From e06480e474c5e1704ec56911fbe02996396dd0e0 Mon Sep 17 00:00:00 2001
From: "mohesh.mohan" <moheshmohan@gmail.com>
Date: Fri, 13 Dec 2019 10:33:41 +0400
Subject: [PATCH] Waveshare213bc hung issues workaround
---
.../ui/hw/libs/waveshare/v213bc/epd2in13bc.py | 32 +++++++++++++++++--
1 file changed, 30 insertions(+), 2 deletions(-)
diff --git a/pwnagotchi/ui/hw/libs/waveshare/v213bc/epd2in13bc.py b/pwnagotchi/ui/hw/libs/waveshare/v213bc/epd2in13bc.py
index 6f3e685..39e986a 100644
--- a/pwnagotchi/ui/hw/libs/waveshare/v213bc/epd2in13bc.py
+++ b/pwnagotchi/ui/hw/libs/waveshare/v213bc/epd2in13bc.py
@@ -44,6 +44,7 @@ class EPD:
self.width = EPD_WIDTH
self.height = EPD_HEIGHT
+
lut_vcomDC = [
0x00, 0x08, 0x00, 0x00, 0x00, 0x02,
0x60, 0x28, 0x28, 0x00, 0x00, 0x01,
@@ -183,15 +184,42 @@ class EPD:
if (epdconfig.module_init() != 0):
return -1
+ logging.debug("e-Paper 2.13bc preboot hang check")
+ while(epdconfig.digital_read(self.busy_pin) == 0): # 0: idle, 1: busy
+ epdconfig.delay_ms(100)
+ self.reset()
+ self.send_command(0X50)
+ self.send_data(0xf7)
+ self.send_command(0X02) # power off
+ self.send_command(0X07) # deep sleep
+ self.send_data(0xA5)
+ epdconfig.GPIO.output(epdconfig.RST_PIN, 0)
+ epdconfig.GPIO.output(epdconfig.DC_PIN, 0)
+ epdconfig.GPIO.output(epdconfig.CS_PIN, 0)
+ logging.debug("Reset, powerdown, voltage off done")
+ logging.debug("e-Paper did not hungup")
+
+
self.reset()
+ self.send_command(0x01) # POWER SETTING
+ self.send_data(0x03)
+ self.send_data(0x00)
+ self.send_data(0x2b)
+ self.send_data(0x2b)
+ self.send_data(0x03)
+
self.send_command(0x06) # BOOSTER_SOFT_START
self.send_data(0x17)
self.send_data(0x17)
self.send_data(0x17)
self.send_command(0x04) # POWER_ON
- self.ReadBusy()
+ logging.debug("e-Paper 2.13bc bootup busy")
+ while(epdconfig.digital_read(self.busy_pin) == 0): # 0: idle, 1: busy
+ epdconfig.delay_ms(100)
+ logging.debug("e-Paper booted")
+
# self.send_command(0x00) # PANEL_SETTING
# self.send_data(0x8F)
@@ -210,7 +238,7 @@ class EPD:
self.send_data(0x3a) # 3a 100HZ 29 150Hz 39 200HZ 31 171HZ
self.send_command(0x61) # resolution setting
- self.send_data(self.width)
+ self.send_data(self.width & 0xff)
self.send_data((self.height >> 8) & 0xff)
self.send_data(self.height& 0xff)