Display on I2C2 (not working)

diff --git a/Inc/app.h b/Inc/app.h
new file mode 100644 (file)
index 0000000..bd81ad0
--- /dev/null
+++ b/Inc/app.h
@@ -0,0 +1,4 @@
+// display.c
+
+void display_init(void);
+void display_counter(uint cnt);

diff --git a/Makefile b/Makefile
index a1e31eb671ea2c2ac41838e26919953bb45c4098..b88dcda168f9cc2ce95d9395e989de594907c41c 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -56,6 +56,7 @@ Src/main.c \
 Src/debug.c \
 Src/usb.c \
 Src/usbdev.c \
+Src/display.c \
 /aux/misc/stm/F1-package/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_rcc.c \
 /Src/system_stm32f1xx.c \
 Src/stm32f1xx_it.c \

diff --git a/Src/display.c b/Src/display.c
new file mode 100644 (file)
index 0000000..06c5fe2
--- /dev/null
+++ b/Src/display.c
@@ -0,0 +1,159 @@
+#include "util.h"
+#include "main.h"
+#include "app.h"
+
+static const byte Gentium23x32[] = {
+        0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0x1F, 0x00, 0x80, 0xFF, 0xFF, 0x00, 0xE0, 0xFF, 0xFF, 0x03, 0xF0, 0xFF, 0xFF, 0x0F, 0xF8, 0xFF, 0xFF, 0x1F, 0xFC, 0xFF, 0xFF, 0x3F, 0xFE, 0x01, 0xE0, 0x3F, 0x3E, 0x00, 0x00, 0x7F, 0x1F, 0x00, 0x00, 0x7C, 0x0F, 0x00, 0x00, 0x78, 0x0F, 0x00, 0x00, 0x78, 0x1F, 0x00, 0x00, 0x78, 0x3F, 0x00, 0x00, 0x78, 0x7F, 0x00, 0x00, 0x3E, 0xFE, 0x07, 0xC0, 0x3F, 0xFE, 0xFF, 0xFF, 0x1F, 0xFC, 0xFF, 0xFF, 0x0F, 0xF8, 0xFF, 0xFF, 0x07, 0xE0, 0xFF, 0xFF, 0x03, 0x80, 0xFF, 0xFF, 0x00, 0x00, 0xFC, 0x0F, 0x00,  // Code for char 0
+        0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x70, 0x78, 0x00, 0x00, 0x70, 0x78, 0x00, 0x00, 0x78, 0x78, 0x00, 0x00, 0x78, 0x7C, 0x00, 0x00, 0x78, 0x3C, 0x00, 0x00, 0x78, 0xFE, 0xFF, 0xFF, 0x7F, 0xFE, 0xFF, 0xFF, 0x7F, 0xFE, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0x7F, 0xFE, 0xFF, 0xFF, 0x7F, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0x00,  // Code for char 1
+        0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x80, 0x01, 0x00, 0x78, 0xE0, 0x03, 0x00, 0x7C, 0xF0, 0x03, 0x00, 0x7E, 0xF8, 0x03, 0x80, 0x7F, 0xFC, 0x01, 0xC0, 0x7F, 0xFE, 0x01, 0xE0, 0x7F, 0x3E, 0x00, 0xF0, 0x7F, 0x1E, 0x00, 0xFC, 0x7F, 0x0F, 0x00, 0xFE, 0x79, 0x0F, 0x00, 0xFF, 0x78, 0x0F, 0xC0, 0x7F, 0x78, 0x1F, 0xE0, 0x3F, 0x78, 0x3F, 0xF8, 0x0F, 0x78, 0xFF, 0xFF, 0x07, 0x78, 0xFE, 0xFF, 0x03, 0x78, 0xFE, 0xFF, 0x00, 0x7C, 0xFC, 0x7F, 0x80, 0x7F, 0xF8, 0x1F, 0x80, 0x7F, 0xE0, 0x07, 0x80, 0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  // Code for char 2
