MIMXRT1166 FLEXSPI_UpdateLUT fails

tbonkers — Tue, 04 Feb 2025 09:36:55 GMT

When trying to update flash LUT, function FLEXSPI_UpdateLUT fails. MCR0->MDIS is set to zero, so module is not disabled:

MCR0 = 0xffffa030, MCR1 = 0xffffffff, MCR2 = 0x200001f7, AHBCR = 0x78, INTEN = 0x0, INTR = 0x41, LUTKEY = 0x5af05af0, LUTCR = 0x2, AHBRXBUFCR0 = {0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80070040}, RESERVED_0 = {0x0 <repeats 32 times>}, FLSHCR0 = {0x2000, 0x0, 0x0, 0x0}, FLSHCR1 = {0x63, 0x10063, 0x10063, 0x10063}, FLSHCR2 = {0x0, 0x900, 0x900, 0x900}, RESERVED_1 = {0xc, 0xc, 0x0, 0xd}, FLSHCR4 = 0x3, RESERVED_2 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, IPCR0 = 0x0, IPCR1 = 0x10000, RESERVED_3 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, IPCMD = 0x0, RESERVED_4 = {0x0, 0x0, 0x0, 0x0}, IPRXFCR = 0x1c, IPTXFCR = 0x1c, DLLCR = {0x79, 0x100}, RESERVED_5 = {0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, MISCCR4 = 0x0, MISCCR5 = 0x0, MISCCR6 = 0x0, MISCCR7 = 0x0, STS0 = 0x3, STS1 = 0x0, STS2 = 0x1353, AHBSPNDSTS = 0x0, IPRXFSTS = 0x0, IPTXFSTS = 0x80007, RESERVED_6 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, RFDR = {0x8b2007dc, 0x0, 0x0, 0x0, 0x8b200712, 0xa304, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x760, 0x0 <repeats 19 times>}, TFDR = {0x0 <repeats 32 times>}, LUT = {0x8b2007fd, 0xa704b306, 0x0, 0x0, 0x4000481, 0x4000400, 0x2001, 0x0, 0x799, 0x0 <repeats 55 times>}, RESERVED_7 = {0x0 <repeats 256 times>}, HMSTRCR = {0x40ffcf, 0xffcf, 0x4f00f, 0x22807f, 0x32f87f, 0x11f87f, 0x0, 0x0}, HADDRSTART = 0x0, HADDREND = 0x0, HADDROFFSET = 0x0

Debug sessions gets killed at the instance when code tries to update the LUT:

*lutBase++ = *cmd++;

I haven't found a way to interrogate the processor as debugger disconnects.

Re: MIMXRT1166 FLEXSPI_UpdateLUT fails

Harry_Zhang — Thu, 06 Feb 2025 10:46:30 GMT

Hi @tbonkers

I think you can refer to the SDK flexspi example FLEXSPI_UpdateLUT function.

void FLEXSPI_UpdateLUT(FLEXSPI_Type *base, uint32_t index, const uint32_t *cmd, uint32_t count) { assert(index < 64U); uint32_t i = 0; volatile uint32_t *lutBase; /* Wait for bus to be idle before changing flash configuration. */ while (!FLEXSPI_GetBusIdleStatus(base)) { } /* Unlock LUT for update. */ #if !((defined(FSL_FEATURE_FLEXSPI_LUTKEY_IS_RO)) && (FSL_FEATURE_FLEXSPI_LUTKEY_IS_RO)) base->LUTKEY = FLEXSPI_LUT_KEY_VAL; #endif base->LUTCR = 0x02; lutBase = &base->LUT[index]; for (i = 0; i < count; i++) { *lutBase++ = *cmd++; } /* Lock LUT. */ #if !((defined(FSL_FEATURE_FLEXSPI_LUTKEY_IS_RO)) && (FSL_FEATURE_FLEXSPI_LUTKEY_IS_RO)) base->LUTKEY = FLEXSPI_LUT_KEY_VAL; #endif base->LUTCR = 0x01; }

Harry

topic MIMXRT1166 FLEXSPI_UpdateLUT fails in i.MX RT Crossover MCUs

MIMXRT1166 FLEXSPI_UpdateLUT fails

Re: MIMXRT1166 FLEXSPI_UpdateLUT fails