參數(shù)資料
型號(hào): TMX320F28044ZGMQ
廠商: Texas Instruments, Inc.
元件分類(lèi): 數(shù)字信號(hào)處理
英文描述: Digital Signal Processor
中文描述: 數(shù)字信號(hào)處理器
文件頁(yè)數(shù): 25/107頁(yè)
文件大?。?/td> 784K
代理商: TMX320F28044ZGMQ
www.ti.com
3.2.8
Boot ROM
TMS320F28044
Digital Signal Processor
SPRS357B–AUGUST 2006–REVISED MAY 2007
The Boot ROM is factory-programmed with boot-loading software. Boot-mode signals are provided to tell
the bootloader software what boot mode to use on power up. The user can select to boot normally or to
download new software from an external connection or to select boot software that is programmed in the
internal Flash/ROM. The Boot ROM also contains standard tables, such as SIN/COS waveforms, for use
in math related algorithms.
Table 3-3. Boot Mode Selection
GPIO18
SPICLKA
1
GPIO29
SCITXDA
1
MODE
DESCRIPTION
GPIO34
Boot to Flash/ROM
Jump to Flash/ROM address 0x3F 7FF6
You must have programmed a branch instruction here prior
to reset to redirect code execution as desired.
Load a data stream from SCI-A
Load from an external serial SPI EEPROM on SPI-A
Load data from an external EEPROM at address 0x50 on
the I
2
C bus
Reserved. This mode should not be used.
Jump to M0 SARAM address 0x00 0000.
Jump to OTP address 0x3D 7800
Load data from GPIO0 - GPIO15
1
SCI-A Boot
SPI-A Boot
I
2
C Boot
1
1
1
1
0
0
0
1
0
eCAN-A Boot
Boot to M0 SARAM
Boot to OTP
Parallel I/O Boot
0
0
0
0
1
1
0
0
1
0
1
0
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Functional Overview
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