From: Keith Packard <keithp@keithp.com>
Date: Mon, 1 May 2017 00:38:21 +0000 (-0700)
Subject: altos/telegps-v2.0: Set CPU clock to 48MHz instread of 96MHz
X-Git-Tag: 1.8~151
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=979a1b8d80189e56745316da3de9288ee32e102c;hp=671e00f9fa75d75b5f15d8cc558a46a9651690fa

altos/telegps-v2.0: Set CPU clock to 48MHz instread of 96MHz

Turns out the CPU doesn't run well at that speed. Who would have guessed?

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

diff --git a/src/telegps-v2.0/ao_pins.h b/src/telegps-v2.0/ao_pins.h
index beef86c7..37a5fa39 100644
--- a/src/telegps-v2.0/ao_pins.h
+++ b/src/telegps-v2.0/ao_pins.h
@@ -35,8 +35,9 @@
 
 #define AO_HSE                  32000000
 #define AO_RCC_CFGR_PLLMUL      STM_RCC_CFGR_PLLMUL_3
+#define AO_RCC_CFGR2_PLLDIV	STM_RCC_CFGR2_PREDIV_2
 #define AO_PLLMUL               3
-#define AO_PLLDIV               1
+#define AO_PLLDIV               2
 
 /* HCLK = 48MHz */
 #define AO_AHB_PRESCALER        1
@@ -46,8 +47,6 @@
 #define AO_APB_PRESCALER        1
 #define AO_RCC_CFGR_PPRE_DIV    STM_RCC_CFGR_PPRE_DIV_1
 
-#define AO_RCC_CFGR2_PLLDIV	STM_RCC_CFGR2_PREDIV_1
-
 #define HAS_USB                         1
 #define AO_USB_DIRECTIO                 0
 #define AO_PA11_PA12_RMP                1