more stuff
This commit is contained in:
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a15ba940f2
commit
2fa28c4313
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@ -37,6 +37,8 @@ if(FAMILY STREQUAL "rp2040")
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${CMAKE_CURRENT_SOURCE_DIR}/src/swim/swim_hw.c
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${CMAKE_CURRENT_SOURCE_DIR}/src/tool78/tool78_hw_helpers.c
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${CMAKE_CURRENT_SOURCE_DIR}/src/tool78/tool78_hw_test_uart2.c
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${CMAKE_CURRENT_SOURCE_DIR}/src/tool78/tool78_hw_78k0_uart2.c
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${CMAKE_CURRENT_SOURCE_DIR}/src/tool78/tool78_hw_78k0_uart2_extclk.c
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${CMAKE_CURRENT_SOURCE_DIR}/src/test/piotest.c
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)
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@ -0,0 +1 @@
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notes.txt
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@ -22,19 +22,19 @@
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#define PINOUT_TOOL78_RL78_RX 19
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enum tool78_target {
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tool78k0_kx2_uart2 = 0x12,
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tool78k0_kx2_spi = 0x13,
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tool78k0_kx2_uart2_extclk = 0x14,
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tool78k0_uart2 = 0x12,
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tool78k0_spi = 0x13,
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tool78k0_uart2_extclk = 0x14,
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tool78k0r_kx3l_uart1 = 0x21,
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tool78k0r_uart1 = 0x21,
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tool78rl_uart1 = 0x31,
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tool78rl_uart2 = 0x32,
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tool78rl_ocd = 0x38, // FIXME: do this in a better way
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tool78_mcu_mask = 0xf0,
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tool78_mcu_78k0_kx2 = 0x10,
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tool78_mcu_78k0r_kx3l = 0x20,
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tool78_mcu_78k0 = 0x10,
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tool78_mcu_78k0r = 0x20,
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tool78_mcu_rl78 = 0x30,
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tool78_phy_mask = 0x0f,
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@ -0,0 +1,89 @@
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#include <hardware/gpio.h>
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#include <hardware/pio.h>
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#include <pico/time.h>
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#include "tool78_defs.h"
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#include "tool78_hw_helpers.h"
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#include "tool78.pio.h"
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#include "tool78_hw.h"
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static struct tool78_pio_vars vars;
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int t78k0_uart2_send(int len, const uint8_t* data, int32_t timeout_us);
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void t78k0_uart2_deinit(void);
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int t78k0_uart2_has_available(void);
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int t78k0_uart2_recv(int len, uint8_t* data, int32_t timeout_us);
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int t78k0_uart2_send(int len, const uint8_t* data, int32_t timeout_us);
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static bool t78k0_uart2_init(void) {
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if (!tool78_hw_init_help(&tool78_uart_tx_program, &tool78_uart_rx_program,
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&vars)) return false;
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vars.exclusive = false;
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// extclk between 2 and 20 MHz
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tool78_entryseq_78k0(tool78k0_uart2);
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tool78_uart_tx_program_init(PINOUT_TOOL78_PIO, vars.smtx, vars.txoff,
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PINOUT_TOOL78_78K0_TXMOSI, 9600, true);
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tool78_uart_rx_program_init(PINOUT_TOOL78_PIO, vars.smrx, vars.rxoff,
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PINOUT_TOOL78_78K0_RXMISO, 9600, true);
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// magic initial not-really-commands
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// wait tCOM or tR1 (unclear) (>445k/8M s + (2^16)/2M s)
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// send 0x00
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// wait t12 (>15k/8M s)
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// send 0x00
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// wait t2C (>15k/8M s)
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busy_wait_us_32(477768); // tCOM or tR1
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uint8_t byte = 0x00;
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t78k0_uart2_send(1, &byte, -1);
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busy_wait_us_32(1900); // t12
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t78k0_uart2_send(1, &byte, -1);
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busy_wait_us_32(1900); // t2C
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// now a reset command needs to be sent, but we leave that to the upper
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// (command processing) layer as it has to know about those timings anyway
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return true; // all is well!
