Hard-coded RCW is missing on QorIQ Configuration Project CodeWarrior (ls1021a)

[jiye]

This is my Codewarrior

This is from the instruction user guide of QorIQ

how am I able to bring the hard-coded option to my board since my ls1021a device only has an external eMMC and nothing in it. I need to talk to the CPU via the JTAG interface.

[ufedor]

Hard-coded RCW option is selected using the reset configuration word (RCW) source inputs, cfg_rcw_src[0:8], which are multiplexed on {IFC_AD[8:15], IFC_CLE}. The configuration inputs has to be strapped by external resistors.

[w_arjun]

Hi there,

Just trying to get right to the issue here. If we have strapping already in place, for example cfg_rcw_src[0:8] = 
0_0100_0000 for booting from SD/MMC (eSDHC) with resistors, how do we program a virgin un-programmed board using JTAG tools?

Is it possible to override the RCW strapping settings as described below?

The scenario here is when the target board arrives from the PCB supplier with the strapping already in place as shown in the attachment.

Other items to note here,

1. We are using the CodeWarrior TAP (CWH-CTP-BASE-HE) with the Probe Tip CWH-CTP-CTX10-YE for flashing the LS1021A device.
2. The clock synthesizer is strapped for 100 MHz system and DDR clocks.
3. It is currently not possible to dynamically reassign the CFG_RCW_SRC pins.

Thank you

[ufedor]

> Is it possible to override the RCW strapping settings as described below?

Yes.

[w_arjun]

Thank you for the confirmation.

Could you please elaborate on the steps required to get access to the target board using the CodeWarrior TAP (CWH-CTP-BASE-HE)?

[ufedor]

Additional essential component to the CodeWarrior TAP is Probe Tip CWH-CTP-CTX10-YE.

Further please read "CodeWarrior for ARMv7 Targeting Manual".

[jiye]

our clock synthesizer is strapped for 100 MHz so we have to use 0x9A right instead of 0x9B?

If so should I change "\CW_ARMv7_v2019.01\CW_ARMv7\ARMv7\ARM_Support\Configuration_Files\jtag_chains\LS102xATWR_RCW_1000-300-1600.txt  to .bin format then load into CW and then change the settings in it and then regenerate it as .bin file and use it as debug RCW hard-coded file ?

[ufedor]

Correct.

[jiye]

i dont see anywhere lets me to choose cfg_rcw_src [0:8] in the CW

where can I change the cfg_rcw_src to 0x9a

[jiye]

I can't import the .bin (converted from LS102xATWR_RCW_1000-300-1600.txt to LS102xATWR_RCW_1000-300-1600.bin)

[ufedor]

Please read - CodeWarrior for ARMv7 Targeting Manual, 8.4 Setting up a remote system to use a JTAG configuration file. In the step 13 select modified (having 0x9A) JTAG initialization file.

[jiye]

all of them have 0x9b can I manually modify only

to (0 0x9a) ? without changing other values?