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| author | jaseg <git@jaseg.net> | 2017-08-15 15:57:33 +0200 |
|---|---|---|
| committer | jaseg <git@jaseg.net> | 2017-08-15 15:57:33 +0200 |
| commit | a18b197ac4c26a6454ed16e4727327f545a45d10 (patch) | |
| tree | fc415bd73fbe681bb43576d6faf6ee8245521815 | |
| parent | 9eb92caa6cabcb0a239dd0431aae9f812e8adab8 (diff) | |
| download | 7seg-a18b197ac4c26a6454ed16e4727327f545a45d10.tar.gz 7seg-a18b197ac4c26a6454ed16e4727327f545a45d10.tar.bz2 7seg-a18b197ac4c26a6454ed16e4727327f545a45d10.zip | |
Benchmark code
| -rw-r--r-- | fw/main.c | 14 | ||||
| -rw-r--r-- | fw/measure_transpose_performance.gdb | 17 |
2 files changed, 24 insertions, 7 deletions
@@ -245,12 +245,13 @@ int main(void) { RCC->CFGR |= (2<<RCC_CFGR_SW_Pos); SystemCoreClockUpdate(); - SysTick_Config(SystemCoreClock/1000); /* 1ms interval */ - NVIC_DisableIRQ(SysTick_IRQn); + //SysTick_Config(SystemCoreClock/1000); /* 1ms interval */ + //NVIC_DisableIRQ(SysTick_IRQn); + SysTick->VAL = 0U; + SysTick->LOAD = 0x00FFFFFF; + SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk; while (42) { - static int tick __attribute__((used)); - static int cvr __attribute__((used)); - tick = sys_time; + static unsigned int cvr __attribute__((used)); cvr = SysTick->VAL; //if (fb_op == FB_FORMAT) { transpose_data(rx_buf, write_fb); @@ -259,8 +260,7 @@ int main(void) { // while (fb_op == FB_UPDATE) // ; //} - tick = sys_time - tick; - cvr = SysTick->VAL - cvr; + cvr = cvr - SysTick->VAL; asm volatile ("bkpt"); } //LL_Init1msTick(SystemCoreClock); diff --git a/fw/measure_transpose_performance.gdb b/fw/measure_transpose_performance.gdb new file mode 100644 index 0000000..966d69f --- /dev/null +++ b/fw/measure_transpose_performance.gdb @@ -0,0 +1,17 @@ +target remote localhost:3333 +file main.elf +load +set print pretty on +set pagination off +cont +print cvr/50.0F +cont +print cvr/50.0F +cont +print cvr/50.0F +cont +print cvr/50.0F +cont +print cvr/50.0F +cont +quit |