etm trace for nrf52840

hw/bsp/lpc18/boards/mcb1800/board.h

@@ -43,6 +43,15 @@
 
 static inline void board_lpc18_pinmux(void) {
   const PINMUX_GRP_T pinmuxing[] = {
+    // ETM Trace
+    #ifdef TRACE_ETM
+    { 0xF, 4, SCU_MODE_FUNC2 | SCU_MODE_HIGHSPEEDSLEW_EN },
+    { 0xF, 5, SCU_MODE_FUNC3 | SCU_MODE_HIGHSPEEDSLEW_EN },
+    { 0xF, 6, SCU_MODE_FUNC3 | SCU_MODE_HIGHSPEEDSLEW_EN },
+    { 0xF, 7, SCU_MODE_FUNC3 | SCU_MODE_HIGHSPEEDSLEW_EN },
+    { 0xF, 8, SCU_MODE_FUNC3 | SCU_MODE_HIGHSPEEDSLEW_EN },
+    #endif
+
     // LEDs
     { 0xD, 10, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4) },
     { 0xD, 11, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4 | SCU_MODE_PULLDOWN) },
@@ -65,15 +74,6 @@ static inline void board_lpc18_pinmux(void) {
 
     { 0x9, 5, SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_FUNC2 },			              // P9_5 USB1_VBUS_EN, USB1 VBus function
     { 0x2, 5, SCU_MODE_INACT  | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC2 }, // P2_5 USB1_VBUS, MUST CONFIGURE THIS SIGNAL FOR USB1 NORMAL OPERATION
-
-    // ETM Trace
-    #ifdef TRACE_ETM
-    { 0xF, 4, SCU_MODE_FUNC2 | SCU_MODE_HIGHSPEEDSLEW_EN },
-    { 0xF, 5, SCU_MODE_FUNC3 | SCU_MODE_HIGHSPEEDSLEW_EN },
-    { 0xF, 6, SCU_MODE_FUNC3 | SCU_MODE_HIGHSPEEDSLEW_EN },
-    { 0xF, 7, SCU_MODE_FUNC3 | SCU_MODE_HIGHSPEEDSLEW_EN },
-    { 0xF, 8, SCU_MODE_FUNC3 | SCU_MODE_HIGHSPEEDSLEW_EN },
-    #endif
   };
 
   Chip_SCU_SetPinMuxing(pinmuxing, sizeof(pinmuxing) / sizeof(PINMUX_GRP_T));

hw/bsp/nrf/boards/pca10056/board.h

@@ -36,7 +36,7 @@
 #define LED_STATE_ON          0
 
 // Button
-#define BUTTON_PIN            11
+#define BUTTON_PIN            25 // button 4
 #define BUTTON_STATE_ACTIVE   0
 
