info stack systick

Ubiquitous/XiZi_IIoT/arch/arm/cortex-m7/stm32h750/boot.S

@@ -41,164 +41,47 @@ Modification:
     .text
     .thumb
 
-/* Reset Handler */
+.word  _sidata
+.word  __data_start__
+.word  __data_end__
+.word  __bss_start__
+.word  __bss_end__
 
-    .thumb_func
+  .section  .text.Reset_Handler
-    .align 2
+  .weak  Reset_Handler
-    .globl   Reset_Handler
+  .type  Reset_Handler, %function
-    .weak    Reset_Handler
-    .type    Reset_Handler, %function
 Reset_Handler:
-#ifdef __BOOTLOADER /* BOOT */
+  ldr   sp, =__StackTop
-    cpsid   i               /* Mask interrupts */
+  movs  r1, #0
-    .equ    VTOR, 0xE000ED08
-    ldr     r0, =VTOR
-    ldr     r1, =__isr_vector
-    str     r1, [r0]
-    ldr     r2, [r1]
-    msr     msp, r2
 
-    ldr   r0,=SystemInit
+/* Copy the data segment initializers from flash to SRAM */
-    blx   r0
+DataInit:
+  ldr  r0, =__data_start__
+  ldr  r3, =__data_end__
+  adds r2, r0, r1
+  cmp  r2, r3
+  bcs  DataInitEnd
+  ldr  r3, =_sidata
+  ldr  r3, [r3, r1]
+  str  r3, [r0, r1]
+  adds r1, r1, #4
+  b  DataInit
 
-/*     Loop to copy data from read only memory to RAM. The ranges
+DataInitEnd:
- *      of copy from/to are specified by following symbols evaluated in
+  ldr  r2, =__bss_start__
- *      linker script.
- *      __bootloader_end: End of code section, i.e., begin of data sections to copy from.
- *      __data_start__/__data_end__: RAM address range that data should be
- *      __noncachedata_start__/__noncachedata_end__ : none cachable region
- *      copied to. Both must be aligned to 4 bytes boundary.  */
 
-    ldr    r1, =__etext
+/* Zero fill the bss segment. */
-    ldr    r2, =__data_start__
+BSSInit:
-    ldr    r3, =__data_end__
+  ldr  r3, = __bss_end__
+  cmp  r2, r3
+  bcs  BSSInitEnd
+  movs r3, #0
+  str  r3, [r2], #4
+  b  BSSInit
 
-    /* Here are two copies of loop implemenations. First one favors code size
+BSSInitEnd:
-    * and the second one favors performance. Default uses the first one.
+  bl  SystemInit
-    * Change to "#if 0" to use the second one */
-.LoopCopy0:
-    cmp     r2, r3
-    ittt    lt
-    ldrlt   r0, [r1], #4
-    strlt   r0, [r2], #4
-    blt    .LoopCopy0
 
