Write test code for EN_RX and EN_PA

3 files changed, 166 insertions, 26 deletions

diff --git a/tracker-stm32/README.md b/tracker-stm32/README.md
index a2bda13..e4518ab 100644
--- a/tracker-stm32/README.md
+++ b/tracker-stm32/README.md
@@ -31,3 +31,14 @@ Compile:
 Program NUCLEO board:
 
     pio run -t upload
+
+Program STM32:
+
+    ./openocd.sh
+
+    arm-none-eabi-gdb .pio/build/hercules/firmware.elf
+    (gdb) target remote :3333
+    (gdb) monitor arm semihosting enable
+    (gdb) load
+    (gdb) cont
+
diff --git a/tracker-stm32/platformio.ini b/tracker-stm32/platformio.ini
index a50655e..32ece90 100644
--- a/tracker-stm32/platformio.ini
+++ b/tracker-stm32/platformio.ini
@@ -9,4 +9,13 @@ lib_deps =
     jgromes/RadioLib@^6.0.0
     mikalhart/TinyGPSPlus@1.0.3
     arduino-libraries/SD@^1.2.4
-    koendv/STM32duino-Semihosting@1.0.5
+;   koendv/STM32duino-Semihosting@1.0.5
+
+; USB VID/PID is Openmoko Neo1973 serial
+build_flags =
+    -D PIO_FRAMEWORK_ARDUINO_ENABLE_CDC
+    -D USBCON
+    -D USBD_VID=0x1d50
+    -D USBD_PID=0x5120
+    -D USB_MANUFACTURER="HB9EGM"
+    -D USB_PRODUCT="\"HERCULES\""
diff --git a/tracker-stm32/src/main.cpp b/tracker-stm32/src/main.cpp
index e452712..7c2a273 100644
--- a/tracker-stm32/src/main.cpp
+++ b/tracker-stm32/src/main.cpp
@@ -2,7 +2,11 @@
 // This file is a bit of a mess, because first it contained aprs434 compressed
 // code running on STM32H7, and now it contains traditional APRS-over-LoRa for STM32F1
 #include <Arduino.h>
+
+#if defined(SEMIHOSTING)
 #include <SemihostingStream.h>
+#endif
+
 #include <RadioLib.h>
 #include <Wire.h>
 #include <TinyGPS++.h>
@@ -28,22 +32,15 @@ constexpr int ENCODER_SW_8 = PB15;
 
 constexpr int BAT_MEAS = PA0;
 
-// Date Type Codes defined in aprs434.github.io
-constexpr int DATA_TYPE_CODE_GEOLOCATION = 0;
-constexpr int DATA_TYPE_CODE_STATUS_REPORT = 1;
-
 // TODO: read these settings from the SD Card
-constexpr char CALLSIGN[] = "HB9EGM";
-constexpr int SSID = 7;
 constexpr char CALLSIGN_SSID_PATH[] = "HB9EGM-7>APZEGM";
-constexpr int PATH_CODE = 2; // metropolitan mobile
 constexpr char SYMBOL_TABLE_IDENTIFIER = '/';
 constexpr char SYMBOL_CODE_BICYCLE = 'b';
 constexpr char SYMBOL_CODE_FOOT = '[';
 constexpr long REPORT_TX_INTERVAL = 181000;
 
 constexpr long TEXT_TX_INTERVAL = 47000;
-constexpr char TEXT_REPORT[] = "mpb.li/git/lora-aprs-hb9egm"; // Max length=28
+constexpr char TEXT_REPORT[] = "mpb.li/git/lora-aprs-hb9egm"; // Max length=28 for compressed
 
 
 #if 0
@@ -68,7 +65,9 @@ constexpr size_t MAX_REPORT_LEN = 48;
 size_t report_len = 0;
 uint8_t report[MAX_REPORT_LEN];
 
