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Main Features |
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- Faster I/O Line Driver Circuitry supporting faster SPI and JTAG programming
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Supports JTAG speeds up to approx 1.3 MHz and JTAG Chain programming
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Supports SPI speeds up to approx 4 MHz
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Integrated precision 32.768 kHz Oscillator for performing accurate calibration of Atmel AVR internal RC oscillators (replaces the CALCON module)
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Enhanced ESD protection on all Target I/O pins
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Enhanced over-voltage / fault protection on all Target I/O pins
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Safe to use when the Target System is independently powered
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Better at driving capacitive or inductive loads than the 'Standard SFM Module'
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Requires programmer firmware 3.04 or above to operate
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Enhanced I/O ESD and Over-Voltage Protection |
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- All programmer I/O pins are fully ESD and Over-Voltage protected.
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ESD energy is absorbed using ESD Protection Circuitry
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Rail-to-rail protection. All I/O signals are clamped to VCC rail and GND.
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+12V and -7V Fault Protection on each programmer I/O pin
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Overshoot suppression.
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Programmer I/O Circuitry is still protected even if Programmer Controlled Power Supply is off as Line Driver protection is permanently powered from programmer +5.0V.
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Target System can be safely powered from an independent power supply without any power sequencing issues.
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Faster SPI programming |
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- Supports the maximum SPI frequency of 3.6864 MHz in 'Hardware SPI' mode
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Target AVR device must be running at 16MHz or higher to support this SPI frequency
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Operation at 3.6864 MHz gives very fast programming times for large FLASH size devices
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Faster JTAG programming |
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- Supports JTAG clock frequencies up to 4MHz
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Supports JTAG Chain programming including JTAG Chain Verification
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'FAST JTAG' setting must be selected in the 'Programming Project' to use the fastest JTAG algorithm
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Requires firmware 3.07 or above to implement the fastest JTAG programming times
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AVR Internal RC Oscillator Calibration (on-board 32 kHz Oscillator) |
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- SFM Module features on-board precision 32.768 kHz Oscillator for performing accurate calibration of Atmel AVR internal RC oscillators.
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The CALCON Module is therefore no longer required if the EQ-SFM-MAX-V1.3 Module is installed inside the PP3-MK2 Programmer.
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The 32.768 kHz oscillator signal can be switched to either the SPI 'MOSI' pin or JTAG 'TDO' pin under programmer project control.
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Any I/O CONNector (EQ-IO-CON) Module can now be used with the programmer.
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Any legacy 'Oscillator Calibration' projects using the CALCON Module will need to be recompiled for use with the EQ-SFM-MAX-V1.3 Module.
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Safe to use when Target System is independently powered |
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- If the power to the Target System is not supplied / controlled by the programmer then it is possible to have ESD and transient conditions on the programmer Vcc and I/O pins when the programmer is not driving the I/O pins.
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The programmer driver circuit is protected against ESD and over voltage conditions which may occur from the Target System.
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The programmer / driver circuitry can still be damaged by ESD if the programmer is not powered on when the ESD event happens.
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User-replaceable module minimises production down time |
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- SFM Module can be replaced on-site in under 10 minutes
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Simply remove the programmer lid, remove the existing SFM Module and insert the new one
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Changing the SFM Module fixes most faults where the programmer has been damaged with ESD or over-voltage
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How do I swap the Special Function Module ? |
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- The Special Function Module is located inside the PPM3-MK2 programmer main enclosure.
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To swap the module, remove the case fixing screws, remove the existing module and replace it with the new one.
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