Try out the fsk

Makefile

@@ -4,12 +4,12 @@
 # 1 = enable
 
 # ---- STOCK QUANSHENG FEATURES ----
-ENABLE_FMRADIO                	?= 1
+ENABLE_FMRADIO                	?= 0
 ENABLE_UART                   	?= 1
 ENABLE_AIRCOPY                	?= 0
 ENABLE_NOAA                   	?= 0
 ENABLE_VOICE                  	?= 0
-ENABLE_VOX                    	?= 1
+ENABLE_VOX                    	?= 0
 ENABLE_ALARM                  	?= 0
 ENABLE_TX1750                 	?= 1
 ENABLE_PWRON_PASSWORD         	?= 0
@@ -138,6 +138,7 @@ OBJS += app/chFrScanner.o
 OBJS += app/common.o
 OBJS += app/dtmf.o
 OBJS += app/fskmodem.o
+OBJS += app/messages.o
 ifeq ($(ENABLE_REGA),1)
 	OBJS += app/rega.o
 endif
@@ -176,6 +177,7 @@ OBJS += settings.o
 ifeq ($(ENABLE_AIRCOPY),1)
 	OBJS += ui/aircopy.o
 endif
+OBJS += ui/messages.o
 OBJS += ui/battery.o
 ifeq ($(ENABLE_FMRADIO),1)
 	OBJS += ui/fmradio.o

app/app.c

@@ -91,6 +91,7 @@
 #include "ui/menu.h"
 #include "ui/status.h"
 #include "ui/ui.h"
+#include "messages.h"
 
 static bool flagSaveVfo;
 static bool flagSaveSettings;
@@ -760,6 +761,7 @@ static void CheckRadioInterrupts(void) {
             }
 #endif
         }
+        FSK_HANDLE_IRQ(interrupts.__raw);
     }
 }
 

app/fskmodem.c

@@ -3,7 +3,9 @@
 //
 
 #include "fskmodem.h"
-#include "eeprom.h"
+//#include "messages.h"
+#include "driver/uart.h"
+#include "../ui/messages.h"
 
 uint16_t TONE2_FREQ;
 
@@ -15,6 +17,13 @@ uint8_t *dataPTR = dataPacket.data;
 
 SMSEnteringState gEnteringSMS = SMS_NOT_ENTERING;
 
+typedef enum {
+    Receiving,
+    Ready
+} RXState;
+
+RXState rxState = Ready;
+
 void MSG_ConfigureFSK(bool rx) {
     BK4819_WriteRegister(BK4819_REG_70, TONE2_ENABLE_BIT | (96U << 0));
 
@@ -115,18 +124,18 @@ uint16_t calculateCRC(uint8_t *data, size_t length) {
 
 
 void processReceivedPacket(DataPacket *packet) {
-    char String[31 + DataPacketDataSize];
+    char String[18];
     char numBuf[11];  // Enough for any 64-bit unsigned integer
     const unsigned int vfo = (gEeprom.CROSS_BAND_RX_TX == CROSS_BAND_OFF) ? gEeprom.RX_VFO
                                                                           : gEeprom.TX_VFO;
-    if (dataPacket.dest == gEeprom.FSKSRCAddress) {
+
+    if (packet->dest == gEeprom.FSKSRCAddress) {
+        AUDIO_PlayBeep(BEEP_500HZ_60MS_DOUBLE_BEEP);
         BK4819_PlaySingleTone(1000, 250, 127, true);
         strcpy(String, "SMS by ");
         itoa(packet->src, numBuf);  // Convert number to string
         strcat(String, numBuf);
-        strcat(String, ": ");
+        MESSAGES_SAVE();
-        strcat(String, (char *)packet->data);
-
         UI_DisplayPopup(String);
 #ifdef ENABLE_FEAT_F4HWN
         if (isMainOnly()) {
@@ -147,7 +156,7 @@ void processReceivedPacket(DataPacket *packet) {
         }
     }
 
-    memset(packet, 0, DataPacketDataSize); // Clear data after processing (example action)
+    memset(packet, 0, sizeof(DataPacket)); // Clear data after processing (example action)
 }
 
