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Original question:
TMS570LC4357: JTAG emulator connection, can't to regain control of MCU to erase bad code
Dear TI Team
unfortunately I have a flash erase problem.
I tried method 1 of:
which is:
1. Open the target configuration window, and launch the selected the configuration
2. Switch to debug window
3. Press the reset (nRST) button and hold it
4. Click “Connect Target” immediately after you release the nRST button
5. The board should be connected after couple tries
I was able to connect (Point 5), but when I want to flash a healthy code I get the following error message:
CortexR4: Error connecting to the target: (Error -1170 @ 0x0) Unable to access the DAP. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 9.2.0.00002)
The problem occurred because I have changed the HalCoGen settings from the internal OSC to the external OSC (20MHz) and used the following settings:
Which was the reason why I can not flash the MCU again.
I can see the following registers by doing the steps described above (1-5):
But I dont know what I need to do the erase the current flash:
Could you please help me out?!
