你好:
我按照DLP光机厂家给的电路设计方案做的PCB板子,430配置程序也是厂家的,在他们的板子上可以正常使用,下载到我的板子上,DLPA1000的和DLPC2607的供电电压都正常,但是2607的LED_SEL0和LED_SEL1输出电压都为低电平,而原厂的输出电压为1V和1.27V。RESETZ电压为2.4V,INT电压为3.3V
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LED, DMD连接是否正常? DMD SPI通讯?还有GPIO4_INTF的波型?我请光机厂工程师协助一下.
DLPC2607, PAD1000系统的启动时序是:
1.检查SPI FLASH;
2. 根据composer设置配置DLPC2607 的register;
3. 通过SPI(含chipselect)通讯检查PAD1000是否初步正常;
4. DMD配置(SPI)
5.DLPC2607和DMD的匹配性检查;
6.从FLASH读sequence配置;
7.系统自检;
8.配置GPIO口;
9.PAD1000 init(SPI)
10.DLPC2607 output LED0_1 and PAD1000 output current(LED) and enable DMD.
每一步可能导致系统不工作.DLPC2607(内挂8051 MCU).