en:projects:myco:start
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en:projects:myco:start [2020-10-31 19:53] – [MyCo TPS - a very small computer programmed via just 3 push buttons as KEYBOARD and 4 LEDs as "DISPLAY" to control some INPUTS and OUTPUTS] juergenuk | en:projects:myco:start [2021-03-26 11:57] (current) – [MyCo-Kit] juergenuk | ||
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- | ====== MyCo TPS | + | ====== MyCo TPS ====== |
- | - a very small computer programmed | + | - a very small computer |
via just 3 push buttons as KEYBOARD | via just 3 push buttons as KEYBOARD | ||
- | and 4 LEDs as " | + | and 4 LEDs as " |
+ | and designed | ||
+ | - digital and analog | ||
- | This project | + | This project |
- | but MyCo / TPS has just gotten a Second Life, as Franzis just launched a new version | + | but MyCo / TPS has just gotten a Second Life, |
- | https:// | + | as Franzis just launched a new version |
+ | https:// | ||
- | Most of the German description should be covered by the Print book we had published: | + | ===== AND the New Book is out now: |
+ | You can actually play with the 40 described examples | ||
+ | ON PAPER ONLY TO START WITH, to write and execute your own code as well, | ||
+ | Or use coins for program execution to see what happens internally | ||
+ | Or use pins for programming - no electronics at all ( and noForth for now ) | ||
+ | for example use the 2 pages | ||
+ | - one with the program, one showing the current contents of all " | ||
+ | https:// | ||
+ | |||
+ | |||
+ | ==== And additional information regarding the 3rd book about MyCo_TPS had to be stored somewhere, | ||
+ | So I started a facebook group. | ||
+ | Just go there, start at the bottom and see additional explanations and examples. | ||
+ | Even doing the HELLO WORLD ... | ||
+ | Now this MyCo_TPS is as well running on the microbit, and on the RPI soon . | ||
+ | OK , these 2 not in Forth yet, but it is probably unavoidable | ||
+ | https:// | ||
+ | |||
+ | |||
+ | Most of the German description should be covered by the Print book we had published | ||
https:// | https:// | ||
- | We prepared a cut down version of the book as a PDF, you find it at http:// | + | We prepared a cut down version of the book as a PDF for download and print, |
+ | you find it at | ||
+ | http:// | ||
- | **and as well a cut down version of the extended Book for you to {{myco_ebook_v26_2014_06_19v2_a5_2015_10_06_print_format_forth_part.pdf|download here.}}** | + | **and as well a cut down version of the extended Book for you {{myco_ebook_v26_2014_06_19v2_a5_2015_10_06_print_format_forth_part.pdf|download here.}}** |
- | And a selection of English documentation at http:// | + | And a selection of English documentation at |
+ | http:// | ||
We added into the extended book now the Forth Implementation that Michael Kalus kindly programmed for the TI MSP430: | We added into the extended book now the Forth Implementation that Michael Kalus kindly programmed for the TI MSP430: | ||
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The kit described in the book teaches programming in a minimal and simple way. No PC is required to handle the kit. There are only a few program statements that MyCo can execute. But that shows and demonstrates many aspects of programming. All programs for the easy-to-build hardware kit are documented and tested." | The kit described in the book teaches programming in a minimal and simple way. No PC is required to handle the kit. There are only a few program statements that MyCo can execute. But that shows and demonstrates many aspects of programming. All programs for the easy-to-build hardware kit are documented and tested." | ||
- | The kit was based on a Holtek HT46F47 - a very low cost Controller. The manual was recently((2015)) translated into English by Juergen Pintaske. And he called the kit now " | + | The kit is based on a Holtek HT46F47 - a very low cost Controller. |
+ | The manual was recently((2015)) translated into English by Juergen Pintaske. And he called the kit now " | ||
+ | The German name TPS - Tastenprogrammierbare Steuerung | ||
This MyCo functionality was transferred in 2015 into another MCU: the MSP430G2553 from Texas Instruments and this time in Forth. | This MyCo functionality was transferred in 2015 into another MCU: the MSP430G2553 from Texas Instruments and this time in Forth. | ||
Line 32: | Line 59: | ||
