Bootloader Flowchart
MOTOROLA
Bootstrap Mode Operation
9-7
9.5 Bootloader Flowchart
Figure 9-1 on page 9-7 illustrates how the bootloader program operates inside the MC9328MX1. The
bootloader starts when the MC9328MX1 enters bootstrap mode.
Figure 9-1. Bootloader Program Operation
9.6 Special Notes
The following summary items may be helpful when working in bootstrap mode.
•
A b-record is a string of uppercase hex characters with optional comments that follow.
•
Comments in a b-record or b-record file must not contain any word or symbol that is longer than
nine characters. However, the following characters can be used in a string of any length (all of these
have an ASCII code value that is less than 0x30):
— space
START
Initialize
UART
Receive a Bootstrap
Data COUNT = 0?
Run Program
at ADDR
Store Data to
ADDR
NO
YES
NO
Record
Read?
Data COUNT &
Data SIZE
Valid?
YES
Read Data From
ADDR
YES
ECHO Data
Starting
NO
ECHO *
ECHO /
Summary of Contents for DragonBall MC9328MX1
Page 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Page 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Page 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Page 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Page 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
Page 272: ...13 32 MC9328MX1 Reference Manual MOTOROLA DMA Controller ...
Page 281: ...Programming Model MOTOROLA Watchdog Timer Module 14 9 ...
Page 282: ...14 10 MC9328MX1 Reference Manual MOTOROLA Watchdog Timer Module ...
Page 300: ...15 18 MC9328MX1 Reference Manual MOTOROLA Analog Signal Processor ASP ...
Page 438: ...18 16 MC9328MX1 Reference Manual MOTOROLA Serial Peripheral Interface Modules SPI 1 and SPI 2 ...
Page 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Page 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Page 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Page 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
Page 726: ...25 56 MC9328MX1 Reference Manual MOTOROLA SmartCard Interface Module SIM ...
Page 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Page 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Page 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
Page 942: ...32 26 MC9328MX1 Reference Manual MOTOROLA GPIO Module and I O Multiplexer IOMUX ...