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test(vd960DBN): SPI 分频 16→128 极慢版 — 验证频率无关性

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降频4倍(9053831)后乱码字节不变+仍复位 → 非频率相关串扰
疑似 MOSI(PA7) 写数据与 NRST/调试线物理共线/短路 (乱码=写数据错位采样)
分频128(~0.5-1MHz): 若仍崩 → 100%物理层问题, 软件无解, 必须硬件修
硬件测量: 断电测 PA5/PA7 与 NRST 导通电阻(应无穷大); 查原理图 SPI 走线
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wangfq
2026-08-12 19:31:49 +08:00
parent 9053831f27
commit 8bb576111b
1 changed files with 1 additions and 1 deletions
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vd960DBN/BLE/OnlyUpdateApp_Peripheral/APP/storage.c
+1 -1
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@@ -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_16;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_128;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI1, &SPI_InitStructure);