Programming Infineon SAF-C164CI-8RM MCU

[gaminn]

Hi, what tool (both HW and SW) can used to program Infineon SAF-C164CI-8RM MCUs? I found a datasheet of this MCU https://www.keil.com/dd/docs/datashts/infineon/c164ciclsisl_um.pdf , but I can't find any information on that topic. I also can't find what pins of the MCU do I connect the programmer to. Hopefully someone knows...

[Postal2]

I'm using "Minimon" for this kind of chips. But especially for c164 there is some trouble with external flash. This is not relative to internal flash.

[gaminn]

Thanks a lot. My board doesn't have an external flash memory.

What pins do I connect the programmer to? TxD0 and RxD0? What if TxD0 and RxD0 are already used by the application? What baud rate/parity/Data Bits/Stop Bits do I set?

Many of my questions would be answered by some official document describing the programming interface. Is there any?

[Postal2]

Search keyword "BSL" in your document. But your MCU uses mask-rom, not flash.

OTP is used in ...-8EM, and I only bought such chips, because they are much cheaper than those that have no memory at all, although they replace them perfectly.

[gaminn]

I was able to connect to my SAF-C164CI-8RM MCU using Minimon. First I connected pins of the MCU like this: RD=0, ALE=0, EA=1, then connceted P3.10/TxD0 and P311/RxD0 to an USB/UART 5V converter.

In Minimon, I went to Target -> Configuration, where I selected Controller type = C164CI-8R and Initialize register to SYSCON = 0x0600 and BUSCON0 = 02C0. I connected to the target and uploaded data from address range 0x0000 - 0x7FFF and 0x18000 - 0x1FFFF (which hopefully should be ROM of the MCU) to Minimon:

Code: [Select]

*Loader file Prepare
*Minimon file Prepare
*send 0 Byte + Loader + MinimonCore
*RECEIVE - MC-Identifier: D5
*RECEIVE - LoaderACK 01 received
*RECEIVE - Minimon ACK 03 received
*Minimon successfully launched
*Reset: BUSCON0=02C0
*Reset: SYSCON=0690
*Reset Configuration: External Bus disabled
*Reset Configuration: 16 Bit multiplexed Bus
*Reset Configuration: WR# acts as WRL#, BHE# acts as WRH# (P0H.0=1)
*Reset Configuration: On chip watchdog timer is enabled (RD#=1)
*Reset Configuration: Lengthened ALE signal
*Initialisation: Write to SYSCON
*Initialisation: Write to BUSCON0
*Initialisation: Enable X-Peripherals via SYSCON
*Initialisation: Call EINIT Command
*Upload:  1024 bytes
*Upload:  2048 bytes
*Upload:  3072 bytes
*Upload:  4096 bytes
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*Upload:  18432 bytes
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*Upload:  65536 bytes
If I click on View -> Disassemble, I always get something like this:

Code: [Select]

002BA0: TRAP    #7B
002BA2: TRAP    #7B
002BA4: RETI   
002BA6: RETI   
002BA8: BSET    R13.9
002BAA: BSET    R13.9
002BAC: RETI   
002BAE: RETI   
002BB0: RETS   
002BB2: RETS   
002BB4: BSET    R12.9
002BB6: BSET    R12.9
002BB8: BSET    R12.15
002BBA: BSET    R12.15
002BBC: RETI   
002BBE: RETI   
002BC0: Illegal Operand
*****************************

I'm not an expert but the code doesn't look valid to me. Can somebody confirm? What should I do to read valid code from the MCU?

Also, if I change e.g. first two bytes (address 0x0000 and 0x0001) and I click Download to write 32 byte long chunk of data I just edited to MCU, I get:

Code: [Select]

*ERROR: download not successful
How to write code to MCU's ROM?

[Atlan]

It has rom memory, not flash.  And u will be locked for reading.

[gaminn]

It has rom memory, not flash.  And u will be locked for reading.

Thanks. How can I tell then it is locked for reading? I still get some data shen reading the ROM.