-    /*     This part of work usually is done in C library startup code. Otherwise,
+  bl  entry
-    *     define this macro to enable it in this startup.
+  bx  lr
-    *
+.size  Reset_Handler, .-Reset_Handler
-    *     Loop to zero out BSS section, which uses following symbols
-    *     in linker script:
-    *      __bss_start__: start of BSS section. Must align to 4
-    *      __bss_end__: end of BSS section. Must align to 4
-    */
-    ldr r1, =__bss_start__
-    ldr r2, =__bss_end__
-
-    movs    r0, 0
-.LoopCopy1:
-    cmp     r1, r2
-    itt    lt
-    strlt   r0, [r1], #4
-    blt    .LoopCopy1
-
-    ldr   r0,=ota_entry
-    blx   r0
-#else /* APP */
-    cpsid   i               /* Mask interrupts */
-    .equ    VTOR, 0xE000ED08
-    ldr     r0, =VTOR
-    ldr     r1, =__isr_vector
-    str     r1, [r0]
-    ldr     r2, [r1]
-    msr     msp, r2
-#ifndef __NO_SYSTEM_INIT
-    ldr   r0,=SystemInit
-    blx   r0
-#endif
-/*     Loop to copy data from read only memory to RAM. The ranges
- *      of copy from/to are specified by following symbols evaluated in
- *      linker script.
- *      __etext: End of code section, i.e., begin of data sections to copy from.
- *      __data_start__/__data_end__: RAM address range that data should be
- *      __noncachedata_start__/__noncachedata_end__ : none cachable region
- *      copied to. Both must be aligned to 4 bytes boundary.  */
-
-    ldr    r1, =__etext
-    ldr    r2, =__data_start__
-    ldr    r3, =__data_end__
-
-#if 1
-/* Here are two copies of loop implemenations. First one favors code size
- * and the second one favors performance. Default uses the first one.
- * Change to "#if 0" to use the second one */
-.LC0:
-    cmp     r2, r3
-    ittt    lt
-    ldrlt   r0, [r1], #4
-    strlt   r0, [r2], #4
-    blt    .LC0
-#else
-    subs    r3, r2
-    ble    .LC1
-.LC0:
-    subs    r3, #4
-    ldr    r0, [r1, r3]
-    str    r0, [r2, r3]
-    bgt    .LC0
-.LC1:
-#endif
-#ifdef __STARTUP_INITIALIZE_NONCACHEDATA
-    ldr    r2, =__noncachedata_start__
-    ldr    r3, =__noncachedata_init_end__
-#if 1
-.LC2:
-    cmp     r2, r3
-    ittt    lt
-    ldrlt   r0, [r1], #4
-    strlt   r0, [r2], #4
-    blt    .LC2
-#else
-    subs    r3, r2
-    ble    .LC3
-.LC2:
-    subs    r3, #4
-    ldr    r0, [r1, r3]
-    str    r0, [r2, r3]
-    bgt    .LC2
-.LC3:
-#endif
-/* zero inited ncache section initialization */
-    ldr r3, =__noncachedata_end__
-    movs    r0,0
-.LC4:
-    cmp    r2,r3
-    itt    lt
-    strlt   r0,[r2],#4
-    blt    .LC4
-#endif /* __STARTUP_INITIALIZE_NONCACHEDATA */
-
-#if 1
-/*     This part of work usually is done in C library startup code. Otherwise,
- *     define this macro to enable it in this startup.
- *
- *     Loop to zero out BSS section, which uses following symbols
- *     in linker script:
- *      __bss_start__: start of BSS section. Must align to 4
- *      __bss_end__: end of BSS section. Must align to 4
- */
-    ldr r1, =__bss_start__
-    ldr r2, =__bss_end__
-
-    movs    r0, 0
-.LC5:
-    cmp     r1, r2
-    itt    lt
-    strlt   r0, [r1], #4
-    blt    .LC5
-#endif /* __STARTUP_CLEAR_BSS */
-
-    ldr   r0,=entry
-    blx   r0
-#endif /* MCUBOOT_BOOTLOADER */
-
-.size Reset_Handler, . - Reset_Handler

Ubiquitous/XiZi_IIoT/board/stm32h750/board.c

@@ -33,11 +33,11 @@
 
 void InitBoardHardware()
 {
-
+  sys_cache_enable();
     HAL_Init();
     sys_stm32_clock_init(192, 5, 2, 4);
  
-    delay_init(480); 
+    //delay_init(480); 
   InitHwUart();
 
 	InitBoardMemory((void*)HEAP_START, (void*)HEAP_END);

Ubiquitous/XiZi_IIoT/board/stm32h750/board.h

@@ -24,11 +24,10 @@
 
 
 void InitBoardHardware();
-extern void *__bss_end__;
-extern void *_heap_end;
 
-#define HEAP_START  ((void *)&__bss_end__)
+
-#define HEAP_END    ((void *)&_heap_end)
+#define HEAP_START  0x24030000
+#define HEAP_END    0x24060000
 
 
 

Ubiquitous/XiZi_IIoT/board/stm32h750/link.lds

@@ -11,7 +11,7 @@ MEMORY
 OUTPUT_ARCH(arm)
 
 ENTRY(Reset_Handler)
-_system_stack_size = 0x200;
+_system_stack_size = 0x10000;
 
 SECTIONS
 {
@@ -42,9 +42,6 @@ SECTIONS
         __isrtbl_end = .;
         . = ALIGN(4);
 
-        PROVIDE(g_service_table_start = ABSOLUTE(.));
-        KEEP(*(.g_service_table))
-        PROVIDE(g_service_table_end = ABSOLUTE(.));
 
         PROVIDE(_etext =  ABSOLUTE(.));
 
@@ -78,11 +75,12 @@ SECTIONS
         __data_end__ = . ;
     } >sram
 
-    __bss_start__ = .;
+    
     .bss :
     {
         . = ALIGN(4);
         /* This is used by the startup in order to initialize the .bss secion */
+        __bss_start__ = .;
         _sbss = .;
 
         *(.bss)
@@ -92,16 +90,16 @@ SECTIONS
         . = ALIGN(4);
         /* This is used by the startup in order to initialize the .bss secion */
         _ebss = . ;
+        __bss_end__ = .;
+    } > sram
+    .stack : 
+    {
+        . = ALIGN(8);
+        /* cpu stack */
+        . = . + _system_stack_size;
+        __StackTop = .;
     } > sram
-    __bss_end__ = .;
 
     _end = .;
 
-   .stack ORIGIN(sram) + LENGTH(sram) - _system_stack_size :
-    {
-    PROVIDE( _heap_end = . );
-    . = _system_stack_size;
-    PROVIDE( __StackTop = . );
-    } >sram 
-
 }