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}
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void t78k0_uart2_deinit(void) {
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tool78_hw_deinit_help(&tool78_uart_tx_program, &tool78_uart_rx_program,
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&vars);
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tool78_deinit_78k0();
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}
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int t78k0_uart2_has_available(void) {
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return tool78_hw_has_available_help(&vars);
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}
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int t78k0_uart2_recv(int len, uint8_t* data, int32_t timeout_us) {
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return tool78_hw_help_recv(&vars, len, data, timeout_us);
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}
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int t78k0_uart2_send(int len, const uint8_t* data, int32_t timeout_us) {
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return tool78_hw_help_send(&vars, 12/*inter-byte delay (us) tDR = 90/8M s */,
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len, data, timeout_us);
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}
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struct tool78_hw tool78_hw_78k0_uart2 = {
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.target = tool78k0_uart2,
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.init = t78k0_uart2_init,
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.deinit = t78k0_uart2_deinit,
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.has_available = t78k0_uart2_has_available,
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.recv = t78k0_uart2_recv,
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.send = t78k0_uart2_send
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};
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@ -0,0 +1,81 @@
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#include <hardware/gpio.h>
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#include <hardware/pio.h>
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#include <hardware/pwm.h>
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#include <pico/time.h>
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#include "tool78_defs.h"
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#include "tool78_hw_helpers.h"
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#include "tool78.pio.h"
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#include "tool78_hw.h"
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static struct tool78_pio_vars vars;
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int t78k0_uart2_send(int len, const uint8_t* data, int32_t timeout_us);
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void t78k0_uart2_deinit(void);
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int t78k0_uart2_has_available(void);
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int t78k0_uart2_recv(int len, uint8_t* data, int32_t timeout_us);
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int t78k0_uart2_send(int len, const uint8_t* data, int32_t timeout_us);
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static bool t78k0_uart2_extclk_init(void) {
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if (!tool78_hw_init_help(&tool78_uart_tx_program, &tool78_uart_rx_program,
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&vars)) return false;
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vars.exclusive = false;
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// extclk between 2 and 20 MHz, let's do 8 MHz
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pwm_config pc = pwm_get_default_config();
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pwm_config_set_clkdiv(&pc, (float)clock_get_hz(clk_sys) / 8e6);
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pwm_init(pwm_gpio_to_slice_num(PINOUT_TOOL78_78K0_CLOCK), &pc, true);
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gpio_set_function(PINOUT_TOOL78_78K0_CLOCK, GPIO_FUNC_PWM);
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tool78_entryseq_78k0(tool78k0_uart2_extclk);
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tool78_uart_tx_program_init(PINOUT_TOOL78_PIO, vars.smtx, vars.txoff,
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PINOUT_TOOL78_78K0_TXMOSI, 9600, true);
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tool78_uart_rx_program_init(PINOUT_TOOL78_PIO, vars.smrx, vars.rxoff,
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PINOUT_TOOL78_78K0_RXMISO, 9600, true);
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// magic initial not-really-commands
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// wait tCOM or tR1 (unclear) (>445k/8M s + (2^16)/2M s)
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// send 0x00
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// wait t12 (>15k/8M s)
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// send 0x00
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// wait t2C (>15k/8M s)
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busy_wait_us_32(477768); // tCOM or tR1
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uint8_t byte = 0x00;
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t78k0_uart2_send(1, &byte, -1);
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busy_wait_us_32(1900); // t12
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t78k0_uart2_send(1, &byte, -1);
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busy_wait_us_32(1900); // t2C
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// now a reset command needs to be sent, but we leave that to the upper
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// (command processing) layer as it has to know about those timings anyway
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return true; // all is well!
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}
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static void t78k0_uart2_extclk_deinit(void) {
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t78k0_uart2_deinit(); // sets extclk to no func
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pwm_set_enabled(pwm_gpio_to_slice_num(PINOUT_TOOL78_78K0_CLOCK), false);
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}
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struct tool78_hw tool78_hw_78k0_uart2_extclk = {
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.target = tool78k0_uart2_extclk,
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.init = t78k0_uart2_extclk_init,
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.deinit = t78k0_uart2_extclk_deinit,
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.has_available = t78k0_uart2_has_available,
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.recv = t78k0_uart2_recv,
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.send = t78k0_uart2_send
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};
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@ -145,6 +145,7 @@ int tool78_hw_help_send(const struct tool78_pio_vars* vars, uint32_t sleep_us_be
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*(volatile uint8_t*)&PINOUT_TOOL78_PIO->txf[vars->smtx] = bitswap(data[i]);
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// FIXME: THIS IS NOT HOW TO WAIT BETWEEN TWO BYTES YOU DOOFUS
