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Checking whether external RAM allocation was successful.

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This commit is contained in:
DJGummikuh 2024-08-14 07:51:58 +00:00
parent 54901977d9
commit 32a6318362
1 changed files with 13 additions and 4 deletions
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17
esphome/components/waveshare_epaper/waveshare_epaper.cpp
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@ -1642,6 +1642,15 @@ void GDEY075Z08::initialize() {
this->seg_x_ * this->seg_x_ *
this->seg_y_); // initialize the checksums array. Will be filed and maintained by calculate_crss_() this->seg_y_); // initialize the checksums array. Will be filed and maintained by calculate_crss_()
if (this->checksums_ == nullptr || this->segment_buffer_ == nullptr) {
// could not ExternalRAMAllocate at least one of the buffers. We don't really care which, since we need both, so
// mark failed, whine, and return.
this->mark_failed();
ESP_LOGE(TAG, "Failed to allocate required memory for partial updates. Try reducing your num_segment_x and "
"num_segment_y to lower memory requirements. If you don't want to use partial updates, set both "
"values to '1'.");
return;
}
ESP_LOGE(TAG, "Before Powerup, after Reset"); ESP_LOGE(TAG, "Before Powerup, after Reset");
this->command(0x01); // POWER SETTING this->command(0x01); // POWER SETTING
this->data(0x07); this->data(0x07);
@ -1713,10 +1722,10 @@ void HOT GDEY075Z08::display() {
} }
ESP_LOGD(TAG, "Found a change, initializing display for partial backup"); ESP_LOGD(TAG, "Found a change, initializing display for partial backup");
uint16_t x_start, y_start, x_end, y_end, x_start_b, x_end_b; uint16_t x_start, y_start, x_end, y_end, x_start_b, x_end_b;
x_start = (this->get_width_internal() / seg_x_) * first_segment_x_; x_start = (this->get_width_internal() / this->seg_x_) * this->first_segment_x_;
x_end = (this->get_width_internal() / seg_x_) * (last_segment_x_ + 1); x_end = (this->get_width_internal() / this->seg_x_) * (this->last_segment_x_ + 1);
y_start = (this->get_height_internal() / seg_y_) * first_segment_y_; y_start = (this->get_height_internal() / this->seg_y_) * this->first_segment_y_;
y_end = (this->get_height_internal() / seg_y_) * (last_segment_y_ + 1); y_end = (this->get_height_internal() / this->seg_y_) * (this->last_segment_y_ + 1);
x_start_b = x_start / 8; // We need bytes for X, but pixels for Y. This Display does my head in 🤪️ x_start_b = x_start / 8; // We need bytes for X, but pixels for Y. This Display does my head in 🤪️
x_end_b = x_end / 8; x_end_b = x_end / 8;
uint16_t width_b = this->get_width_internal() / 8; uint16_t width_b = this->get_width_internal() / 8;