+        0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0xC0, 0x00, 0x00, 0x1F, 0xF0, 0x01, 0x00, 0x1E, 0xF8, 0x01, 0x00, 0x3E, 0xFC, 0x01, 0x00, 0x3C, 0xFE, 0x00, 0x00, 0x7C, 0xFE, 0x00, 0x00, 0x78, 0x1E, 0xE0, 0x00, 0x78, 0x0F, 0xF0, 0x00, 0x78, 0x0F, 0xF0, 0x00, 0x78, 0x0F, 0xF0, 0x00, 0x78, 0x1F, 0xF8, 0x01, 0x7C, 0x3F, 0xFC, 0x01, 0x7C, 0xFF, 0xFF, 0x07, 0x3F, 0xFE, 0xFF, 0xFF, 0x3F, 0xFE, 0xFF, 0xFF, 0x1F, 0xFC, 0xCF, 0xFF, 0x0F, 0xF8, 0xC7, 0xFF, 0x07, 0xE0, 0x83, 0xFF, 0x03, 0x00, 0x00, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  // Code for char 3
+        0x17, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x00, 0x80, 0x3F, 0x00, 0x00, 0xC0, 0x3F, 0x00, 0x00, 0xF0, 0x3F, 0x00, 0x00, 0xF8, 0x3F, 0x00, 0x00, 0xFE, 0x3D, 0x00, 0x00, 0xFF, 0x3C, 0x70, 0xC0, 0x3F, 0x3C, 0x70, 0xE0, 0x1F, 0x3C, 0x70, 0xF8, 0x07, 0x3C, 0x78, 0xFC, 0x03, 0x3C, 0x78, 0xFE, 0xFF, 0xFF, 0x7F, 0xFE, 0xFF, 0xFF, 0x7F, 0xFE, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0x7F, 0xFE, 0xFF, 0xFF, 0x7F, 0x00, 0x00, 0x3C, 0x78, 0x00, 0x00, 0x3C, 0x70, 0x00, 0x00, 0x1C, 0x70, 0x00, 0x00, 0x08, 0x00,  // Code for char 4
+        0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0xC0, 0x00, 0x1F, 0x00, 0xFE, 0x01, 0x1E, 0xFC, 0xFF, 0x01, 0x3E, 0xFC, 0xFF, 0x00, 0x3C, 0xFC, 0xFF, 0x00, 0x3C, 0xFC, 0x7F, 0x00, 0x78, 0x3C, 0x78, 0x00, 0x78, 0x3C, 0x78, 0x00, 0x78, 0x3C, 0x78, 0x00, 0x78, 0x3C, 0x78, 0x00, 0x78, 0x3C, 0xF8, 0x00, 0x7C, 0x3C, 0xF8, 0x00, 0x7E, 0x3C, 0xF0, 0x03, 0x3F, 0x3C, 0xF0, 0xFF, 0x3F, 0x3C, 0xF0, 0xFF, 0x1F, 0x1E, 0xE0, 0xFF, 0x0F, 0x0F, 0xC0, 0xFF, 0x07, 0x06, 0x80, 0xFF, 0x03, 0x00, 0x00, 0xFE, 0x00, 0x00, 0x00, 0x00, 0x00,  // Code for char 5
+        0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x7F, 0x00, 0x00, 0xF8, 0xFF, 0x01, 0x00, 0xFE, 0xFF, 0x07, 0x80, 0xFF, 0xFF, 0x0F, 0xC0, 0xFF, 0xFF, 0x1F, 0xE0, 0xFF, 0xFF, 0x3F, 0xF0, 0xFF, 0xC1, 0x3F, 0xF8, 0xF7, 0x00, 0x7E, 0xF8, 0x71, 0x00, 0x7C, 0xFC, 0x78, 0x00, 0x78, 0x7C, 0x78, 0x00, 0x78, 0x3E, 0x78, 0x00, 0x78, 0x1E, 0xF8, 0x00, 0x7C, 0x1E, 0xF8, 0x03, 0x3E, 0x0F, 0xF0, 0xFF, 0x3F, 0x0F, 0xF0, 0xFF, 0x1F, 0x0F, 0xE0, 0xFF, 0x0F, 0x06, 0xE0, 0xFF, 0x07, 0x00, 0x80, 0xFF, 0x03, 0x00, 0x00, 0x7E, 0x00,  // Code for char 6
+        0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x01, 0x00, 0x00, 0xF8, 0x01, 0x00, 0x00, 0xFC, 0x01, 0x00, 0x00, 0xFC, 0x01, 0x00, 0x20, 0x7C, 0x00, 0x00, 0x78, 0x3C, 0x00, 0x00, 0x7E, 0x3C, 0x00, 0x80, 0x7F, 0x3C, 0x00, 0xE0, 0x3F, 0x3C, 0x00, 0xF8, 0x3F, 0x3C, 0x00, 0xFE, 0x1F, 0x3C, 0x80, 0xFF, 0x0F, 0x3C, 0xE0, 0xFF, 0x01, 0x3C, 0xF8, 0x7F, 0x00, 0x3C, 0xFE, 0x0F, 0x00, 0xFC, 0xFF, 0x03, 0x00, 0xFC, 0xFF, 0x00, 0x00, 0xFC, 0x1F, 0x00, 0x00, 0xFC, 0x07, 0x00, 0x00, 0xFC, 0x01, 0x00, 0x00, 0x7C, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00,  // Code for char 7
