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/*
* The MIT License (MIT)
*
* Copyright (c) 2020 MM32 SE TEAM
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* This file is part of the TinyUSB stack.
*/
#include "mm32_device.h"
#include "hal_conf.h"
#include "tusb.h"
#include "../board.h"
//--------------------------------------------------------------------+
// Forward USB interrupt events to TinyUSB IRQ Handler
//--------------------------------------------------------------------+
void OTG_FS_IRQHandler (void)
{
tud_int_handler(0);
}
void USB_DeviceClockInit (void)
{
/* Select USBCLK source */
// RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_Div1);
RCC->CFGR &= ~(0x3 << 22);
RCC->CFGR |= (0x1 << 22);
/* Enable USB clock */
RCC->AHB2ENR |= 0x1 << 7;
}
//--------------------------------------------------------------------+
// MACRO TYPEDEF CONSTANT ENUM DECLARATION
//--------------------------------------------------------------------+
// LED
void board_led_write (bool state);
extern u32 SystemCoreClock;
const int baudrate = 115200;
void board_init (void)
{
// usb clock
USB_DeviceClockInit();
if ( SysTick_Config(SystemCoreClock / 1000) )
{
while ( 1 )
;
}
NVIC_SetPriority(SysTick_IRQn, 0x0);
// LED
GPIO_InitTypeDef GPIO_InitStruct;
RCC_AHBPeriphClockCmd(RCC_AHBENR_GPIOA, ENABLE);
GPIO_StructInit(&GPIO_InitStruct);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource15, GPIO_AF_15); //Disable JTDI AF to AF15
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_15;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOA, &GPIO_InitStruct);
board_led_write(true);
// UART
UART_InitTypeDef UART_InitStruct;
RCC_APB2PeriphClockCmd(RCC_APB2ENR_UART1, ENABLE); //enableUART1,GPIOAclock
RCC_AHBPeriphClockCmd(RCC_AHBENR_GPIOA, ENABLE); //
//UART initialset
GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_7);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_7);
UART_StructInit(&UART_InitStruct);
UART_InitStruct.UART_BaudRate = baudrate;
UART_InitStruct.UART_WordLength = UART_WordLength_8b;
UART_InitStruct.UART_StopBits = UART_StopBits_1; //one stopbit
UART_InitStruct.UART_Parity = UART_Parity_No; //none odd-even verify bit
UART_InitStruct.UART_HardwareFlowControl = UART_HardwareFlowControl_None; //No hardware flow control
UART_InitStruct.UART_Mode = UART_Mode_Rx | UART_Mode_Tx; // receive and sent mode
UART_Init(UART1, &UART_InitStruct); //initial uart 1
UART_Cmd(UART1, ENABLE); //enable uart 1
//UART1_TX GPIOA.9
GPIO_StructInit(&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStruct);
//UART1_RX GPIOA.10
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOA, &GPIO_InitStruct);
}
//--------------------------------------------------------------------+
// Board porting API
//--------------------------------------------------------------------+
void board_led_write (bool state)
{
state ? (GPIO_ResetBits(GPIOA, GPIO_Pin_15)) : (GPIO_SetBits(GPIOA, GPIO_Pin_15));
}
uint32_t board_button_read (void)
{
return 0;
}
int board_uart_read (uint8_t *buf, int len)
{
(void) buf;
(void) len;
return 0;
}
int board_uart_write (void const *buf, int len)
{
const char *buff = buf;
while ( len )
{
while ( (UART1->CSR & UART_IT_TXIEN) == 0 )
; //The loop is sent until it is finished
UART1->TDR = (*buff & 0xFF);
buff++;
len--;
}
return len;
}
#if CFG_TUSB_OS == OPT_OS_NONE
volatile uint32_t system_ticks = 0;
void SysTick_Handler (void)
{
system_ticks++;
}
uint32_t board_millis (void)
{
return system_ticks;
}
#endif
// Required by __libc_init_array in startup code if we are compiling using
// -nostdlib/-nostartfiles.
void _init(void)
{
}
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