Hi,

My topic, I want drive M0 in FPGA by Keil, and already finish light LED in FPGA by vivado that generate bitstream with COE file include software bin code

I'm building the FPGA platform with original ARM M0 RTL ( from developer.arm.com/downloads/se…AFA+Entry&type=Processors),
so I only have simple ROM (address 0x00000000 - 0x00010000) and don't have flash memory on the platform like other vendor platforms

When I use Keil MDK V5.37.0.0 (including Arm_Compiler_5.06u7) to download the firmware code to Xilinx FPGA through J-LINK EDU
i got the error log in keil :

Target info:
------------
Device: ARMCM0
VTarget = 1.793V
State of Pins:
TCK: 0, TDI: 0, TDO: 0, TMS: 1, TRES: 1, TRST: 0
Hardware-Breakpoints: 4
Software-Breakpoints: 8192
Watchpoints: 2
JTAG speed: 15000 kHz

No Algorithm found for: 00000000H - 00000E5FH
Programming skipped!
Error: Flash Download failed - "Cortex-M0"
Flash Load finished at 16:49:34

I have ask arm support and google related issues ( include segger or csdn or ....)
they all point to the need to set keil > Options > debug > settings > Flash Download
but I haven't flash in the platform ，what should I do.

Thanks.

Hi Alex,
I use Keil5 to download the firmware code to Xilinx FPGA through J-LINK EDU
and have the error message as follows :

JLink info:
------------
DLL: V7.86 , compiled Feb 15 2023 17:09:49
Firmware: J-Link V10 compiled Jan 30 2023 11:28:07
Hardware: V10.10
S/N : 260107093
OEM : SEGGER-EDU
Feature(s) : FlashBP, GDB
* JLink Info: Found SW-DP with ID 0x0BB11477
* JLink Info: DPIDR: 0x0BB11477
* JLink Info: CoreSight SoC-400 or earlier
* JLink Info: Scanning AP map to find all available APs
* JLink Info: AP[1]: Stopped AP scan as end of AP map has been reached
* JLink Info: AP[0]: AHB-AP (IDR: 0x04770021)
* JLink Info: Iterating through AP map to find AHB-AP to use
* JLink Info: AP[0]: Core found
* JLink Info: AP[0]: AHB-AP ROM base: 0xE00FF000
* JLink Info: CPUID register: 0x410CC200. Implementer code: 0x41 (ARM)
* JLink Info: Found Cortex-M0 r0p0, Little endian.
* JLink Info: FPUnit: 4 code (BP) slots and 0 literal slots
* JLink Info: CoreSight components:
* JLink Info: ROMTbl[0] @ E00FF000
* JLink Info: [0][0]: E000E000 CID B105E00D PID 000BB008 SCS
* JLink Info: [0][1]: E0001000 CID B105E00D PID 000BB00A DWT
* JLink Info: [0][2]: E0002000 CID B105E00D PID 000BB00B FPB
ROMTableAddr = 0xE00FF000
* JLink Info: Reset: Halt core after reset via DEMCR.VC_CORERESET.
* JLink Info: Reset: Reset device via AIRCR.SYSRESETREQ.
Target info:
------------
Device: ARMCM0
VTarget = 1.793V
State of Pins:
TCK: 0, TDI: 0, TDO: 0, TMS: 1, TRES: 1, TRST: 0
Hardware-Breakpoints: 4
Software-Breakpoints: 8192
Watchpoints: 2
JTAG speed: 15000 kHz
Full Chip Erase Done.
No Algorithm found for: 00000000H - 00000E5FH
Programming skipped!
Error: Flash Download failed - "Cortex-M0"

Flash Load finished at 16:49:34

No Algorithm found for: 00000000H - 00000E5FH
Programming skipped!
Error: Flash Download failed - "Cortex-M0"
Flash Load finished at 16:49:34

my hw platform based on M0, with rom ( addr from 0x00000000 to 0x00010000), and with ram ( addr from 0x20000000 to 0x20010000)
I have no flash in my hw platformso I couldn't Add Flash Programming Algorithm
( ref developer.arm.com/documentatio…ng/Target-Driver-Settings)
what should I do?

Thanks.

Hi Alex :

I have using J-Link Commander to read / write 0x00008000
(rom addr rage 0x0000_0000 - 0x0001_0000)
and confirm can access that range
but I still couldn't download fw code in KEIL

but I haven't embedded flash
so I couldn't set programming algorithm
thanks.

Hi Alex :

I know, I have replaced the FPGA sram model with ROM wrapper under M0 RTL
and try to set the RAM@0x0 in Options > Target > Read/Write Memory Area > IRAM1
but Keil doesn't allow this action
Is there any other advice you can give me?

thanks.