+        0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x03, 0xC0, 0x07, 0xFC, 0x07, 0xF0, 0x1F, 0xFE, 0x1F, 0xF8, 0x3F, 0xFF, 0x1F, 0xFC, 0xBF, 0xFF, 0x3F, 0xFE, 0xFF, 0xFF, 0x3F, 0xFE, 0xFF, 0x0F, 0x7E, 0x1F, 0xFE, 0x03, 0x7C, 0x0F, 0xFC, 0x01, 0x78, 0x0F, 0xF8, 0x01, 0x78, 0x0F, 0xF8, 0x01, 0x78, 0x0F, 0xF8, 0x03, 0x78, 0x1F, 0xFC, 0x07, 0x7C, 0xFF, 0xFF, 0x0F, 0x3E, 0xFE, 0xFF, 0xFF, 0x3F, 0xFE, 0xDF, 0xFF, 0x1F, 0xFC, 0xCF, 0xFF, 0x0F, 0xF8, 0x87, 0xFF, 0x07, 0xF0, 0x01, 0xFF, 0x03, 0x00, 0x00, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00,  // Code for char 8
+        0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x00, 0x00, 0xC0, 0xFF, 0x00, 0x00, 0xF0, 0xFF, 0x01, 0x60, 0xF8, 0xFF, 0x03, 0xE0, 0xFC, 0xFF, 0x07, 0xF0, 0xFC, 0xFF, 0x07, 0xF0, 0x7E, 0xE0, 0x0F, 0xF8, 0x1E, 0x80, 0x0F, 0x78, 0x0F, 0x00, 0x0F, 0x7C, 0x0F, 0x00, 0x0F, 0x7C, 0x0F, 0x00, 0x0F, 0x3E, 0x0F, 0x00, 0x0F, 0x3F, 0x1F, 0x00, 0x87, 0x1F, 0x3F, 0x80, 0xE7, 0x1F, 0xFE, 0xC1, 0xFB, 0x0F, 0xFE, 0xFF, 0xFF, 0x07, 0xFC, 0xFF, 0xFF, 0x03, 0xF8, 0xFF, 0xFF, 0x01, 0xF0, 0xFF, 0x7F, 0x00, 0xC0, 0xFF, 0x1F, 0x00, 0x00, 0xFF, 0x03, 0x00,  // Code for char 9
+        0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x03, 0xC0, 0x07, 0xF0, 0x07, 0xE0, 0x0F, 0xF8, 0x07, 0xF0, 0x0F, 0xF8, 0x07, 0xF0, 0x0F, 0xF8, 0x07, 0xF0, 0x0F, 0xF8, 0x07, 0xF0, 0x0F, 0xF8, 0x03, 0xF0, 0x07, 0xF0, 0x01, 0xE0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00   // Code for char :
+};
+
+// Based on https://github.com/adafruit/Adafruit_SSD1306
+
+#define SSD1306_SETLOWCOLUMN 0x00
+#define SSD1306_SETHIGHCOLUMN 0x10
+#define SSD1306_MEMORYMODE 0x20
+#define SSD1306_SETSTARTLINE 0x40
+#define SSD1306_SETCONTRAST 0x81
+#define SSD1306_CHARGEPUMP 0x8D
+#define SSD1306_SEGREMAP 0xA0
+#define SSD1306_DISPLAYALLON_RESUME 0xA4
+#define SSD1306_DISPLAYALLON 0xA5
+#define SSD1306_NORMALDISPLAY 0xA6
+#define SSD1306_INVERTDISPLAY 0xA7
+#define SSD1306_SETMULTIPLEX 0xA8
+#define SSD1306_DISPLAYOFF 0xAE
+#define SSD1306_DISPLAYON 0xAF
+#define SSD1306_SETSTARTPAGE 0xB0
+#define SSD1306_COMSCANINC 0xC0
+#define SSD1306_COMSCANDEC 0xC8
+#define SSD1306_SETDISPLAYOFFSET 0xD3
+#define SSD1306_SETCOMPINS 0xDA
+#define SSD1306_SETVCOMDETECT 0xDB
+#define SSD1306_SETDISPLAYCLOCKDIV 0xD5
+#define SSD1306_SETPRECHARGE 0xD9
+#define SSD1306_NOP 0xE3
+
+static const byte display_init_cmds[] = {
+  SSD1306_DISPLAYOFF,
+  SSD1306_SETDISPLAYCLOCKDIV, 0x80,  // the suggested ratio 0x80
+  SSD1306_SETMULTIPLEX, 0x1F,        // ratio 32
+  SSD1306_SETDISPLAYOFFSET,0x0,      // no offset
+  SSD1306_SETSTARTLINE | 0x0,        // line #0
+  SSD1306_CHARGEPUMP, 0x14,          // internal vcc
+  SSD1306_MEMORYMODE, 0x02,          // page mode
+  SSD1306_SEGREMAP | 0x0,            // column 0 mapped to SEG0
