flashing programmer of 32bit MCU FR81S series : MB91F725RD

[AlLI_4166386]

There is little information about this MCU, I need to flash it through RS232 or programmer. So where is the rs232 programmer software? thanks!

[HongyanW_86]

FLASH MCU Programmer for FR:

https://www.cypress.com/documentation/software-and-drivers/flash-mcu-programmer-1

Best regards,

Amy Wang

[AlLI_4166386]

OK

then how could I secure the content of the firmware?

[HongyanW_86 · Accepted solution]

//CY91570 Series FR Family FR81S Hardware Manual, Document Number: 002-05574 Rev. *B

"45.5.9.2 Flash Security Setting Method

The flash security setting method is shown below. When reset is input and released after writing 0x0001 to the flash security code area (see Figure 45-3), security is turned on. Once security has been turned on, the security is not turned off unless the entire flash memory area is erased."

Please kindly refer to CY91570 Hardware Manual for more information about Flash Security.

https://www.cypress.com/documentation/technical-reference-manuals/cy91570-series-fr-family-fr81s-har...

Best regards,

Amy Wang

[AlLI_4166386]

好人做到底，再帮我找下MB90F497G的硬件手册，不知如何感谢才好 ：）

[HongyanW_86]

MB90F497G是很老的MCU了，现在我们不推荐给客户设计新的应用，Cypress官方网站上也没有这颗芯片的数据手册或硬件使用手册。请搜索其它网站上的作参考。

Best regards,

Amy Wang