 
@@ -316,3 +325,64 @@ void prepareDataPacket() {
     EEPROM_WriteBuffer(SEQParameterEEPROM, Data);
     dataPacket.ttl = 20;
 }
+
+void FSK_HANDLE_IRQ(unsigned short irq) {
+    //const uint16_t rx_sync_flags   = BK4819_ReadRegister(BK4819_REG_0B);
+
+    const bool rx_sync = (irq & BK4819_REG_02_FSK_RX_SYNC) != 0;
+    const bool rx_fifo_almost_full = (irq & BK4819_REG_02_FSK_FIFO_ALMOST_FULL) != 0;
+    const bool rx_finished = (irq & BK4819_REG_02_FSK_RX_FINISHED) != 0;
+
+    //UART_printf("\nMSG : S%i, F%i, E%i | %i", rx_sync, rx_fifo_almost_full, rx_finished, irq);
+
+    if (rx_sync) {
+        // prevent listening to fsk data and squelch (kamilsss655)
+        // CTCSS codes seem to false trigger the rx_sync
+        if (gCurrentCodeType == CODE_TYPE_OFF)
+            AUDIO_AudioPathOff();
+        gFSKWriteIndex = 0;
+        memset(&inBoundPacket, 0, sizeof(DataPacket));
+        rxState = Receiving;
+        UART_String("Sync\n");
+    }
+
+    if (rx_fifo_almost_full && rxState == Receiving) {
+        const uint16_t count = BK4819_ReadRegister(BK4819_REG_5E) & (7u << 0);  // Almost full threshold
+        uint16_t *ptr = (uint16_t *) &inBoundPacket;
+        size_t wordCount = sizeof(inBoundPacket) / sizeof(uint16_t);
+
+        for (uint16_t i = 0; i < count && gFSKWriteIndex < wordCount; i++) {
+            ptr[gFSKWriteIndex++] = BK4819_ReadRegister(BK4819_REG_5F);
+            UART_Send((const void *) &ptr[gFSKWriteIndex - 1], 2);
+        }
+
+        SYSTEM_DelayMs(10);
+    }
+
+    if (rx_finished) {
+        // Turn off green LED
+        BK4819_FskClearFifo();
+
+        rxState = Ready;
+        UART_String("FSK end\n");
+
+        if (gFSKWriteIndex > 2) {
+            // Validate checksum (assuming last 2 bytes are CRC-16)
+            //size_t dataLength = sizeof(inBoundPacket.data) - 2;
+            //uint16_t receivedCRC = (inBoundPacket.data[dataLength] << 8) | inBoundPacket.data[dataLength + 1];
+            //uint16_t calculatedCRC = calculateCRC(inBoundPacket.data, dataLength);
+
+            //if (receivedCRC == calculatedCRC) {
+            processReceivedPacket(&inBoundPacket);
+            //}
+        }
+
+        APP_EndTransmission();
+        FUNCTION_Select(FUNCTION_FOREGROUND);
+        gUpdateStatus = true;
+        gUpdateDisplay = true;
+        gFlagEndTransmission = false;
+
+        gFSKWriteIndex = 0;
+    }
+}

app/fskmodem.h

@@ -78,16 +78,16 @@
 #define FSK_CRC_ON (1U << 6)
 #define FSK_CRC_OFF (0U << 6)
 
-#define DataPacketDataSize (35)
+#define DataPacketDataSize (37)
 
-#define SEQParameterEEPROM 0x1BD0;
+#define SEQParameterEEPROM 0x1BD0
 
 typedef struct {
-    uint32_t dest;
+    uint32_t dest; //4bytes
-    uint32_t src;
+    uint32_t src; //4bytes
-    uint8_t seq;
+    uint8_t seq; //1bytes
-    uint8_t ttl;
+    uint8_t ttl; //1bytes
-    uint8_t flags;
+    uint8_t flags; //1bytes
     uint8_t data[DataPacketDataSize];
 } DataPacket;
 
@@ -115,4 +115,6 @@ extern SMSEnteringState gEnteringSMS;
 
 extern uint8_t *dataPTR;
 
+void FSK_HANDLE_IRQ(unsigned short irq);
+
 #endif //UV_K5_FIRMWARE_CUSTOM_FSKMODEM_H

app/main.c

@@ -49,21 +49,6 @@
 #include "ui/ui.h"
 #include <stdlib.h>
 
-#define T9Count 9
-
-const char T9Table[10][T9Count] = {
-        {'#', '(', ')', ';', ':', '<', '>', '/',  '0'},
-        {',', '.', '?', '&', '!', ' ', '-', '_',  '1'},
-        {'a', 'b', 'c', 'A', 'B', 'C', '[', ']',  '2'},
-        {'d', 'e', 'f', 'D', 'E', 'F', '@', '%',  '3'},
-        {'g', 'h', 'i', 'G', 'H', 'I', '~', '$',  '4'},
-        {'j', 'k', 'l', 'J', 'K', 'L', '|', '*',  '5'},
-        {'m', 'n', 'o', 'M', 'N', 'O', '{', '}',  '6'},
-        {'p', 'q', 'r', 's', 'P', 'Q', 'R', 'S',  '7'},
-        {'t', 'u', 'v', 'T', 'U', 'V', '"', '\'', '8'},
-        {'w', 'x', 'y', 'z', 'W', 'X', 'Y', 'Z',  '9'}
-};
-
 static void toggle_chan_scanlist(void) {   // toggle the selected channels scanlist setting
 
     if (SCANNER_IsScanning())
@@ -691,6 +676,11 @@ static void MAIN_Key_MENU(bool bKeyPressed, bool bKeyHeld) {
         return;
     }
 
