- update nrfx to v3.4.0

- compile nrf with __STARTUP_CLEAR_BSS and link flag -nostartfiles

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

@@ -1,5 +1,4 @@
 set(MCU_VARIANT nrf52840)
-set(LD_FILE_GNU ${NRFX_DIR}/mdk/nrf52840_xxaa.ld)
 
 function(update_board TARGET)
 endfunction()

hw/bsp/nrf/family.c

@@ -33,6 +33,7 @@
 #pragma GCC diagnostic ignored "-Wcast-qual"
 #pragma GCC diagnostic ignored "-Wcast-align"
 #pragma GCC diagnostic ignored "-Wunused-parameter"
+#pragma GCC diagnostic ignored "-Wunused-variable"
 #pragma GCC diagnostic ignored "-Wundef"
 #pragma GCC diagnostic ignored "-Wredundant-decls"
 #endif
@@ -54,6 +55,14 @@
 #endif
 
 
+// There is API changes between nrfx v2 and v3
+#if 85301 >= (10000*MDK_MAJOR_VERSION + 100*MDK_MINOR_VERSION + MDK_MICRO_VERSION)
+  // note MDK 8.53.1 is also used by nrfx v3.0.0, just skip this version and use later 3.x
+  #define NRFX_VER 2
+#else
+  #define NRFX_VER 3
+#endif
+
 //--------------------------------------------------------------------+
 // Forward USB interrupt events to TinyUSB IRQ Handler
 //--------------------------------------------------------------------+
@@ -100,11 +109,19 @@ static void max3421_init(void);
 static nrfx_spim_t _spi = NRFX_SPIM_INSTANCE(1);
 #endif
 
-
 //--------------------------------------------------------------------+
 //
 //--------------------------------------------------------------------+
 
+// Implement _start() since we use linker flag '-nostartfiles'.
+// Requires defined __STARTUP_CLEAR_BSS,
+extern int main(void);
+TU_ATTR_UNUSED void _start(void) {
+  // called by startup code
+  main();
+  while (1) {}
+}
+
 void board_init(void) {
   // stop LF clock just in case we jump from application without reset
   NRF_CLOCK->TASKS_LFCLKSTOP = 1UL;
@@ -124,6 +141,7 @@ void board_init(void) {
   SysTick_Config(SystemCoreClock / 1000);
 
   // UART
+  #if NRFX_VER == 2
   nrfx_uarte_config_t uart_cfg = {
       .pseltxd   = UART_TX_PIN,
       .pselrxd   = UART_RX_PIN,
@@ -137,6 +155,21 @@ void board_init(void) {
           .parity    = NRF_UARTE_PARITY_EXCLUDED,
       }
   };
+  #elif NRFX_VER == 3
+  nrfx_uarte_config_t uart_cfg = {
+      .txd_pin   = UART_TX_PIN,
+      .rxd_pin   = UART_RX_PIN,
+      .rts_pin   = NRF_UARTE_PSEL_DISCONNECTED,
+      .cts_pin   = NRF_UARTE_PSEL_DISCONNECTED,
+      .p_context = NULL,
+      .baudrate  = NRF_UARTE_BAUDRATE_115200, // CFG_BOARD_UART_BAUDRATE
+      .interrupt_priority = 7,
+      .config = {
+          .hwfc      = NRF_UARTE_HWFC_DISABLED,
+          .parity    = NRF_UARTE_PARITY_EXCLUDED,
+      }
+  };
+  #endif
 
   nrfx_uarte_init(&_uart_id, &uart_cfg, NULL); //uart_handler);
 
@@ -224,11 +257,17 @@ int board_uart_read(uint8_t* buf, int len) {
   (void) buf;
   (void) len;
   return 0;
-//  return NRFX_SUCCESS == nrfx_uart_rx(&_uart_id, buf, (size_t) len) ? len : 0;
+//  nrfx_err_t err = nrfx_uarte_rx(&_uart_id, buf, (size_t) len);
+//  return NRFX_SUCCESS == err ? len : 0;
 }
 
 int board_uart_write(void const* buf, int len) {
-  return (NRFX_SUCCESS == nrfx_uarte_tx(&_uart_id, (uint8_t const*) buf, (size_t) len)) ? len : 0;
+  nrfx_err_t err = nrfx_uarte_tx(&_uart_id, (uint8_t const*) buf, (size_t) len
+                                 #if NRFX_VER == 3
+                                 ,0
+                                 #endif
+                                );
+  return (NRFX_SUCCESS == err) ? len : 0;
 }
 
 #if CFG_TUSB_OS == OPT_OS_NONE
@@ -241,7 +280,6 @@ void SysTick_Handler(void) {
 uint32_t board_millis(void) {
   return system_ticks;
 }
-
 #endif
 
