mirror of
https://github.com/rstrouse/ESPSomfy-RTS.git
synced 2026-10-31 13:52:15 +01:00
8a59f51111
GPIO12 is a strapping pin on the original ESP32: high at reset, it powers the flash at 1.8 V. A CC1101 can hold GDO2 high at power-up, so a board with RX on 12 bootloops after a power cut until EN is pressed. It was the default RX pin. - RX defaults to GPIO35 on the original ESP32. Saved settings keep their pins. - The log warns each time the radio starts, and the radio settings show a warning, while TX, RX or MISO is on a pin whose level at reset can stop the chip booting (src/BootPins.h, data-src/js/pins.js). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
36 lines
2 KiB
JavaScript
36 lines
2 KiB
JavaScript
// The strapping pins whose level at reset can keep each chip from starting
|
|
// the firmware, as src/BootPins.h has them for the log. A radio that drives
|
|
// one at power-up stops the board booting until EN is pressed (issue #34).
|
|
// The minify step joins this file into index.js; Node loads it on its own for
|
|
// the tests (test/js).
|
|
class BootPins {
|
|
// A warning for each of the radio config's pins that can stop the board
|
|
// booting.
|
|
static radioWarnings(chipModel, config) {
|
|
const chip = BootPins.CHIPS[chipModel || ''] || {};
|
|
const warnings = [];
|
|
for (const [field, name] of BootPins.RADIO) {
|
|
const pin = config[field];
|
|
if (field === 'RXPin' && pin === config.TXPin) continue;
|
|
const effect = chip[pin];
|
|
if (effect) warnings.push(`${name} is on GPIO-${pin}, a strapping pin: ${effect}. The radio can hold it there and stop the board booting after a power cut, so move it to another pin.`);
|
|
}
|
|
return warnings;
|
|
}
|
|
}
|
|
// By the chip model the header sends, '' for the original ESP32.
|
|
BootPins.CHIPS = {
|
|
'': { 0: 'low at reset starts the download mode', 12: 'high at reset powers the flash at 1.8 V' },
|
|
s2: { 0: 'low at reset starts the download mode', 45: 'high at reset powers the flash at 1.8 V' },
|
|
s3: { 0: 'low at reset starts the download mode', 45: 'high at reset powers the flash at 1.8 V' },
|
|
c3: { 9: 'low at reset starts the download mode' },
|
|
c5: { 28: 'low at reset starts the download mode' },
|
|
c6: { 9: 'low at reset starts the download mode' },
|
|
p4: { 35: 'low at reset starts the download mode' },
|
|
p4es: { 35: 'low at reset starts the download mode' }
|
|
};
|
|
// The radio pins the CC1101 drives at power-up, before it is set up: GDO0
|
|
// puts out a clock, GDO2 CHIP_RDYn, and SO follows CHIP_RDYn while CSN is
|
|
// low.
|
|
BootPins.RADIO = [['TXPin', 'TX'], ['RXPin', 'RX'], ['MISOPin', 'MISO']];
|
|
if (typeof module !== 'undefined' && module.exports) module.exports = { BootPins };
|