Boot Eeprom (Brom) - Yamaha DRX-2 Service Manual

DRX-2
Nucleus Name
Nucleus Number
Description
Technical
Execution Time
User Input
Error
Example

Boot EEPROM (BROM)

Nucleus Name
Nucleus Number
Description
Technical
Execution Time
User Input
Error
Example
22
DS_CHR_DMA_TestDMA
115
Test the memory to memory DMA transfer
- Create a block with known data in memory
- Copy this block to the consecutive area using 3 different DMAs
- Check whether all DMAs transferred the data properly
Less than 2 seconds.
-
Number Description
11500 The testing of the DMAs succeeded
11501 The initialisation of the DMAs failed for one or more DMA
11502 One or more DMAs failed the test
DS:> 115
011500:
Test OK @
DS_BROM_Communication
200
Check the communication between the IIC controller of the Chrysalis and the boot EE-PROM
- Initialise IIC
- Read something from the eeprom
Less than 1 second.
None
Number Description
20000 The data is properly read so the communication is OK
20001 The IIC bus was not accessible
20002 There was a timeout reading the device
20003 The IIC acknowledge was not received
20004 An IIC-bus error occurred
20005 The IIC bus initialisation failed
20006 An unexpected IIC error occurred
DS:> 200
020000:
Test OK @