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How to change startup_LPC54018.s of LPC54018 about flash

Question asked by 植渲 周 on Oct 16, 2019
Latest reply on Oct 28, 2019 by Alice_Yang

Dear all,

      I find a problem when I change  the flash algorithm of LPC54018. In startup_LPC54018.s file, it has some description about flash. Compared with  LPC540xx/LPC54S0xx User Manual  document, I feel very confused because  the content about flash is different from the startup_LPC54018.s file. For instance, In table12 of document, the address of caps is not writabe from 3 to 23 bit, but startup_LPC54018.s file changes the address. In addtion, I don't understand these code mean, such as

DCD 0x00003F00 ;maxReadSize
DCD 0x68506850 ;maxClkRate,maxReadRate,maxHSReadRate,maxProgramRate
DCD 0x04030050 ;maxHSProgramRate,initDeInitFxId,clearStatusFxId,getStatusFxId
DCD 0x14110D09 ;setStatusFxId,setOptionsFxId,getReadCmdFxId,getWriteCmdFxId

Can you explain these code? I find there are differences compared the document.

Thanks.

 

MCU:

LPC54018JET180

FLASH:

W25Q128FVIG1812 

 

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