altos/stm: Enable HSI timer when HAS_ADC_SINGLE is set

The ADC unit always uses the HSI timer.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/src/stm/ao_timer.c b/src/stm/ao_timer.c
index 1576a6c91f78e38132b119b025415e0c112a3970..7b526902169abc46cbb2f7bc61fbcab8e525c293 100644 (file)
--- a/src/stm/ao_timer.c
+++ b/src/stm/ao_timer.c
@@ -149,7 +149,7 @@ ao_clock_init(void)
 #define STM_RCC_CFGR_PLLSRC_TARGET_CLOCK       (0 << STM_RCC_CFGR_PLLSRC)
 #endif
 
-#if !AO_HSE || HAS_ADC
+#if !AO_HSE || HAS_ADC || HAS_ADC_SINGLE
        /* Enable HSI RC clock 16MHz */
        stm_rcc.cr |= (1 << STM_RCC_CR_HSION);
        while (!(stm_rcc.cr & (1 << STM_RCC_CR_HSIRDY)))