SPI Example Symbol cannot be resolved

RE: SPI Example Symbol cannot be resolved

Jørgen Holmefjord — Tue, 31 Oct 2017 08:05:04 GMT

Hi,

SPI0_TWI0_IRQn specify the Interrupt number for serial instance 0 (0x40003000). This is related to Cortex M processor architecture, and is similar in nRF51 and nRF52 series. The file nrf51_to_nrf52.h is included by nrf.h, if the symbol NRF52832_XXAA is defined. This symbol is defined if too-generic symbol NRF52 is defined.

In the Makefile provided with the SDK, the symbol NRF52 is defined, and the path to the header files is included:

INC_FOLDERS += \
  $(SDK_ROOT)/components/device \
.
.
CFLAGS += -DNRF52

If Eclipse does not include this file automatically, there is either something wrong with the parsing of the Makefile, or you har skipped some step in the tutorial.

Best regards,

Jørgen

RE: SPI Example Symbol cannot be resolved

xhr0428 — Mon, 30 Oct 2017 15:05:28 GMT

I add include "nrf51_to_nrf52.h", it compiles in eclipse now. Is SPI0_TWI0_IRQn a syntax from NRF51? What is it for? BTW, it's exactly the situation I mentioned in my post, there is no way I would know I need to include this header file unless I ask a question here.

RE: SPI Example Symbol cannot be resolved

Jørgen Holmefjord — Mon, 30 Oct 2017 13:15:47 GMT

SPI0_TWI0_IRQn is defined in nrf51.h, nrf51_to_nrf52.h or nrf51_to_nrf52840.h, located in components\device.

RE: SPI Example Symbol cannot be resolved

xhr0428 — Mon, 30 Oct 2017 12:54:21 GMT

I followed this tutorial devzone.nordicsemi.com/.../ I have created more than 10 projects using the same way, I don’t think there is anything wrong in the setup. Could you also try with eclipse? Where is SPI0_TWI0_IRQn defined?

RE: SPI Example Symbol cannot be resolved

Jørgen Holmefjord — Mon, 30 Oct 2017 08:11:34 GMT

How did you setup the proejct in Eclipse? If it works when using make directly, there must be something wrong with your Eclipse project setup. Note that Eclipse is not officially supported by our SDK.

RE: SPI Example Symbol cannot be resolved

xhr0428 — Mon, 30 Oct 2017 04:51:47 GMT

I have tried redownloading the SDK on 2 computers. It's still the same. It compiles if I directly use command make in terminal. But in Eclipse it shows unresolved error.

RE: SPI Example Symbol cannot be resolved

xhr0428 — Fri, 27 Oct 2017 14:09:18 GMT

I didn't change anything in the example. The SDK was freshly downloaded 2 weeks ago on a new computer.

RE: SPI Example Symbol cannot be resolved

Jørgen Holmefjord — Fri, 27 Oct 2017 07:24:50 GMT

Have you modified anything in the example? I'm not able to reproduce this issue with the unmodified SPI example. All SDK examples should compile without modifications. If you are seeing "could not be resolved" errors, you should try to redownload and unzip a fresh copy of the SDK. When adding new drivers/libraries to existing examples, you might see such errors. You then need to include the correct source file, or enable the module in sdk_config.h.