gonzui

mtkernel_3

kernel/sysdepend/cpu/core/armv7m/sys_timer.h - 3.2KB - 108 lines

57: {
58:         (void)in_w(SYST_CSR);                  /* Clear COUNTFLAG */
59:         out_w(SCB_ICSR, ICSR_PENDSTCLR);
91:         DI(imsk);
92:         max = in_w(SYST_RVR);                  /* Setting count */
93:         unf = in_w(SYST_CSR) & 0x10000;                /* COUNTFLAG */
94:         ofs = in_w(SYST_CVR) & 0x00ffffff;     /* Current Remained count */
95:         if ( unf == 0 ) {              /* Reload not occurred */
96:                 unf = in_w(SYST_CSR) & 0x10000;       /* Check COUNTFLAG again */
97:                 if (unf != 0) {               /* Reload occurred */
98:                         ofs = in_w(SYST_CVR) & 0x00ffffff;
99:                 }