spi_master causing Hard_fault()

[nsnyder]

So I'm using the spi_master.c from SDK 6.1 to communicate with an LCD driver. I'm using an nrf51822 with s110 softdevice. My system has been sporadically hardfaulting on me. I've traced the hard_fault to the spi_master.c driver. Specifically the function spi_master_send_recv(). The fault occurs when the function tries to execute this line

//Disable interrupt SPI.

APP_ERROR_CHECK(sd_nvic_DisableIRQ(p_spi_instance->irq_type));

below I've attached a screen shot of the register values while inside the HardFault_Handler().

I'm not certain if this is relevent however they could be linked so I figured I should mention it.I just tried to erase and reprogram the softdevice using nrfgoStudio and now I am having a fault generated by the following line in softdevice_handler.c

    // Initialize SoftDevice.
err_code = sd_softdevice_enable(clock_source, softdevice_assertion_handler);

The fault is triggered via a call to the app_error_handler() function which only contains a call to NVIC_SystemReset(). Below are the register values while inside app_error_handler()

I'm not sure how to overcome these issues and would really appreciate any suggestions on overcoming them.

[nsnyder]

So i had switched computers and as it turns out the compiler control string was a little be different in Keil on the new computer I was using.

[nsnyder]

Yes it did indeed work on the other computer. The file Keil_v5 on the one computer contained newer supporting software than the Keil_v5 file on the other computer. The functioning computer contained an older version of the MDK and other supporting software.