+    if (gWasFKeyPressed && bKeyPressed) {
+        gRequestDisplayScreen = DISPLAY_MESSAGES;
+        return;
+    }
+
     if (!bKeyPressed && !gDTMF_InputMode) { // menu key released
         const bool bFlag = !gInputBoxIndex;
         gInputBoxIndex = 0;
@@ -906,11 +896,6 @@ static void MAIN_Key_UP_DOWN(bool bKeyPressed, bool bKeyHeld, int8_t Direction)
     gPttWasReleased = true;
 }
 
-void updatePrevChar(KEY_Code_t Key) {
-    if (Key != prevKey) {
-        prevKey = Key;
-    }
-}
 
 void MAIN_ProcessKeys(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld) {
 #ifdef ENABLE_FMRADIO
@@ -939,101 +924,6 @@ void MAIN_ProcessKeys(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld) {
 //      Key = KEY_SIDE2;      // what's this doing ???
 //  }
 
-    if (Key == KEY_9 && bKeyHeld) {
-        if (bKeyPressed) {
-            if (gEnteringSMS == SMS_NOT_ENTERING) {
-                gEnteringSMS = SMS_ENTERING_DEST;
-                updatePrevChar(Key);
-                return;
-            }
-        }
-    }
-    if (Key == KEY_MENU) {
-        if (gEnteringSMS == SMS_ENTERING_DEST) {
-            if (bKeyPressed) {
-                memset(dataPacket.data, 0, DataPacketDataSize);
-                prepareDataPacket();
-                dataPacket.flags = 126;
-                gEnteringSMS = SMS_ENTERING_MESSAGE;
-            }
-            return;
-        }
-        if (gEnteringSMS == SMS_ENTERING_MESSAGE) {
-            if (bKeyPressed) {
-                if (strlen((char *) dataPacket.data)) {
-                    const unsigned int vfo = (gEeprom.CROSS_BAND_RX_TX == CROSS_BAND_OFF) ? gEeprom.RX_VFO
-                                                                                          : gEeprom.TX_VFO;
-                    if (VfoState[vfo] == VFO_STATE_NORMAL && !TX_freq_check(gCurrentVfo->freq_config_TX.Frequency)) {
-
-                        RADIO_PrepareTX();
-                            BK4819_SetScramble(gCurrentVfo->SCRAMBLING_TYPE);
-                        BK4819_ToggleGpioOut(BK4819_GPIO5_PIN1_RED, true);
-                        MSG_FSKSendData(&dataPacket);
-                        BK4819_ToggleGpioOut(BK4819_GPIO5_PIN1_RED, false);
-                        //MSG_EnableRX(true);
-                        gVfoConfigureMode = VFO_CONFIGURE;
-                        dataPTR = dataPacket.data;
-                        memset(dataPacket.data, 0, DataPacketDataSize);
-                    }
-                    gEnteringSMS = SMS_NOT_ENTERING;
-                }
-            }
-            return;
-        }
-    }
-    if (Key == KEY_EXIT && gEnteringSMS != SMS_NOT_ENTERING) {
-        if (bKeyHeld) {
-            if (bKeyPressed) {
-                gEnteringSMS = SMS_NOT_ENTERING;
-                dataPTR = dataPacket.data;
-                memset(dataPacket.data, 0, DataPacketDataSize);
-            }
-        } else {
-            if (bKeyPressed) {
-                if (gEnteringSMS == SMS_ENTERING_MESSAGE) {
-                    if (dataPacket.data <= dataPTR) {
-                        *dataPTR = '\0';
-                        if (dataPacket.data < dataPTR) {
-                            dataPTR--;
-                        }
-                        *dataPTR = '\0';
-                    }
-                } else if (gEnteringSMS == SMS_ENTERING_DEST) {
-                    dataPacket.dest /= 10;
-                }
-            }
-        }
-        updatePrevChar(Key);
-        return;
-    }
-
-    if (gEnteringSMS != SMS_NOT_ENTERING && !bKeyHeld) {
-        if (!dataPTR) {
-            dataPTR = dataPacket.data;
-        }
-        if (gEnteringSMS == SMS_ENTERING_MESSAGE) {
-            if (bKeyPressed) {
-                if (prevKey != Key) {
-                    dataPTR++;
-                    if (dataPTR - dataPacket.data >= DataPacketDataSize) {
-                        dataPTR = dataPacket.data;
-                    }
-                    prevLetter = 0;
-                }
-                *(dataPTR - 1) = T9Table[Key][(prevLetter++) % T9Count];
-                updatePrevChar(Key);
-            }
-            return;
-        } else if (gEnteringSMS == SMS_ENTERING_DEST) {
-            if (bKeyPressed) {
-                dataPacket.dest *= 10;
-                dataPacket.dest += Key;
-                prevLetter = 0;
-            }
-            return;
-        }
-    }
-
     switch (Key) {
 #ifdef ENABLE_FEAT_F4HWN
         case KEY_SIDE1:

