Flash write API

When you post your question in English language there will be quite more people to help you.

Bob

1. I haven't looked at the code specifically, but there should be separate erase/write functions for what you are asking. If not, then it is internal to the cypress API library.

2. There is a sequence of programming impulses that will erase the entire chip, but that is meant more for an external programmer. Perhaps utilizing an external programmer would be the best for achieving your goal?

与PSoC3/5 不同，PSoC4 的 FlashWriteRow() API 擦除和烧写是无法分开的，因为固化在 SROM 中的调用函数就是这样定义的，先擦除后烧写。 如果客户需要重新烧写某一行的部分内容的话，可以先把该行的数据读出，更换部分内容然后再执行行烧写动作。

SROM 为FLASH 操作定义了 EraseAll() 函数，但是该动作只能由外部通过 DAP 接口来操作，芯片 FW 层是无法支持这个动作的。因为 FALSH EraseALL 不仅包括清除 FLASH 本身的数据，还包括一些 protection 信息。

Note: 目前这个论坛国外的活动用户比国内多，使用英文提问效率会更高一些。如果有困难，使用中文也是 OK 的，只是参与的人数少一些。

uint8 CyEnterCriticalSection(void); The function prevents interrupts being executed by setting PRIMASK register and

returns previous state.

void  CyExitCriticalSection(uint8 savedIntrStatus);The function restores the interrupt state as it was before CyEnterCriticalSection()

function call.

Yes, it is a blocking function, the chip only execute next step until the flash finished write.