mirror of
https://github.com/Next-Flip/Momentum-Firmware.git
synced 2026-10-27 08:03:34 +00:00
93 lines
3.1 KiB
JavaScript
93 lines
3.1 KiB
JavaScript
// Script cannot work without spi module so check before
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checkSdkFeatures(["spi"]);
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// Connect a w25q32 SPI device to the Flipper Zero.
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// D1=pin 2 (MOSI), SLK=pin 5 (SCK), GND=pin 8 (GND), D0=pin 3 (MISO), CS=pin 4 (CS), VCC=pin 9 (3V3)
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let spi = require("spi");
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// Display textbox so user can scroll to see all output.
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let eventLoop = require("event_loop");
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let gui = require("gui");
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let textBoxView = require("gui/text_box");
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let text = "SPI demo\n";
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let textBox = textBoxView.makeWith({
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focus: "end",
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font: "text",
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text: text,
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});
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function addText(add) {
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text += add;
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textBox.set("text", text);
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}
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gui.viewDispatcher.switchTo(textBox);
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// writeRead returns a buffer the same length as the input buffer.
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// We send 6 bytes of data, starting with 0x90, which is the command to read the manufacturer ID.
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// Can also use Uint8Array([0x90, 0x00, ...]) as write parameter
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// Optional timeout parameter in ms. We set to 100ms.
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let data_buf = spi.writeRead([0x90, 0x0, 0x0, 0x0, 0x0, 0x0], 100);
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let data = Uint8Array(data_buf);
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if (data.length === 6) {
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if (data[4] === 0xEF) {
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addText("Found Winbond device\n");
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if (data[5] === 0x15) {
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addText("Device ID: W25Q32\n");
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} else {
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addText("Unknown device ID: " + data[5].toString(16) + "\n");
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}
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} else if (data[4] === 0x0) {
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addText("Be sure Winbond W25Q32 is connected to Flipper Zero SPI pins.\n");
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} else {
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addText("Unknown device. Manufacturer ID: " + data[4].toString(16) + "\n");
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}
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}
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addText("\nReading JEDEC ID\n");
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// Acquire the SPI bus. Multiple calls will happen with Chip Select (CS) held low.
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spi.acquire();
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// Send command (0x9F) to read JEDEC ID.
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// Can also use Uint8Array([0x9F]) as write parameter
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// Note: you can pass an optional timeout parameter in milliseconds.
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spi.write([0x9F]);
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// Request 3 bytes of data.
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// Note: you can pass an optional timeout parameter in milliseconds.
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data_buf = spi.read(3);
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// Release the SPI bus as soon as we are done with the set of SPI commands.
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spi.release();
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data = Uint8Array(data_buf);
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addText("JEDEC MF ID: " + data[0].toString(16) + "\n");
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addText("JEDEC Memory Type: " + data[1].toString(16) + "\n");
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addText("JEDEC Capacity ID: " + data[2].toString(16) + "\n");
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if (data[0] === 0xEF) {
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addText("Found Winbond device\n");
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}
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let capacity = data[1] << 8 | data[2];
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if (capacity === 0x4016) {
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addText("Device: W25Q32\n");
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} else if (capacity === 0x4015) {
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addText("Device: W25Q16\n");
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} else if (capacity === 0x4014) {
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addText("Device: W25Q80\n");
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} else {
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addText("Unknown device\n");
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}
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// Wait for user to close the app
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eventLoop.subscribe(gui.viewDispatcher.navigation, function (_sub, _, eventLoop) {
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eventLoop.stop();
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}, eventLoop);
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// This script has no interaction, only textbox, so event loop doesn't need to be running all the time
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// We run it at the end to accept input for the back button press to quit
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// But before that, user sees a textbox and pressing back has no effect
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// This is fine because it allows simpler logic and the code above takes no time at all to run
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eventLoop.run();
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