TI中文支持网Part Number:C2000WARE
hello:
when i config about the 2800154 ECC function.there are something weird.
at first, ECC on RAM is working well.
but for ECC on FLASH,acorrding to the TMS320F280015x TRM:
When the ERR_CNT value equals ERR_THRESHOLD+1, and a single bit error occurs, the Flash module sets
the SINGLE_ERR_INT flag and generates an interrupt signal. To enable propagation of the generated interrupt
pulse to the CPU, the user application must enable the FLASH_CORRECTABLE_ERROR channel in the C28
Peripheral Interrupt Expansion module (PIE). The interrupt signal remains high until the application clears the
SINGLE_ERR_INTFLG flag by writing to the SINGLE_ERR_INTCLR bit in the ERR_INTCLR register. The Flash
module cannot generate any further FLASH_CORRECTABLE_ERROR interrupt signals to the PIE/CPU until
SINGLE_ERR_INTFLG is cleared, as this is an edge-based interrupt.
in the 280015x TRM， i cannot found any register including SINGLE_ERR_INT and SINGLE_ERR_INTCLR.
the 2800154 FLASH ECC register is so poor as below
and there is no PIE INT named FLASH_CORRECTABLE_ERROR
for FLASH Uncorrectable Error , the TRM said that as below:
When an uncorrectable error occurs, the Flash module sets the UNC_ERR_INTFLG bit and generates an
uncorrectable error interrupt. This uncorrectable error interrupt generates a non-maskable interrupt (NMI), if
enabled, in the CPU. If an uncorrectable error interrupt flag is not cleared by writing to the UNC_ERR_INTCLR
bit in the ERR_INTCLR register, the Flash module cannot generate new uncorrectable interrupt signals, as this is
an edge-based interrupt.
actually , i still can't found the ERR_INTCLR register, so i can't deteted the second NMI int.
i found that 280025 TRM support all the feature i mentioned above.
i want to know how to config the FLASH ecc in 280015x ？and I want to know if 2800154 do not support those feature, why i can find the information in the TRM .
THANKS
Vivian Gao：
您好
您看table7-7上面那段话，表7-7列出了FLASH_ECC_REGS寄存器的内存映射寄存器。表7-7中未列出的所有寄存器偏移地址应被视为保留位置，且寄存器内容不应被修改。有可能是因为不需要您改动所以没有更为详细的说明，您可以看看SDK里面有没有关于flash ecc的程序，然后看看ECC具体是怎么用的。
如果您依然想更详细的了解，我们建议您问一下英文论坛的资深工程师，他们有更多的资源，或许可以为您解答。
可以通过下方链接在英文论坛发帖：https://e2e.ti.com/p/addpost
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li xudong：
您好，我是认为既然在TRM中提到这个功能，就应该有对应的寄存器功能去设置。现在我没法找到这些寄存器，相反在280025系列芯片参考手册中是有的，280015系列是不是280025的阉割版？所以这块我现在不清楚如何去设置才是比较规范的。
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Vivian Gao：
如果您依然想更详细的了解，我们建议您问一下英文论坛的资深工程师，他们有更多的资源，或许可以为您解答。
可以通过下方链接在英文论坛发帖：https://e2e.ti.com/p/addpost