app/messages.c

@@ -3,3 +3,187 @@
 //
 
 #include "messages.h"
+#include "ui/ui.h"
+#include "driver/uart.h"
+
+#define T9Count 9
+
+const char T9Table[10][T9Count] = {
+        {'#', '(', ')', ';', ':', '<', '>', '/',  '0'},
+        {',', '.', '?', '&', '!', ' ', '-', '_',  '1'},
+        {'a', 'b', 'c', 'A', 'B', 'C', '[', ']',  '2'},
+        {'d', 'e', 'f', 'D', 'E', 'F', '@', '%',  '3'},
+        {'g', 'h', 'i', 'G', 'H', 'I', '~', '$',  '4'},
+        {'j', 'k', 'l', 'J', 'K', 'L', '|', '*',  '5'},
+        {'m', 'n', 'o', 'M', 'N', 'O', '{', '}',  '6'},
+        {'p', 'q', 'r', 's', 'P', 'Q', 'R', 'S',  '7'},
+        {'t', 'u', 'v', 'T', 'U', 'V', '"', '\'', '8'},
+        {'w', 'x', 'y', 'z', 'W', 'X', 'Y', 'Z',  '9'}
+};
+
+
+uint8_t gActiveMessage = 0;
+
+StoredPacket loadedPacket;
+
+void MESSAGES_SAVE() {
+    uint8_t Data[8];
+    EEPROM_ReadBuffer(SEQParameterEEPROM, Data, 8);
+    uint8_t msgIndex = Data[1];
+    if (msgIndex >= MESSAGES_COUNT) {
+        msgIndex = 0;
+    }
+    Data[1]++;
+    EEPROM_WriteBuffer(SEQParameterEEPROM, Data);
+    EEPROM_WriteBuffer(MESSAGES_START + (msgIndex * sizeof(StoredPacket)) + 0,
+                       (uint8_t *) &inBoundPacket + 4);   // metadata
+    EEPROM_WriteBuffer(MESSAGES_START + (msgIndex * sizeof(StoredPacket)) + 8,
+                       (uint8_t *) &inBoundPacket + 12);   // message part 1
+    EEPROM_WriteBuffer(MESSAGES_START + (msgIndex * sizeof(StoredPacket)) + 16,
+                       (uint8_t *) &inBoundPacket + 20); // message part 2
+    EEPROM_WriteBuffer(MESSAGES_START + (msgIndex * sizeof(StoredPacket)) + 24,
+                       (uint8_t *) &inBoundPacket + 28); // message part 3
+    EEPROM_WriteBuffer(MESSAGES_START + (msgIndex * sizeof(StoredPacket)) + 32,
+                       (uint8_t *) &inBoundPacket + 36); // message part 4
+
+}
+
+void MESSAGES_GET() {
+    EEPROM_ReadBuffer(MESSAGES_START + (gActiveMessage * sizeof(StoredPacket)), &loadedPacket, sizeof(StoredPacket));
+}
+
+void MESSAGES_DELETE() {
+
+}
+
+void updatePrevChar(KEY_Code_t Key) {
+    if (Key != prevKey) {
+        prevKey = Key;
+    }
+
+}
+
+
+void MESSAGES_ProcessKeys(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld) {
+    if (gEnteringSMS != SMS_NOT_ENTERING && !bKeyHeld && Key <= KEY_9) {
+        if (!dataPTR || dataPTR < dataPacket.data) {
+            dataPTR = dataPacket.data;
+        }
+        if (gEnteringSMS == SMS_ENTERING_MESSAGE) {
+            if (bKeyPressed) {
+                if (prevKey != Key) {
+                    dataPTR++;
+                    if (dataPTR - dataPacket.data >= DataPacketDataSize) {
+                        dataPTR = dataPacket.data;
+                    }
+                    prevLetter = 0;
+                }
+                *(dataPTR - 1) = T9Table[Key][(prevLetter++) % T9Count];
+                updatePrevChar(Key);
+            }
+            return;
+        } else if (gEnteringSMS == SMS_ENTERING_DEST) {
+            if (bKeyPressed) {
+                dataPacket.dest *= 10;
+                dataPacket.dest += Key;
+                prevLetter = 0;
+            }
+            return;
+        }
+    }
+
+
+    switch (Key) {
+        case KEY_PTT:
+        case KEY_MENU:
+            if (gEnteringSMS == SMS_NOT_ENTERING) {
+                if (bKeyPressed) {
+                    gEnteringSMS = SMS_ENTERING_DEST;
+                    updatePrevChar(Key);
+                }
+            } else if (gEnteringSMS == SMS_ENTERING_DEST) {
+                if (bKeyPressed) {
+                    memset(dataPacket.data, 0, DataPacketDataSize);
+                    prepareDataPacket();
+                    dataPacket.flags = 126;
+                    gEnteringSMS = SMS_ENTERING_MESSAGE;
+                }
+                return;
+            } else if (gEnteringSMS == SMS_ENTERING_MESSAGE) {
+                if (bKeyPressed) {
+                    if (strlen((char *) dataPacket.data)) {
+                        const unsigned int vfo = (gEeprom.CROSS_BAND_RX_TX == CROSS_BAND_OFF) ? gEeprom.RX_VFO
+                                                                                              : gEeprom.TX_VFO;
+                        if (VfoState[vfo] == VFO_STATE_NORMAL &&
+                            !TX_freq_check(gCurrentVfo->freq_config_TX.Frequency)) {
+
+                            RADIO_PrepareTX();
+                            BK4819_SetScramble(gCurrentVfo->SCRAMBLING_TYPE);
+                            BK4819_ToggleGpioOut(BK4819_GPIO5_PIN1_RED, true);
+                            MSG_FSKSendData(&dataPacket);
+                            BK4819_ToggleGpioOut(BK4819_GPIO5_PIN1_RED, false);
+                            MSG_EnableRX(true);
+                            gVfoConfigureMode = VFO_CONFIGURE;
+                            dataPTR = dataPacket.data;
+                            memset(dataPacket.data, 0, DataPacketDataSize);
+                        }
+                        gEnteringSMS = SMS_NOT_ENTERING;
+                    }
+                }
+                return;
+            }
+            break;
+        case KEY_UP:
+            if (bKeyPressed) {
+                gActiveMessage++;
+                if (gActiveMessage >= MESSAGES_COUNT) {
+                    gActiveMessage = 0;
+                }
+                MESSAGES_GET();
+            }
+            break;
+        case KEY_DOWN:
+            if (bKeyPressed) {
+                gActiveMessage--;
+                if (gActiveMessage >= MESSAGES_COUNT) {
+                    gActiveMessage = MESSAGES_COUNT - 1;
+                }
+                MESSAGES_GET();
+            }
+            break;
+        case KEY_EXIT:
+            if (gEnteringSMS != SMS_NOT_ENTERING) {
+                if (bKeyHeld) {
+                    if (bKeyPressed) {
+                        gEnteringSMS = SMS_NOT_ENTERING;
+                        dataPTR = dataPacket.data;
+                        memset(dataPacket.data, 0, DataPacketDataSize);
+                    }
+                } else {
+                    if (bKeyPressed) {
+                        if (gEnteringSMS == SMS_ENTERING_MESSAGE) {
+                            if (dataPacket.data <= dataPTR) {
+                                *dataPTR = '\0';
+                                if (dataPacket.data < dataPTR) {
+                                    dataPTR--;
+                                }
+                                *dataPTR = '\0';
+                            }
+                        } else if (gEnteringSMS == SMS_ENTERING_DEST) {
+                            dataPacket.dest /= 10;
+                        }
+                    }
+                }
+            } else {
+                if (bKeyPressed) {
+                    updatePrevChar(Key);
+                    gRequestDisplayScreen = DISPLAY_MAIN;
+                }
+            }
+            break;
+        default:
+            if (!bKeyHeld && bKeyPressed)
+                gBeepToPlay = BEEP_500HZ_60MS_DOUBLE_BEEP_OPTIONAL;
+            break;
+    }
+}

