diff options
| author | Keith Packard <keithp@keithp.com> | 2012-06-26 23:11:10 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2012-06-26 23:11:10 -0700 |
| commit | f1ae622eff60e05c1f5d8f822a3cf6a85750c6cc (patch) | |
| tree | 9652e24ae8a4e56a47b463419356da356f7ade7f /src/stm/ao_arch.h | |
| parent | 936ecad62596f34773afb7460b10f63df7d0896d (diff) | |
altos: Optimize FEC encode and decode
Integrate interleaving, CRC and padding within the decode/encode
functions.
Provide for ISR priorities so that the 1120 RX interrupt takes
precedence over the other interrupts or we risk losing bits.
Optimize the viterbi decoder a bit (goes from 10ms per packet to 7ms
per packet).
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/stm/ao_arch.h')
| -rw-r--r-- | src/stm/ao_arch.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/src/stm/ao_arch.h b/src/stm/ao_arch.h index bbd1b3b1..30cd9ea5 100644 --- a/src/stm/ao_arch.h +++ b/src/stm/ao_arch.h @@ -25,7 +25,7 @@ * STM32L definitions and code fragments for AltOS */ -#define AO_STACK_SIZE 1024 +#define AO_STACK_SIZE 512 #define AO_LED_TYPE uint16_t @@ -111,14 +111,22 @@ extern const uint16_t ao_serial_number; uint32_t *sp; \ asm("mov %0,sp" : "=&r" (sp) ); \ ao_cur_task->sp = (sp); \ - if ((uint8_t *) sp < ao_cur_task->stack) \ + if ((uint8_t *) sp < &ao_cur_task->stack[0]) \ ao_panic (AO_PANIC_STACK); \ } while (0) -#define ao_arch_isr_stack() /* nothing */ +#if 0 +#define ao_arch_isr_stack() do { \ + uint32_t *sp = (uint32_t *) 0x20004000; \ + asm("mov %0,sp" : "=&r" (sp) ); \ + } while (0) +#else +#define ao_arch_isr_stack() +#endif + #define ao_arch_cpu_idle() do { \ - asm("wfi"); \ + asm("wfi"); \ } while (0) #define ao_arch_restore_stack() do { \ @@ -173,6 +181,11 @@ extern const uint16_t ao_serial_number; #define AO_TIM91011_CLK (2 * AO_PCLK2) #endif +#define AO_STM_NVIC_HIGH_PRIORITY 4 +#define AO_STM_NVIC_CLOCK_PRIORITY 6 +#define AO_STM_NVIC_MED_PRIORITY 8 +#define AO_STM_NVIC_LOW_PRIORITY 10 + void ao_lcd_stm_init(void); void ao_lcd_font_init(void); @@ -215,7 +228,7 @@ ao_serial3_pollchar(void); void ao_serial3_set_speed(uint8_t speed); -extern uint32_t ao_radio_cal; +extern const uint32_t ao_radio_cal; void ao_adc_init(); |