AN 100: In-System Programmability Guidelines

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ID 683546
Date 9/22/2014
Public
Document Table of Contents
Document Table of Contents x
1. In-System Programmability Guidelines
1. In-System Programmability Guidelines x
1.1. General ISP Guideline 1.2. IEEE Std. 1149.1 Signals 1.3. Sequential versus Concurrent Programming 1.4. ISP Troubleshooting Guidelines 1.5. ISP through Embedded Processors 1.6. ISP through In-Circuit Testers 1.7. Document Revision History
1.1. General ISP Guideline x
1.1.1. Operating Conditions 1.1.2. User Flash Memory Operations During In-System Programming 1.1.3. Interrupting In-System Programming 1.1.4. MultiVolt Devices and Power-Up Sequences 1.1.5. I/O Pins Tri-Stated During In-System Programming 1.1.6. Pull-Up and Pull-Down of JTAG Pins During In-System Programming
1.1.1. Operating Conditions x
1.1.1.1. ISP Voltage MAX 10 Devices MAX II and V Devices MAX 3000, MAX 7000, and MAX 9000 Devices 1.1.1.2. Input Voltages
1.2. IEEE Std. 1149.1 Signals x
1.2.1. TCK Signal 1.2.2. Programming Through a Download Cable 1.2.3. Disabling IEEE Std. 1149.1 Circuitry 1.2.4. Working with Different Voltage Levels
1.3. Sequential versus Concurrent Programming x
1.3.1. Sequential Programming 1.3.2. Concurrent Programming 1.3.3. Selecting Sequential or Concurrent Programming 1.3.4. Devices in Different Modes
1.4. ISP Troubleshooting Guidelines x
1.4.1. Invalid ID and Unrecognized Device Messages 1.4.2. Verify the JTAG Chain Continuity 1.4.3. Check the Voltage Levels of the Board During In-System Programming 1.4.4. Random Signals on JTAG Pins 1.4.5. Software Issues
1.5. ISP through Embedded Processors x
1.5.1. Processor and Memory Requirements 1.5.2. Porting the Jam Player
1. In-System Programmability Guidelines

1.1.1.1. ISP Voltage

Altera devices have different ISP voltage requirements depending on the device family. You have to be comply all requirements to ensure the device are programmed correctly.

MAX 10 Devices

For MAX 10 devices, you must maintain the VCC/VCC_ONE level, VCCA level, and VCCIO level on the VCC/VCC_ONE, VCCA, and VCCIO pins during in-system programming to ensure the flash cells of the device are correctly programmed. The VCC/VCC_ONE, VCCA and VCCIO specification applies for both commercial- and industrial-temperature grade devices.

MAX II and V Devices

For MAX II and MAX V devices, you must maintain the VCCINT level and VCCIO level on the VCCINT and VCCIO pins during in-system programming to ensure the flash cells of the device are correctly programmed. The VCCINT and VCCIO specification applies for both commercial- and industrial-temperature grade devices.

MAX 3000, MAX 7000, and MAX 9000 Devices

MAX 3000, MAX 7000, and MAX 9000 devices have specified ISP voltage known as VCCISP. You must maintain the VCCISP level on the VCCINT pins (for example, VCCINT equals to VCCISP) during ISP to ensure that the EEPROM cells of the device are programmed correctly. The VCCISP specification applies for both commercial- and industrial- temperature- grade devices.

You have to adjust your in-system programming setup to maintain correct voltage levels if power consumption during ISP exceeds the power consumption when in user mode. Altera recommends that you test the VCCISP levels on the device’s VCCINT pins with an oscilloscope. First, test the VCCISP levels with the oscilloscope’s trigger level set to the recommended minimum VCC level. Measure the voltage between VCCINT and ground, probed at the pins of the device. Then, repeat this test with the oscilloscope’s trigger level set to the recommended maximum VCC level. If the oscilloscope is triggered at either voltage level, you must adjust your programming setup.

The recommended voltage levels are specified in the Recommended Operating Conditions section of the appropriate Device Family Datasheet. Refer to the related information.

Related Information
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