• State Not Answered
  • Locked Locked
  • Replies 4 replies
  • Subscribers 21 subscribers
  • Views 2296 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Disabling Interrupts in the ARM core

Rich Soennichsen

I have tried to globally disable interrupts using the assembly defines mentioned in the Keil note about nested interrupts.
http://www.keil.com/support/docs/2910.htm

When I try to call IENABLE or IDISABLE I get assembler errors associated with the MRS LR op-code.

Has anyone gotten this to work? Is there an alternative method to globally diasabling interrupts in the Keil environment?

Rich

Parents
  • 0 in reply to Rich Soennichsen

    In the LPX210x.H file that I have the SPI SPSR register is defined as follows:

    /* SPI (Serial Peripheral Interface) */
#define SPI_SPCR       (*((volatile unsigned char *) 0xE0020000))
#define SPI_SPSR       (*((volatile unsigned char *) 0xE0020004))
#define SPI_SPDR       (*((volatile unsigned char *) 0xE0020008))
#define SPI_SPCCR      (*((volatile unsigned char *) 0xE002000C))
#define SPI_SPTCR      (*((volatile unsigned char *) 0xE0020010))
#define SPI_SPTSR      (*((volatile unsigned char *) 0xE0020014))
#define SPI_SPTOR      (*((volatile unsigned char *) 0xE0020018))
#define SPI_SPINT      (*((volatile unsigned char *) 0xE002001C))

    Is yours defined differently than that?

    You can download this file from http://www.keil.com/dd/chip/3483.htm.

    Jon

Reply
  • 0 in reply to Rich Soennichsen

    In the LPX210x.H file that I have the SPI SPSR register is defined as follows:

    /* SPI (Serial Peripheral Interface) */
#define SPI_SPCR       (*((volatile unsigned char *) 0xE0020000))
#define SPI_SPSR       (*((volatile unsigned char *) 0xE0020004))
#define SPI_SPDR       (*((volatile unsigned char *) 0xE0020008))
#define SPI_SPCCR      (*((volatile unsigned char *) 0xE002000C))
#define SPI_SPTCR      (*((volatile unsigned char *) 0xE0020010))
#define SPI_SPTSR      (*((volatile unsigned char *) 0xE0020014))
#define SPI_SPTOR      (*((volatile unsigned char *) 0xE0020018))
#define SPI_SPINT      (*((volatile unsigned char *) 0xE002001C))

    Is yours defined differently than that?

    You can download this file from http://www.keil.com/dd/chip/3483.htm.

    Jon

Children