SEMC_SendIPCommand() with argument kSEMC_SRAMCM_ArrayRead

nickwallis — Tue, 22 Dec 2020 15:42:16 GMT

Hi,

Does anyone know the format/syntax of IP command SEMC_SendIPCommand() with argument kSEMC_SRAMCM_ArrayRead?

In particular, how do you tell it how much data you want to read?

thanks

-Nick

Re: SEMC_SendIPCommand() with argument kSEMC_SRAMCM_ArrayRead

kerryzhou — Thu, 24 Dec 2020 02:11:58 GMT

Hi nickwallis，

I think you can refer to the other SEMC IP read commander, eg.

SEMC_IPCommandNorRead in fsl_semc.c

You will find the IP command SEMC_SendIPCommand with read method.

while (size_bytes >= SEMC_IPCOMMANDDATASIZEBYTEMAX) { result = SEMC_SendIPCommand(base, kSEMC_MemType_NOR, address, (uint16_t)kSEMC_NORDBICM_Read, 0, tmpData.u32Data); if (result != kStatus_Success) { break; } data += SEMC_IPCOMMANDDATASIZEBYTEMAX; size_bytes -= SEMC_IPCOMMANDDATASIZEBYTEMAX; }

You can find :

SEMC_SendIPCommand(base, kSEMC_MemType_NOR, address, (uint16_t)kSEMC_NORDBICM_Read, 0, tmpData.u32Data);

You can replace the kSEMC_NORDBICM_Read to your kSEMC_SRAMCM_ArrayRead

About how much data, it determined by your code, you can consider each IP read just read 4Bytes, then if you need more, you just call more IP read.

Wish it helps you！

If you still have questions about it, please kindly let me know.

Best Regards,

Kerry

topic SEMC_SendIPCommand() with argument kSEMC_SRAMCM_ArrayRead in MCUXpresso IDE

SEMC_SendIPCommand() with argument kSEMC_SRAMCM_ArrayRead

Re: SEMC_SendIPCommand() with argument kSEMC_SRAMCM_ArrayRead