app/messages.h

@@ -2,21 +2,30 @@
 // Created by bruno on 3/30/25.
 //
 
-#ifndef BRNQUANFW_MESSAGES_H
+//#ifndef BRNQUANFW_MESSAGES_H
-#define BRNQUANFW_MESSAGES_H
+//#define BRNQUANFW_MESSAGES_H
 #include "fskmodem.h"
+#include "../driver/keyboard.h"
+#include "../driver/eeprom.h"
 
-#define MESSAGES_START 0X1D00;
+#define MESSAGES_START (0x1D00)
-#define MESSAGES_COUNT 6;
+#define MESSAGES_COUNT (6)
+
+typedef struct {
+    uint32_t src;
+    uint8_t seq;
+    uint8_t ttl;
+    uint8_t flags;
+    uint8_t data[DataPacketDataSize];
+} StoredPacket;
 
 extern uint8_t gActiveMessage;
 
+extern StoredPacket loadedPacket;
+
 void MESSAGES_GET();
 void MESSAGES_DELETE();
-void SCANNER_ProcessKeys(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld);
+void MESSAGES_SAVE();
-void SCANNER_Stop(void);
+void MESSAGES_ProcessKeys(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld);
-void SCANNER_TimeSlice10ms(void);
-void SCANNER_TimeSlice500ms(void);
-bool SCANNER_IsScanning(void);
 
