XMC4800 Bootloader 示例
以下是一个基本的UART Bootloader示例代码结构：
#include "xmc_flash.h"
#include "xmc_uart.h"
// UART配置
#define UART_BAUDRATE 115200
// 固件存储地址
#define FIRMWARE_START_ADDRESS 0x08008000
void UART_Init(void) {
XMC_UART_CH_CONFIG_t uart_config;
uart_config.baudrate = UART_BAUDRATE;
uart_config.data_bits = 8U;
uart_config.stop_bits = 1U;
uart_config.parity_mode = XMC_USIC_CH_PARITY_MODE_NONE;
XMC_UART_CH_Init(XMC_UART0_CH0, &uart_config);
XMC_UART_CH_Start(XMC_UART0_CH0);
}
void Flash_Write(uint32_t address, uint8_t* data, uint32_t length) {
// 解锁Flash
XMC_FLASH_Unlock();
XMC_FLASH_EraseSector(address);
XMC_FLASH_ProgramPage(address, data);
// 锁定Flash
XMC_FLASH_Lock();
}
void Bootloader_Main(void) {
uint8_t buffer[256];
uint32_t address = FIRMWARE_START_ADDRESS;
uint32_t length;
UART_Init();
while (1) {
// 接收固件数据
length = UART_Receive(buffer, sizeof(buffer));
if (length > 0) {
Flash_Write(address, buffer, length);
address += length;
}
}
}
int main(void) {
Bootloader_Main();
return 0;
}
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