+  SSD1306_COMSCANINC,                // column scan direction not reversed
+  SSD1306_SETCOMPINS, 0x02,          // sequential COM pins, disable remap
+  SSD1306_SETCONTRAST, 0x7F,         // contrast level 127
+  SSD1306_SETPRECHARGE, 0xF1,        // pre-charge period (1, 15)
+  SSD1306_SETVCOMDETECT, 0x40,       // vcomh regulator level-
+  // SSD1306_DISPLAYALLON_RESUME,
+  SSD1306_DISPLAYALLON,
+  SSD1306_NORMALDISPLAY,
+  SSD1306_DISPLAYON,
+};
+
+static void display_send_byte(byte d)
+{
+  while (!LL_I2C_IsActiveFlag_TXE(I2C2))
+    ;
+  LL_I2C_TransmitData8(I2C2, d);
+}
+
+static void display_cmd(byte cmd)
+{
+  LL_I2C_GenerateStartCondition(I2C2);
+  while (!LL_I2C_IsActiveFlag_SB(I2C2))
+    ;
+  LL_I2C_TransmitData8(I2C2, 0x78);            // Address
+  while (!LL_I2C_IsActiveFlag_ADDR(I2C2))
+    ;
+  LL_I2C_ClearFlag_ADDR(I2C2);
+  display_send_byte(0x00);                     // Will send a command
+  display_send_byte(cmd);
+  LL_I2C_GenerateStopCondition(I2C2);
+}
+
+static void display_data_start(void)
+{
+  LL_I2C_GenerateStartCondition(I2C2);
+  while (!LL_I2C_IsActiveFlag_SB(I2C2))
+    ;
+  LL_I2C_TransmitData8(I2C2, 0x78);            // Address
+  while (!LL_I2C_IsActiveFlag_ADDR(I2C2))
+    ;
+  LL_I2C_ClearFlag_ADDR(I2C2);
+  display_send_byte(0x40);                     // Will send data
+}
+
+static void display_data(byte d)
+{
+  display_send_byte(d);
+}
+
+static void display_data_end(void)
+{
+  LL_I2C_GenerateStopCondition(I2C2);
+}
+
+void display_init(void)
+{
+  for (uint i=0; i < sizeof(display_init_cmds); i++)
+    display_cmd(display_init_cmds[i]);
+
+  for (uint p=0; p<4; p++)
+    {
+      display_cmd(SSD1306_SETSTARTPAGE + p);
+      display_cmd(SSD1306_SETHIGHCOLUMN);
+      display_cmd(SSD1306_SETLOWCOLUMN);
+      display_data_start();
+      for (uint i=0; i<128; i++)
+       {
+         byte x = 0xaa;
+         // x = Gentium23x32[(23*4+1)*(i/23) + 1 + 4*(i%23) + p];
+         display_data(x);
+       }
+      display_data_end();
+    }
+}
+
+void display_counter(uint cnt)
+{
+#if 0
+  byte d[5];
+  for (uint i=0; i<5; i++)
+    {
+      d[4-i] = cnt % 10;
+      cnt /= 10;
+    }
+
+  for (uint p=0; p<4; p++)
+    {
+      display_cmd(SSD1306_SETSTARTPAGE + p);
+      display_cmd(SSD1306_SETHIGHCOLUMN);
+      display_cmd(SSD1306_SETLOWCOLUMN);
+      display_data_start();
+      for (uint i=0; i<5; i++)
+       {
+         for (uint j=0; j<23; j++)
+           {
+             byte x = Gentium23x32[(23*4+1)*d[i] + 1 + 4*j + p];
+             display_data(x);
+           }
+         display_data(0);
+         display_data(0);
+         display_data(0);
+       }
+      display_data_end();
+    }
+#endif
+}

