From 42b26d9c20373df9b70719b8029910455eb745a8 Mon Sep 17 00:00:00 2001
From: Nico Tonnhofer <wurstnase.reprap@gmail.com>
Date: Sat, 21 Nov 2015 10:14:02 +0100
Subject: [PATCH] STM32F411: get clock.c in.

No code changes neccessary.

This code in ifclock(clock_flag_1s) in clock.c should give a nice,
accurate clock:

    static uint8_t minutes = 0, seconds = 0;

    seconds++;
    if ( ! (seconds % 60)) {
      seconds = 0;
      minutes++;
    }
    sersendf_P(PSTR("%su:"), minutes);
    if (seconds < 10)
      serial_writechar('0');
    sersendf_P(PSTR("%su\n"), seconds);

Current sizes are:

    SIZES          ARM...     stm32f411
    FLASH  :  4464 bytes           1%
    RAM    :   204 bytes           1%
    EEPROM :     0 bytes           0%
---
 timer-stm32.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/timer-stm32.c b/timer-stm32.c
index bf5845a..21f7bea 100644
--- a/timer-stm32.c
+++ b/timer-stm32.c
@@ -7,6 +7,9 @@
 
 #if defined TEACUP_C_INCLUDE && defined __ARM_STM32F411__
 
+#include "cmsis-core_cm4.h"
+#include "clock.h"
+
 
 /** Timer initialisation.
 
@@ -45,8 +48,8 @@ void timer_init() {
 */
 void SysTick_Handler(void) {
 
-  #ifndef __ARMEL_NOTYET__
   clock_tick();
+  #ifndef __ARMEL_NOTYET__
   dda_clock();
   #endif /* __ARMEL_NOTYET__ */
 }