diff options
Diffstat (limited to 'software/double_tap_dontboot')
| -rw-r--r-- | software/double_tap_dontboot/double_tap_dontboot.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/software/double_tap_dontboot/double_tap_dontboot.c b/software/double_tap_dontboot/double_tap_dontboot.c index 0cae5b5..53c2c64 100644 --- a/software/double_tap_dontboot/double_tap_dontboot.c +++ b/software/double_tap_dontboot/double_tap_dontboot.c @@ -42,6 +42,11 @@ #include "platform.h" #include "encoding.h" +#ifndef _SIFIVE_HIFIVE1_H +#error "double_tap_dontboot is designed to run on HiFive1 and/or E300 Arty Dev Kit." +#endif + + #define BACKUP15_MAGIC 0xD027B007 #define FINAL_ADDRESS 0x20400000 @@ -97,9 +102,9 @@ int main(void) // because it makes it clear that the processor is actually // running this code, not just the PWM hardware. - now = *((volatile uint64_t*) (CLINT_BASE_ADDR + CLINT_MTIME)); + now = *((volatile uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIME)); then = now + 32768/500; - while (*((volatile uint64_t*) (CLINT_BASE_ADDR + CLINT_MTIME)) < then) { + while (*((volatile uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIME)) < then) { asm volatile (""); } pwm_val = (pwm_val == 0) ? 255 : (pwm_val -1); @@ -121,9 +126,9 @@ int main(void) // Wait 500 ms. If reset is tapped at this point, // we will execute the "magic" loop above. - now = *((volatile uint64_t*) (CLINT_BASE_ADDR + CLINT_MTIME)); + now = *((volatile uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIME)); then = now + 32768/2; - while (*((volatile uint64_t*) (CLINT_BASE_ADDR + CLINT_MTIME)) < then) { + while (*((volatile uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIME)) < then) { asm volatile (""); } |