dfu\secure_bootloader\pca10040_s132_ble does not fit in FLASH SDK 17.10 Segger Embedded Studio v5.42a

Question

I compiling the example as it is, I have just added the micro-ecc library and updated the dfu_public_key, but I get this error 
 
 1> C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 5.42a/gcc/arm-none-eabi/bin/ld: error: section .tdata overlaps absolute placed section .mbr_params_page
1> C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 5.42a/gcc/arm-none-eabi/bin/ld: section .mbr_params_page VMA [000000000007e000,000000000007efff] overlaps section .rodata VMA [000000000007de98,000000000007e393]

SEGGER Embedded Studio for ARM 5.42a is the version recommended in the SDK release note, I have tried more recent versions but I get the same error

Vidar Berg · Accepted Answer

I see you have made some modifications to the BLE transport (nrf_dfu_ble.c), which increases the flash footprint of the bootloader.

--- /Rocco_nrF5_SDK/components/libraries/bootloader/ble_dfu/nrf_dfu_ble.c
+++ /nRF5_SDK_17.0.2_d674dde/components/libraries/bootloader/ble_dfu/nrf_dfu_ble.c
@@ -40,7 +40,6 @@
 #include "nrf_dfu_ble.h"
 
 #include <stddef.h>
-#include <stdlib.h>
 #include "sdk_common.h"
 #include "nrf_dfu_transport.h"
 #include "nrf_dfu_types.h"
@@ -914,46 +913,6 @@
 }
 #endif
 
-/**@brief get the serial number from the flash.
- *
- * @details serial number is added to the advertising packet 
- * 
- */
-
- char* my_itoa(int i, char b[]){
-    char const digit[] = "0123456789";
-    char* p = b;
-    if(i<0){
-        *p++ = '-';
-        i *= -1;
-    }
-    int shifter = i;
-    do{ //Move to where representation ends
-        ++p;
-        shifter = shifter/10;
-    }while(shifter);
-    *p = '\0';
-    do{ //Move back, inserting digits as u go
-        *--p = digit[i%10];
-        i = i/10;
-    }while(i);
-    return b;
-}
-char bn_name[] = "DFU_CC24800000";
-
-void array_of_char(int number, char *numberArray)
-{
-   int count = 0;    
-   int n = number;
-
-   while (n != 0){
-       numberArray[count] = n % 10 + '0';
-       n /= 10;
-       count++;
-   }
-    numberArray[count] = '\0';
-}
-
 
 /**@brief     Function for initializing GAP.
  *
@@ -964,7 +923,7 @@
 {
     uint32_t                err_code;
     ble_gap_conn_sec_mode_t sec_mode;
-    uint8_t const *       device_name;
+    uint8_t const *         device_name;
     uint32_t                name_len;
 
     BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
@@ -973,29 +932,6 @@
 
     err_code = gap_address_change();
     VERIFY_SUCCESS(err_code);
-
-    
-
-       uint32_t serial;
-       char name_buffer[4];
-        int no_chars=0, indx;
-      memcpy(&serial, (uint32_t*)0x10001080, 4);
-
-
-    serial &= 0xFFFF;
-    //serial = 0xb;
-   
-    
-    //array_of_char(serial, name_buffer);
-    
-    no_chars = sprintf(name_buffer, "%d", serial);
-    //my_itoa(serial, name_buffer);
-     indx = no_chars-1;
-     strcpy(&bn_name[14-indx-1], name_buffer);
-
-
-     
-    NRF_LOG_DEBUG("ROCCO name: %s",bn_name);
 
     if ((m_flags & DFU_BLE_FLAG_USE_ADV_NAME) != 0)
     {
@@ -1007,13 +943,11 @@
 #endif
     {
         NRF_LOG_DEBUG("Using default advertising name");
-        //device_name = (uint8_t const *)(NRF_DFU_BLE_ADV_NAME);
-        //name_len    = strlen(NRF_DFU_BLE_ADV_NAME);
-        device_name = (uint8_t const *)(bn_name);
-        name_len    = strlen(bn_name);
-    }
-
-    err_code = sd_ble_gap_device_name_set(&sec_mode, device_name, name_len); 
+        device_name = (uint8_t const *)(NRF_DFU_BLE_ADV_NAME);
+        name_len    = strlen(NRF_DFU_BLE_ADV_NAME);
+    }
+
+    err_code = sd_ble_gap_device_name_set(&sec_mode, device_name, name_len);
     VERIFY_SUCCESS(err_code);
 
     err_code = sd_ble_gap_ppcp_set(&m_gap_conn_params);

To fix this, you can either revert the change, or lower the Bootloader start address by 0x1000 to increase the size of the bootloader section in flash.

dfu\secure_bootloader\pca10040_s132_ble does not fit in FLASH SDK 17.10 Segger Embedded Studio v5.42a

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