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| author | Karl Palsson <karlp@tweak.net.au> | 2016-03-14 21:34:18 +0000 |
|---|---|---|
| committer | Karl Palsson <karlp@tweak.net.au> | 2016-03-14 21:34:18 +0000 |
| commit | 9b371b5189c368932d4dd15ca6904212cd59e83b (patch) | |
| tree | b3a89fea11e327dee2bd8b753c5fb9320ae5e057 /tests/adc-power | |
| parent | 39467f34cbff0b1e21e6ea75b9359fd42321a416 (diff) | |
| download | olsndot-9b371b5189c368932d4dd15ca6904212cd59e83b.tar.gz olsndot-9b371b5189c368932d4dd15ca6904212cd59e83b.tar.bz2 olsndot-9b371b5189c368932d4dd15ca6904212cd59e83b.zip | |
fix l4 to run at 48Mhz and with a clock
Diffstat (limited to 'tests/adc-power')
| -rw-r--r-- | tests/adc-power/adc-power.c | 1 | ||||
| -rw-r--r-- | tests/adc-power/main-stm32l4-disco.c | 10 |
2 files changed, 11 insertions, 0 deletions
diff --git a/tests/adc-power/adc-power.c b/tests/adc-power/adc-power.c index a188649..97a083a 100644 --- a/tests/adc-power/adc-power.c +++ b/tests/adc-power/adc-power.c @@ -66,6 +66,7 @@ void adc_power_init(void) /* same same but different */ rcc_periph_clock_enable(RCC_ADC1); ADC_CR(ADC1) &= ~ADC_CR_DEEPPWD; + RCC_CCIPR |= 3 << 28; // system clock as adc clock. (with CKMODE == 0) adc_enable_regulator(ADC1); #else diff --git a/tests/adc-power/main-stm32l4-disco.c b/tests/adc-power/main-stm32l4-disco.c index a23266f..ad21fcb 100644 --- a/tests/adc-power/main-stm32l4-disco.c +++ b/tests/adc-power/main-stm32l4-disco.c @@ -7,7 +7,9 @@ #include <stdio.h> #include <unistd.h> #include <libopencm3/cm3/nvic.h> +#include <libopencm3/stm32/flash.h> #include <libopencm3/stm32/gpio.h> +#include <libopencm3/stm32/pwr.h> #include <libopencm3/stm32/rcc.h> #include "trace.h" @@ -18,6 +20,12 @@ #define LED_DISCO_GREEN_PORT GPIOE #define LED_DISCO_GREEN_PIN GPIO8 +int hack(void) { + pwr_set_vos_scale(PWR_SCALE1); + flash_set_ws(FLASH_ACR_LATENCY_2WS); + rcc_set_msi_range(RCC_CR_MSIRANGE_48MHZ); + return 0; +} int main(void) { @@ -27,6 +35,8 @@ int main(void) rcc_periph_clock_enable(RCC_GPIOE); // led rcc_periph_clock_enable(RCC_GPIOA); // adcs rcc_periph_clock_enable(RCC_GPIOC); // adcs + rcc_periph_clock_enable(RCC_PWR); + hack(); printf("hi guys!\n"); /* green led for ticking */ gpio_mode_setup(LED_DISCO_GREEN_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, |