Then in an open source Forth, the [[https:// | Then in an open source Forth, the [[https:// | ||
- | **Some | + | **Some |
{{jps4-mpe430ltsa_adapt_for_pc.txt.zip|VFX version to download}} | {{jps4-mpe430ltsa_adapt_for_pc.txt.zip|VFX version to download}} | ||
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{{: | {{: | ||
{{: | {{: | ||
+ | |||
+ | |||
+ | ==== Myco Handling Instructions ==== | ||
+ | | ||
+ | Switching on Power or Reset starts MyCo program. | ||
+ | The 4 LEDs at OUT will flash. The indicator LED (PWM LED) is switched off. | ||
+ | Idle State - MyCo is ready and waiting for an input either via S1 / S2 or via the keyboard. | ||
+ | S1 - Switch pressed | ||
+ | S2 - Switch pressed | ||
+ | ' | ||
+ | - To Run a Program already intalled- | ||
+ | In Idle State press S1. MyCo will then enters the Program Run Mode. MyCo programs always start at page 0 address $00. | ||
+ | To terminate a running MyCo program: press S1 or S2 key - or any key on the keyboard. | ||
+ | |||
+ | - Show the Program Flow - | ||
+ | |||
+ | A)-using the 4 LEDs --- | ||
+ | To view the program steps from the outside, a MyCo program has to make outputs to the 4 LEDs, otherwise nothing is visible. Additional LED test output instructions can be added for debugging. Later replaced by NOPs. Extensions: Use a volt meter to check the levels at IN and OUT and to watch – or a multimeter or an oscilloscope. | ||
+ | |||
+ | B) Using Forth and the Serial Interface--- | ||
+ | Using the additional options | ||
+ | The MyCo Program runs using the Interactive Programming Language Forth. There are 3 additional services provided in this mode in order to test the program flow step by step. Using the space bar on the keyboard, you step through the whole program. The staus of all registers and other IO are shown: | ||
+ | |||
+ | LOG writes the MyCo program sequence step by step. Press the space bar to step through the whole program. | ||
+ | |||
+ | STEP displays the entire contents of the MyCo memory in one go. Here as well, step through the whole program by pressing the space bar. Registers and Ports are displayed step by step. | ||
+ | So you see exactly at which point of the program you are and which activity has been executed (single stepping). | ||
+ | RUN starts the MyCo Program in Flash memory. In this way the effects on periphery can be seen. Pressing any key on the keyboard stops the MyCo program execution, and you come back to the Forth Operating System level. | ||
+ | |||
+ | - Programming - | ||
+ | Press S2 when in Idle State. MyCo status changes into the Programming Mode. Programming of a MyCo program is done code block by block (page), then each block byte by byte, and each byte nibble by nibble. To start, first the target page must be selected that will be processed. | ||
+ | |||
+ | - Select Page - | ||
+ | Indicator LED flashes 3 times. Using S1, one of 8 pages can be selected. Default page is page-0. Continue using S2. | ||
+ | |||
+ | - Select Bytes - | ||
+ | By repeatedly pressing S2 one program byte after the other can be displayed. In This way all bytes of the selected page can be inspected, contents will be shown via the 4 LEDs. Here each byte is shown in three steps. | ||
+ | View Memory Contents | ||
+ | Step Indicator LED (PWM) Description of 4 LED display | ||
+ | 1 2x flashing in medium bright | ||
+ | 2 from off -> to bright | ||
+ | 3 from off-> to dim low nibble | ||
+ | |||
+ | The Read/Modify Modus starts at byte address zero, so the 4 LEDs are thus first all switched off. Press S2 and the Hi-nibble of the byte is displayed. | ||
+ | S2 again, and the Lo nibble is displayed. | ||
+ | Press again S2, and MyCo begins another 3-step display, now at byte address +1 | ||
+ | |||
+ | After 16 bytes the procedure starts again at byte 0, MyCo stays on same page (wrap around). | ||
+ | |||
+ | - Edit a Nibble | ||
+ | |||
+ | - Select Byte Start Address – If in step_1 button S2 is kept pressed, MyCo jumps into Start Address Select. Indicator LED flashes 1x, LEDs show the current byte address, incremented via S1. If new address set, S2 changes mode back to 3 step display from the new adddress. | ||
+ | |||
+ | - End Editing and Transfer and Program into FLASH Memory - Press both buttons, S2 + S1 simultaneously; | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | Updated 2021_03_26 | ||
More to come | More to come |
en/projects/myco/start.1604170429.txt.gz · Last modified: 2020-10-31 19:53 by juergenuk