Hi,
I am using Error inject Module to inject double-bit to SRAM_L,and many strange bugs have occurred:
1:When I inject double-bit error to SRAML,sometimes it cannot trigger double-bit error but single-bit error and enters single fault handler!And reset is useless it just keeps going into single fault handler.The solution is to restart the computer or inject the single-bit error to SRAML again after injecting double-bit error to SRAML:
``
/* SRAM_L */
EIM->EICHDn[0].WORD0 = 0x00000000; /* CHKBIT[31-25] remain unmodified */
EIM->EICHDn[0].WORD1 = 0x00000001; /* B0_3DATA_MASK[0] bits of the read data bus are inverted */
EIM->EICHEN |= EIM_EICHEN_EICH0EN_MASK; /* Error Injection Channel 0 Enable (SRAM_L)*/
EIM->EIMCR |= EIM_EIMCR_GEIEN_MASK; /* Global Error Injection Enable */
(void)EIM->EIMCR; /* Read-after_write */
Gu32_FS_read = *(uint32_t*)0x1FFFFFF0;
``
2:The second bug is that sometimes I cannot trigger singe fault handler, and I have enable the status and control register:
``
//ERM status register
ERM->SR0 = ERM_SR0_SBC0_MASK | /*SRAM_L Single-bit Correction flag*/
ERM_SR0_NCE0_MASK; /*SRAM_L Non-Correctable Error flag*/
// ERM CR
ERM->CR0 = ERM_CR0_ESCIE0_MASK | /*Enable SRAM_L Single Correction Interrupt Notification*/
ERM_CR0_ENCIE0_MASK; /*Enable SRAM_L Non-Correctable Interrupt Notification*/
``