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if (sleep_us_between_bytes) busy_wait_us_32(sleep_us_between_bytes);
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}
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@ -153,7 +154,7 @@ end:
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// wait until everything is sent before reenabling the RX SM again
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while (!pio_sm_is_tx_fifo_empty(PINOUT_TOOL78_PIO, vars->smtx))
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; // wait until FIFO is clear
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while (!(PINOUT_TOOL78_PIO->fdebug & ((1u << vars.smtx) << PIO_FDEBUG_TXSTALL_LSB)))
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while (!(PINOUT_TOOL78_PIO->fdebug & ((1u << vars->smtx) << PIO_FDEBUG_TXSTALL_LSB)))
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; // now wait for the SM to hang on the next 'pull'
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pio_sm_set_enabled(PINOUT_TOOL78_PIO, vars->smrx, true);
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@ -162,3 +163,70 @@ end:
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return i;
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}
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// ------
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void tool78_entryseq_78k0(enum tool78_entry typ) {
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// set TX, RX (and MISO MOSI nSCK) pullup, not driven
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// set nRESET, FLMD0 low ;; set pindir to out ;; set GPIO func to SIO
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// wait some time (tDP: >1ms and tRST for reset low >2ms)
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// FLMD0 high
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// wait some time (tPR: >2ms)
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// nRESET high
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// wait some time (tRP: 60k/8M s)
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// <n> FLMD0 pulses (period/2 = 10us)
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// wait some time (end happens 239k/8M s after nRESET high)
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// NOTE: datasheet tells to start doing pulses in the middle of the 60k..239k interval
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gpio_pull_up(PINOUT_TOOL78_78K0_TXMOSI);
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gpio_pull_up(PINOUT_TOOL78_78K0_RXMISO);
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gpio_pull_up(PINOUT_TOOL78_78K0_CLOCK );
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gpio_set_function(PINOUT_TOOL78_78K0_TXMOSI, GPIO_FUNC_NULL);
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gpio_set_function(PINOUT_TOOL78_78K0_RXMISO, GPIO_FUNC_NULL);
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gpio_set_function(PINOUT_TOOL78_78K0_CLOCK , GPIO_FUNC_NULL);
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gpio_put_masked((1u<<PINOUT_TOOL78_nRESET) | (1u<<PINOUT_TOOL78_78K0_FLMD0), 0u);
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gpio_set_dir_out_masked((1u<<PINOUT_TOOL78_nRESET) | (1u<<PINOUT_TOOL78_78K0_FLMD0));
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gpio_set_function(PINOUT_TOOL78_nRESET , GPIO_FUNC_SIO);
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gpio_set_function(PINOUT_TOOL78_78K0_FLMD0, GPIO_FUNC_SIO);
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busy_wait_ms(3); // tDP or tRST
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gpio_put(PINOUT_TOOL78_78K0_FLMD0, true);
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busy_wait_ms(3); // tPR
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gpio_put(PINOUT_TOOL78_nRESET, true);
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busy_wait_us_32(37500); // tRPE/2
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for (int i = 0; i < (int)typ; ++i) {
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gpio_put(PINOUT_TOOL78_78K0_FLMD0, false);
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busy_wait_us_32(12);
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gpio_put(PINOUT_TOOL78_78K0_FLMD0, true);
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busy_wait_us_32(12);
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}
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busy_wait_us_32(37500); // tRPE/2
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}
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void tool78_deinit_78k0(void) {
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// nRESET low here
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gpio_put(PINOUT_TOOL78_nRESET, false);
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// start deiniting stuff
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gpio_disable_pulls(PINOUT_TOOL78_78K0_TXMOSI);
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gpio_disable_pulls(PINOUT_TOOL78_78K0_RXMISO);
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gpio_disable_pulls(PINOUT_TOOL78_78K0_CLOCK );
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gpio_disable_pulls(PINOUT_TOOL78_78K0_FLMD0 );
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gpio_set_function(PINOUT_TOOL78_78K0_TXMOSI, GPIO_FUNC_NULL);
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gpio_set_function(PINOUT_TOOL78_78K0_RXMISO, GPIO_FUNC_NULL);
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gpio_set_function(PINOUT_TOOL78_78K0_CLOCK , GPIO_FUNC_NULL);
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gpio_set_function(PINOUT_TOOL78_78K0_FLMD0 , GPIO_FUNC_NULL);
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busy_wait_ms(3);
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gpio_pull_down(PINOUT_TOOL78_nRESET);
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gpio_set_function(PINOUT_TOOL78_nRESET, GPIO_FUNC_NULL);
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}
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@ -34,6 +34,11 @@ int tool78_hw_help_recv(const struct tool78_pio_vars* vars,
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int tool78_hw_help_send(const struct tool78_pio_vars* vars, uint32_t sleep_us_between_bytes,
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int len, const uint8_t* data, int32_t timeout_us);
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// performs an entry sequence using SIO
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void tool78_entryseq_78k0(enum tool78_entry typ);
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// pulls nRESET low & puts other stuff in hi-Z
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void tool78_deinit_78k0(void);
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#endif
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@ -54,7 +54,7 @@ static int test_send(int len, const uint8_t* data, int32_t timeout_us) {
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}
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struct tool78_hw tool78_hw_test_uart2 = {
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.target = tool78k0_kx2_uart2,
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.target = tool78k0_uart2,
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.init = test_init,
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.deinit = test_deinit,
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