Ubiquitous/XiZi_IIoT/board/stm32h750/third_party_driver/Makefile

@@ -1,7 +1,7 @@
 SRC_DIR := libraries 
 
 ifeq ($(CONFIG_BSP_USING_UART),y)
-  SRC_DIR += usart sys delay 
+  SRC_DIR += usart sys 
 endif
 
 include $(KERNEL_ROOT)/compiler.mk

Ubiquitous/XiZi_IIoT/board/stm32h750/third_party_driver/sys/sys.c

@@ -31,7 +31,12 @@ RCC_PeriphCLKInitTypeDef rcc_periph_clk_init_struct = {0};
 
 
 
-
+void sys_cache_enable(void)
+{
+    SCB_EnableICache();                 /* ʹÄÜI-Cache */
+    SCB_EnableDCache();                 /* ʹÄÜD-Cache */
+    SCB->CACR |= SCB_CACR_FORCEWT_Msk;  /* ʹÄÜD-CacheÇ¿ÖÆ͸д */
+}
 
 
 /**

Ubiquitous/XiZi_IIoT/board/stm32h750/third_party_driver/usart/connect_uart.c

@@ -22,6 +22,7 @@
 #include <connect_uart.h>
 #include <usart.h>
 #include <stm32h7xx_hal_cortex.h>
+#include <stm32h7xx_hal_uart.h>
 static struct SerialBus serial_bus_1;
 static struct SerialDriver serial_driver_1;
 static struct SerialHardwareDevice serial_device_1;
@@ -75,31 +76,19 @@ static void UartHandler(struct SerialBus *serial_bus, struct SerialDriver *seria
     {
         SerialSetIsr(serial_dev, SERIAL_EVENT_RX_IND);
     }
-    else
+    HAL_UART_IRQHandler(&(serial_hw_cfg->uart_handle));
-    {
-        if (__HAL_UART_GET_FLAG(&(serial_hw_cfg->uart_handle), UART_FLAG_ORE) != RESET)
-        {
-            __HAL_UART_CLEAR_OREFLAG(&serial_hw_cfg->uart_handle);
-        }
-        if (__HAL_UART_GET_FLAG(&(serial_hw_cfg->uart_handle), UART_FLAG_NE) != RESET)
-        {
-            __HAL_UART_CLEAR_NEFLAG(&serial_hw_cfg->uart_handle);
-        }
-        if (__HAL_UART_GET_FLAG(&(serial_hw_cfg->uart_handle), UART_FLAG_FE) != RESET)
-        {
-            __HAL_UART_CLEAR_FEFLAG(&serial_hw_cfg->uart_handle);
-        }
-        if (__HAL_UART_GET_FLAG(&(serial_hw_cfg->uart_handle), UART_FLAG_PE) != RESET)
-        {
-            __HAL_UART_CLEAR_PEFLAG(&serial_hw_cfg->uart_handle);
-        }
-    }
 }
 
 void UartIsr1(int vector, void *param)
 {
 	/* get serial bus 1 */
-	UartHandler(&serial_bus_1, &serial_driver_1);
+    x_base lock = 0;
+    lock = DISABLE_INTERRUPT();
+
+    UartHandler(&serial_bus_1, &serial_driver_1);
+
+    ENABLE_INTERRUPT(lock);
+	
 
 }
 DECLARE_HW_IRQ(USART1_IRQn, UartIsr1, NONE);
@@ -240,11 +229,12 @@ static int SerialPutChar(struct SerialHardwareDevice *serial_dev, char c)
 {
     struct SerialCfgParam *serial_cfg = (struct SerialCfgParam *)serial_dev->private_data;
     struct Stm32UartHwCfg *serial_hw_cfg = (struct Stm32UartHwCfg *)serial_cfg->hw_cfg.private_data;
+    /* Polling mode. */
+    HAL_UART_Transmit(&(serial_hw_cfg->uart_handle), (uint8_t *)&c, 1, 100);
+    // UART_INSTANCE_CLEAR_FUNCTION(&(serial_hw_cfg->uart_handle), UART_FLAG_TC);
 
-    UART_INSTANCE_CLEAR_FUNCTION(&(serial_hw_cfg->uart_handle), UART_FLAG_TC);
+    // serial_hw_cfg->uart_handle.Instance->TDR = c;
-
+    // while (__HAL_UART_GET_FLAG(&(serial_hw_cfg->uart_handle), UART_FLAG_TC) == RESET);
-    serial_hw_cfg->uart_handle.Instance->RDR = c;
-    while (__HAL_UART_GET_FLAG(&(serial_hw_cfg->uart_handle), UART_FLAG_TC) == RESET);
 
     return EOK;
 }