Title: issue with parallel mode LCD HY28B MCHF v0.4.
Post by: vu2iia on 30. April 2021, 07:05:27
Dear All,
I am looking for some help, I have finished Rx side of MCHF v0.4 and Rx is working very well.
LCD (HY28B) is in parallel mode and having strange colour issue. LCD background colour changes to brown. Please have a look at the photo and suggest a solution.
Interestingly, If I use LCD in SPI mode, there is no colour issue, but SPI mode doesnt work everytime. If I try 100 times LCD SPI mode works only 2 times and 98 times I get white screen. How do I solve this issue?.
I do have raspberry pi 3.5inch ILI9486 SPI LCD, but I need wiring details for it. I read that it works very slow in spi mode, but I am intested only testing it. Due to covid19 lock down we cannot get things from out side India.
Color issue = https://qsl.net/vu2iia/mchf_v0.4_hy28b_parallel_color_issue.jpg
CPU & FW details = https://qsl.net/vu2iia/mchf_v0.4_hy28b_parallel_color_issue_2.jpg
Sys details = https://qsl.net/vu2iia/mchf_v0.4_hy28b_parallel_color_issue_3.jpg
Hoping to get some help,
Thanks in advance
Mahesh-vu2iia
Mumbai-India |
Title: Re:issue with parallel mode LCD HY28B MCHF v0.4.
Post by: DF8OE on 30. April 2021, 07:29:27
Hi Mahesh,
I attach our adaptor-PCB where you can extract the neccessary informations.
vy 73 - stay healthy
Andreas |
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