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uart-basic: l0: speedup and drop dead code

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Don't need the HSI48 clocks, that was from a usb demo
This commit is contained in:
Karl Palsson 2017-10-26 21:42:33 +00:00
parent 3c53aa4ec3
commit 0d9dca3ac9
1 changed files with 2 additions and 14 deletions
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16
tests/uart-basic/main-stm32l053disco.c
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@ -30,18 +30,6 @@ static void setup_rcc_hack(void)
rcc_wait_for_osc_ready(RCC_HSI16);
rcc_set_sysclk_source(RCC_HSI16);
/* HSI48 needs the vrefint turned on */
rcc_periph_clock_enable(RCC_SYSCFG);
SYSCFG_CFGR3 |= SYSCFG_CFGR3_ENREF_HSI48 | SYSCFG_CFGR3_EN_VREFINT;
while (!(SYSCFG_CFGR3 & SYSCFG_CFGR3_REF_HSI48_RDYF));
/* For USB, but can't use HSI48 as a sysclock on L0 */
crs_autotrim_usb_enable();
rcc_set_hsi48_source_rc48();
rcc_osc_on(RCC_HSI48);
rcc_wait_for_osc_ready(RCC_HSI48);
/* ok, we manually poked around, let the lib know */
rcc_apb1_frequency = rcc_apb2_frequency = 16e6;
}
@ -76,12 +64,12 @@ int main(void)
while (1) {
gpio_toggle(LED_DISCO_GREEN_PORT, LED_DISCO_GREEN_PIN);
for (i = 0; i < 0xa0000; i++) { /* Wait a bit. */
for (i = 0; i < 0x40000; i++) { /* Wait a bit. */
__asm__("NOP");
}
ub_task();
gpio_toggle(LED_DISCO_GREEN_PORT, LED_DISCO_GREEN_PIN);
for (i = 0; i < 0xa0000; i++) { /* Wait a bit. */
for (i = 0; i < 0x40000; i++) { /* Wait a bit. */
__asm__("NOP");
}
}