-#endif //BRNQUANFW_MESSAGES_H
+//#endif //BRNQUANFW_MESSAGES_H

driver/uart.c

@@ -15,6 +15,7 @@
  */
 
 #include <stdbool.h>
+#include <string.h>
 #include "bsp/dp32g030/dma.h"
 #include "bsp/dp32g030/syscon.h"
 #include "bsp/dp32g030/uart.h"
@@ -23,8 +24,7 @@
 static bool UART_IsLogEnabled;
 uint8_t UART_DMA_Buffer[256];
 
-void UART_Init(void)
+void UART_Init(void) {
-{
     uint32_t Delta;
     uint32_t Positive;
     uint32_t Frequency;
@@ -58,8 +58,7 @@ void UART_Init(void)
                    // Destination
                    | DMA_CH_MOD_MD_ADDMOD_BITS_INCREMENT
                    | DMA_CH_MOD_MD_SIZE_BITS_8BIT
-        | DMA_CH_MOD_MD_SEL_BITS_SRAM
+                   | DMA_CH_MOD_MD_SEL_BITS_SRAM;
-        ;
     DMA_INTEN = 0;
     DMA_INTST = 0
                 | DMA_INTST_CH0_TC_INTST_BITS_SET
@@ -69,14 +68,12 @@ void UART_Init(void)
                 | DMA_INTST_CH0_THC_INTST_BITS_SET
                 | DMA_INTST_CH1_THC_INTST_BITS_SET
                 | DMA_INTST_CH2_THC_INTST_BITS_SET
-        | DMA_INTST_CH3_THC_INTST_BITS_SET
+                | DMA_INTST_CH3_THC_INTST_BITS_SET;
-        ;
     DMA_CH0->CTR = 0
                    | DMA_CH_CTR_CH_EN_BITS_ENABLE
                    | ((0xFF << DMA_CH_CTR_LENGTH_SHIFT) & DMA_CH_CTR_LENGTH_MASK)
                    | DMA_CH_CTR_LOOP_BITS_ENABLE
-        | DMA_CH_CTR_PRI_BITS_MEDIUM
+                   | DMA_CH_CTR_PRI_BITS_MEDIUM;
-        ;
     UART1->IF = UART_IF_RXTO_BITS_SET;
 
     DMA_CTR = (DMA_CTR & ~DMA_CTR_DMAEN_MASK) | DMA_CTR_DMAEN_BITS_ENABLE;
@@ -84,8 +81,7 @@ void UART_Init(void)
     UART1->CTRL |= UART_CTRL_UARTEN_BITS_ENABLE;
 }
 
-void UART_Send(const void *pBuffer, uint32_t Size)
+void UART_Send(const void *pBuffer, uint32_t Size) {
-{
     const uint8_t *pData = (const uint8_t *) pBuffer;
     uint32_t i;
 
@@ -96,8 +92,11 @@ void UART_Send(const void *pBuffer, uint32_t Size)
     }
 }
 
-void UART_LogSend(const void *pBuffer, uint32_t Size)
+void UART_String(const char *str) {
-{
+    UART_Send(str, strlen(str));
+}
+
+void UART_LogSend(const void *pBuffer, uint32_t Size) {
     if (UART_IsLogEnabled) {
         UART_Send(pBuffer, Size);
     }

driver/uart.h

@@ -25,6 +25,7 @@ extern uint8_t UART_DMA_Buffer[256];
 void UART_Init(void);
 void UART_Send(const void *pBuffer, uint32_t Size);
 void UART_LogSend(const void *pBuffer, uint32_t Size);
+void UART_String(const char *str);
 
 #endif
 

radio.c

@@ -732,6 +732,9 @@ void RADIO_SetupRegisters(bool switchToForeground) {
 
     RADIO_SetupAGC(gRxVfo->Modulation == MODULATION_AM, false);
 
+    MSG_EnableRX(true);
+    InterruptMask |= BK4819_REG_3F_FSK_RX_SYNC | BK4819_REG_3F_FSK_RX_FINISHED | BK4819_REG_3F_FSK_FIFO_ALMOST_FULL | BK4819_REG_3F_FSK_TX_FINISHED;
+
     // enable/disable BK4819 selected interrupts
     BK4819_WriteRegister(BK4819_REG_3F, InterruptMask);
 

settings.c

@@ -28,6 +28,7 @@
 #include "misc.h"
 #include "settings.h"
 #include "ui/menu.h"
+#include "app/messages.h"
 
