C55 Flash驱动程序FlashProgram和FlashErase IVOR1得到机器检查中断

大家好，

我在SPC570S40E1 mcu上使用C55闪存驱动程序。当尝试将数据从RAM写入任何低模块时，在调用FlashProgram函数后，我得到了机器检查中断。 FlashErase也会发生同样的事情。但是，如果我查看存储器位置，即使得到机器检查中断，我也可以看到数据被正确写入（或擦除）。

有趣的是，我可以编程和擦除8KB高块没问题，但所有低块都会产生这个问题。

代码是这样的
我写的是ssdConfig

我在擦除/写入之前调用flash_init（），utest_lock（），unblock_address_space（）函数，没有任何问题。

提前致谢



以下为原文

Hi all,

I am using the C55 Flash Drivers on the SPC570S40E1 mcu. When trying to write data from RAM to any of the low blocks, I get a Machine Check Interrupt after I call the function FlashProgram. The same thing happens with FlashErase as well. However, if I look at the memory locations, I can see that the data is correctly written (or erased) even though I get the machine check interrupt.

Funny thing is, I can program and erase the 8KB High blocks no problem, but all low blocks create this issue.

The code is like this

• #include "flash_ctrl.h"
• uint32_t flash_init(void)
• {
• pgmCtxData.pReqCompletionFn = FlashProgram;
• bcCtxData.pReqCompletionFn = BlankCheck;
• pvCtxData.pReqCompletionFn = ProgramVerify;
• returnCode = FlashInit( &ssdConfig );
• return returnCode;
• }
• uint32_t utest_lock(void)
• {
• returnCode = GetLock(&ssdConfig, C55_BLOCK_UTEST, &blkLockState);
• if (!(blkLockState & 0x00000001))
• returnCode = SetLock(&ssdConfig, C55_BLOCK_UTEST, LOCK_ALL_BLOCKS);
• return returnCode;
• }
• uint32_t unblock_address_space(void)
• {
• returnCode = SetLock(&ssdConfig, C55_BLOCK_LOW, UNLOCK_ALL_BLOCKS);
• returnCode = SetLock(&ssdConfig, C55_BLOCK_LARGE_FIRST, UNLOCK_ALL_BLOCKS);
• returnCode = SetLock(&ssdConfig, C55_BLOCK_HIGH, UNLOCK_ALL_BLOCKS);
• return returnCode;
• }
• uint32_t erase_block(MEM_BLOCK eraseBlock)
• {
• switch(eraseBlock){
• case LOW_BLOCK1_16K:
• lowBlockSelect = 0x00000002UL;
• midBlockSelect = 0;
• highBlockSelect = 0;
• nLargeBlockSelect.firstLargeBlockSelect = 0;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• case LOW_BLOCK2_16K:
• lowBlockSelect = 0x00000004UL;
• midBlockSelect = 0;
• highBlockSelect = 0;
• nLargeBlockSelect.firstLargeBlockSelect = 0;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• case LOW_BLOCK3_16K:
• lowBlockSelect = 0x00000008UL;
• midBlockSelect = 0;
• highBlockSelect = 0;
• nLargeBlockSelect.firstLargeBlockSelect = 0;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• case LOW_BLOCK4_16K:
• lowBlockSelect = 0x00000010UL;
• midBlockSelect = 0;
• highBlockSelect = 0;
• nLargeBlockSelect.firstLargeBlockSelect = 3;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• case LOW_BLOCK5_32K:
• lowBlockSelect = 0x00000020UL;
• midBlockSelect = 0;
• highBlockSelect = 0;
• nLargeBlockSelect.firstLargeBlockSelect = 0;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• case LOW_BLOCK6_32K:
• lowBlockSelect = 0x00000040UL;
• midBlockSelect = 0;
• highBlockSelect = 0;
• nLargeBlockSelect.firstLargeBlockSelect = 0;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• case LOW_BLOCK7_64K:
• lowBlockSelect = 0x00000080UL;
• midBlockSelect = 0;
• highBlockSelect = 0;
• nLargeBlockSelect.firstLargeBlockSelect = 0;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• case LOW_BLOCK8_64K:
• lowBlockSelect = 0x00000100UL;
• midBlockSelect = 0;
