STM32F373 USB prgram

You didnt tell which  board , usb hardware tested and working etc. -- so..?

+

Did you setup with cube usb-> device -> ??

1- Set PA12/PA11 -> Alternate function / High Speed / AF14

GPIOA->MODER = GPIOA->MODER | 0x02800000;

GPIOA->OSPEEDR = GPIOA->OSPEEDR | 0x03C00000; //Pins PA12-PA11 -> High speed

GPIOA->AFR[1] = GPIOA->AFR[1] | 0x000EE000; //Pins PA12-PA11 -> AF14 USB pins !!!!!

2- Set USB clock enable

RCC->APB1ENR = RCC->APB1ENR | 0x00800000; // enable USB clock

3- Clean USB Registers

4- Set USB->ADDR = USB->ADDR | 0x80; //Enable device

Theorically, now USB is ready to accept configure the EPns. But when i try to do it i can't change them.

Use same code with STM32F042 (but not config PA12/PA11 as alternate) and run properly.

Any Idea?

Thinks the same but theorically all clocks run as well

1-STM32F373VCT6

2-External clock 8.0Mhz

I create a project CubeIDE by board STM32373C-EVAL and usin default hardware config of the board and get same problem. Eps seems inhibed, can't not change with debug  (CubeIde) after MX_USB_PCD_Init function.

Thnaks a lot

Use STM32373C-EVAL board.

Create New STM32 project with this board in CUBEIde.

The CubeIDE then create a main.c code with all the Initializations.

Set a Breakpoint in While(1) line in order to stop program and access to USB registers. 

Normally after initialization of USB all registers are accessible. Via Debugg can modify ADDR but EPnRs can't modify.

This code is directly generate by CUBEIDE, I only stop in while(1) line (in main() function) and check the USB registers.

#include "main.h"

ADC_HandleTypeDef hadc1;

COMP_HandleTypeDef hcomp2;

CEC_HandleTypeDef hcec;

I2C_HandleTypeDef hi2c1;
SMBUS_HandleTypeDef hsmbus2;

I2S_HandleTypeDef hi2s1;

SDADC_HandleTypeDef hsdadc1;
SDADC_HandleTypeDef hsdadc2;

SPI_HandleTypeDef hspi3;

TSC_HandleTypeDef htsc;

UART_HandleTypeDef huart2;

PCD_HandleTypeDef hpcd_USB_FS;

uint8_t cec_receive_buffer[16];

int main(void)
{

SystemClock_Config();

/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_ADC1_Init();
MX_COMP2_Init();
MX_HDMI_CEC_Init();
MX_I2C1_Init();
MX_I2C2_SMBUS_Init();
MX_I2S1_Init();
MX_SDADC1_Init();
MX_SDADC2_Init();
MX_SPI3_Init();
MX_TSC_Init();
MX_USART2_UART_Init();
MX_USB_PCD_Init();
while (1)
{

}
}