在STM32上与外设进行通信时,时序校准成为一个挑战。以下是我尝试调整时序参数的部分代码:
// SPI配置
hspi.Instance = SPI1;
hspi.Init.Mode = SPI_MODE_MASTER;
hspi.Init.Direction = SPI_DIRECTION_2LINES;
hspi.Init.DataSize = SPI_DATASIZE_8BIT;
hspi.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi.Init.NSS = SPI_NSS_SOFT;
hspi.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_64;
hspi.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi.Init.TIMode = SPI_TIMODE_DISABLE;
hspi.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi) != HAL_OK) {
Error_Handler();
}
请有经验的开发者分享一些建议,特别是如何调整这些参数以优化STM32外设通信的时序校准。
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