firmware/retro_tech_fw/user/main.c

@@ -3,8 +3,7 @@
  * GAT Addon Firmware
  * by true
  *
- * version 0.0.3
- * Last Update 20240808
+ * version 0.0.2
  *
  * code was made for different random addons I designed for dc32,
  * then adapted to each one. so things might be a mess.
@@ -27,7 +26,6 @@
 #include "src/config.h"
 #include "src/i2c.h"
 #include "src/led.h"
-#include "src/led_rgbprog.h"
 #include "src/rand.h"
 #include "src/ui.h"
 
@@ -59,12 +57,10 @@ void gpio_init()
     // lightsense LED cathode
     gpio.GPIO_Mode = GPIO_Mode_Out_PP;
     gpio.GPIO_Pin = GPIO_Pin_2;
-    GPIOA->OUTDR = ~GPIO_Pin_2;
     GPIO_Init(GPIOA, &gpio);
 
     // lightsense LED anode
     gpio.GPIO_Pin = GPIO_Pin_0;
-    GPIOD->OUTDR = ~GPIO_Pin_0;
     GPIO_Init(GPIOD, &gpio);
 
     // unused pins
@@ -88,14 +84,7 @@ void gpio_init()
     gpio.GPIO_Pin = GPIO_Pin_3 | GPIO_Pin_6;
     GPIO_Init(GPIOC, &gpio);
 
-    // BTN1 (PC5) pull up, BTN2 (PC4) pull down
-    gpio.GPIO_Pin = GPIO_Pin_4;
-    gpio.GPIO_Mode = GPIO_Mode_IPD;
-    GPIO_Init(GPIOC, &gpio);
-
-    gpio.GPIO_Pin = GPIO_Pin_5;
-    gpio.GPIO_Mode = GPIO_Mode_IPU;
-    GPIO_Init(GPIOC, &gpio);
+    // BTN1, BTN2 will be handled by button handler
 }
 
 int main(void)
@@ -112,6 +101,7 @@ int main(void)
 
     // configure gpio pins, hard buttons (used for settings reset)
     gpio_init();
+    btn_init();
 
     // get saved settings, or reset if BTN1 is pushed
     i2c_init();
@@ -119,7 +109,6 @@ int main(void)
 
     // configure hardware
     adc_init();
-    btn_init();
     led_init();
 
     // configure random
@@ -131,9 +120,6 @@ int main(void)
     // configure systick interrupt
     systick_init();
 
-    // set up LEDs initially
-    led_rgb_firstrun();
-
     // do system shit
     while(1) {
         __WFI();

firmware/retro_tech_fw/user/src/btn.c

@@ -18,10 +18,10 @@ void btn_init()
 {
     uint8_t i;
 
-    // configure GPIO (now handled as part of main GPIO init function)
-    // BTN_PORT->BSHR   = (BTN1_PUPD << BTN1_PIN) | (BTN2_PUPD << BTN2_PIN);
-    // BTN_PORT->CFGLR &= ~((0xf << (BTN1_PIN*4)) | ((0xf << (BTN2_PIN*4))));
-    // BTN_PORT->CFGLR |=   (0x8 << (BTN1_PIN*4)) |  (0x8 << (BTN2_PIN*4));
+    // configure GPIO
+    BTN_PORT->BSHR   = (BTN1_PUPD << BTN1_PIN) | (BTN2_PUPD << BTN2_PIN);
+    BTN_PORT->CFGLR &= ~((0xf << (BTN1_PIN*4)) | ((0xf << (BTN2_PIN*4))));
+    BTN_PORT->CFGLR |=   (0x8 << (BTN1_PIN*4)) |  (0x8 << (BTN2_PIN*4));
 
     // configure default setup
     for (i = 0; i < BTN_COUNT; i++) {

firmware/retro_tech_fw/user/src/i2c.c

@@ -80,9 +80,11 @@ int8_t i2c_read_addr1b(uint8_t addr, uint8_t reg, uint8_t *data, uint8_t len)
 
        *data++ = I2C_ReceiveData(I2C1);
        len--;
-    }
 
-    I2C_GenerateSTOP(I2C1, ENABLE);
+       if (!len) {
+           I2C_GenerateSTOP(I2C1, ENABLE);
+       }
+    }
 
     return 0;
 }
@@ -143,7 +145,7 @@ void i2c_write_reg_8b(uint8_t addr, uint8_t reg, const uint8_t dat)
     i2c_write_addr1b(addr, reg, &dat, 1);
 }
 
