Jackson Lv / nrf51-sdk

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Dependents:   nRF51822

Fork of nrf51-sdk by Nordic Semiconductor

README.md@6:ac5a8f5c2d96, 2016-04-07 (annotated)

Committer:
vcoubard
Date:
Thu Apr 07 17:37:21 2016 +0100
Revision:
6:ac5a8f5c2d96
Parent:
5:ce89fa3dfbaf
Child:
7:758c0c27bc56
Synchronized with git rev 61f8370f

Author: LIYOU ZHOU

Minor styling changes to readme

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vcoubard 4:7019f1d6317d 1 # nrf51-sdk
vcoubard 6:ac5a8f5c2d96 2 Module to contain files provided by the nordic nRF51 SDK. The latest version of this module uses files from Nordic SDK 8.1.0. The files are extracted from [here]. (https://developer.nordicsemi.com/nRF51_SDK/nRF51_SDK_v8.x.x/nRF51_SDK_8.1.0_b6ed55f.zip)
vcoubard 4:7019f1d6317d 3
vcoubard 4:7019f1d6317d 4 ## Changes made to Nordic files
vcoubard 4:7019f1d6317d 5 The files are kept the same as much as possible to the Nordic SDK. These minor modifications are made in order to integrate with mbed:
vcoubard 4:7019f1d6317d 6
vcoubard 4:7019f1d6317d 7 1. Add `#define asm __ASM` to the top of [nrf_delay.h](https://github.com/ARMmbed/nrf51-sdk/blob/master/source/nordic_sdk/components/drivers_nrf/hal/nrf_delay.h). Because all yotta mobules compile with -std=c99 which does not include "asm" keyword.
vcoubard 4:7019f1d6317d 8 1. Add `#define BLE_STACK_SUPPORT_REQD` to the top of [ble_stack_handler_types.h](https://github.com/ARMmbed/nrf51-sdk/blob/master/source/nordic_sdk/components/softdevice/common/softdevice_handler/ble_stack_handler_types.h).
vcoubard 4:7019f1d6317d 9 1. Add this patch to [nrf_svc.h](https://github.com/ARMmbed/nrf51-sdk/blob/master/source/nordic_sdk/components/softdevice/s130/headers/nrf_svc.h)
vcoubard 4:7019f1d6317d 10
vcoubard 4:7019f1d6317d 11 ```diff
vcoubard 4:7019f1d6317d 12 index 3e907ea..fcb05a1 100644
vcoubard 4:7019f1d6317d 13 --- a/source/nordic_sdk/components/softdevice/s130/headers/nrf_svc.h
vcoubard 4:7019f1d6317d 14 +++ b/source/nordic_sdk/components/softdevice/s130/headers/nrf_svc.h
vcoubard 4:7019f1d6317d 15 @@ -53,7 +53,7 @@
vcoubard 4:7019f1d6317d 16 { \
vcoubard 4:7019f1d6317d 17 __asm( \
vcoubard 4:7019f1d6317d 18 "svc %0\n" \
vcoubard 4:7019f1d6317d 19 - "bx r14" : : "I" (number) : "r0" \
vcoubard 4:7019f1d6317d 20 + "bx r14" : : "I" ((uint32_t) number) : "r0" \
vcoubard 4:7019f1d6317d 21 ); \
vcoubard 4:7019f1d6317d 22 } \
vcoubard 4:7019f1d6317d 23 _Pragma("GCC diagnostic pop")
vcoubard 4:7019f1d6317d 24 ```
vcoubard 4:7019f1d6317d 25
vcoubard 4:7019f1d6317d 26 ## Porting new versions of Nordic SDK
vcoubard 4:7019f1d6317d 27 A list of files currently requierd by mbed is maintained in [script/required_files.txt](https://github.com/ARMmbed/nrf51-sdk/blob/master/script/required_files.txt). [A python script](https://github.com/ARMmbed/nrf51-sdk/blob/master/script/pick_nrf51_files.py) is written to help porting from nordic sdk releases. **required_files.txt** is parsed to find a list of filenames. The script searches for these filenames in the sdk folder, and copy then into the yotta module mirroring the folder structure in the sdk. **extraIncludes** is automatically added to module.json to allow direct inclusion of noridc headers with just he filename.
vcoubard 4:7019f1d6317d 28
vcoubard 4:7019f1d6317d 29 ### Script usage
vcoubard 4:7019f1d6317d 30 ```
vcoubard 4:7019f1d6317d 31 python pick_nrf51_files.py <full-noridc-sdk-path> <nrf51-sdk-yotta-module-path>
vcoubard 4:7019f1d6317d 32 ```
vcoubard 4:7019f1d6317d 33
vcoubard 5:ce89fa3dfbaf 34 There are files in the sdk with the same filename but in different folder. This is dealt with by excluding certain directories. The excluded directories are listed in [pick_nrf51_files.py](https://github.com/ARMmbed/nrf51-sdk/blob/master/script/pick_nrf51_files.py).
vcoubard 5:ce89fa3dfbaf 35
vcoubard 5:ce89fa3dfbaf 36 After running the script, the changes in [the previous section](#changes-made-to-nordic-files) will have to be applied manually again.
vcoubard 5:ce89fa3dfbaf 37
vcoubard 5:ce89fa3dfbaf 38 Folder structure or even file name can change between releases of the nordic sdk, hence a degree of manual adjustment is needed when porting.
vcoubard 5:ce89fa3dfbaf 39
vcoubard 6:ac5a8f5c2d96 40 ## Using Noridc Headers
vcoubard 5:ce89fa3dfbaf 41 The nordic sdk is written in C and yotta modules support C++. If you are trying to include Nordic files in a cpp program, you need to use the `extern "C"` keyword around the includes.
vcoubard 5:ce89fa3dfbaf 42 ```c
vcoubard 5:ce89fa3dfbaf 43 extern "C" {
vcoubard 5:ce89fa3dfbaf 44 #include "softdevice_handler.h"
vcoubard 5:ce89fa3dfbaf 45 }
vcoubard 5:ce89fa3dfbaf 46 ```