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dlbeer / mspdebug

Debugging tool for MSP430 MCUs
GNU General Public License v2.0
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regs problem with MSP430F233 #94

Closed iddq closed 3 years ago

iddq commented 4 years ago

JTAG ID: 0x89 Chip ID data: ver_id: 49f2 ver_sub_id: 0000 revision: 04 fab: 60 self: 0000 config: 00 fuses: 87 Device: MSP430F233

(mspdebug) regs ( PC: 001fe) ( R4: 001fe) ( R8: 001fe) (R12: 001fe) ( SP: 001fe) ( R5: 001fe) ( R9: 001fe) (R13: 001fe) ( SR: 001fe) ( R6: 001fe) (R10: 001fe) (R14: 001fe) ( R3: 001fe) ( R7: 001fe) (R11: 001fe) (R15: 001fe)

iddq commented 4 years ago

(gpio access, so jtaglib is in use)

dlbeer commented 4 years ago

On Sat, May 30, 2020 at 07:59:17AM -0700, Gabor wrote:

(gpio access, so jtaglib is in use)

Unfortunately I don't have suitable hardware to test this here. If you want to experiment with the JTAG implementation, I'm happy to answer any questions you might have.

-- Daniel Beer dlbeer@gmail.com http://dlbeer.co.nz/ PGP: BA6E 0B26 1F89 246C E3F3 C910 1E58 C43A 160A 553B

iddq commented 4 years ago

can we debug it somehow? I don't find any doc about register reading.

iddq commented 4 years ago

I think the instruction is not executed. I modified 0x1fe to 0x200 and memory contents at address 0x200 is still unmodified.

dlbeer commented 4 years ago

On Sun, May 31, 2020 at 08:59:30PM -0700, Gabor wrote:

can we debug it somehow? I don't find any doc about register reading.

I'm happy to answer questions, but unfortunately I don't have a lot of time to dive in with debugging right now.

If you want to understand how the JTAG interface works, probably the best thing to read first is the MSP430 Memory Programming User Guide.

-- Daniel Beer dlbeer@gmail.com http://dlbeer.co.nz/ PGP: BA6E 0B26 1F89 246C E3F3 C910 1E58 C43A 160A 553B