-int8_t i2c_addr_scan(uint8_t addr)
+uint8_t i2c_addr_scan(uint8_t addr)
 {
     uint8_t found = 1;
     uint32_t event;
@@ -162,28 +164,30 @@ int8_t i2c_addr_scan(uint8_t addr)
     while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT) && timeout--);
     if (!timeout) return -2;
 
-    I2C_Send7bitAddress(I2C1, (addr & 0xfe), (addr & 0x01));
+    I2C_Send7bitAddress(I2C1, addr, (addr & 1));
     timeout = I2C_TIMEOUT_ACK_POLL;
     if (addr & 1) event = I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED;
     else          event = I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED;
 
-    while ((I2C_CheckEvent(I2C1, event) == NoREADY) && timeout--) {
+    while (I2C_CheckEvent(I2C1, event) && timeout--) {
         if (I2C_GetFlagStatus(I2C1, I2C_FLAG_AF)) {
             found = 0;
             break;
         }
+
     }
 
     if (!timeout) {
         found = 0;
     }
 
+    // reset flags; it might be in a fucked state
+    I2C1->STAR1 = 0;
+
     // send a stop to make sure anything listening knows to stfu
     I2C_GenerateSTOP(I2C1, ENABLE);
 
-    // reset flags; it might be in a fucked state
     if (!found) {
-        I2C1->STAR1 = 0;
         return 0;
     }
 

firmware/retro_tech_fw/user/src/i2c.h

@@ -19,7 +19,7 @@ int8_t i2c_write_addr1b(uint8_t addr, uint8_t reg, const uint8_t *data, uint8_t
 uint8_t i2c_read_reg_8b(uint8_t addr, uint8_t reg);
 void i2c_write_reg_8b(uint8_t addr, uint8_t reg, const uint8_t dat);
 
-int8_t i2c_addr_scan(uint8_t addr);
+uint8_t i2c_addr_scan(uint8_t addr);
 
 
 

firmware/retro_tech_fw/user/src/led_rgbprog.c

@@ -520,23 +520,23 @@ void led_rgb_4_typing(uint8_t preview, uint8_t tick)
         if (typing_fadeout >= 3) typing_fadeout--;
         else typing_fadeout = 0;
 
-        // always do O character
-        for (j = 0; j < 3; j++) {
-            s = rgb[4][j];
-            s *= typing_fadeout;
-            rgb[8][j] = s >> 8;
+        if (!preview || (i == 4) || (((preview & 0xf) == 4) && i >= 5)) {
+            for (j = 0; j < 3; j++) {
+                s = rgb[8][j];
+                s *= typing_fadeout;
+                rgb[8][j] = s >> 8;
+            }
+        }
+
+        w = ((preview & 0xf) == 4) ? 5 : 0;
+
+        for (i = w; i < 8; i++) {
+            rgb[i][0] = rgb[8][0];
+            rgb[i][1] = rgb[8][1];
+            rgb[i][2] = rgb[8][2];
         }
 
         if (!preview) {
-            w = ((preview & 0xf) == 4) ? 5 : 0;
-
-            for (i = w; i < 9; i++) {
-                rgb[i][0] = rgb[4][0];
-                rgb[i][1] = rgb[4][1];
-                rgb[i][2] = rgb[4][2];
-            }
-
-            // cursor
             s = cursor[color];
             s *= typing_fadeout;
             cursor[color] = s >> 8;

firmware/retro_tech_fw/user/src/ui.c

@@ -324,16 +324,12 @@ static void ui_cursor_flash()
         case MODE_PROGRAM: {
             // cursor is on if this program is flagged as on
             cursor[0] = (userconf.ledprog_ena_mask & (1 << preview_idx)) ? 127 : 0;
-            cursor[1] = 0;
-            cursor[2] = 0;
 
             break;
         }
         case MODE_PARAMETER: {
             // cursor is on when program is being edited
             cursor[0] = rgb_prog_is_editing ? 127 : 0;
-            cursor[1] = 0;
-            cursor[2] = 0;
 
             break;
         }
@@ -529,7 +525,7 @@ void ui_render()
             config_save_timer = UI_CONF_SAVE_TIMEOUT;
 
             // rapidly flash lsens
-            if ((tick & 0x7) == 0) {
+            if ((tick >> 3) & 1) {
                 GPIOD->OUTDR ^= GPIO_Pin_0;
             }
 
@@ -573,7 +569,7 @@ void ui_render()
             config_save_timer = UI_CONF_SAVE_TIMEOUT;
 
             // slowly flash lsnes
-            if ((tick & 0x20) == 0) {
+            if ((tick >> 5) & 1) {
                 GPIOD->OUTDR ^= GPIO_Pin_0;
             }