RobG 1,892 Posted May 16, 2014 Author Share Posted May 16, 2014 You can use P2, but you will not be able to use hardware SPI. Quote Link to post Share on other sites
zapris 0 Posted February 20, 2015 Share Posted February 20, 2015 Hi, i am new to SPI communication, i bought a TFT screen with ST7735 like this one: http://majek.mamy.to/wp-content/uploads/2014/06/red-st7735-back.jpg http://majek.mamy.to/wp-content/uploads/2014/06/red-st7735-front.jpg Can you tell me which pins to connect to TI Launchpad with MSP430G2553, and which version to use? Tried latest one but screen shows nothing, even if there are no error in CCS, Don't know what went wrong Quote Link to post Share on other sites
RobG 1,892 Posted February 20, 2015 Author Share Posted February 20, 2015 SCK - P1.5 SDA - P1.7 DC - P1.4 CS - P1.0 RESET - you can connect to any pin and reset in software, connect to R/C (47k/0.1uF,) or use LP's RESET (but you will not be able to see anything when debugging.) In worst case scenario, you can try connecting it to Vcc. Looks like this board has an LDO, is J1 for 3.3V operation? If yes, short it. Quote Link to post Share on other sites
zapris 0 Posted February 24, 2015 Share Posted February 24, 2015 Thanks, i don't know if it has a LDO, buen i will try to short J1, it probably does, because the led's light is not so bright when connected to 3.3v. Again, Thanks Quote Link to post Share on other sites
jwsusa 0 Posted May 12, 2015 Share Posted May 12, 2015 Rob, wondering if you can help - and I will try to PM you with some non public details as well. we are close to releasing a new production version of a particular msp430 design, and as part of the change in features, we are using a new ST7735S display as supplied by Seeed. Supposedly the screen is a ST7735S based display, with screen design JYT144003-T01. Unfortunately when we received the manufactured assembly from Seeed, it turns out the flex connector for the screen is reversed from the spec. That's ok for now, have been able to reconnect it backwards, and using the library you developed I can at least program the chip, and the screen does initialize the backlight. But cannot see anything after that in terms of graphics. There is a risk given the backwards pin definition that there is something else amiss with this screen. So, questions: Is there a particular version of your library we should try for the ST7735S? DO you think we should be able to get this working, or cut our losses and start afresh with another screen? Starting again will probably result in a 6 week delay, which will not be popular with industrial customers I have waiting. thanks in advance, I will try to send that PM with additional info. Paul James Water ReNu LLC; Just Water Savers USA Inc. Quote Link to post Share on other sites
larsie 121 Posted May 20, 2015 Share Posted May 20, 2015 Hi, i am new to SPI communication, i bought a TFT screen with ST7735 like this one: http://majek.mamy.to/wp-content/uploads/2014/06/red-st7735-back.jpg http://majek.mamy.to/wp-content/uploads/2014/06/red-st7735-front.jpg Can you tell me which pins to connect to TI Launchpad with MSP430G2553, and which version to use? Tried latest one but screen shows nothing, even if there are no error in CCS, Don't know what went wrong I ordered the same display from Aliexpress. Looked promising. I've tried the version of the library that's for the ST7735R (in the first post), but I'm only getting garbage on the screen. (On another display which claims to be ST7735R I've got RobG's library working perfectly)., Is A0 and DC the same? I'm assuming that. Lars Quote Link to post Share on other sites
RafasS 0 Posted December 11, 2015 Share Posted December 11, 2015 Hi rob, i Quote Link to post Share on other sites
RobG 1,892 Posted December 15, 2015 Author Share Posted December 15, 2015 There's 5529 LP define in config file, make sure it is not commented and all other are commented out. Quote Link to post Share on other sites
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