +Idle: \d+% Usage: \d+% +================ HEAP STATS ================= +Current heap: \d+ +Max heap size: \d+ +================ THREAD STATS =============== +ID: 0x[0-9a-fA-F]+ +Name: main +State: \d+ +Priority: \d+ +Stack Size: \d+ +Stack Space: \d+ +ID: 0x[0-9a-fA-F]+ +Name: rtx_idle +State: \d+ +Priority: \d+ +Stack Size: \d+ +Stack Space: \d+ +ID: 0x[0-9a-fA-F]+ +Name: rtx_timer +State: \d+ +Priority: \d+ +Stack Size: \d+ +Stack Space: \d+