+#if defined(SEMIHOSTING)
 SemihostingStream sh;
+#endif
 
 static char letterize(int x) {
     return (char) x + 65;
@@ -76,7 +75,21 @@ static char letterize(int x) {
 
 void setup() {
     Wire.begin();
+    SerialUSB.begin();
     pinMode(LED_STATUSn, OUTPUT);
+    pinMode(LED_TXn, OUTPUT);
+    digitalWrite(LED_TXn, HIGH);
+
+    digitalWrite(EN_PA, LOW);
+    pinMode(EN_PA, OUTPUT);
+    digitalWrite(EN_RX, LOW);
+    pinMode(EN_RX, OUTPUT);
+
+    pinMode(ENCODER_SW_1, INPUT_PULLUP);
+    pinMode(ENCODER_SW_2, INPUT_PULLUP);
+    pinMode(ENCODER_SW_4, INPUT_PULLUP);
+    pinMode(ENCODER_SW_8, INPUT_PULLUP);
+    pinMode(BTN1n, INPUT);
 
 #if 0
     pinMode(SD_CS, OUTPUT);
@@ -87,64 +100,82 @@ void setup() {
     }
 #endif
 
-    sh.print(F("START"));
     serialGNSS.begin(9600);
 
+#if defined(SEMIHOSTING)
     sh.print(F("[RFM] Init "));
+#endif
     int state = radio.begin(433.775);
     if (state == RADIOLIB_ERR_NONE) {
+#if defined(SEMIHOSTING)
         sh.println(F("success!"));
+#endif
     } else {
+#if defined(SEMIHOSTING)
         sh.print(F("failed, code "));
         sh.println(state);
+#endif
         while (true);
     }
 
     if (radio.setBandwidth(125.0) == RADIOLIB_ERR_INVALID_BANDWIDTH) {
+#if defined(SEMIHOSTING)
         sh.println(F("Selected bandwidth is invalid for this module!"));
+#endif
         while (true);
     }
 
     if (radio.setSpreadingFactor(12) == RADIOLIB_ERR_INVALID_SPREADING_FACTOR) {
+#if defined(SEMIHOSTING)
         sh.println(F("Selected spreading factor is invalid for this module!"));
+#endif
         while (true);
     }
 
     if (radio.setCodingRate(5) == RADIOLIB_ERR_INVALID_CODING_RATE) {
+#if defined(SEMIHOSTING)
         sh.println(F("Selected coding rate is invalid for this module!"));
+#endif
         while (true);
     }
 
     // NOTE: value 0x34 is reserved for LoRaWAN networks and should not be used
     if (radio.setSyncWord(0x14) != RADIOLIB_ERR_NONE) {
+#if defined(SEMIHOSTING)
         sh.println(F("Unable to set sync word!"));
+#endif
         while (true);
     }
 
     if (radio.setOutputPower(20) == RADIOLIB_ERR_INVALID_OUTPUT_POWER) {
+#if defined(SEMIHOSTING)
         sh.println(F("Selected output power is invalid for this module!"));
+#endif
         while (true);
     }
 
     if (radio.setPreambleLength(8) == RADIOLIB_ERR_INVALID_PREAMBLE_LENGTH) {
+#if defined(SEMIHOSTING)
         sh.println(F("Selected preamble length is invalid for this module!"));
+#endif
         while (true);
     }
 
     // radio.setRfSwitchPins(4, 5);
+
+    digitalWrite(LED_STATUSn, HIGH);
 }
 
 static void handle_radio_error(int state)
 {
+#if defined(SEMIHOSTING)
     if (state == RADIOLIB_ERR_NONE) {
         sh.print(F(" RFM OK Datarate: "));
         sh.print(radio.getDataRate());
         sh.println(F(" bps"));
-
     }
     else if (state == RADIOLIB_ERR_PACKET_TOO_LONG) {
         sh.println(F(" too long!"));
-
     }
     else if (state == RADIOLIB_ERR_TX_TIMEOUT) {
         sh.println(F(" timeout!"));
@@ -154,6 +185,7 @@ static void handle_radio_error(int state)
         sh.print(F(" failed, code "));
         sh.println(state);
     }
+#endif
 }
 
 void append_position_report()
@@ -192,6 +224,28 @@ void append_position_report()
     report[report_len++] = 0x47;
 }
 