diff --git a/Src/main.c b/Src/main.c
index 1810399209057f4e002d6337bc2436feb19391c8..241e3f5639dc0d56184f0e18edd20f7e12b53663 100644 (file)
--- a/Src/main.c
+++ b/Src/main.c
@@ -41,6 +41,7 @@
 #include "main.h"
 #include "stm32f1xx_hal.h"
 #include "usb.h"
+#include "app.h"
 
 /* USER CODE BEGIN Includes */
 
@@ -118,6 +119,7 @@ int main(void)
   MX_I2C2_Init();
   MX_USB_PCD_Init();
   /* USER CODE BEGIN 2 */
+  display_init();
   usb_start(&usb);
 
   /* USER CODE END 2 */
@@ -127,11 +129,13 @@ int main(void)
   int cnt = 0;
   while (1)
   {
+    debug_printf("Counter = %d\n", cnt);
+    display_counter(cnt);
     LL_GPIO_SetOutputPin(LED_GPIO_Port, LED_Pin);
     LL_mDelay(500);
     LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
     LL_mDelay(500);
-    debug_printf("Counter = %d\n", cnt++);
+    cnt++;
 
   /* USER CODE END WHILE */
 
@@ -261,7 +265,7 @@ static void MX_I2C2_Init(void)
     /**I2C Initialization 
     */
   I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
-  I2C_InitStruct.ClockSpeed = 400000;
+  I2C_InitStruct.ClockSpeed = 100000;
   I2C_InitStruct.DutyCycle = LL_I2C_DUTYCYCLE_2;
   I2C_InitStruct.OwnAddress1 = 0;
   I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;

diff --git a/Src/usb.c b/Src/usb.c
index c6867da79b8a7bec04c45e0c1abcf9642d741c57..ffac01d0e768ac94c08786519b0dc0bd52d95d6e 100644 (file)
--- a/Src/usb.c
+++ b/Src/usb.c
@@ -27,7 +27,7 @@ void usb_ctl_send_status(struct usb *usb)
 {
   usb_debug("Control send: status\n");
   usb->ep0_state = USB_EP0_STATUS_IN;
-  usb_ep_transmit(usb, 0x00, NULL, 0);
+  usb_ep_send(usb, 0x00, NULL, 0);
 }
 
 void usb_ctl_recv_status(struct usb *usb)
@@ -42,7 +42,7 @@ void usb_ctl_send_data(struct usb *usb, const byte *data, uint len)
   usb->ep0_state = USB_EP0_DATA_IN;
   usb->ep0_total_length = len;
   usb->ep0_remaining_length = len;
-  usb_ep_transmit(usb, 0x00, data, len);
+  usb_ep_send(usb, 0x00, data, len);
 }
 
 void usb_ctl_recv_data(struct usb *usb, byte *data, uint len)
@@ -51,7 +51,7 @@ void usb_ctl_recv_data(struct usb *usb, byte *data, uint len)
   usb->ep0_state = USB_EP0_DATA_OUT;
   usb->ep0_total_length = len;
   usb->ep0_remaining_length = len;
-  usb_ep_transmit(usb, 0x00, data, len);
+  usb_ep_send(usb, 0x00, data, len);
 }
 
 static void usb_ctl_send_byte(struct usb *usb, byte data)
@@ -460,7 +460,7 @@ void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
       if (usb->ep0_remaining_length > ep->maxpacket)
        {
          usb->ep0_remaining_length -= ep->maxpacket;
-         usb_ep_transmit(usb, 0x00, ep->xfer_buff, usb->ep0_remaining_length);
+         usb_ep_send(usb, 0x00, ep->xfer_buff, usb->ep0_remaining_length);
          usb_ep_receive(usb, 0x00, NULL, 0);
        }
       else if (usb->ep0_total_length && usb->ep0_total_length % ep->maxpacket == 0 && usb->ep0_total_length < usb->ep0_setup_data_length)
@@ -470,7 +470,7 @@ void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
           *  or by reaching the answer size requested in the setup packet. Send an empty final packet
           *  if needed.
           */
-         usb_ep_transmit(usb, 0x00, NULL, 0);
+         usb_ep_send(usb, 0x00, NULL, 0);
          usb->ep0_setup_data_length = 0;
          usb_ep_receive(usb, 0x00, NULL, 0);
        }