 #ifdef SOFTDEVICE_PRESENT

hw/bsp/nrf/family.cmake

@@ -31,14 +31,13 @@ set(FAMILY_MCUS NRF5X CACHE INTERNAL "")
 function(add_board_target BOARD_TARGET)
   if (NOT TARGET ${BOARD_TARGET})
     if (NOT DEFINED LD_FILE_${CMAKE_C_COMPILER_ID})
-      set(LD_FILE_GNU ${NRFX_DIR}/mdk/${MCU_VARIANT}_xxaa.ld)
+      set(LD_FILE_GNU ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/linker/${MCU_VARIANT}_xxaa.ld)
-      set(LD_FILE_Clang ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/linker/clang/${MCU_VARIANT}_xxaa.ld)
+      set(LD_FILE_Clang ${LD_FILE_GNU})
     endif ()
 
     if (NOT DEFINED STARTUP_FILE_${CMAKE_C_COMPILER_ID})
       set(STARTUP_FILE_GNU ${NRFX_DIR}/mdk/gcc_startup_${MCU_VARIANT}.S)
       set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
-      #set(STARTUP_FILE_Clang ${NRFX_DIR}/mdk/arm_startup_${MCU_VARIANT}.s)
     endif ()
 
     add_library(${BOARD_TARGET} STATIC
@@ -48,9 +47,13 @@ function(add_board_target BOARD_TARGET)
       ${NRFX_DIR}/drivers/src/nrfx_spim.c
       ${NRFX_DIR}/drivers/src/nrfx_uarte.c
       ${NRFX_DIR}/mdk/system_${MCU_VARIANT}.c
+      ${NRFX_DIR}/soc/nrfx_atomic.c
       ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
       )
-    target_compile_definitions(${BOARD_TARGET} PUBLIC CONFIG_GPIO_AS_PINRESET)
+    target_compile_definitions(${BOARD_TARGET} PUBLIC
+      __STARTUP_CLEAR_BSS
+      CONFIG_GPIO_AS_PINRESET
+      )
 
     if (MCU_VARIANT STREQUAL "nrf52840")
       target_compile_definitions(${BOARD_TARGET} PUBLIC NRF52840_XXAA)
@@ -82,12 +85,12 @@ function(add_board_target BOARD_TARGET)
         "LINKER:--script=${LD_FILE_GNU}"
         -L${NRFX_DIR}/mdk
         --specs=nosys.specs --specs=nano.specs
+        -nostartfiles
         )
     elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
       target_link_options(${BOARD_TARGET} PUBLIC
         "LINKER:--script=${LD_FILE_Clang}"
         -L${NRFX_DIR}/mdk
-        -lcrt0
         )
     elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
       target_link_options(${BOARD_TARGET} PUBLIC

hw/bsp/nrf/linker/nrf52840_xxaa.ld

@@ -0,0 +1,26 @@
+/* Linker script to configure memory regions. */
+
+SEARCH_DIR(.)
+
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x100000
+  EXTFLASH (rx) : ORIGIN = 0x12000000, LENGTH = 0x8000000
+  RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x40000
+  CODE_RAM (rwx) : ORIGIN = 0x800000, LENGTH = 0x40000
+}
+
+
+INCLUDE "nrf_common.ld"
+
+/* nrfx v2 linker does not define __tbss_start/end__ __sbss_start/end__*/
+/*__tbss_start__ = __tbss_start;*/
+/*__tbss_end__ = __tbss_end;*/
+/*__sbss_start__ = __sbss_start;*/
+/*__sbss_end__ = __sbss_end;*/
+
+/* picolibc crt0 */
+/*__data_source = __copy_table_start__;*/
+/*__tls_base = __tdata_start;*/
+/*PROVIDE( __tls_align = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)) );*/
+/*PROVIDE( __arm32_tls_tcb_offset = MAX(8, __tls_align) );*/

src/portable/nordic/nrf5x/dcd_nrf5x.c

@@ -58,7 +58,8 @@
 
 /* Try to detect nrfx version if not configured with CFG_TUD_NRF_NRFX_VERSION
  * nrfx v1 and v2 are concurrently developed. There is no NRFX_VERSION only MDK VERSION which is as follows:
- * - v2.6.0: 8.44.1, v2.5.0: 8.40.2, v2.4.0: 8.37.0, v2.3.0: 8.35.0, v2.2.0: 8.32.1, v2.1.0: 8.30.2, v2.0.0: 8.29.0
+ * - v3.0.0: 8.53.1 (conflict with v2.11.0), v3.1.0: 8.55.0 ...
+ * - v2.11.0: 8.53.1, v2.6.0: 8.44.1, v2.5.0: 8.40.2, v2.4.0: 8.37.0, v2.3.0: 8.35.0, v2.2.0: 8.32.1, v2.1.0: 8.30.2, v2.0.0: 8.29.0
  * - v1.9.0: 8.40.3, v1.8.6: 8.35.0 (conflict with v2.3.0), v1.8.5: 8.32.3, v1.8.4: 8.32.1 (conflict with v2.2.0),
  *   v1.8.2: 8.32.1 (conflict with v2.2.0), v1.8.1: 8.27.1
  * Therefore the check for v1 would be:

tools/get_deps.py

@@ -42,7 +42,7 @@ deps_optional = {
                                   '0b79559eb411149d36e073c1635c620e576308d4',
                                   'mm32'],
     'hw/mcu/nordic/nrfx': ['https://github.com/NordicSemiconductor/nrfx.git',
-                           '2527e3c8449cfd38aee41598e8af8492f410ed15',
+                           '7c47cc0a56ce44658e6da2458e86cd8783ccc4a2',
                            'nrf'],
     'hw/mcu/nuvoton': ['https://github.com/majbthrd/nuc_driver.git',
                        '2204191ec76283371419fbcec207da02e1bc22fa',