From bb11ddd4477c1a9ad00596065eadaef943529201 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lucas=20Ple=C3=9F?= <lucas@xleave.de>
Date: Sun, 14 Jan 2018 19:16:26 +0100
Subject: [PATCH] sort of working

---
 eigener_ctrl/stm32f407-olimex/Makefile |  4 ++--
 eigener_ctrl/stm32f407-olimex/dfi.c    | 31 +++++++++++++++++++-------
 2 files changed, 25 insertions(+), 10 deletions(-)

diff --git a/eigener_ctrl/stm32f407-olimex/Makefile b/eigener_ctrl/stm32f407-olimex/Makefile
index c98d4ea..9d507ae 100755
--- a/eigener_ctrl/stm32f407-olimex/Makefile
+++ b/eigener_ctrl/stm32f407-olimex/Makefile
@@ -5,8 +5,8 @@
 
 # Compiler options here.
 ifeq ($(USE_OPT),)
-#  USE_OPT = -O2 -ggdb -fomit-frame-pointer -falign-functions=16
-  USE_OPT = -ggdb -fomit-frame-pointer -falign-functions=16
+  USE_OPT = -O2 -ggdb -fomit-frame-pointer -falign-functions=16
+#  USE_OPT = -ggdb -fomit-frame-pointer -falign-functions=16
 endif
 
 # C specific options here (added to USE_OPT).
diff --git a/eigener_ctrl/stm32f407-olimex/dfi.c b/eigener_ctrl/stm32f407-olimex/dfi.c
index d635745..4c29616 100644
--- a/eigener_ctrl/stm32f407-olimex/dfi.c
+++ b/eigener_ctrl/stm32f407-olimex/dfi.c
@@ -32,7 +32,7 @@ THD_FUNCTION(dfiFunc, p) {
 
   while(true) {
 
-      if(ST2MS(chVTTimeElapsedSinceX(last_time_simul)) > 20) {
+      if(ST2MS(chVTTimeElapsedSinceX(last_time_simul)) > 5) {
 
         for(int dataline = 0; dataline < DATA_LINES; dataline++) {
 
@@ -115,14 +115,20 @@ static void refreshDisplay(void *arg) {
 
     palClearPort(GPIOD, 0xff00);  // fets off
 
-    for (int w = 0; w < 125; w++); // wait ca 8µS
-
+    for (int w = 0; w < 125; w++) { // wait ca 8µS    /7 125
+      asm ("nop");
+    }
     palSetPad(GPIOE, GPIOE_PIN1); // latch high
-    for (int w = 0; w < 25; w++);   // wait ca 1,6µS = 25
+    for (int w = 0; w < 25; w++) {   // wait ca 1,6µS = 25
+      asm ("nop");
+    }
+
     palClearPad(GPIOE, GPIOE_PIN1);  // latch low
 
 
-    for (int w = 0; w < 13; w++); // wait ca 1µS
+    for (int w = 0; w < 13; w++) { // wait ca 1µS
+      asm ("nop");
+    }
 
     // switch fets
     //palSetPort(GPIOD, (1 << (fet+8)));
@@ -160,10 +166,16 @@ void shiftOut(uint8_t val1, uint8_t val2, uint8_t val3,
         palWritePad(GPIOE, GPIOE_PIN6, (val5 & (1 << i)) >> i);
         palWritePad(GPIOE, GPIOE_PIN7, (val6 & (1 << i)) >> i);
 
-        palSetPad(GPIOE, GPIOE_PIN0);     //clock
+/*        int val = ((val6 & (1 << i) >> i) << 7) |
+                  ((val5 & (1 << i) >> i) << 6) |
+                  ((val4 & (1 << i) >> i) << 5) |
+                  ((val3 & (1 << i) >> i) << 4) |
+                  ((val2 & (1 << i) >> i) << 3) |
+                  ((val1 & (1 << i) >> i) << 2);
 
-        asm ("nop");
-        asm ("nop"); asm ("nop");
+        palWriteGroup(GPIOE, 0b11111100, 0, val);
+*/
+        palSetPad(GPIOE, GPIOE_PIN0);     //clock
         asm ("nop");
         asm ("nop");
         asm ("nop");
@@ -171,6 +183,7 @@ void shiftOut(uint8_t val1, uint8_t val2, uint8_t val3,
         asm ("nop");
         asm ("nop");
         palClearPad(GPIOE, GPIOE_PIN0);   //clock
+
     }
 }
 
@@ -182,6 +195,8 @@ void init_hw() {
 
   palSetGroupMode(GPIOD, 0xff00, 0, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
   palSetGroupMode(GPIOE, 0x00ff, 0, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
+
+
   /*
     // enable clock
     RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD | RCC_AHB1Periph_GPIOE, ENABLE);