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This package contains a simple test of tests for various elements of the SmartBoard hardware, which is a simple baseboard designed for easy embedding. It is able to run both a semi-automatic test suite as well as allow interactive testing.
Dependencies: EthernetNetIf NTPClient_NetServices mbed
This program is most of what you need to test your SmartBoard baseboard hardware. It provides a means to test the following:
- Two channels of CAN (with a loopback cable)
- RS-232 Ports
- Analog inputs
- PWM outputs
- Ethernet port
- Real time clock
- micro SD
- USB Host port
Diff: SmartBoard_Tester.cpp
- Revision:
- 0:5db287f0060b
- Child:
- 1:586392c0e935
diff -r 000000000000 -r 5db287f0060b SmartBoard_Tester.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SmartBoard_Tester.cpp Sun Jan 16 18:30:14 2011 +0000 @@ -0,0 +1,453 @@ +/// @file SmartBoard_Tester.cpp is the simple test framework +/// +/// This file contains the startup, interactive, and test code +/// to evaluate the SmartBoard baseboard. +/// +/// @note Copyright © 2011 by Smartware Computing, all rights reserved. +/// @author David Smart +/// +#include "mbed.h" +#include "SmartBoard.h" +#include "ShowTime.h" +#include "EthernetNetIf.h" +#include "NTPClient.h" +#include "SDFileSystem.h" +#include "MSCFileSystem.h" + +Serial pc(USBTX, USBRX); ///< Used as the console for interactively reporting progress + +const char * TicTocServer = "ntp.okstate.edu"; ///< time server since it is closer than "0.uk.pool.ntp.org" +const int tzOffsetHr = -6; ///< time zone offset hours to print time in local time +const int tzOffsetMin = 0; ///< time zone offset minutes to print time in local time + +void LED_Tests(void); +void PWM_Tests(void); +void AnalogIn_Tests(void); +void RTC_Tests(void); +void MicroSD_Tests(void); +void RS_232_Tests(void); +void CAN_Tests(void); +void Ethernet_Tests(void); +void USBHost_Tests(void); + +/// TestVector will execute a given test, based on the parameter +/// +/// It can show the list of available commands, as for an interactive +/// test session, or it can simply execute the chosen test. This is +/// used for both the automated testing and the interactive testing, +/// so a couple of the commands for interactive would not be used +/// for the automated testing. +/// '?' causes it to display the available commands. +/// +/// @param i contains the single character value indicating the operation +/// to perform. +/// @returns false if the input paramter was 'X'. +/// @returns true if the input parameters was not 'X'. +/// +bool TestVector(int i) { + bool r = true; ///< expect to return true + + switch (i) { + default: + case '?': + pc.printf("Commands:\r\nx" + " L LED_Tests();\r\n" + " P PWM_Tests(); // note interaction between LEDs and PWMs\r\n" + " A AnalogIn_Tests();\r\n" + " R RTC_Tests();\r\n" + " M MicroSD_Tests();\r\n" + " S RS_232_Tests();\r\n" + " C CAN_Tests();\r\n" + " E Ethernet_Tests();\r\n" + " U USBHost_Tests();\r\n" + " X eXit to automatic testing\r\n"); + break; + case 'X': + r = false; + break; + case 'L': + LED_Tests(); + break; + case 'P': + PWM_Tests(); + break; + case 'A': + AnalogIn_Tests(); + break; + case 'R': + RTC_Tests(); + break; + case 'M': + MicroSD_Tests(); + break; + case 'S': + RS_232_Tests(); + break; + case 'C': + CAN_Tests(); + break; + case 'E': + Ethernet_Tests(); + break; + case 'U': + USBHost_Tests(); + break; + } + return r; +} + +/// main is the main startup code. +/// +/// This initializes the test environment, shows a banner, +/// and starts the automated testing. +/// It also detects if the user is attempting to interact, and +/// between each test category there is the possibility to transfer +/// to the interactive test mode. +/// When in interactive test mode, the user determines which test +/// to run. The user can also exit interactive mode back to the +/// automated test mode. +/// +/// @returns never +/// +int main() { + bool init = true; ///< init is slightly different + bool interactive = false; ///< track when in interactive mode + int test = 0; ///< which test to run + char TestList[] = "XLPARMSCEU"; ///< list of valid test commands + + while (1) { + if (pc.readable() || init) { + pc.printf("\r\n\r\n"); + pc.printf("SmartBoard Hardware