Renesas RH850: Flash programming fails

Possible causes and solutions:  

1. CPU reset caused by either External Watchdog circuitry or internal CPU watchdog.

Disable all reset sources during debugging to resolve the issue. More information available here. 

2. P1x-C: UMI Error, R_FAD_ERR_FCUTRNS Transfer to FCU firmware failed.

Make sure that ICUM is disabled. 

3. P1x-C: UMI Error, R_FAD_ERR_CLOCK The CPU clock frequency is incorrect.

Refer to this topic. 

4. Sector/mass erase operation fails.

Caused by issues in older winIDEA:  

• Disable Use hash verification under FLASH device options (see number 5).
• Update winIDEA version.
  

5. UMI Error, R_FCL_ERR_PARAMETER.

Enabled internal watchdog causes that reset invalidates the RAM ECC which silently unloads the Flash monitor and therefor timeout occurs. Use Option Bytes plugin.

Older versions of winIDEA:

1. Open Hardware menu / Tools / FLASH.
2. In FLASH Mask Options section press Preset for LPD4.
3. Press Apply.

F1Kx devices: Contact iSYSTEM technical support to get an updated winIDEA version in which the maximum clock detection is improved. 

6. winIDEA version 9.17.151 and older: A lockbit could be set on code Flash sector that causes UMI error R_FCL_ERR_WRITE Flash write error in that sector.

1. Enable Disable Lock Bits option in Hardware menu / Flash device 
2. Disable Use hash verification.
3. Perform Mass erase with Hardware menu / code FLASH device / Mass erase command. 

7. Check this general topic on Flash programming.

More resources:

• winIDEA Help - Storage device programming options