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-rw-r--r--libcpu/ti-dsp/c28x/cpuport.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libcpu/ti-dsp/c28x/cpuport.c b/libcpu/ti-dsp/c28x/cpuport.c
index e34556c524..3f88606c65 100644
--- a/libcpu/ti-dsp/c28x/cpuport.c
+++ b/libcpu/ti-dsp/c28x/cpuport.c
@@ -78,7 +78,7 @@ rt_uint8_t *rt_hw_stack_init(void *tentry,
stack_frame->exception_stack_frame.acc = 0x33332222;
stack_frame->exception_stack_frame.ar1_ar0 = 0x00001111 & (unsigned long)parameter; /* ar0 : argument */
stack_frame->exception_stack_frame.p = 0x55554444; /* p */
- stack_frame->exception_stack_frame.dp_st1 = (0x00000000) | rt_hw_get_st1(); /* dp_st1 */
+ stack_frame->exception_stack_frame.dp_st1 = (0x00000000) | rt_hw_get_st1() & 0xFFFFFFFE; /* dp_st1 */
stack_frame->exception_stack_frame.dbgstat_ier = 0; /* dbgstat_ier */
stack_frame->exception_stack_frame.return_address = (unsigned long)tentry; /* return_address */
stack_frame->rpc = (unsigned long)texit;