Tester\r\n"); + pc.printf(" SmartBoard Hardware v0.05\r\n"); + pc.printf(" SmartBoard Software v0.07\r\n"); + pc.printf("\r\n"); + pc.printf(" [USB] [Eth/USB] \r\n"); + pc.printf(" +---------------+------------+---+-------+---+\r\n"); + pc.printf(" |O [RS232 1-2] | | | | | | O|\r\n"); + pc.printf(" | | |microSD| | | | |\r\n"); + pc.printf(" |S | | | | | | C|\r\n"); + pc.printf(" |P | +-------+ | | | A|\r\n"); + pc.printf(" |I | | |Yl Gr| N|\r\n"); + pc.printf(" |1 | | +-------+ 1|\r\n"); + pc.printf(" |- | | -|\r\n"); + pc.printf(" |2 | RTC | 2|\r\n"); + pc.printf(" | | (Battery) | |\r\n"); + pc.printf(" | | | |\r\n"); + pc.printf(" | | 1 2 3 4 | |\r\n"); + pc.printf(" | +------------+ |\r\n"); + pc.printf(" |O[Analog In ] O [PWM Out] O|\r\n"); + pc.printf(" +--------------------------------------------+\r\n"); + pc.printf("\r\n"); + init = false; + } + if (pc.readable()) { + interactive = true; + while (pc.readable()) + (void)pc.getc(); + + while (interactive) { + pc.printf("> "); + int i = pc.getc(); + pc.putc(i); + pc.putc('\r'); + pc.putc('\n'); + interactive = TestVector(i); + } + } else { + if (test == 0) + pc.printf("\x07"); // Bell character indicating start of tests + TestVector(TestList[test++]); + if (TestList[test] == '\0') + test = 0; + wait(5.0); // Extra pause + } + } +} + +/// LED_Tests performs some simple digital output to the +/// LEDs. +/// +/// It will attempt to exercise the LEDs on the Ethernet ports +/// as well, but by jumper configuration these may not be available. +/// +void LED_Tests(void) { + int l; + int i; + struct { + const char * name; + DigitalOut led; + } Leds[] = { + {"Ethernet Green", ETHERGREEN}, + {"Ethernet Yellow", ETHERYELLOW}, + {"Led 1", LED1}, + {"Led 2", LED2}, + {"Led 3", LED3}, + {"Led 4", LED4} + }; + const int numLeds = sizeof(Leds) / sizeof(Leds[0]); + + printf("LED Test:\r\n"); + for (l=0; l<numLeds; l++) { + printf(" Blink %s LED 3 times\r\n", Leds[l].name); + for (i=0; i<3; i++) { + Leds[l].led = true; + wait(0.4); + Leds[l].led = false; + wait(0.4); + } + } +} + +/// PWM_Tests performs some simple pwm output to the +/// PWM channels and the LEDs. +/// +/// It will attempt to exercise the outputs with a simple ramping +/// signal, but by jumper configuration these may not be available. +/// +void PWM_Tests(void) { + int l; + int i; + float f; + struct { + const char * name; + PwmOut pwm; + } Pwms[] = { + {"PWM 1", p21}, + {"PWM 2", p22}, + {"PWM 3", p23}, + {"PWM 4", p24}, + {"PWM 5", p25}, + {"PWM 6", p26}, + {"Led 1", LED1}, + {"Led 2", LED2}, + {"Led 3", LED3}, + {"Led 4", LED4} + }; + const int numPwms = sizeof(Pwms) / sizeof(Pwms[0]); + + printf("PWM Test:\r\n"); + for (l=0; l<numPwms; l++) { + printf(" Ramp %s PWM 3 times\r\n", Pwms[l].name); + for (i=0; i<3; i++) { + for (f=0.0; f<=1.0; f+= 0.1) { + Pwms[l].pwm = f; + wait(0.1); + } + } + Pwms[l].pwm = 0; // off when done + } +} + +/// AnalogIn_Tests takes a few sample measurements on each channel +/// +/// It samples each channel a number of times and presents the +/// converted results on the console. +/// +void AnalogIn_Tests(void) { + int l; + int i; + const int samples = 20; + struct { + const char * name; + AnalogIn in; + } Analogs[] = { + {"Ain 1", p15}, + {"Ain 2", p16}, + {"Ain 3", p17}, + {"Ain 4", p18}, + {"Ain 5", p19}, + {"Ain 6", p20} + }; + const int numAnalogs = sizeof(Analogs) / sizeof(Analogs[0]); + + printf("Analog Test:\r\n"); + for (l=0; l<numAnalogs; l++) { + for (i=0; i<samples; i++) { + uint16_t raw = Analogs[l].in.read_u16(); + float flt = Analogs[l].in.read(); + printf(" Analog %i is %04X, %3.2f, %3.2fv\r", l, raw, flt, flt*3.3); + wait(0.1); + } + printf("\n"); + } +} + +/// RTC_Tests will perform simple tests on the Real Time Clock +/// +/// It will first sample the time from the RTC and later restore +/// it as best it can. +/// In the middle of that it will set the clock, then simply show +/// the time once per second for 5 seconds. After this it +/// will restore the clock at best it can. +/// +void RTC_Tests(void) { + time_t x; + int i; + const int oldTime = 1256729737; + + printf("RTC Test:\r\n"); + ShowTime(0, -6, 0); + x = time(NULL); // Save the time before the test + printf(" Saving current time(%d)\r\n", x); + + set_time(oldTime); // Set RTC time to Wed, 28 Oct 2009 11:35:37 + printf(" Set time