• highBlockSelect = 0;
• nLargeBlockSelect.firstLargeBlockSelect = 0;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• case LARGE_BLOCK9_128K:
• lowBlockSelect = 0;
• midBlockSelect = 0;
• highBlockSelect = 0;
• nLargeBlockSelect.firstLargeBlockSelect = 1;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• case LARGE_BLOCK10_128K:
• lowBlockSelect = 0;
• midBlockSelect = 0;
• highBlockSelect = 0;
• nLargeBlockSelect.firstLargeBlockSelect = 2;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• case HIGH_BLOCK0_8K:
• lowBlockSelect = 0;
• midBlockSelect = 0;
• highBlockSelect = 0x00000001UL;
• nLargeBlockSelect.firstLargeBlockSelect = 0;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• case HIGH_BLOCK1_8K:
• lowBlockSelect = 0;
• midBlockSelect = 0;
• highBlockSelect = 0x00000002UL;
• nLargeBlockSelect.firstLargeBlockSelect = 0;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• case HIGH_BLOCK2_8K:
• lowBlockSelect = 0;
• midBlockSelect = 0;
• highBlockSelect = 0x00000004UL;
• nLargeBlockSelect.firstLargeBlockSelect = 0;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• case HIGH_BLOCK3_8K:
• lowBlockSelect = 0;
• midBlockSelect = 0;
• highBlockSelect = 0x00000008;
• nLargeBlockSelect.firstLargeBlockSelect = 0;
• nLargeBlockSelect.secondLargeBlockSelect = 0;
• break;
• }
• returnCode = FlashErase( &ssdConfig, C55_ERASE_MAIN, lowBlockSelect, midBlockSelect, highBlockSelect, nLargeBlockSelect );
• if (returnCode == C55_OK)
• while (C55_INPROGRESS == FlashCheckStatus(&ssdConfig, C55_MODE_OP_ERASE, &opResult,&dummyCtxData)) {}
• return returnCode;
• }
• uint32_t blank_check(uint32_t dest, uint32_t size)
• {
• returnCode = BlankCheck(&ssdConfig, dest, size, &failAddress, &failData, &bcCtxData);
• if (returnCode == C55_OK)
• while (C55_INPROGRESS == FlashCheckStatus(&ssdConfig, C55_MODE_OP_BLANK_CHECK, &opResult,&bcCtxData)) {};
• return returnCode;
• }
• uint32_t program_and_verify(uint32_t dest, uint32_t buffer, uint32_t size)
• {
• returnCode = FlashProgram(&ssdConfig, TRUE, dest, size, buffer, &pgmCtxData);
• if (returnCode == C55_OK)
• {
• while (C55_INPROGRESS == FlashCheckStatus(&ssdConfig, C55_MODE_OP_PROGRAM, &opResult, &pgmCtxData)) {};
• }
• returnCode = ProgramVerify( &ssdConfig, dest, size, (UINT32) buffer, &failAddress, &failData, &failSource, &pvCtxData);
• if (returnCode == C55_OK)
• {
• while (C55_INPROGRESS == FlashCheckStatus(&ssdConfig, C55_MODE_OP_PROGRAM_VERIFY, &opResult, &pvCtxData)) {};
• }
• return returnCode;
• }
  

And the ssdConfig I write as

• SSD_CONFIG ssdConfig = {
• C55_REG_BASE, /* C55 control register base */
• MAIN_ARRAY_BASE, /* base of main array */
• {0, 4, 2, 2}, /* blocks info of low address space */
• {0, 0, 0, 0}, /* blocks info of mid address space */
• {4, 0, 0, 0}, /* blocks info of high address space */
• 2, /* number of blocks in 256K address space */
• UTEST_ARRAY_BASE, /* base of UTEST array */
• FALSE, /* interface flag indicate main or alternate interface */
• C55_PROGRAMMABLE_SIZE,/* programmable size */
• TRUE /* debug mode selection */
• };
  

I call the flash_init(), utest_lock(), unblock_address_space() functions before erasing/writing with no issues.

Thanks in advance