+static void init_report()
+{
+    report_len = 0;
+
+    report[report_len++] = '<';
+    report[report_len++] = 0xFF;
+    report[report_len++] = 0x01;
+
+    const char* p = CALLSIGN_SSID_PATH;
+    while (*p) {
+        report[report_len++] = *(p++);
+    }
+}
+
+static int read_encoder()
+{
+    return 15 - (digitalRead(ENCODER_SW_1) +
+        2 * digitalRead(ENCODER_SW_2) +
+        4 * digitalRead(ENCODER_SW_4) +
+        8 * digitalRead(ENCODER_SW_8));
+}
+
 void loop()
 {
     while (serialGNSS.available() > 0) {
@@ -202,6 +256,56 @@ void loop()
     if (now - lastGnssPoll > 1000) {
         lastGnssPoll = now;
 
+        const int encoder_value = read_encoder();
+        const bool btn1 = digitalRead(BTN1n) == 0;
+        digitalWrite(LED_TXn, not btn1);
+
+        if (encoder_value == 1) {
+            digitalWrite(EN_RX, HIGH);
+            digitalWrite(EN_PA, LOW);
+        }
+        else if (encoder_value == 2) {
+            digitalWrite(EN_RX, LOW);
+            digitalWrite(EN_PA, HIGH);
+        }
+        else {
+            digitalWrite(EN_RX, LOW);
+            digitalWrite(EN_PA, LOW);
+        }
+
+        if (SerialUSB) {
+            const long latitude = gps.location.lat();
+            SerialUSB.print(F("Lat "));
+            SerialUSB.print(latitude);
+
+            const long longitude = gps.location.lng();
+            SerialUSB.print(F(" Lon "));
+            SerialUSB.print(longitude);
+
+            const byte SIV = gps.satellites.value();
+            SerialUSB.print(F(" SIV: "));
+            SerialUSB.print(SIV);
+
+            SerialUSB.print(F(" Enc: "));
+            SerialUSB.print(encoder_value);
+
+            SerialUSB.print(F(" BTN: "));
+            SerialUSB.println((int)btn1);
+        }
+    }
+}
+
+void oldloop()
+{
+    while (serialGNSS.available() > 0) {
+        gps.encode(serialGNSS.read());
+    }
+
+    const auto now = millis();
+    if (now - lastGnssPoll > 1000) {
+        lastGnssPoll = now;
+
+#if 0
         const long latitude = gps.location.lat();
         sh.print(F("Lat "));
         sh.print(latitude);
@@ -213,23 +317,14 @@ void loop()
         const byte SIV = gps.satellites.value();
         sh.print(F(" SIV: "));
         sh.println(SIV);
+#endif
+
         if (now - lastPositionReport > REPORT_TX_INTERVAL) {
             lastPositionReport = now;
 
-            digitalWrite(LED_STATUSn, LOW);
-
-            report_len = 0;
-
-            report[report_len++] = '<';
-            report[report_len++] = 0xFF;
-            report[report_len++] = 0x01;
-
-            const char* p = CALLSIGN_SSID_PATH;
-            while (*p) {
-                report[report_len++] = *p;
-                p++;
-            }
+            digitalWrite(LED_TXn, LOW);
 
+            init_report();
             report[report_len++] = ':';
             report[report_len++] = '!';
             report[report_len++] = SYMBOL_TABLE_IDENTIFIER;
@@ -237,12 +332,37 @@ void loop()
             int state = radio.transmit(report, report_len);
             handle_radio_error(state);
 
-            digitalWrite(LED_STATUSn, HIGH);
+            digitalWrite(LED_TXn, HIGH);
+        }
+    }
+
+    if (now - lastTextReport > TEXT_TX_INTERVAL) {
+        lastTextReport = now;
+        digitalWrite(LED_TXn, LOW);
+
+        init_report();
+        report[report_len++] = ':';
+        report[report_len++] = '>';
+        const char* p = TEXT_REPORT;
+        while (*p) {
+            report[report_len++] = *(p++);
         }
+
+        int state = radio.transmit(report, report_len);
+        handle_radio_error(state);
+
+        digitalWrite(LED_TXn, HIGH);
     }
 }
 
 #if 0
+// Date Type Codes defined in aprs434.github.io
+constexpr int DATA_TYPE_CODE_GEOLOCATION = 0;
+constexpr int DATA_TYPE_CODE_STATUS_REPORT = 1;
+constexpr char CALLSIGN[] = "HB9EGM";
+constexpr int SSID = 7;
+constexpr int PATH_CODE = 2; // metropolitan mobile
+
 void loop()
 {
     while (serialGNSS.available() > 0) {