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@ -28,7 +28,44 @@ void nlr_jump_fail(void *val) {
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void SystemClock_Config(void);
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// ###
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// ### from stm32_it.c
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/**
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* @brief This function handles SysTick Handler.
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* @param None
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* @retval None
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*/
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void SysTick_Handler(void) {
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// Instead of calling HAL_IncTick we do the increment here of the counter.
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// This is purely for efficiency, since SysTick is called 1000 times per
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// second at the highest interrupt priority.
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// Note: we don't need uwTick to be declared volatile here because this is
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// the only place where it can be modified, and the code is more efficient
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// without the volatile specifier.
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extern uint32_t uwTick;
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uwTick += 1;
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// Read the systick control regster. This has the side effect of clearing
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// the COUNTFLAG bit, which makes the logic in sys_tick_get_microseconds
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// work properly.
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SysTick->CTRL;
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#if 0
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// Right now we have the storage and DMA controllers to process during
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// this interrupt and we use custom dispatch handlers. If this needs to
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// be generalised in the future then a dispatch table can be used as
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// follows: ((void(*)(void))(systick_dispatch[uwTick & 0xf]))();
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if (STORAGE_IDLE_TICK(uwTick)) {
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NVIC->STIR = FLASH_IRQn;
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}
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if (DMA_IDLE_ENABLED() && DMA_IDLE_TICK(uwTick)) {
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dma_idle_handler(uwTick);
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}
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#endif
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}
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// ### from timer.c
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@ -65,7 +102,16 @@ int main(void) {
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display_init();
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display_clear();
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display_text(0, 0, "TREZOR", 6, FONT_MONO, 0xFFFF, 0x0000);
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display_text(100, 120, "TREZOR", 6, FONT_MONO, 0xFFFF, 0x0000);
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display_text(90, 140, "bootloader", 10, FONT_MONO, 0xFFFF, 0x0000);
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display_backlight(255);
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HAL_Delay(250);
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display_backlight(0);
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HAL_Delay(250);
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display_backlight(100);
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HAL_Delay(250);
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display_backlight(0);
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HAL_Delay(250);
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display_backlight(255);
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__fatal_error("end");
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