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ARM GCC compiles but bin file is very small and download but does not work

Richard L

I am using the sdk version 11 and arm-none-eabi-gcc version 5.4 on linux mint to compile the blinky test application. I have pointed the Makefile-posix at the location of the compiler gone into the folder for the pca10028 board and into the s130 folder. When i run make everything appears to compile and link with no errors and a bin and a hex file is produced. However the hex file produced is much smaller than the example hex file in the hex folder(which works fine). When i download this hex file it does not do anything at all. The elf file produced is around 340k while the bin file is about 1k and hex is about 3k. I have used keil to compile and got a working hex file but I need to get GCC working. I have not modified the make file so any ideas what might cause this kind of symptom. I have tried using a slightly old version 4.9 of the arm gcc as well but same results

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    Hi thanks for the answer , Initially i thought the size seemed reasonable however the example hex files for blinky with a softdevice on the chip appear to be more like 300k in size. The size looks more like the example hex files for blank with no soft device installed however i have been compiling from the s130 folder which I assume is for use when the chip has a soft device installed and links accordingly. I looked at the log file and while i rarely look at these things the functions appear to be there however the map file does seem to start with a section full of things at address 0x00000000 nrf51422_xxac_s130.map Sorry if I seem a little clueless here as this is my first foray into these chips , quite a steep learning curve

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    Hi thanks for the answer , Initially i thought the size seemed reasonable however the example hex files for blinky with a softdevice on the chip appear to be more like 300k in size. The size looks more like the example hex files for blank with no soft device installed however i have been compiling from the s130 folder which I assume is for use when the chip has a soft device installed and links accordingly. I looked at the log file and while i rarely look at these things the functions appear to be there however the map file does seem to start with a section full of things at address 0x00000000 nrf51422_xxac_s130.map Sorry if I seem a little clueless here as this is my first foray into these chips , quite a steep learning curve

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