通过LPC2294HBD/01想烧写外部flash.发现烧写不正常.可以读可以擦,读擦都通过JFLASH实现的.疑惑如下.
1.LPC2294 P3[27] WE 写使能为何配置完寄存器还是无效?
2.上电之后P3[27]电压为2.3V.但是ARM端片选使能(CSO P1[0])和OE(P1[1])电压为3.3V.
3.但是P3[27]可以人为配置成通用IO,通用IO之后可以输出高低点平,0和3.3V.
报错为: Programming failed @ address 0x80000000(item verification error)
Failed to program target
Failed to program and verify target
希望能尽快得到答复,谢谢您.
The App. Note AN10600 may useful for you.
Here is the documentation page of LPC2200.
16/32-bit ARM microcontroller with CAN, 10-bit ADC and external memory interface|NXP
App. Note.