[](https://img.shields.io/badge/C%2B%2B-11%-blue.svg)
[PayPal.Me Donate](https://paypal.me/AvanVught?locale.x=nl_NL)
# GD32F407RE Bootloader TFTP
This bootloader will install your application by means of the TFTP protocol. There is no need to change your application code.
Per default DHCP is used for obtaining the ip-address.
The bootloader is active during reset of the board:
* When the `KEY_BOOTLOADER_TFTP_GPIO_PINx` is pressed. Which is defined in file:
* lib-gd32/include/board/bw_opidmx4.h
* lib-gd32/include/board/dmx4.h
* lib-gd32/include/board/gd32f407r.h
* When `bkp_data_read(BKP_DATA_1) == 0xA5A5`. This is set in your application by means of human readable UDP messages. See for more information: [https://www.gd32-dmx.org/bootloader.html](https://www.gd32-dmx.org/bootloader.html). There is also a sample Java UI application available for working with the UDP messages: [https://github.com/vanvught/GD32F-Firmware-Update-UI](https://github.com/vanvught/GD32F-Firmware-Update-UI)
Otherwise the bootloader will directly jump to your application. With the snippet:
// 8. Call the reset handler
const uint32_t* reset_p = (uint32_t *)(FLASH_BASE + OFFSET_UIMAGE + 4);
asm volatile ("bx %0;" : : "r"(*reset_p));
The bootloader can be installed with the tools supplied by GigaDevice -> [http://www.gd32mcu.com/en/download/7?kw=GD32F4](http://www.gd32mcu.com/en/download/7?kw=GD32F4)
The limitation for the firmware file to be uploaded is given by the RAM available. For example, the MCU on [https://github.com/vanvught/GD32FxxR-dev-board](https://github.com/vanvught/GD32FxxxR-dev-board) is the [GD32F407RE](https://www.gigadevice.com/microcontroller/gd32f407re6/). With the 128K RAM we have the firmware file size limit of 106K.
See also [https://www.gd32-dmx.org/bootloader.html](https://www.gd32-dmx.org/bootloader.html)
File: `flashcodeinstall.h`
# elif defined (BOARD_GD32F407RE)
# define OFFSET_UIMAGE 0x008000 // 32K
# define FIRMWARE_MAX_SIZE (106 * 1024) // 106K
# elif defined (BOARD_BW_OPIDMX4)
# define OFFSET_UIMAGE 0x008000 // 32K
# define FIRMWARE_MAX_SIZE (106 * 1024) // 106K
# elif defined (BOARD_DMX4)
# define OFFSET_UIMAGE 0x008000 // 32K
# define FIRMWARE_MAX_SIZE (106 * 1024) // 106K
The change to be made in your build configuration is in the file `gd32f407re_flash.ld `.
MEMORY
{
FLASH (rx) : ORIGIN = 0x08008000, LENGTH = 106K
TCMSRAM (rw) : ORIGIN = 0x10000000, LENGTH = 64K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
RAMADD (xrw) : ORIGIN = 0x20030000, LENGTH = 0
BKPSRAM (rw) : ORIGIN = 0x40024000, LENGTH = 4K
}
The `FLASH ORIGIN` must match the `OFFSET_UIMAGE` from the bootloader file `flashcodeinstall.h`
The code for the bootloader is a fork from [https://github.com/vanvught/rpidmx512](https://github.com/vanvught/rpidmx512). In order to reduce the memory footprint, some functions are not available.
Bootloader_with_TFTP_Server_GD32F407RE-Bootloader-TFTP.zip （472个子文件） 
algorithm 2KB gd32f4xx_enet.c 149KB gd32f4xx_timer.c 87KB gd32f4xx_exmc.c 56KB gd32f4xx_rcu.c 49KB gd32f4xx_adc.c 49KB gd32f4xx_rtc.c 46KB gd32f4xx_can.c 40KB gd32f4xx_dma.c 36KB gd32f4xx_usart.c 34KB gd32f4xx_fmc.c 31KB gd32f4xx_spi.c 29KB gd32f4xx_i2c.c 28KB system_gd32f4xx.c 28KB gd32f4xx_sdio.c 28KB gd32f4xx_ipa.c 26KB gd32f4xx_tli.c 24KB gd32f4xx_dac.c 20KB gd32f4xx_gpio.c 15KB gd32f4xx_ctc.c 13KB gd32f4xx_pmu.c 11KB gd32f4xx_dci.c 10KB printf.c 10KB gd32f4xx_dbg.c 8KB gd32f4xx_exti.c 8KB console.c 8KB gd32f4xx_syscfg.c 8KB console.c 7KB gd32f4xx_misc.c 7KB malloc.c 6KB gd32f4xx_fwdgt.c 5KB gd32_uart0.c 5KB gd32f4xx_wwdgt.c 5KB gd32f4xx_trng.c 5KB gd32f4xx_crc.c 4KB strtok.c 4KB gd32f4xx_iref.c 4KB time.c 3KB console.c 3KB time.c 2KB udp_send.c 2KB assert.c 2KB debug_dump.c 2KB inet_aton.c 2KB asctime.c 2KB gd32_uart0.c 2KB gd32_uart0.c 2KB net.c 2KB console.c 2KB debug_print_bits.c 2KB systick.c 2KB random.c 2KB puts.c 1KB putchar.c 1KB memset.c 958B memmove.c 283B memcpy.c 219B cassert 1KB cctype 1KB cmath 1KB lcd_font.cpp 52KB tcp.cpp 32KB remoteconfig.cpp 31KB ssd1306.cpp 19KB fmc_operation.cpp 14KB dhcp.cpp 11KB gd32_uart.cpp 11KB network.cpp 10KB spi_flash.cpp 9KB tftpdaemon.cpp 9KB ssd1311.cpp 9KB configstore.cpp 9KB igmp.cpp 9KB networkparams.cpp 8KB emac.cpp 8KB hwclockrtc.cpp 8KB udp.cpp 8KB hd44780.cpp 8KB hardware.cpp 7KB gd32_i2c.cpp 7KB arp.cpp 7KB flashcode.cpp 7KB remoteconfigstatic.cpp 6KB net_phy.cpp 6KB remoteconfigparams.cpp 6KB gd32_spi_dma_i2s.cpp 6KB paint.cpp 6KB net.cpp 6KB gd32_spi.cpp 6KB hardware.cpp 5KB remoteconfigjson.cpp 5KB ili9341.cpp 5KB display.cpp 5KB main.cpp 5KB usb_host_msc.cpp 4KB flashcode.cpp 4KB net_phy.cpp 4KB i2s_psc_config_dump.cpp 4KB hwclock.cpp 4KB gd32_adc.cpp 4KB共 472 条
- 1
- 2
- 3
- 4
- 5
资源评论
好家伙VCC
- 粉丝: 1934
- 资源: 9137
