小弟有个板子要搞一搞。。
2.4寸的lcd,标识型号FPC-T24QT10T2(搜不到。。。。)
37Pin,不带触摸(有上件位置没上),排除掉已知的pin之后,
剩下的pin非常像是FSMC驱动方式,包括NE1、D0~D15,NOE,NWE,A16都在,剩下一根我猜是reset
然后用确定没问题的(开发板可跑可驱动lcd)代码去试试
读出ID是0x0075
这就糊涂了 ,感觉是读错了,但是完全不知道怎么继续
贴下fsmc初始化和读ID代码:
- <span style="background-color: white;">void MX_FSMC_Init(void)
- {
- FSMC_NORSRAM_TimingTypeDef Timing;
-
- /** Perform the SRAM1 memory initialization sequence
- */
- hsram1.Instance = FSMC_NORSRAM_DEVICE;
- hsram1.Extended = FSMC_NORSRAM_EXTENDED_DEVICE;
- /* hsram1.Init */
- hsram1.Init.NSBank = FSMC_NORSRAM_BANK1;
- hsram1.Init.DataAddressMux = FSMC_DATA_ADDRESS_MUX_DISABLE;
- hsram1.Init.MemoryType = FSMC_MEMORY_TYPE_SRAM;
- hsram1.Init.MemoryDataWidth = FSMC_NORSRAM_MEM_BUS_WIDTH_16;
- hsram1.Init.BurstAccessMode = FSMC_BURST_ACCESS_MODE_DISABLE;
- hsram1.Init.WaitSignalPolarity = FSMC_WAIT_SIGNAL_POLARITY_LOW;
- hsram1.Init.WrapMode = FSMC_WRAP_MODE_DISABLE;
- hsram1.Init.WaitSignalActive = FSMC_WAIT_TIMING_BEFORE_WS;
- hsram1.Init.WriteOperation = FSMC_WRITE_OPERATION_ENABLE;
- hsram1.Init.WaitSignal = FSMC_WAIT_SIGNAL_DISABLE;
- hsram1.Init.ExtendedMode = FSMC_EXTENDED_MODE_DISABLE;
- hsram1.Init.AsynchronousWait = FSMC_ASYNCHRONOUS_WAIT_DISABLE;
- hsram1.Init.WriteBurst = FSMC_WRITE_BURST_DISABLE;
- /* Timing */
- #if 0
- Timing.AddressSetupTime = 2;
- Timing.AddressHoldTime = 15;
- Timing.DataSetupTime = 5;
- Timing.BusTurnAroundDuration = 0;
- Timing.CLKDivision = 16;
- Timing.DataLatency = 17;
- Timing.AccessMode = FSMC_ACCESS_MODE_A;
- #else
-
- Timing.AddressSetupTime = 10;
- Timing.AddressHoldTime = 10;
- Timing.DataSetupTime = 15;
- Timing.BusTurnAroundDuration = 10;
- Timing.CLKDivision = 16;
- Timing.DataLatency = 17;
- Timing.AccessMode = FSMC_ACCESS_MODE_B;
- #endif
- /* ExtTiming */
-
- if (HAL_SRAM_Init(&hsram1, &Timing, NULL) != HAL_OK)
- {
- Error_Handler();
- }
-
- /** Disconnect NADV
- */
-
- __HAL_AFIO_FSMCNADV_DISCONNECTED();
-
- }</span>
复制代码 读ID代码
- <span style="background-color: white;">uint16_t lcdReadReg(uint8_t LCD_Reg)
- {
- uint16_t d;
-
- *(__IO uint16_t*)(Bank1_LCD_C) = LCD_Reg;
- d = *(__IO uint16_t*)(Bank1_LCD_D);
-
- return d;
- }
-
- void LCD_Init(void)
- {
- lcdReset();
-
- // lcdWriteCmd(0x00, 0x0001);
- HAL_Delay(50); // delay 50 ms
- DeviceCode = lcdReadReg(0x0000);
- xprintf("LCD ID:0x%04x\r\n", DeviceCode); //打印LCD ID
- 。。。
- }</span>
复制代码
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