to Wed, 28 Oct 2009 11:35:37\r\n"); + + for (i=0; i<5; i++) { + ShowTime(); + wait(1.0); + } + set_time(x + time(NULL) - 1256729737); // Approximately restored + ShowTime(0, -6, 0); + wait(1.0); + ShowTime(0, -6, 0); +} + +/// Ethernet_Tests will attempt to test the Ethernet interface +/// +/// It will connect to the network - if possible, then it will +/// try to connect to a network time server and set the clock, +/// using hard coded time server and time zone offset values. +/// +/// It appears that the Ethernet interface cannot be instantiated, +/// destroyed, and later instantiated again (it would reliably "hang"). +/// So, this test is "runonce" protected. +/// +void Ethernet_Tests(void) { + EthernetNetIf eth; + NTPClient ntp; + static bool runonce = true; + + printf("Ethernet Test:\r\n"); + if (runonce) { + EthernetErr ethErr = eth.setup(); + if (ethErr) { + printf("Error %d in setup.\r\n", ethErr); + return; + } + printf(" Ethernet Setup OK\r\n"); + ShowTime(0, tzOffsetHr, tzOffsetMin); + printf(" Setting clock to %s\r\n", TicTocServer); + Host server(IpAddr(), 123, TicTocServer); + ntp.setTime(server); + printf(" Clock was set.\r\n"); + wait(1.0); + ShowTime(0, tzOffsetHr, tzOffsetMin); + runonce = false; + } else { + printf(" only runs once per cold-boot.\r\n"); + } +} + +/// MicroSD_Tests attempts to access and write a file on the micro SD card +/// +/// It will mount the file system, then attempt to write a simple +/// file on the micro SD card. +/// +void MicroSD_Tests(void) { + SDFileSystem sd(p5, p6, p7, p8, "sd"); // the pinout on the mbed Cool Components workshop board + FILE *fp; + char buffer[50]; + + printf("SD File System Tests:\r\n"); + mkdir("/sd/mydir", 0777); + fp = fopen("/sd/mydir/sdtest.txt", "w"); + if (fp == NULL) { + printf(" Could not open file for write\r\n"); + } else { + fprintf(fp, "Write a message to the micro SD card!"); + fclose(fp); + printf(" Closed file.\r\n"); + fp = fopen("/sd/mydir/sdtest.txt", "r"); + if (fp) { + printf(" Reading file back.\r\n"); + if (fgets(buffer, sizeof(buffer), fp)) { + if (strlen(buffer) > 2) + buffer[strlen(buffer)-2] = '\0'; // chomp the <LF> + printf(" Read: {%s}\r\n", buffer); + } + fclose(fp); + } + } + printf(" test complete!\r\n"); +} + + +/// USBHost_Tests attempts to access and write a file on USB stick +/// +/// It will mount the file system, then attempt to write a simple +/// file on the USB interface. +/// +void USBHost_Tests(void) { + MSCFileSystem fs ("fs"); + FILE *fp; + char buffer[50]; + + printf("USB Host Tests: [installed memory stick required]\r\n"); + fp = fopen("/fs/hello.txt","w"); + if (fp) { + printf(" Writing to hello.txt file\r\n"); + fprintf(fp,"Hello world!\r\n"); + fclose (fp); + printf(" Closed file.\r\n"); + fp = fopen("/fs/hello.txt", "r"); + if (fp) { + printf(" Reading file back.\r\n"); + if (fgets(buffer, sizeof(buffer), fp)) { + if (strlen(buffer) > 2) + buffer[strlen(buffer)-2] = '\0'; // chomp the <LF> + printf(" Read: {%s}\r\n", buffer); + } + fclose(fp); + } + } +} + +/// CAN_Tests will send some packets on one CAN port and expect them on the other +/// +/// It will attempt to send 10 messages on one port and expect that +/// all 10 messages were received on the other port. The two ports should +/// be wired from one to the other with a loop-back cable and a termination +/// resistor. +/// +void CAN_Tests(void) { + CAN can1(p9, p10); + CAN can2(p30, p29); + char Txcounter = 0; + char Rxcounter = 0; + CANMessage msg; + int i; + + printf("CAN Tests:\r\n"); + for (i=0; i<10; i++) { + if (can1.write(CANMessage(1337, &Txcounter, 1))) { + Txcounter++; + printf(" Message sent: %d\r\n", Txcounter); + wait(0.05); + } + if (can2.read(msg)) { + printf(" Message received: %d\r\n", msg.data[0]); + Rxcounter++; + } + wait(0.2); + } + if (Txcounter == Rxcounter) + printf(" passed.\r\n"); + else + printf(" **** Txcounter (%d) != Rxcounter (%d) ****\r\n", Txcounter, Rxcounter); +} + +/// RS_232_Tests will say hello on each of the RS-232 channels +/// +/// It will print a hello text string out each of the ports. +/// +void RS_232_Tests(void) { + Serial s1(p13, p14); + Serial s2(p28, p27); + + pc.printf("RS-232 Tests:\r\n"); + s1.printf(" Hello going out S1\r\n"); + s2.printf(" Hello going out S2\r\n"); + pc.printf(" end tests.\r\n"); +}