Fpga Internal Logic - GE MAC 5000 Service Manual

Resting ecg analysis system
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FPGA Internal Logic

2-14
Equipment Overview: Theory of Operation
DS1 Red
DS2 (Green)
On
Flashing
Flashing
Flashing
On
On
Flashing
A copy of primary boot program (pages with ID "Bn" where n is the 3-bit
PCB ID code 1-8) is kept in NAND flash. This is updated whenever
software update happens. The service menu provides a provision to
update the SPI data flash with the primary boot program copy residing
the NAND Flash. For -006 board the FPGA image and Primary boot code
image ID's are X3 and B3 respectively.
The primary boot program can do a forceful software update, even if a
valid program is present in the NAND Flash, by using a special SD Card,
which has a file, update.com, in the root directory.
All of the MAC 5000's proprietary hardware is contained in a single
Xilinx FPGA that contains:
XBus Controller
Video Interface
LCD Controller with SDRAM frame buffer
Video Waveform Scroller
Interrupt Controller
System Interrupt Generator
Acquisition Module Interface
Thermal Printhead Interface
Serial EEPROM Interface
BBus Interface
Four PWM Analog Outputs
Beep Generator
MAC™ 5000 resting ECG analysis system
2024917-010
Off
Programming the NAND Flash
Successful completion of programming
Off
Error - Could program all the image files. But
error in programming the status page 'Z0'.
On
Error - Could not program all the image files
as well as the status page 'Z0'.
Error - Could not program all the image files.
But the status page 'Z0' updated successfully
Status
Revision B

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