From ac4cbca273e8bbde5b2f58df29e1fb6321fc2ee7 Mon Sep 17 00:00:00 2001
From: jaseg <git@jaseg.net>
Date: Wed, 14 Oct 2020 13:06:13 +0200
Subject: Fix driver circuits

---
 fw/main.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

(limited to 'fw/main.c')

diff --git a/fw/main.c b/fw/main.c
index 360728e..ca4525b 100644
--- a/fw/main.c
+++ b/fw/main.c
@@ -56,14 +56,18 @@ int main(void) {
           (1<<GPIO_MODER_MODER4_Pos)|   /* PA4    - Port 4 */
           (1<<GPIO_MODER_MODER9_Pos);   /* PA9    - LED */
 
-    int idx = 1;
+    //GPIOA->OTYPER |= (1<<1) | (1<<2) | (1<<3) | (1<<4) | (1<<9);
+
+    int idx = 0;
     while (1) {
         GPIOA->ODR ^= (1<<9);
-        GPIOA->ODR = 2<<idx;
+        GPIOA->ODR &= ~(0xf<<1);
+        GPIOA->ODR |= 1<<(idx+1);
         idx += 1;
-        if (idx > 4)
-            idx = 1;
-        for (size_t j=0; j<1000000; j++) {
+        if (idx > 3)
+            idx = 0;
+
+        for (size_t j=0; j<100000; j++) {
             asm volatile ("nop");
         }
     }
-- 
cgit