 // UART

hw/bsp/nrf/boards/pca10056/ozone/nrf52840.jdebug

@@ -0,0 +1,242 @@
+
+/*********************************************************************
+*
+*       OnProjectLoad
+*
+* Function description
+*   Project load routine. Required.
+*
+**********************************************************************
+*/
+void OnProjectLoad (void) {
+  // Dialog-generated settings
+  Project.AddSvdFile ("$(InstallDir)/Config/CPU/Cortex-M4F.svd");
+  Project.AddSvdFile ("$(InstallDir)/Config/Peripherals/ARMv7M.svd");
+
+  Project.SetDevice ("nRF52840_xxAA");
+  Project.SetHostIF ("USB", "");
+  Project.SetTargetIF ("SWD");
+  Project.SetTIFSpeed ("8 MHz");
+  Project.SetTraceSource ("Trace Pins");
+  Project.SetTracePortWidth (4);
+
+  // User settings
+  File.Open ("../../../../../../examples/device/cdc_msc/cmake-build-pca10056/cdc_msc.elf");
+}
+
+/*********************************************************************
+*
+*      TargetReset
+*
+* Function description
+*   Replaces the default target device reset routine. Optional.
+*
+* Notes
+*   This example demonstrates the usage when
+*   debugging a RAM program on a Cortex-M target device
+*
+**********************************************************************
+*/
+//void TargetReset (void) {
+//
+//  unsigned int SP;
+//  unsigned int PC;
+//  unsigned int VectorTableAddr;
+//
+//  Exec.Reset();
+//
+//  VectorTableAddr = Elf.GetBaseAddr();
+//
+//  if (VectorTableAddr != 0xFFFFFFFF) {
+//
+//    Util.Log("Resetting Program.");
+//
+//    SP = Target.ReadU32(VectorTableAddr);
+//    Target.SetReg("SP", SP);
+//
+//    PC = Target.ReadU32(VectorTableAddr + 4);
+//    Target.SetReg("PC", PC);
+//  }
+//}
+
+/*********************************************************************
+*
+*       BeforeTargetReset
+*
+* Function description
+*   Event handler routine. Optional.
+*
+**********************************************************************
+*/
+//void BeforeTargetReset (void) {
+//}
+
+/*********************************************************************
+*
+*       AfterTargetReset
+*
+* Function description
+*   Event handler routine.
+*    - Sets the PC register to program reset value.
+*    - Sets the SP register to program reset value on Cortex-M.
+*
+**********************************************************************
+*/
+void AfterTargetReset (void) {
+  unsigned int SP;
+  unsigned int PC;
+  unsigned int VectorTableAddr;
+
+  VectorTableAddr = Elf.GetBaseAddr();
+
+  if (VectorTableAddr == 0xFFFFFFFF) {
+    Util.Log("Project file error: failed to get program base");
+  } else {
+    SP = Target.ReadU32(VectorTableAddr);
+    Target.SetReg("SP", SP);
+
+    PC = Target.ReadU32(VectorTableAddr + 4);
+    Target.SetReg("PC", PC);
+  }
+}
+
+/*********************************************************************
+*
+*       DebugStart
+*
+* Function description
+*   Replaces the default debug session startup routine. Optional.
+*
+**********************************************************************
+*/
+//void DebugStart (void) {
+//}
+
+/*********************************************************************
+*
+*       TargetConnect
+*
+* Function description
+*   Replaces the default target IF connection routine. Optional.
+*
+**********************************************************************
+*/
+//void TargetConnect (void) {
+//}
+
+/*********************************************************************
+*
+*       BeforeTargetConnect
+*
+* Function description
+*   Event handler routine. Optional.
+*
+**********************************************************************
+*/
+void BeforeTargetConnect (void) {
+  //
+  // Trace pin init is done by J-Link script file as J-Link script files are IDE independent
+  //
+  Project.SetJLinkScript("./Nordic_nRF52840_TraceExample.pex");
+}
+
+/*********************************************************************
+*
+*       AfterTargetConnect
+*
+* Function description
+*   Event handler routine. Optional.
+*
+**********************************************************************
+*/
+//void AfterTargetConnect (void) {
+//}
+
+/*********************************************************************
+*
+*       TargetDownload
+*
+* Function description
+*   Replaces the default program download routine. Optional.
+*
+**********************************************************************
+*/
+//void TargetDownload (void) {
+//}
+
+/*********************************************************************
+*
+*       BeforeTargetDownload
+*
+* Function description
+*   Event handler routine. Optional.
+*
+**********************************************************************
+*/
+//void BeforeTargetDownload (void) {
+//}
+
+/*********************************************************************
+*
+*      AfterTargetDownload
+*
+* Function description
+*   Event handler routine.
+*    - Sets the PC register to program reset value.
+*    - Sets the SP register to program reset value on Cortex-M.
+*
+**********************************************************************
+*/
+void AfterTargetDownload (void) {
+  unsigned int SP;
+  unsigned int PC;
+  unsigned int VectorTableAddr;
+
+  VectorTableAddr = Elf.GetBaseAddr();
+
+  if (VectorTableAddr == 0xFFFFFFFF) {
+    Util.Log("Project file error: failed to get program base");
+  } else {
+    SP = Target.ReadU32(VectorTableAddr);
+    Target.SetReg("SP", SP);
+
+    PC = Target.ReadU32(VectorTableAddr + 4);
+    Target.SetReg("PC", PC);
+  }
+}
+
+/*********************************************************************
+*
+*       BeforeTargetDisconnect
+*
+* Function description
+*   Event handler routine. Optional.
+*
+**********************************************************************
+*/
+//void BeforeTargetDisconnect (void) {
+//}
+
+/*********************************************************************
+*
+*       AfterTargetDisconnect
+*
+* Function description
+*   Event handler routine. Optional.
+*
+**********************************************************************
+*/
+//void AfterTargetDisconnect (void) {
+//}
+
+/*********************************************************************
+*
+*       AfterTargetHalt
+*
+* Function description
+*   Event handler routine. Optional.
+*
+**********************************************************************
+*/
+//void AfterTargetHalt (void) {
+//}

hw/bsp/nrf/family.c

@@ -93,8 +93,33 @@ TU_ATTR_UNUSED static void power_event_handler(nrfx_power_usb_evt_t event)
   tusb_hal_nrf_power_event((uint32_t) event);
 }
 
+#ifdef TRACE_ETM
+void trace_etm_init(void) {
+  #ifdef NRF52840_XXAA
+  // Trace clk: P0.7, Trace D0..D3: P1.0, P0.11, P0.12, P1.09
+  // Setting drive strength to H0H1
+  uint32_t const pin_cnf = (GPIO_PIN_CNF_DRIVE_H0H1 << GPIO_PIN_CNF_DRIVE_Pos) |
+                           (GPIO_PIN_CNF_INPUT_Disconnect << GPIO_PIN_CNF_INPUT_Pos);
+  NRF_P0->PIN_CNF[ 7] = pin_cnf; // CLK
+  NRF_P1->PIN_CNF[ 0] = pin_cnf; // D0
+  NRF_P0->PIN_CNF[11] = pin_cnf; // D1
+  NRF_P0->PIN_CNF[12] = pin_cnf; // D2
+  NRF_P1->PIN_CNF[ 9] = pin_cnf; // D3
+
+  // trace clock = 16 Mhz, Trace mux = parallel
+  NRF_CLOCK->TRACECONFIG = (CLOCK_TRACECONFIG_TRACEPORTSPEED_32MHz << CLOCK_TRACECONFIG_TRACEPORTSPEED_Pos) |
+                           (CLOCK_TRACECONFIG_TRACEMUX_Parallel << CLOCK_TRACECONFIG_TRACEMUX_Pos);
+  #endif
+}
+#else
+
+#define trace_etm_init()
+#endif
+
 void board_init(void)
 {
+  trace_etm_init();
+
   // stop LF clock just in case we jump from application without reset
   NRF_CLOCK->TASKS_LFCLKSTOP = 1UL;
 

hw/bsp/stm32h7/family.c

@@ -77,7 +77,7 @@ void trace_etm_init(void) {
   DBGMCU->CR |= DBGMCU_CR_DBG_TRACECKEN | DBGMCU_CR_DBG_CKD1EN | DBGMCU_CR_DBG_CKD3EN;
 }
 #else
-  #define etm_trace_init()
+  #define trace_etm_init()
 #endif
 
 void board_init(void)