 #ifdef ENABLE_FEAT_F4HWN_RESET_CHANNEL
 static const uint32_t gDefaultFrequencyTable[] =
@@ -43,6 +44,7 @@ static const uint32_t gDefaultFrequencyTable[] =
 EEPROM_Config_t gEeprom = {0};
 
 void SETTINGS_InitEEPROM(void) {
+    MESSAGES_GET();
     uint8_t Data[16] = {0};
     // 0E70..0E77
     EEPROM_ReadBuffer(0x0E70, Data, 8);

ui/main.c

@@ -434,7 +434,7 @@ void UI_DisplayMain(void) {
     UI_DisplayClear();
 
     if (gLowBattery && !gLowBatteryConfirmed) {
-        UI_DisplayPopup("LOW BATT");
+        UI_DisplayPopup("LOW BAT");
         ST7565_BlitFullScreen();
         return;
     }
@@ -549,21 +549,6 @@ void UI_DisplayMain(void) {
             }
 #endif
 
-
-            if (gEnteringSMS == SMS_ENTERING_DEST) {
-                UI_PrintString("SMS Dst", 0, 0, line - 1 /*, 8 */);
-                sprintf(String, "%ld", dataPacket.dest);
-                UI_PrintStringSmallNormal(String, 0, 0, line);
-                continue;
-            }
-
-            if (gEnteringSMS == SMS_ENTERING_MESSAGE) {
-                UI_PrintString("SMS Dat", 0, 0, line - 1 /*, 8 */);
-                sprintf(String, "%s", dataPacket.data);
-                UI_PrintStringSmallNormal(String, 0, 0, line);
-                continue;
-            }
-
             if (gDTMF_InputMode
 #ifdef ENABLE_DTMF_CALLING
                 || gDTMF_CallState != DTMF_CALL_STATE_NONE || gDTMF_IsTx

ui/messages.c

@@ -5,61 +5,102 @@
 #include "messages.h"
 
 
-void UI_DisplayMessages(void)
+// Convert a 32-bit number to a string (10 digits, zero-padded)
-{
+void u32_to_str(uint32_t num, char *str) {
-    char  String[19] = {0};
+    for (int i = 9; i >= 0; i--) {
-    char *pPrintStr = String;
+        str[i] = '0' + (num % 10);
-    sprintf("FRM:%d %d/%d", )
+        num /= 10;
-    bool bCentered;
+    }
-    uint8_t Start;
+    str[10] = '\0';
+}
 
+// Convert an 8-bit number to a 2-digit string (zero-padded)
+void u8_to_str(uint8_t num, char *str) {
+    str[0] = '0' + (num / 100);      // Hundreds place
+    str[1] = '0' + ((num / 10) % 10); // Tens place
+    str[2] = '0' + (num % 10);       // Ones place
+    str[3] = '\0';
+}
+
+
+void UI_DisplayMessages(void) {
+    char String[19];
     UI_DisplayClear();
-
+    if (gEnteringSMS != SMS_NOT_ENTERING) {
-    if (gScanSingleFrequency || (gScanCssState != SCAN_CSS_STATE_OFF && gScanCssState != SCAN_CSS_STATE_FAILED)) {
+        UI_PrintString("SMS write", 0, 0, 0 /*, 8 */);
-        sprintf(String, "FREQ:%u.%05u", gScanFrequency / 100000, gScanFrequency % 100000);
+        if (gEnteringSMS == SMS_ENTERING_DEST) {
-        pPrintStr = String;
+            UI_PrintString("SMS dest", 0, 0, 2 /*, 8 */);
+            u32_to_str(dataPacket.dest, String);
+            UI_PrintStringSmallNormal(String, 0, 0, 3);
+        } else if (gEnteringSMS == SMS_ENTERING_MESSAGE) {
+            UI_PrintString("SMS data", 0, 0, 2 /*, 8 */);
+            UI_PrintStringSmallNormal((const char *) dataPacket.data, 1, 0, 3);
+        }
     } else {
-        pPrintStr = "FREQ:**.*****";
+
+
+        String[0] = 'M';
+        String[1] = 'E';
+        String[2] = 'S';
+        String[3] = 'S';
+        String[4] = 'A';
+        String[5] = 'G';
+        String[6] = 'E';
+        String[7] = 'S';
+
+        for (size_t i = 8; i < 12; i++) {
+            String[i] = ' ';
         }
 
-    UI_PrintString(pPrintStr, 2, 0, 1 /*, 8 */);
+        uint8_t Data[8];
+        EEPROM_ReadBuffer(SEQParameterEEPROM, Data, 8);
 
