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fix(vd960DBN): SPI 串扰复位软件缓解 — 降时钟+缓边沿, 恢复功能

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实验闭环: Flash/SPI 全禁用后设备稳定 (BLE/WCHNET/TCP 全正常)
→ SPI 操作触发复位+乱码实锤; 崩点在 offlog_boot 写 32B (不擦除)
→ 排除电流, 判定 SPI 信号串扰 NRST(复位) + 调试线(乱码)

缓解: storage.c GPIO 50MHz→10MHz 缓边沿 + SPI 分频 4→16 降时钟
恢复: peripheral_main.c 两个隔离块改 #if 0 (Flash + UART2 正常)
硬件根治(待现场): NRST 加 100nF 电容 / SPI 走线远离 NRST / 串阻 22Ω
This commit is contained in:
wangfq
2026-08-12 19:27:47 +08:00
parent 22224416a3
commit 9053831f27
2 changed files with 13 additions and 11 deletions
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vd960DBN/BLE/OnlyUpdateApp_Peripheral/APP/storage.c
+4 -4
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@@ -90,13 +90,13 @@ void SPI_Flash_Init(void)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_SetBits(GPIOA, GPIO_Pin_4);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
@@ -105,7 +105,7 @@ void SPI_Flash_Init(void)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
@@ -114,7 +114,7 @@ void SPI_Flash_Init(void)
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_16;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI1, &SPI_InitStructure);