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单纯只读ID，读出来得是FFFFFFF,不带协议栈，板子是V7,FMC配置都是使用驱动配置得。
static void DM9K_CtrlLinesConfig(void)
{
/*
PD0/FMC_D2
PD1/FMC_D3
PD4/FMC_NOE ---- 读控制信号，OE = Output Enable ， N 表示低有效
PD5/FMC_NWE -XX- 写控制信号，AD7606 只有读，无写信号
PD8/FMC_D13
PD9/FMC_D14
PD10/FMC_D15
PD14/FMC_D0
PD15/FMC_D1
PE7/FMC_D4
PE8/FMC_D5
PE9/FMC_D6
PE10/FMC_D7
PE11/FMC_D8
PE12/FMC_D9
PE13/FMC_D10
PE14/FMC_D11
PE15/FMC_D12
PG0/FMC_A10 --- 和主片选FMC_NE2一起译码
PG1/FMC_A11 --- 和主片选FMC_NE2一起译码
PG9/FMC_NE2 --- 主片选（OLED, 74HC574, DM9000, AD7606）
PF0/FMC_A0 ---- RS
*/
GPIO_InitTypeDef gpio_init_structure;
/* 使能 GPIO时钟 */
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOI_CLK_ENABLE();
/* 使能FMC时钟 */
__HAL_RCC_FMC_CLK_ENABLE();
/* 设置 GPIOD 相关的IO为复用推挽输出 */
gpio_init_structure.Mode = GPIO_MODE_AF_PP;
gpio_init_structure.Pull = GPIO_PULLUP;
gpio_init_structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;//GPIO_SPEED_FREQ_VERY_HIGH
gpio_init_structure.Alternate = GPIO_AF12_FMC;
/* 配置GPIOD */
gpio_init_structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_4 | GPIO_PIN_5 |
GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_14 |
GPIO_PIN_15;
HAL_GPIO_Init(GPIOD, &gpio_init_structure);
/* 配置GPIOE */
gpio_init_structure.Pin = GPIO_PIN_7 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 |
GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14 |
GPIO_PIN_15;
HAL_GPIO_Init(GPIOE, &gpio_init_structure);
/* 配置GPIOG */
gpio_init_structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_9;
HAL_GPIO_Init(GPIOG, &gpio_init_structure);
/* 配置GPIOH */
gpio_init_structure.Pin = GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12
| GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
HAL_GPIO_Init(GPIOH, &gpio_init_structure);
/* 配置GPIOI */
gpio_init_structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_6
| GPIO_PIN_7 | GPIO_PIN_9 | GPIO_PIN_10;
HAL_GPIO_Init(GPIOI, &gpio_init_structure);
/* 配置GPIOF */
gpio_init_structure.Pin = GPIO_PIN_0;
HAL_GPIO_Init(GPIOF, &gpio_init_structure);
}
static void DM9K_FSMCConfig(void)
{
SRAM_HandleTypeDef hsram = {0};
FMC_NORSRAM_TimingTypeDef SRAM_Timing = {0};
hsram.Instance = FMC_NORSRAM_DEVICE;
hsram.Extended = FMC_NORSRAM_EXTENDED_DEVICE;
SRAM_Timing.AddressSetupTime = 4;
SRAM_Timing.AddressHoldTime = 1;
SRAM_Timing.DataSetupTime = 2;
SRAM_Timing.BusTurnAroundDuration = 3;
SRAM_Timing.CLKDivision = 2;
SRAM_Timing.DataLatency = 2;
SRAM_Timing.AccessMode = FMC_ACCESS_MODE_A;
hsram.Init.NSBank = FMC_NORSRAM_BANK1;
hsram.Init.DataAddressMux = FMC_DATA_ADDRESS_MUX_DISABLE;
hsram.Init.MemoryType = FMC_MEMORY_TYPE_SRAM;
hsram.Init.MemoryDataWidth = FMC_NORSRAM_MEM_BUS_WIDTH_32; /* 32位总线宽度 */
hsram.Init.BurstAccessMode = FMC_BURST_ACCESS_MODE_DISABLE;
hsram.Init.WaitSignalPolarity = FMC_WAIT_SIGNAL_POLARITY_LOW;
hsram.Init.WaitSignalActive = FMC_WAIT_TIMING_BEFORE_WS;
hsram.Init.WriteOperation = FMC_WRITE_OPERATION_ENABLE;
hsram.Init.WaitSignal = FMC_WAIT_SIGNAL_DISABLE;
hsram.Init.ExtendedMode = FMC_EXTENDED_MODE_DISABLE;
hsram.Init.AsynchronousWait = FMC_ASYNCHRONOUS_WAIT_DISABLE;
hsram.Init.WriteBurst = FMC_WRITE_BURST_DISABLE;
hsram.Init.ContinuousClock = FMC_CONTINUOUS_CLOCK_SYNC_ONLY;
/* 初始化SRAM控制器 */
if(HAL_SRAM_Init(&hsram, &SRAM_Timing, &SRAM_Timing) != HAL_OK)
{
/* 初始化错误 */
Error_Handler();
}
}
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发表于 2025-11-3 17:13:07
楼主
发表于 2025-11-4 09:15:16