-    if (gScanCssState < SCAN_CSS_STATE_FOUND || !gScanUseCssResult) {
+        String[13] = Data[1] == gActiveMessage ? 'L' : ' ';
-        pPrintStr = "CTC:******";
+        String[14] = '0' + gActiveMessage;
-    } else if (gScanCssResultType == CODE_TYPE_CONTINUOUS_TONE) {
+        String[15] = '/';
-        sprintf(String, "CTC:%u.%uHz", CTCSS_Options[gScanCssResultCode] / 10, CTCSS_Options[gScanCssResultCode] % 10);
+        String[16] = '0' + MESSAGES_COUNT;
-        pPrintStr = String;
+        String[17] = 0;
-    } else {
+
-        sprintf(String, "DCS:D%03oN", DCS_Options[gScanCssResultCode]);
+        UI_PrintString(String, 2, 0, 0 /*, 8 */);
-        pPrintStr = String;
+
+        String[0] = 'F';
+        String[1] = 'r';
+        String[2] = 'o';
+        String[3] = 'm';
+        String[4] = ':';
+        String[5] = ' ';
+        u32_to_str(loadedPacket.src, &String[6]);  // Write at offset 6
+        UI_PrintString(String, 2, 0, 1 /*, 8 */);
+
+        String[0] = 'S';
+        String[1] = 'E';
+        String[2] = 'Q';
+        String[3] = ':';
+        String[4] = ' ';
+        u8_to_str(loadedPacket.seq, &String[5]);  // Write at offset 5
+        String[8] = ' ';
+        String[9] = 'T';
+        String[10] = 'T';
+        String[11] = 'L';
+        String[12] = ':';
+        String[13] = ' ';
+        String[14] = 0;
+        u8_to_str(loadedPacket.ttl, &String[14]);  // Write at new offset
+        UI_PrintString(String, 2, 0, 2 /*, 8 */);
+
+        String[0] = 'F';
+        String[1] = 'l';
+        String[2] = 'a';
+        String[3] = 'g';
+        String[4] = 's';
+        String[5] = ':';
+        String[6] = ' ';
+        String[7] = 0;
+        u8_to_str(loadedPacket.flags, &String[7]);  // Write at offset 7
+        UI_PrintString(String, 2, 0, 3 /*, 8 */);
+
+        UI_PrintString("Data:", 0, 0, 4 /*, 8 */);
+        UI_PrintString((const char *) loadedPacket.data, 2, 0, 5 /*, 8 */);
     }
-
-    UI_PrintString(pPrintStr, 2, 0, 3 /*, 8 */);
-    memset(String, 0, sizeof(String));
-    if (gScannerSaveState == SCAN_SAVE_CHANNEL) {
-        pPrintStr = "SAV?";
-        Start     = 0;
-        bCentered = 1;
-    } else {
-        Start     = 2;
-        bCentered = 0;
-
-        if (gScannerSaveState == SCAN_SAVE_CHAN_SEL) {
-            strcpy(String, "SAV:");
-            UI_GenerateChannelStringEx(String + 5, gShowChPrefix, gScanChannel);
-            pPrintStr = String;
-        } else if (gScanCssState < SCAN_CSS_STATE_FOUND) {
-            strcpy(String, "SCN");
-            memset(String + 4, '.', (gScanProgressIndicator & 7) + 1);
-            pPrintStr = String;
-        } else if (gScanCssState == SCAN_CSS_STATE_FOUND) {
-            pPrintStr = "SCN CMP.";
-        } else {
-            pPrintStr = "SCN FAIL.";
-        }
-    }
-
-    UI_PrintString(pPrintStr, Start, bCentered ? 127 : 0, 5 /*, 8 */);
-
     ST7565_BlitFullScreen();
 }

ui/messages.h

@@ -4,7 +4,15 @@
 
 #ifndef BRNQUANFW_MESSAGES_H
 #define BRNQUANFW_MESSAGES_H
+#include "stdio.h"
+#include "helper.h"
+#include "../driver/st7565.h"
+#include "string.h"
+#include "../app/messages.h"
+#include "../app/fskmodem.h"
 
 void UI_DisplayMessages(void);
+void u8_to_str(uint8_t num, char *str);
+void u32_to_str(uint32_t num, char *str);
 
 #endif //BRNQUANFW_MESSAGES_H

ui/ui.c

@@ -39,6 +39,7 @@
 #include "ui/scanner.h"
 #include "ui/ui.h"
 #include "../misc.h"
+#include "messages.h"
 
 GUI_DisplayType_t gScreenToDisplay;
 GUI_DisplayType_t gRequestDisplayScreen = DISPLAY_INVALID;
@@ -52,6 +53,7 @@ void (*UI_DisplayFunctions[])(void) = {
     [DISPLAY_MAIN] = &UI_DisplayMain,
     [DISPLAY_MENU] = &UI_DisplayMenu,
     [DISPLAY_SCANNER] = &UI_DisplayScanner,
+    [DISPLAY_MESSAGES] = &UI_DisplayMessages,
 
 #ifdef ENABLE_FMRADIO
     [DISPLAY_FM] = &UI_DisplayFM,

ui/ui.h

@@ -25,7 +25,7 @@ enum GUI_DisplayType_t
     DISPLAY_MAIN = 0,
     DISPLAY_MENU,
     DISPLAY_SCANNER,
-    DISPLAY_MESSAGES
+    DISPLAY_MESSAGES,
 
 #ifdef ENABLE_FMRADIO
     DISPLAY_FM,