diff options
| author | Drew Barbier <dbarbi1@gmail.com> | 2017-07-25 16:58:47 -0500 |
|---|---|---|
| committer | Drew Barbier <dbarbi1@gmail.com> | 2017-07-25 16:58:47 -0500 |
| commit | 64115be98dda5eae8840e373c85b0c615f196dbb (patch) | |
| tree | e763daaad52014791d7ad624ced43703bb918707 /bsp/env/coreplexip-e31-arty | |
| parent | 261668c5dc1ba680a55acc0ebcab2ef63110b880 (diff) | |
added vectored interrupt example
Diffstat (limited to 'bsp/env/coreplexip-e31-arty')
| -rw-r--r-- | bsp/env/coreplexip-e31-arty/init.c | 13 | ||||
| -rw-r--r-- | bsp/env/coreplexip-e31-arty/platform.h | 5 |
2 files changed, 16 insertions, 2 deletions
diff --git a/bsp/env/coreplexip-e31-arty/init.c b/bsp/env/coreplexip-e31-arty/init.c index 84ae09e..888f04f 100644 --- a/bsp/env/coreplexip-e31-arty/init.c +++ b/bsp/env/coreplexip-e31-arty/init.c @@ -10,8 +10,14 @@ #define XSTR(x) #x #define STR(x) XSTR(x) +#ifndef VECT_IRQ + #define TRAP_ENTRY trap_entry +#else + #define TRAP_ENTRY vtrap_entry +#endif + extern int main(int argc, char** argv); -extern void trap_entry(); +extern void TRAP_ENTRY(); static unsigned long get_cpu_freq() { @@ -57,6 +63,7 @@ typedef void (*my_interrupt_function_ptr_t) (void); extern my_interrupt_function_ptr_t localISR[]; #endif +#ifndef VECT_IRQ uintptr_t handle_trap(uintptr_t mcause, uintptr_t epc) { if (0){ @@ -81,6 +88,7 @@ uintptr_t handle_trap(uintptr_t mcause, uintptr_t epc) } return epc; } +#endif void _init() { @@ -89,7 +97,8 @@ void _init() puts("core freq at " STR(CPU_FREQ) " Hz\n"); - write_csr(mtvec, &trap_entry); + write_csr(mtvec, ((unsigned long)&TRAP_ENTRY | MTVEC_VECTORED)); + #endif } diff --git a/bsp/env/coreplexip-e31-arty/platform.h b/bsp/env/coreplexip-e31-arty/platform.h index 42c8887..307a0c6 100644 --- a/bsp/env/coreplexip-e31-arty/platform.h +++ b/bsp/env/coreplexip-e31-arty/platform.h @@ -13,6 +13,11 @@ #define MCAUSE_CAUSE 0x7FFFFFFFFFFFFFFFUL #endif +#ifdef VECT_IRQ + #define MTVEC_VECTORED 0x01 +#else + #define MTVEC_VECTORED 0x00 +#endif #define IRQ_M_LOCAL 16 #define MIP_MLIP(x) (1 << (IRQ_M_LOCAL + x)) |