From: Keith Packard <keithp@keithp.com>
Date: Fri, 28 Apr 2017 07:04:14 +0000 (-0700)
Subject: altos/stmf0: Make sure systick is off before programming
X-Git-Tag: 1.8~159
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=2b3c79e9d88c9bb0b5aca4bc20fa942ebcfe40fc

altos/stmf0: Make sure systick is off before programming

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

diff --git a/src/stmf0/ao_timer.c b/src/stmf0/ao_timer.c
index 5c05e4f1..50fd67b8 100644
--- a/src/stmf0/ao_timer.c
+++ b/src/stmf0/ao_timer.c
@@ -86,6 +86,7 @@ ao_timer_set_adc_interval(uint8_t interval)
 void
 ao_timer_init(void)
 {
+	stm_systick.csr = 0;
 	stm_systick.rvr = SYSTICK_RELOAD;
 	stm_systick.cvr = 0;
 	stm_systick.csr = ((1 << STM_SYSTICK_CSR_ENABLE) |