From 2dcae5db6fdcc5c604a7bd39d5c0c4b58bbd1a5b Mon Sep 17 00:00:00 2001
From: jaseg <git@jaseg.de>
Date: Sun, 24 Dec 2023 15:31:51 +0100
Subject: Fix some dumb bugs

---
 driver_fw/.gdbinit   |  4 ++--
 driver_fw/src/main.c | 49 ++++++++++++++++++++++++++++++++++---------------
 2 files changed, 36 insertions(+), 17 deletions(-)

diff --git a/driver_fw/.gdbinit b/driver_fw/.gdbinit
index 652efda..a4181e4 100644
--- a/driver_fw/.gdbinit
+++ b/driver_fw/.gdbinit
@@ -1,6 +1,6 @@
 
 # blackmagic-1
-# target extended-remote 192.168.27.252:2022
+target extended-remote 192.168.27.252:2022
 
 # blackmagic-2
 # target extended-remote 192.168.27.114:2022
@@ -9,7 +9,7 @@
 # target extended-remote 192.168.27.207:2022
 
 # blackmagic-4
-target extended-remote 192.168.27.153:2022
+# target extended-remote 192.168.27.153:2022
 
 set print pretty on
 set print elements 512
diff --git a/driver_fw/src/main.c b/driver_fw/src/main.c
index 4502784..7227a4a 100644
--- a/driver_fw/src/main.c
+++ b/driver_fw/src/main.c
@@ -43,11 +43,11 @@ int hex_to_int(char *hex, size_t len) {
         rv = rv<<4;
         char c = hex[len];
         if ('0' <= c && c <= '9')
-            c -= '0';
+            c = c - '0';
         else if ('a' <= c && c <= 'f')
-            c -= 'a' + 0xa;
+            c = c - 'a' + 0xa;
         else if ('A' <= c && c <= 'F')
-            c -= 'A' + 0xa;
+            c = c - 'A' + 0xa;
         else
             c = 0;
         rv |= c;
@@ -161,7 +161,9 @@ int main(void) {
     GPIOB->OSPEEDR = (3<<0) | (3<<1) | (3<<3);
 
     /* GPIOC:
-     * C0-C3: (testpoint)
+     * C0, C3: (testpoint)
+     * C1: Fan 2 PWM
+     * C2: Fan 1 PWM
      * C4: RJ45 LED 4
      * C5: RJ45 LED 3
      * C6: Fuse monitor 7
@@ -172,12 +174,14 @@ int main(void) {
      * C11-C15: (testpoint)
      */
     GPIOC->MODER =
-        IN(0) | IN(1) | IN(2) | IN(3) | IN(9) | IN(11) | IN(12) | IN(13) | IN(14) | IN(15) |
+        IN(0) | OUT(1) | OUT(2) | IN(3) | IN(9) | IN(11) | IN(12) | IN(13) | IN(14) | IN(15) |
         OUT(4) | OUT(5) |
         IN(6) | IN(7) | IN(8) |
         AF(10);
+    GPIOC->OTYPER = (1<<1) | (1<<2);
     GPIOC->AFR[1] = AFRH(10, 2);
     GPIOC->OSPEEDR = (3<<10);
+    GPIOC->BRR = (1<<1) | (1<<2); /* Disable fans */
 
     /* GPIOD:
      * D0-D6: (testpoint)
@@ -187,11 +191,20 @@ int main(void) {
     GPIOD->MODER = IN(0) | IN(1) | IN(2) | IN(3) | IN(4) | IN(5) | IN(6) |
         IN(8) | IN(9);
 
-    for (int i=0; i<20; i++) {
+    for (int i=0; i<10; i++) {
         set_status_leds(LED_ON);
-        delay_us(500*1000);
+        delay_us(250*1000);
         set_status_leds(0);
-        delay_us(500*1000);
+        delay_us(250*1000);
+    }
+
+    GPIOC->BSRR = (1<<1) | (1<<2); /* Enable fans */
+
+    for (int i=0; i<10; i++) {
+        set_status_leds(LED_ON);
+        delay_us(250*1000);
+        set_status_leds(0);
+        delay_us(250*1000);
     }
 
     TIM1->CCMR1 = (6<<TIM_CCMR1_OC2M_Pos) | TIM_CCMR1_OC2PE;
@@ -249,12 +262,18 @@ int main(void) {
         }
         set_status_leds(leds);
 
-        if (USART1->ISR & USART_ISR_RXNE_RXFNE) {
-            rj45_rx_ctr = 100000;
-            if (USART1->RDR == '\n') {
-                if (rxp != 4*16*3) {
+        int isr = USART1->ISR;
+        if ((isr & USART_ISR_ORE) || (isr & USART_ISR_FE)) {
+            USART1->ICR = USART_ICR_ORECF | USART_ICR_FECF;
+        }
+
+        if (isr & USART_ISR_RXNE_RXFNE) {
+            rj45_rx_ctr = 20000;
+            char c = USART1->RDR;
+            if (c == '\n') {
+                if (rxp > 2 && rxp != 4*16*3) {
+                    control_err_ctr = 1000000;
                     rxp = 0;
-                    control_err_ctr = 10000000;
                     continue;
                 }
 
@@ -271,12 +290,12 @@ int main(void) {
                     }
                 }
                 rxp = 0;
-                ping_ctr = 1000000;
+                ping_ctr = 500000;
                 update_tx_buf();
 
             } else {
                 if (rxp <= sizeof(rxbuf)) {
-                    rxbuf[rxp] = USART1->RDR;
+                    rxbuf[rxp] = c;
                     rxp ++;
                 }
             }
-- 
cgit