Hi,
Thank you for your reply. As I mentioned I am using a external MCU for doing the SPI initialization. I am not that experienced with doing SPI through Linux, so I just send the commands with a MCU instead to get the display initialized, this should work in theory, right? I also want to use the display with RGB888 if possible.
You are right, I thought it only needed the standby mode turned off, but seems there is 100+ commands just for initialization... I have now tried with the complete initialization sequence also, but still no response. This is the code I am using using the initialization sequence in chapter 3. I have changed from YUV to RGB, and kept the default timings. (I am now using an Arduino UNO with a level converter). If I can get it to work this way I can move on to implementing it on the Pi later.
I cannot find any TCON part number (I if understand correctly this is the same as the driver IC?). Additionally, I have also tried to change the clock frequency to both 32MHz and 19.2MHz but still cannot get any image or response from the display. Should I in theory get any form of response on the display as long as the init-sequence is correct and the timings in config.txt are equal to the specified timings in the datasheet?
Appreciate the help.
Thank you for your reply. As I mentioned I am using a external MCU for doing the SPI initialization. I am not that experienced with doing SPI through Linux, so I just send the commands with a MCU instead to get the display initialized, this should work in theory, right? I also want to use the display with RGB888 if possible.
You are right, I thought it only needed the standby mode turned off, but seems there is 100+ commands just for initialization... I have now tried with the complete initialization sequence also, but still no response. This is the code I am using using the initialization sequence in chapter 3. I have changed from YUV to RGB, and kept the default timings. (I am now using an Arduino UNO with a level converter). If I can get it to work this way I can move on to implementing it on the Pi later.
Code:
#include <SPI.h>#define SS_PIN 10 // Slave Select Pin#define MOSI_PIN 11 // Master Out Slave In Pin#define SCK_PIN 13 // Serial Clock Pinvoid setup() { pinMode(SS_PIN, OUTPUT); SPI.begin(); digitalWrite(SS_PIN, LOW); SPI.transfer16(0xFDFF); SPI.transfer16(0x8156); SPI.transfer16(0x8201); SPI.transfer16(0xFD00); SPI.transfer16(0x1800); SPI.transfer16(0x1915); SPI.transfer16(0x1A28); SPI.transfer16(0xFDD8); SPI.transfer16(0x0121); SPI.transfer16(0x0221); SPI.transfer16(0xFDE1); SPI.transfer16(0x015F); SPI.transfer16(0x020D); SPI.transfer16(0x0321); SPI.transfer16(0x042F); SPI.transfer16(0x0510); SPI.transfer16(0x0611); SPI.transfer16(0x0721); SPI.transfer16(0x0808); SPI.transfer16(0x0908); SPI.transfer16(0x0A08); SPI.transfer16(0x0B0B); SPI.transfer16(0x0C13); SPI.transfer16(0x0D10); SPI.transfer16(0x0E0F); SPI.transfer16(0x0F14); SPI.transfer16(0x100B); SPI.transfer16(0x1102); SPI.transfer16(0x1207); SPI.transfer16(0xFDE2); SPI.transfer16(0x0179); SPI.transfer16(0x020D); SPI.transfer16(0x0321); SPI.transfer16(0x042F); SPI.transfer16(0x0510); SPI.transfer16(0x0611); SPI.transfer16(0x0721); SPI.transfer16(0x0808); SPI.transfer16(0x0908); SPI.transfer16(0x0A08); SPI.transfer16(0x0B0B); SPI.transfer16(0x0C13); SPI.transfer16(0x0D10); SPI.transfer16(0x0E0F); SPI.transfer16(0x0F14); SPI.transfer16(0x100B); SPI.transfer16(0x1102); SPI.transfer16(0x1207); SPI.transfer16(0xFDE3); SPI.transfer16(0x010F); SPI.transfer16(0x0202); SPI.transfer16(0x0308); SPI.transfer16(0x040E); SPI.transfer16(0x050C); SPI.transfer16(0x060D); SPI.transfer16(0x0714); SPI.transfer16(0x0806); SPI.transfer16(0x0905); SPI.transfer16(0x0A0B); SPI.transfer16(0x0B0C); SPI.transfer16(0x0C1A); SPI.transfer16(0x0D10); SPI.transfer16(0x0E0E); SPI.transfer16(0x0F1B); SPI.transfer16(0x100E); SPI.transfer16(0x1102); SPI.transfer16(0x1207); SPI.transfer16(0xFDE4); SPI.transfer16(0x0123); SPI.transfer16(0x0202); SPI.transfer16(0x0308); SPI.transfer16(0x040E); SPI.transfer16(0x050C); SPI.transfer16(0x060D); SPI.transfer16(0x0714); SPI.transfer16(0x0806); SPI.transfer16(0x0905); SPI.transfer16(0x0A0B); SPI.transfer16(0x0B0C); SPI.transfer16(0x0C1A); SPI.transfer16(0x0D10); SPI.transfer16(0x0E0E); SPI.transfer16(0x0F1B); SPI.transfer16(0x100E); SPI.transfer16(0x1103); SPI.transfer16(0x1207); SPI.transfer16(0xFDE5); SPI.transfer16(0x0119); SPI.transfer16(0x0202); SPI.transfer16(0x0309); SPI.transfer16(0x0411); SPI.transfer16(0x050C); SPI.transfer16(0x060E); SPI.transfer16(0x0711); SPI.transfer16(0x0806); SPI.transfer16(0x0906); SPI.transfer16(0x0A0A); SPI.transfer16(0x0B0C); SPI.transfer16(0x0C25); SPI.transfer16(0x0D14); SPI.transfer16(0x0E19); SPI.transfer16(0x0F04); SPI.transfer16(0x1003); SPI.transfer16(0x1102); SPI.transfer16(0x1207); SPI.transfer16(0xFDE6); SPI.transfer16(0x012F); SPI.transfer16(0x0202); SPI.transfer16(0x0309); SPI.transfer16(0x0411); SPI.transfer16(0x050C); SPI.transfer16(0x060E); SPI.transfer16(0x0711); SPI.transfer16(0x0806); SPI.transfer16(0x0906); SPI.transfer16(0x0A0A); SPI.transfer16(0x0B0C); SPI.transfer16(0x0C25); SPI.transfer16(0x0D14); SPI.transfer16(0x0E19); SPI.transfer16(0x0F04); SPI.transfer16(0x1003); SPI.transfer16(0x1102); SPI.transfer16(0x1207); SPI.transfer16(0xFDC4); SPI.transfer16(0x8205); SPI.transfer16(0xFDC1); SPI.transfer16(0x9143); SPI.transfer16(0xFDC0); SPI.transfer16(0xA101); SPI.transfer16(0xA21C); SPI.transfer16(0xA30A); SPI.transfer16(0xA434); SPI.transfer16(0xA500); SPI.transfer16(0xA609); SPI.transfer16(0xA734); SPI.transfer16(0xA800); SPI.transfer16(0xA909); SPI.transfer16(0xAA34); SPI.transfer16(0xFDCE); SPI.transfer16(0x8114); SPI.transfer16(0x823E); SPI.transfer16(0x833E); SPI.transfer16(0x9107); SPI.transfer16(0x9331); SPI.transfer16(0x9402); SPI.transfer16(0x9507); SPI.transfer16(0x9731); SPI.transfer16(0x9802); SPI.transfer16(0x9907); SPI.transfer16(0x9B31); SPI.transfer16(0x9C02); SPI.transfer16(0xFD00); SPI.transfer16(0x0101); digitalWrite(SS_PIN, HIGH);}void loop() {}
I cannot find any TCON part number (I if understand correctly this is the same as the driver IC?). Additionally, I have also tried to change the clock frequency to both 32MHz and 19.2MHz but still cannot get any image or response from the display. Should I in theory get any form of response on the display as long as the init-sequence is correct and the timings in config.txt are equal to the specified timings in the datasheet?
Appreciate the help.
Statistics: Posted by krstau — Sat Mar 16, 2024 1:02 am