SV1AFN ADF4315 controller board programming
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Barry Lewis
Hi folks,
These synthesiser controller boards use an ATtiny85 microcontroller which requires an "In Service Programmer". The relevant pins are brought out to a connector for this. I need to re-program mine and it looks a bit tricky if this is something that you're not set up to do regularly. looking into it I see there are methods involving an Arduino acting as an ISP and I see USB connection solutions but these also require an Arduino to load a "Bootloader" program into the device first. It all looks like a lot of faff for a once off re-program. Does anyone have any experience of reprogramming these devices or maybe have a means already set up to do so? 73 Barry G4SJH
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Mike
Hi Barry,
The info for the ATtiny85 states that it can be programmed via SPI from a normal EEPROM programmer. But how is the question. It also says that programmers include The Microchip ICD4 and PICkit4 debuggers using MPLAB-X, so that may be a route forward. I’ve used MPLAB-X (I can’t say it’s my favourite) but I only have an ICD3 and PICkit 2 and 3. I’ll do some more investigation.
Another alternative might be to replace it with something easier to programme and where the programming tools are not so expensive? Maybe that’s a bit of a sledgehammer…
73, Mike, Mike Stevens, G8CUL/M0CUL/F4VRB.
From: UKMicrowaves@groups.io On Behalf Of Barry Lewis via groups.io
Sent: 30 September 2022 11:09 To: UKMicrowaves@groups.io Subject: [UKMicrowaves] SV1AFN ADF4315 controller board programming
Hi folks,
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Gareth G4XAT
I drive mine with an Arduino nano and the 'go to sleep after commands issued' code by Robin. Bulk buy some from AliExpress. Level converters can be resistors.
Gareth
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Gareth G4XAT
Sorry I assumed it was his adf4351 pll boards, not the controller. I chose the Arduino route as 'simples'....
Gareth
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Mike
Hi Barry,
Actually the new(ish) Microchip ‘Snap’ also lists the ATtiny85 as a compatible device for debug and programming via Mplab-X, using Microchip’s XC8 C compiler. The Snap hardware is about £15-£20, but they often have special offers that reduce that a bit. All the other software tools, Mplab-X itself and XC8 compiler are free to download. Be prepared for a steep learning curve!
I’ve used Mplab-X myself and have the ‘Snap’ hardware and they work well with PICs including 8-bit, 16-bit and 32-bit versions.
73, Mike, Mike Stevens, G8CUL/M0CUL/F4VRB.
From: UKMicrowaves@groups.io On Behalf Of Barry Lewis via groups.io
Sent: 30 September 2022 11:09 To: UKMicrowaves@groups.io Subject: [UKMicrowaves] SV1AFN ADF4315 controller board programming
Hi folks,
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